CN209071553U - Battery pack bulge detection device, battery management system, vehicle - Google Patents
Battery pack bulge detection device, battery management system, vehicle Download PDFInfo
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- CN209071553U CN209071553U CN201822240064.5U CN201822240064U CN209071553U CN 209071553 U CN209071553 U CN 209071553U CN 201822240064 U CN201822240064 U CN 201822240064U CN 209071553 U CN209071553 U CN 209071553U
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- battery pack
- pressure
- mould group
- bulge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model embodiment provides battery pack bulge detection device, battery management system, vehicle, battery pack includes several mould groups, battery pack bulge detection device includes: several pressure detecting modules, and a pressure detecting module is correspondingly arranged between the adjacent mould group of every two, and for side have adjacent mould group, the other side close to shell mould group, it is also provided with a pressure detecting module in the side close to shell, pressure detecting module is used to detect the pressure of pressure or mould group relative to shell between corresponding two adjacent mould groups；Main control module when being greater than the first given threshold for the pressure detected by any pressure detecting module, determines that bulge occurs for battery pack.Through the above technical solutions, can pressure between real-time detection battery pack mould group, find battery pack bulge phenomenon in time, detection method is simple and convenient, testing result is accurate and reliable, effectively increases the safety that battery pack uses, and avoids the danger such as kindling caused by battery pack bulge occurs.
Description
Technical field
The utility model relates to battery technology field, in particular to a kind of battery pack bulge detection device, battery management system
System, vehicle.
Background technique
Electric car becomes national governments in recent years and automobile industry research as a kind of energy saving and environment friendly vehicles
Emphasis.Core component of the battery as electric car, the number of battery capacity, determines the course continuation mileage of electric car.But
Motor space is limited, and in order to improve the cruising ability of battery, battery pack energy density is higher and higher.
But battery pack is in use, can meet with various mal-conditions influences, such as generation battery pack overcharges, over-discharge
Battery pack solvent is caused to be oxidized, the loss of voltage, battery pack are short-circuited on battery electrode when battery pack encounters shock, can all be made
At corresponding chemical reaction occurs inside battery pack, battery pack temperature play liter leads to battery pack thermal runaway, so as to cause battery drum
Packet even causes Fire explosion accident, when especially battery pack energy density is larger, it is easier to cause above-mentioned dangerous and thing
Therefore.
If battery pack bulge phenomenon can be found in time, and stop the charge and discharge process of battery pack, additionally it is possible to which reduction is endangered
The probability of danger.But there is no timely detection battery pack bulge phenomenons well in the prior art, and stop filling for battery pack in time
Discharge process and maintenance is repaired to battery pack.
Utility model content
In view of this, the utility model is directed to a kind of battery pack bulge detection device, to find battery pack drum in time
Packet problem.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that a kind of battery pack bulge detection dress
It sets, the battery pack includes several mould groups, and the battery pack bulge detection device includes: several pressure detecting modules, and
It is correspondingly arranged on the pressure detecting module between the adjacent mould group of every two in several mould groups, and side is deposited
In adjacent mould group, the other side is also equipped with one in the side close to the shell close to the mould group of the shell of the battery pack
Pressure detecting module 100, wherein pressure detecting module 100 is used to detect the pressure or mould group between corresponding two adjacent mould groups
Pressure relative to battery pack housing；Main control module, for obtaining the pressure detecting module pressure detected, and any
When pressure detected by the pressure detecting module is greater than the first given threshold, determine that bulge occurs for the battery pack.
Further, the main control module is also used to the pressure detected by any pressure detecting module and is greater than the
When two given thresholds, determine that catastrophe failure occurs for the battery pack.
Further, the battery pack bulge detection device further includes alarm module, is connect with main control module, in institute
Battery pack is stated bulge occurs or occurs to alarm when catastrophe failure.
Further, the battery pack bulge detection device further includes display module, is arranged to and the pressure detecting
Module connection, for showing the pressure of the pressure detecting module detection；And/or be connected to the main control module, for showing
The main control module battery pack occurs the judgement result of bulge.
Further, the battery pack bulge detection device further includes identical several with the quantity of several mould groups
A mould group control module, and each mould group is correspondingly arranged on the mould group control module, each mould group control module
Capture setting is configured as in the pressure detecting module pressure detected of corresponding mould group two sides.
