KR100570726B1 - The battery for using in a super low temperature condition - Google Patents

Abstract

The present invention relates to an ultra low temperature super battery pack having excellent temperature compensation environmental resistance, and more particularly, there is a drawback that conventional lithium polymers and lithium ion batteries do not exhibit performance at low temperatures. Lightweight, high capacity and long life, but it is limited by the use environment due to low temperature characteristics. In addition, the battery pack is designed to keep the battery warm, and the temperature compensation battery pack is composed of a dedicated microcomputer technology for temperature compensation control by checking the heater device and the use state and temperature so that the battery temperature does not decrease. Its purpose is to use lithium ion batteries and lithium polymer batteries in wireless communication devices, broadcasting and communication devices, and electric vehicle systems used in cold places such as the sea.

Temperature Compensation, Battery Pack, Lithium Ion Battery, Lithium Polymer Battery

Description

Super low temperature super battery pack with excellent temperature-resistance environmental resistance {THE BATTERY FOR USING IN A SUPER LOW TEMPERATURE CONDITION}

1 is a perspective view showing an internal core pack structure of a super low temperature super battery pack having excellent temperature compensation environmental resistance according to the present invention;

2 is an exploded perspective view illustrating an internal core pack structure of an ultra low temperature super battery pack having excellent temperature compensation environmental resistance according to the present invention;

Figure 3 is a perspective view showing an external hard pack structure consisting of the upper and lower cover of the ultra-low temperature super battery pack excellent temperature compensation environmental resistance according to the present invention,

Figure 4 is an embodiment showing the structure of the secondary battery insertion unit configured inside the lower cover of the ultra-low temperature super battery pack excellent in temperature compensation according to the present invention,

Figure 5 is a block diagram showing the components of the internal circuit portion (SCM) of the ultra-low temperature super battery pack having excellent temperature compensation environmental resistance according to the present invention,

Figure 6 is a circuit diagram of the internal circuit portion (SCM) of the ultra-low temperature super battery pack excellent in temperature compensation according to the present invention.

7 is a flowchart illustrating the temperature compensation control of the microcomputer control unit of the ultra low temperature super battery pack having excellent temperature compensation environmental resistance according to the present invention;

8 is a graph comparing / testing low-temperature discharge characteristics of an ultra low temperature super battery pack (battery) and a conventional general battery pack (battery) according to the present invention.

※ Explanation of code for main part of drawing ※

10: core pack structure 20: hard pack structure

110: battery unit 120: temperature detection sensor unit

130: heating wire 150: internal circuit (SCM)

160: auxiliary battery unit 170: coverlay

210: upper cover 220: lower cover

The present invention, in order to solve the drawback that the existing lithium polymer and lithium ion battery does not exhibit performance at low temperatures, designing a battery pack with a structure that can insulate the lithium polymer and lithium ion battery and lower the temperature of the battery The present invention relates to an ultra low temperature super battery pack having excellent environmentally-compensated temperature resistance, which is composed of a dedicated microcomputer technology for temperature compensation control by checking a heater device and a use state and temperature so as not to go.

Recently, with the rapid development of the electronics, telecommunications, and computer industries, camcorders, mobile phones, notebook PCs, etc. have emerged. Accordingly, there is an urgent demand for the development of small, high-performance, rechargeable secondary batteries that are light, long-lived, and reliable. In addition, as a solution to environmental and energy problems, the development of large secondary batteries for the realization of electric vehicles and the efficient use of late-night idle power has emerged seriously. In order to meet this demand, lithium secondary batteries have received a lot of attention, and some have been commercialized.

The lithium secondary battery may be divided into a lithium metal battery using an organic solvent electrolyte, a lithium ion battery and a lithium polymer battery using a solid polymer electrolyte, depending on the type of electrolyte. Lithium metal battery uses lithium metal as a negative electrode and has difficulty in commercialization due to low cycle life and safety.To overcome this problem, a lithium ion battery using carbon as a negative electrode instead of lithium metal was developed in 1991 by Sony Energytec in Japan. Commercialized for the first time. Currently, mass production is undertaken by various battery companies in Japan, and some companies in Korea have completed mass production of lithium-ion batteries.

However, since lithium ion batteries do not occur well at low temperatures, they are difficult to use in wireless communication devices, broadcasting communication devices, and electric vehicle systems in cold areas such as mountains and seas below 40 ° C. .

As such, 20% of the battery use capacity reaches 40% of the heat generated by the lithium ion battery and the lithium polymer battery below 40 ° C. In the conventional technology, since it is used in a natural state, only 30% or less of capacity can be obtained depending on the maker of the battery. It is also true that battery makers do not guarantee the use below zero degrees Celsius.

In order to solve the problems of the prior art as described above of the present invention, it is possible to insulate the battery in order to solve the drawback that the existing lithium polymer and lithium ion battery does not exhibit performance at low temperatures The purpose of the present invention is to design a battery pack with a structure, and to provide a temperature-compensated battery pack composed of a dedicated microcomputer technology for temperature compensation control by checking a heater device and a use state and temperature so that the temperature of the battery does not decrease.

The temperature-compensated battery pack according to the present invention to achieve the above object,

A battery unit including a rectangular lithium polymer battery and a lithium ion battery, each of which is arranged in a vertical direction and stacked in plurality;

A temperature sensor unit attached to one side of the battery cell for measuring temperature of the lithium polymer battery and the lithium ion battery;

A heating wire portion to which a heating element having a film structure is attached in the stacking direction of the battery cell;

A double side adhesive tape attached to an edge portion of the hot wire portion to adhere to a neighboring battery cell;

One side of the battery unit includes an internal circuit unit (SCM) consisting of a 'b' shaped PCB board to be electrically connected to the battery unit, the temperature sensor unit, the heating wire unit, and the auxiliary battery unit;

An auxiliary battery unit attached to one side of the inner circuit part of the 'b' shape and used as an auxiliary power source;

A coverlay formed at a predetermined thickness on one side of one side of the battery unit and one side of an internal circuit unit (SCM) to fix a plurality of conductive wiring patterns;

The core pack has an internal structure that is engaged with the shape of the battery pack, the temperature sensor unit, the heating wire unit, the internal circuit unit (SCM), the auxiliary battery unit, and the coverlay core pack (Core Pack). ) Is achieved by being composed of an upper and a lower cover formed so as to be stacked and joined.

In addition, the microcomputer control unit includes a current sensing unit on one side of the battery protection circuit unit to check the operating state of the main body in real time while detecting a current by a voltage drop of the battery protection circuit (PCM) to prevent current consumption when the battery unit is stored for a long time. .

The heating portion is configured to enable uniform temperature heating and thin device design using a heating element having a film structure other than a coil or wire as a heating element.

Although the criterion of the low temperature described in the present invention is set to below minus 45 ° C, the user is configured to set the low temperature for convenience.

And, in the present specification, the cryogenic super battery pack has an external hard pack 20 structure consisting of upper and lower covers 210 and 220, a battery unit 110, a temperature sensor unit 120, a heating wire unit 130, and an internal circuit unit. (SCM) 150, the auxiliary battery unit 160, the coverlay 170 is composed of an internal core pack (Core Pack) (10) structure combined.

Hereinafter, the technical idea of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing an internal core pack structure of a temperature-compensated battery pack according to the present invention, Figure 2 is an exploded perspective view decomposing the internal core pack structure of a temperature-compensated battery pack according to the present invention 3 is a perspective view showing a combined external hard pack structure consisting of an upper and a lower cover of a temperature-compensated battery pack according to the present invention, and FIG. 4 is an inside of a lower cover of a temperature-compensated battery pack according to the present invention. One embodiment also shows the structure of the auxiliary battery insertion unit configured in the.

1 and 2, the internal core pack (Core Pack) 10 and the external hard pack (20) of the temperature-compensated battery pack according to the present invention is the battery unit 110, temperature Detection sensor unit 120, heating wire unit 130, double side adhesive tape unit (Double Side Adhesive Tape) 140, internal circuit unit (SCM) 150, secondary battery unit 160, coverlay 170, phase Consists of lower covers 210 and 220.

The battery unit 110 is a stack of a plurality of battery cells 111 consisting of a rectangular lithium polymer battery and a lithium ion battery arranged in the vertical direction, which is of the heating wire unit 130 attached to the battery cell 111 The double-sided adhesive tape 140 is adhered along the edge and connected to a plurality of neighboring battery cells 111 to form the battery unit 110 having a laminated structure.