Further, the mould group control module using in mould group from control plate CMC.
Further, the main control module is also used to be greater than according to detected pressure the pressure of the first given threshold
Power detection module and the corresponding relationship of the mould group control module determine that the position of bulge occurs for the battery pack.
Compared with the existing technology, battery pack bulge detection device described in the utility model has the advantage that practical
The novel battery bulge detection device can be according to the pressure between the battery pack mould group of real-time detection, and pressure is super between mould group
When determining battery pack bulge when crossing given threshold, battery pack bulge phenomenon is found in time, detection method is simple and convenient, testing result
Accurately and reliably, the safety that battery pack uses is effectively increased, the danger such as kindling caused by battery pack bulge occurs are avoided.
The another object of the utility model is to propose a kind of battery management system of vehicle, to the battery that bulge occurs
Packet processing in time, improves the safety of vehicle.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that a kind of battery management system of vehicle
System, is provided with above-mentioned battery pack bulge detection device.
Further the main control module is integrated in the battery management unit BCU of the battery management system, and institute
State main control module be also configured to battery pack occur bulge when, control reduce battery pack input or output power；And/or
When catastrophe failure occurs for battery pack, control battery pack is electrically operated under executing.
Compared with the existing technology, the battery management system of vehicle described in the utility model has the advantage that
(1) identical as the effect of above-mentioned battery pack bulge detection device；
(2) by carrying out drop power to the battery pack that bulge occurs or promptly descending electric treatment, vehicle safety is effectively increased
Property.
The another object of the utility model is to propose a kind of vehicle, is provided with above-mentioned battery management system.
Possessed advantage is identical compared with the existing technology with above-mentioned battery management system for the vehicle, no longer superfluous herein
It states.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The exemplary embodiment and its explanation of type are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is the structural schematic diagram of battery pack bulge detection device described in the utility model embodiment；
Fig. 2 is that battery pack bulge detection device described in the utility model embodiment applies exemplary structural schematic diagram；
Fig. 3 is to carry out battery pack bulge detection using battery pack bulge detection device described in the utility model embodiment
Testing process schematic diagram.
Description of symbols:
100, pressure detecting module 200, main control module
1-10, pressure sensor M1-M8, mould group
11, BCU 21-28, from control plate
Specific embodiment
It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the utility model
Sign can be combined with each other.
In addition, the adjacent mould group being previously mentioned in the embodiments of the present invention refers in setting battery pack in same layer
Same row mould group in adjacent mould group.
The utility model is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
Under normal conditions, battery pack includes several mould group (not shown in figure 1)s, battery pack bulge refer to one of them or
Bulge occurs for multiple mould groups.Fig. 1 is the structural schematic diagram of battery pack bulge detection device described in the utility model embodiment,
As shown in Figure 1, battery pack bulge detection device includes several pressure detecting modules 100, and the every two in several mould groups
The pressure detecting module 100 is correspondingly arranged between adjacent mould group, each pressure detecting module 100 is for detecting correspondence
Two adjacent mould groups between pressure；And there are adjacent mould group, mould of the other side close to the shell of battery pack for side
Group is also equipped with a pressure detecting module 100, main control module 200, for obtaining pressure in the side close to battery pack housing
The pressure detected of detection module 100, and the pressure detected by any pressure detecting module 100 is greater than the first given threshold
When, determine that bulge occurs for battery pack.
For example, pressure detecting module 100 can be pressure sensor, it is arranged between the adjacent mould group of every two, with
And for side there are adjacent mould group, the other side close to the shell of the battery pack mould group, in the side close to the shell
It is also equipped with a pressure sensor, wherein pressure sensor is used to detect the pressure or mould between corresponding two adjacent mould groups
Pressure of the group relative to shell.It should be noted that there are many arrangement modes of battery pack internal model group, described in the utility model
Mould group between refer to be distributed between the mould group of same layer first, can be examined according to the pressure sensor of each mould group two sides
Whether the pressure of survey determines whether mould group occurs bulge more than the first given threshold simultaneously.It simultaneously can be with pressure release sensor
The case where failure.Pressure sensing implement body is distributed and how to judge to occur position and the event of pressure release sensor of the mould group of bulge
The case where barrier, will be described in detail in Fig. 2, and details are not described herein again.