In addition, the plurality of battery cells 111 stacked on the top of the battery unit 110 are electrically connected to each other through the wire lines 112, and the front and side surfaces of the battery unit 110 are stacked by external pressure. A plurality of coverlays 170 may be attached and fixed to prevent the branch 110 from being warped or the wiring connection is weakened.

The temperature sensor 120 is attached to one side of the battery cell 111 to measure the temperature of the lithium polymer battery and the lithium ion battery, which is attached to one side of the top, bottom, side of the battery cell 111. Alternatively, the core pack 10 may be attached to one side of the upper and lower covers 210 and 220 to which the core pack 10 is inserted and fixed.

The heating wire unit 130 is a heating element 131 of the film structure is attached to the stacking direction of the battery cell 111, the heating element 131 is a uniform temperature by using a heating element of the film structure rather than a coil or wire It has a good effect of heating and thin device design.

In addition, in the present invention, the material of the silicon rubber heater (Silicon Rubber Heater) is used as the heating element 131, the silicon rubber heater (Silicon Rubber Heater) is a flexible, thin, flat heater that can be used in place of the metal heater, It is a material that can be used at high power density and -62 ~ 260 degrees. It can be used in rough surfaces, in wet places or exposed to chemicals, and has easy detachable properties.

The double side adhesive tape 140 is attached to the edge of the heating wire 130 to be bonded to the neighboring battery cell 111. The double side adhesive tape 140 140 is a tape for attaching, fixing and connecting the adhesive on both sides of the various supports, the base material is a foam (Poly Etylene), acrylic (Acrlic), polyvinyl chloride (PVC: polyvinyl chloride), It is composed of double synthetic rubber (EPDM) and synthetic rubber foam, and has characteristics such as attachment, fixing, insulation, sealing, cushioning, vibration and noise prevention.

The internal circuit unit (SCM) 150 is installed at one side of the battery unit 110 and electrically connected to the battery unit 110, the temperature sensor 120, the hot wire unit 130, and the auxiliary battery unit 160. It is made of a 'b' shaped PCB substrate, which is to be fixed to one side of the battery unit 110 by making a soldering portion (Land) on one side of the rear surface of the PCB substrate to be a wire solder (Wire Solder). In addition, a plurality of coverlays 170 are attached to one side surface of the internal circuit unit SCM 150 to prevent the internal circuit unit SCM 150 from being twisted by the external pressure or weakening the wiring connection with other components. Can be fixed.

The reason why the shape of the internal circuit portion (SCM) 150 in the present invention is configured as a 'b' shape is that the PCB substrate of the battery unit 110 and the internal circuit portion (SCM) 150 is joined to the remaining portions by wire solder. The battery unit 160 is inserted to allow the plus (+) terminal and the minus (-) terminal of the auxiliary battery unit 160 to be directly connected to the PCB board of the internal circuit unit (SCM) 150.

By using these characteristics, the shape of the internal circuit unit (SCM) 150 according to the present invention can be configured in various shapes such as 'b' shape, 'c' shape, not 'b' shape.

The internal circuit unit (SCM) 150 is connected to the battery unit 110 to apply the power required to drive the electronic device, and is connected to the temperature sensor 120, the temperature of the lithium polymer battery and the lithium ion battery in real time Measure the temperature, drive the heating element at low temperature by being connected to the heating unit 130, control the driving of the heating unit at low temperature by connecting with the heating unit 151, and a protection circuit module (PCM) 152. It is connected to prevent the over-discharge, over-charge current flow to the battery unit, connected to the auxiliary power supply 160 to drive the heating wire unit at low temperature, and to be used as the driving power of the microcomputer control unit, the microcomputer control unit 153 Temperature compensation control through the operation of the hot-wire drive unit by comparing the level of the battery unit detected by the temperature sensor unit below the reference value and whether the detected current is in use or in standby state. It is connected to the battery output unit 154 is configured to output the voltage of the battery unit 110.

The auxiliary battery unit 160 is attached to one side of the inner circuit portion of the 'b' is used as an auxiliary power source, and more specifically, the auxiliary battery unit 160 is connected to one side of the power input terminal of the heating wire unit 130 and the microcomputer control unit 153. It is used as a power source for driving a heating wire (at minus 45 ° C or less) and a driving power source for the microcomputer control unit 153. The auxiliary battery unit 160 according to the present invention uses a nickel hydrogen or nickel cadmium battery excellent in low temperature operation characteristics.

Here, nickel hydrogen is a battery using nickel as a positive electrode active material, a hydrogen storage alloy as a negative electrode active material, and an alkaline aqueous solution as an electrolyte. The energy density per unit volume is twice as high as that of a nickel-cadaba battery, and thus has higher capacity than a nickel-cadmium battery. It is capable of overdischarging and overcharging, and it has the characteristics that it can be charged and discharged more than 500 times because of its rapid charging / discharging, small size, light weight and long charge / discharge cycle life.

Nickel cadmium batteries use nickel as a positive electrode active material, cadmium as a negative electrode active material, and an alkaline solution as an electrolyte solution, which has low internal resistance and can withstand harsh use environments such as high discharge rate, low temperature, overdischarge, and overcharge. There is an advantage, the charging temperature range is 0 ℃ ~ 45 ℃, the discharge temperature range has a characteristic capable of discharging in the temperature range of -20 ℃ to 60 ℃ wider than when charging.

The cover lay 170 is formed with a predetermined thickness on one side of the battery unit 110, one side of the battery unit 110, and one side of the internal circuit unit 150 to fix a plurality of conductive wiring patterns. (170) is a composite film coated with a thermosetting flame retardant epoxy adhesive on a polyimide film to protect and insulate the exposed surface of an etched Flexible Copper Clad Laminate (FCCL) circuit, and is heat-resistant, electrically insulating, flame-retardant, and Flexibility and flowability of the adhesive have uniform properties.

The upper and lower covers 210 and 220 have an internal battery unit 110, a temperature sensor 120, a heating wire unit 130, an internal circuit unit 150, an auxiliary battery unit 160, and a coverlay ( 170 is formed to engage with the shape of the combined core pack (Core Pack) (10) is formed so that the core pack (Core Pack) 10 is stacked and coupled.

And, as shown in Figure 4, the lower cover 220, the secondary battery inserting portion 221 is formed in a portion that is in contact with the inner circuit portion (SCM) 150 of the core pack (Core Pack) (10). The auxiliary battery is separately inserted from the outside.

Hereinafter, a specific operation through the internal circuit unit (SCM) 150 that is a component of the temperature-compensated battery pack according to the present invention having the above configuration will be described.

5 is a block diagram showing the components of the internal circuit unit (SCM) of the temperature-compensated battery pack according to the present invention, Figure 6 is a circuit diagram of the internal circuit unit (SCM) of the temperature-compensated battery pack according to the present invention It is about.

The internal circuit unit (SCM) 150 according to the present invention includes a battery unit 110, a temperature sensor unit 120, a battery protection circuit unit (PCM) 152, an auxiliary battery unit 160, and a hot wire unit. 130, a heat ray driver 151, a microcomputer control unit 153, a current sensing unit 153-1, and a battery output unit 154.

The battery unit 110 is composed of a lithium ion battery or a lithium polymer battery, etc., and a temperature sensing sensor (thermistor) 120 for measuring the temperature of the lithium ion battery or the lithium polymer battery is connected to one side.

The temperature sensor 120 is connected to P2.1 / A1 and P2.2 / A2 which are input terminals of the microcomputer control unit through resistors R33 and R34.

Meanwhile, the dual n-channel FET Q9 is connected to the input terminal P1.3 of the microcomputer control unit so that the output side of the battery unit 110 is connected to the sensing resistor R38 so as to periodically check the flow of current required for driving the electronic device. .

The battery protection circuit unit 152 is a circuit which is essentially attached to a lithium ion battery pack and a lithium polymer battery pack, and functions as a prohibition of over discharge, overcharge, overdischarge current, and the like. This is commonly called a Protection Circuit Module (PCM).

The PCM is a circuit that protects the battery unit by blocking an electrical circuit by monitoring the voltage and current of the battery unit 110 including the lithium ion battery and the lithium polymer battery, and detecting the overcharge voltage and the overdischarge voltage and overcurrent.

As shown in FIG. 6, the PCM 152 is connected to the + terminal and the-terminal of the battery unit 110. When the voltage of the battery unit 110 exceeds a predetermined voltage, the PCM 152 cuts off the FET Q2 to output the battery output unit 154. ) Is blocked, and when the battery unit 110 is lower than a predetermined voltage, the FET Q1 is blocked to block the discharge of the battery output unit 154.

The auxiliary battery unit 160 is connected to one side of the power input terminal of the heating wire unit 130 and the microcomputer control unit 153 and drives the power source and the microcomputer control unit 60 to drive the heating wire at low temperature (less than 45 ° C). It is used as a power source, which rectifies and smoothes the current flowing out of the auxiliary battery unit 160 through the capacitor C8 connected to one side, and the positive terminal of the auxiliary battery unit has a low dropout voltage. It is connected to the input supply voltage terminal (IN) of the regulator (U2), the negative terminal of the auxiliary battery unit is connected to the ground (GND) of the low-dropout voltage regulator (U2) to low-dropout Allow low-dropout voltage to be generated.

In addition, the low-dropout voltage regulator U2 is connected to the P-channel MOSFET Q3 connected to the output terminal P1.1 of the microcomputer control unit 153 on one side thereof, and is connected to the microcomputer control unit at low temperature (less than 45 ° C). The low-dropout voltage regulator U2 is driven to apply power.

The heating wire unit 130 is a heating element 131 of the silicon rubber heater (Silicon Rubber Heater) is attached to the stacking direction of the battery cell 111, which is the power input terminal (VCC) of the auxiliary battery unit 160 on one side Dual N-channel FET Q8 of the heating unit 151 on the other side by driving the silicon rubber heater (silicon rubber heater) when the power is supplied from the auxiliary battery unit 160 at low temperature (less than 45 ℃ below) connected to the It is connected to and controls the driving of the hot wire unit 130.

The hot wire driving unit 151 is connected to one side of the hot wire unit 130 and controls to drive the hot wire unit 130 at a low temperature, which is composed of a dual N-channel FET Q8, and a dual N-channel FET. The heating wire unit 130 is connected to the drain of Q8, and the ground (GND) is connected to the source of the dual N-channel FET Q8, and the microcomputer control unit 153 through the sensing resistor R28 along the gate of the dual N-channel FET Q8. It is connected to the output terminal P1.2 of the hot wire driving unit 151 is driven through the output signal of the microcomputer control unit 153 at a low temperature (less than minus 45 ℃).

The microcomputer control unit 153 compares a level of whether the temperature of the battery unit 110 sensed by the temperature sensor 120 is equal to or less than a reference value and whether the sensed current is being used or in a standby state. The temperature compensation is controlled through the operation of the pulse generator, which controls the amount of heat generated by the pulse driving (PWM) according to the magnitude of the temperature difference.

The microcomputer control unit 153 has an input terminal P2.0 / A0 connected to the OP amplifier output unit of the current sensing unit 153-1, and the input terminals P2.1 / A1 and P2.2 / A2 are sensing resistors R33, It is connected to the temperature sensor unit (TH1, TH2) 120 through R34, the output terminal P1.1 is connected to the P-channel MOSFET Q3 for driving the auxiliary battery unit 160, the output terminal P1.2 is sensed The resistor R28 is connected to the N-channel FET Q8 of the hot wire driving unit 151, and the input terminal P1.3 is connected to the dual n-channel FET Q9 connected to the sensing resistor R38 of the battery unit 110.

The temperature compensation control of the microcomputer control unit according to the present invention having such a configuration will be described.

First, as shown in FIG. 7, a key on mode step of the ultra low temperature super battery pack is performed. (S310) This is to set the low temperature reference value of the ultra low temperature super battery pack, and it may be below zero for the convenience of the user. The temperature can be set at -80 ° C. Here, minus 45 degrees Celsius is set to low temperature.

At this time, the low temperature reference value (zero below 45 ° C) set in the key setting mode state becomes the low temperature reference value (zero below 45 ° C) of the microcomputer control unit (S320).

Next, the temperature of the battery pack through the temperature sensor unit formed on one side of the ultra-low temperature super battery pack is checked in real time whether the low temperature (zero below 45 ℃) (S330).

When the temperature sensed by the temperature sensor is low (less than or equal to 45 ℃), the power of the auxiliary battery unit is applied to the microcomputer control unit through a low-dropout voltage regulator (U2) (S340 ~ S350).

At low temperature (less than 45 ℃ below) the microcomputer control unit is driven to send a control signal to the hot wire drive unit through the output terminal P1.2 to drive the hot wire unit attached to one side of the battery unit (S360).

At this time, the microcomputer control unit increases the time that the current flows to the silicon rubber heater of the heating wire, and if the temperature from the measured temperature monitoring sensor is less than 45 ° C, the current to the silicon rubber heater of the heating wire. By reducing the time to pass the automatic control by reducing the current consumption of the ultra-low temperature super battery pack to efficiently control the temperature compensation (S370).

In addition, the microcomputer control unit 153 drives the N-channel FET Q8 of the heat wire driving unit 151 to flow a current to the silicon rubber heater of the heat wire unit 130 at a low temperature (below 5 ° C or less). Let's do it. At this time, since the threshold voltage of the N-channel FET Q8 is about 0.7V to 0.8V, no channel is formed when the V _GS (gate voltage) of the N-channel FET Q8 is below the threshold voltage, and the channel is formed above the threshold voltage. When the current proportional to V _DS (drain voltage) flows (ON), and the V _DS (drain voltage) becomes higher than the effective gate voltage, the heating wire unit 130 operates in a saturation region where the current no longer increases. Therefore, using this characteristic, the microcomputer controller 153 according to the present invention is programmed and stored an algorithm for driving the N-channel FET Q8.

Next, the current detecting unit 153-1 checks the operation state of the main body in real time while detecting current with a voltage drop of the battery protection circuit unit (PCM) 152 to prevent current consumption when the battery unit 110 is stored for a long time. This is to drop the current flowing to both terminals of the sensing resistor R12 of the battery protection circuit (PCM) 152 to the resistors R13 and R14, and the voltage obtained from the resistor R14 is a rail-to-rail operation amplifier. The microcomputer control unit 153 is a comparison set value output value obtained by applying to the input terminal of U4 and applying the voltage detected by the current detection resistor R15 to the + input terminal of the rail-to-rail op amp U4. ) Is passed to the input terminal P2.0 / A0.

The battery output unit 154 according to the present invention is connected to one side of the battery protection circuit unit (PCM) 152 so that the voltage of the battery unit 110 is output, which is a positive (+) terminal R1 resistance of the PCM , R3 is connected to FET Q1, and the negative terminal is connected to the sensing resistor R12 of PCM.

In addition, the battery output unit 154 has a positive external terminal 310 and a voltage conversion external terminal 320 on one side of the internal circuit unit (SCM) 150 to expose the positive terminal 11 and the negative terminal 12 to the outside. , And the negative external terminal 340 can be configured.

Hereinafter, the low-temperature discharge characteristics of the temperature-compensated battery pack (battery) and the conventional general battery pack (battery) according to the present invention will be compared / experimentally.

In this experiment, the charge was cut-off at 25 ° C. with 0.5 C-4.2 V for 3 hours.

The discharge was cut-off at −32 ° C./-10° C./0° C./25° C./45° C./60° C. for 4 hours at 0.2 C-2.75 V.

As shown in FIG. 8, the ultra low temperature super battery pack and the general battery pack according to the present invention have a battery voltage (Cell Voltage) and a battery pack (battery) capacity at 0 ° C./25° C./45° C./60° C. during discharge. Shows the same performance.

However, the general battery pack does not function properly at -25 ° C or lower, and the driving stops. However, it can be seen that the ultra low temperature super battery pack according to the present invention operates normally at -32 ° C.

Therefore, in this experiment, the discharge graph at low temperature (-20 ° C) of the general battery pack and the discharge graph at low temperature (-32 ° C to -10 ° C) of the ultra-low temperature super battery pack will be compared.

As shown in FIG. 8, at low temperature discharge (-20 ° C.), a battery voltage of 3.25 V, a typical battery pack capacity of 1300 mAh, an ultra low temperature super battery pack capacity of 1800 mAh, and a low temperature discharge (-20 ° C.) are shown. At the time, it can be seen that the ultra low temperature super battery pack according to the present invention has improved battery efficiency by about 30% compared to a general battery pack.

As such, by providing a temperature-compensated battery pack according to the present invention, if the state of the electronic device using the lithium ion battery and the lithium polymer battery is standby or currency, the temperature of the lithium ion battery and the lithium polymer battery is low. In this case, the lithium ion battery and the lithium polymer battery are temperature compensated to improve the low temperature characteristics of the lithium ion battery and the lithium polymer battery.

Through such a configuration, the electronic pack having excellent temperature compensation environmental resistance according to the present invention maximizes the advantages of the lithium polymer battery and the lithium ion battery, which have many obstacles to use in a low temperature environment, to exhibit high efficiency discharge characteristics. Very convenient.

Especially, it is very effective in emergency disasters as an electronic pack capable of exerting performance in sea, mountain and infinity.

Since the temperature compensation is used only during use, there is a good effect that the battery is not consumed during storage and transportation.

Claims (14)

A battery unit 111 including a rectangular lithium polymer battery and a lithium ion battery, which are arranged in a vertical direction and stacked in plural numbers, A temperature sensor unit 120 attached to one side of the battery cell 111 to measure the temperature of the lithium polymer battery and the lithium ion battery; The heating wire unit 130 is attached to the heating element 131 of the film structure in the stacking direction of the battery cell 111, A double-sided adhesive tape (140) attached to an edge of the hot wire unit (130) to be bonded to the neighboring battery cell (111), Is installed on one side of the battery unit 110 is made of a 'b' shaped PCB substrate to be electrically connected to the battery unit 110, the temperature sensor 120, the heating wire 130, the auxiliary battery unit 160. Internal circuit unit (SCM) 150, An auxiliary battery unit 160 attached to one side of the inner circuit part of the 'b' shape and used as an auxiliary power source; A coverlay 170 formed at a predetermined thickness on one side of one side of the battery unit and one side of an internal circuit unit (SCM) to fix a plurality of conductive wiring patterns; Core pack having an internal structure in which the battery unit 110, the temperature sensor 120, the hot wire unit 130, the internal circuit unit (SCM) 150, the auxiliary battery unit 160, and the coverlay 170 are combined. (Core Pack) Comprising a shape that is in engagement with the shape of the core pack (Core Pack) 100, the battery pack with a temperature compensation, characterized in that consisting of the upper and lower cover (210,220) formed so as to be combined to overlap . The temperature-compensated battery pack according to claim 1, wherein the heating element (131) is made of a silicon rubber heater. The lithium polymer battery of claim 1, wherein the internal circuit unit 150 is connected to the battery unit 110 to apply power for driving the electronic device, and is connected to the temperature sensor unit 120 in real time. And measures the temperature of the lithium ion battery, is connected to the heating wire unit 130 to drive the heating element at low temperature, connected to the heating wire drive unit 151 to control the driving of the heating wire unit at low temperature, the battery protection circuit unit (PCM: Protection Circuit Module) 152 to prevent over-discharge and over-charge current flow to the battery unit, and is connected to the auxiliary power supply 160 to be used as a power source for driving the hot wire unit at low temperature and a driving power of the microcomputer control unit. , Connected to the microcomputer control unit 153, the temperature of the battery unit detected by the temperature sensor is less than the reference value, and compares the level of whether the detected current is in use or standby state through the operation of the hot-wire drive unit The temperature compensation battery pack, characterized in that the temperature compensation control, and is connected to the battery output unit 154 is configured to output the voltage of the battery unit 110. The input terminal P1 of the microcomputer control unit according to claim 3, wherein the battery unit 110 is connected to the sensing resistor R38 to one side of the output so that the dual n-channel FET Q9 periodically checks the flow of current required to drive the electronic device. A battery pack having a temperature compensation, characterized in that configured in connection with 3. The auxiliary battery unit 160 is smoothed by rectifying the current flowing out of the auxiliary battery unit 160 through the capacitor C8 connected to one side, and the positive terminal of the auxiliary battery unit has a low dropout ( It is connected to the input supply voltage terminal (IN) of the low-dropout voltage regulator (U2), and the negative terminal of the auxiliary battery part is connected to the ground (GND) of the low-dropout voltage regulator (U2). A temperature compensated battery pack, characterized in that configured to be connected to generate a low dropout (Low-Dropout) voltage. The low-dropout voltage regulator U2 is connected to the P-channel MOSFET Q3 connected to the output terminal P1.1 of the microcomputer control unit 153 on one side, and at low temperature (less than or equal to 45 ° C or less). A low-temperature drop-out voltage regulator (U2) is driven so that power is applied to the microcomputer control unit. The method of claim 3, wherein the heating wire unit 130 is connected to the power input terminal (VCC) of the auxiliary battery unit 160 on one side and is supplied with the power of the auxiliary battery unit 160 at low temperature (less than 45 ℃ below) silicon A temperature-compensated battery pack for driving a rubber heater (Silicon Rubber Heater), the other side is configured to be connected to the dual N-channel FET Q8 of the hot wire drive unit 151). 4. The temperature compensation limit according to claim 3, wherein the hot wire driving unit 151 is connected to the output terminal P1.2 of the microcomputer control unit 153 through the sensing resistor R28 along the gate of the dual N-channel FET Q8. Battery pack. 4. The microcomputer control unit 153 has an input terminal P2.0 / A0 connected to an OP amplifier output unit of the current sensing unit 153-1, and input terminals P2.1 / A1 and P2.2 / A2. Is connected to the temperature sensor unit (TH1, TH2) 120 through the sensing resistors R33 and R34, the output terminal P1.1 is connected to the P-channel MOSFET Q3 for driving the auxiliary battery unit 160, the output terminal P1.2 is connected to the N-channel FET Q8 of the hot wire driver 151 through the sensing resistor R28, and the input terminal P1.3 is connected to the dual n-channel FET Q9 connected to the sensing resistor R38 of the battery unit 110. A battery pack having a temperature compensation, characterized in that configured. 10. The method of claim 9, wherein the microcomputer control unit 153 in real time while detecting the current by the voltage drop of the battery protection circuit (PCM) on one side of the battery protection circuit unit 152 to prevent current consumption when the battery unit 110 is stored for a long time. A battery pack having a temperature compensation, characterized by comprising a current detecting unit (153-1) for checking the operating state of the main body. 11. The current sensing unit 153-1 is configured to drop current flowing through both terminals of the sensing resistor R12 of the battery protection circuit unit PCM 152 to resistors R13 and R14, and to provide the rails with the voltage obtained from the resistor R14. To the + input terminal of the rail-to-rail OP amplifier U4, the voltage detected by the current detection resistor R15 is applied to the + input terminal of the rail-to-rail OP amplifier U4. The battery pack having a temperature compensation, characterized in that configured to be delivered to the input terminal P2.0 / A0 of the microcomputer control unit 153 as a comparison set value output value obtained by the addition. The method of claim 1, wherein the auxiliary battery unit 160 is a temperature-compensated battery pack, characterized in that consisting of nickel hydrogen or nickel cadmium battery excellent in low temperature operating characteristics. According to claim 1, The lower cover 220 is characterized in that the auxiliary battery inserting portion 221 is formed in a portion that is in contact with the inner circuit portion (SCM) 150 of the core pack (Core Pack) (10) superimposed. Battery pack with temperature compensation. The key on mode step (S310) of the ultra-low temperature super battery pack, The low temperature reference value (minus 45 ° C.) set in the key setting mode is set to the low temperature reference value (minus 45 ° C.) of the microcomputer control unit (S320), Checking in real time whether the temperature of the battery pack is low temperature (zero below 45 ℃) through the temperature sensor (S330), When the temperature sensed by the temperature sensor is low (less than or equal to 45 degrees Celsius), the power of the auxiliary battery unit is applied to the microcomputer control unit through a low dropout voltage regulator (U2) (S340 ~ S350) and ,  At a low temperature (less than 45 ℃ below) the microcomputer control unit is driven to send a control signal to the hot wire drive unit through the output terminal P1.2 to drive the hot wire unit attached to one side of the battery unit (S360), Increase the time that the current flows from the microcomputer control unit to the silicone rubber heater of the heating wire, and if the temperature from the measured temperature monitoring sensor is below minus 45 ℃, apply the current to the silicon rubber heater of the heating wire. The temperature compensation battery pack, characterized in that consisting of a step (S370) to control the temperature compensation while reducing the current consumption of the ultra-low temperature super battery pack by reducing the flow time.

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