Preferably, main control module 200 is also used to the pressure detected by any pressure detecting module 100 and sets greater than second
When determining threshold value, determine that catastrophe failure occurs for battery pack.
Above-mentioned first given threshold refers to the pressure between the battery pack normal operating condition lower die group determined by repetition test
Force value, the second given threshold refer to if the pressure between battery pack mould group if it exceeds may occur if the given threshold hot
It is fried to wait danger.Wherein, the second given threshold is usually above the first given threshold.
Battery pack bulge detection device further includes several mould group control module (figures identical with the quantity of several mould groups
It is not shown in 1, is embodied in Fig. 2 by CMC), and each mould group is correspondingly arranged on a mould group control module, each mould group control
Module is configured as capture setting in the pressure detected of pressure detecting module 100 of corresponding mould group two sides.
Preferably, for side, there are adjacent mould group, mould group of the other side close to the shell of the battery pack, each mould groups
Control module is also configured as only acquiring the pressure detected of pressure detecting module 100 for being correspondingly arranged at corresponding mould group two sides
Power.
Mould group control module, which can be set, is independent control module, but in order to keep the integrated level of battery pack higher, body
Product is smaller, it is preferred that integrates mould group control module in the CMC (Cell Monitor Circuit: from control plate) of mould group.
Battery pack bulge detection device further includes display module (not shown), is connect with pressure detecting module 100, is used
In display it is following one or more: 1, the pressure detected of pressure detecting module 100；2, battery pack occurs for main control module 200
The judgement of catastrophe failure occurs for bulge as a result, to remind driver to repair processing to battery pack.
Battery pack bulge detection device further includes alarm module (not shown), is connect with main control module 200, is used for
Battery pack occurs bulge or occurs to alarm when catastrophe failure.
The utility model embodiment also provides a kind of battery management system of vehicle, is provided with above-mentioned battery pack bulge detection
Device.
Preferably, main control module 200 can be integrated in the battery management unit BCU of the battery management system, and
When main control module 200 is also configured to battery pack generation bulge, control reduces input or the output power of battery pack；And/or
When catastrophe failure occurs for battery pack, control battery pack is electrically operated under executing.That is, BCU is made to have function in this.
The utility model embodiment specific embodiment is illustrated with concrete application below.
Fig. 2 is that battery pack bulge detection device described in the utility model embodiment applies exemplary structural schematic diagram,
As shown in Fig. 2, pressure detecting module 100 uses pressure sensor 1-10, main so that battery is surrounded by 8 mould group M1-M8 compositions as an example
It controls module 200 and uses BCU 11 (Battery Control Unit, battery control unit are integrated in BMS), the control of mould group
Module is integrated in from control plate 21-28.
The both ends of mould group M1-M8 are separately connected pressure sensor 1-10, the pressure feelings between real-time monitoring mould group M1-M8
Condition issues BCU 11 from control plate 21-28 by collected information, and BCU 11 arranges the data acquired from control plate 21-28
Analysis, when the pressure of any one of pressure sensor 1-10 pressure sensor detection is more than the first given threshold, explanation
Bulge occurs for battery pack, and BMS (Battery Management System: battery management system) alarms or drops to battery pack
Power Processing, when the pressure of any one of pressure sensor 1-10 pressure sensor detection is more than the second given threshold,
Illustrate that catastrophe failure occurs for battery pack, BMS (Battery Management System: battery management system) does battery pack
Promptly lower electric treatment.
Using mould group M1-M8 as the mould group for belonging to same layer in battery pack in the utility model, mould group M1-M4 belongs to battery
The mould group of same row in packet, mould group M5-M8 belong to the mould group of same row in battery pack, mould group M1 and M2, M2 and M3, M3 and M4,
M5 and M6 belongs to mould group adjacent two-by-two in battery pack, and pressure sensor is arranged between the adjacent mould group of every two under normal conditions and is
Pressure between detectable depanning group whether superpressure, and judge accordingly battery pack whether bulge, for example, when pressure sensor 2 and pressing
When the pressure value detected of force snesor 3 is all larger than the first given threshold, illustrate that bulge occurs for mould group M2, if pressure sensor
2 more than the first given threshold, and pressure sensor 3 is less than the first given threshold, then can be determined that there is no drums by mould group M2
Bulge occurs for packet, mould group M1.But in order to more accurately judge pressure sensor 2 and pressure sensor 3 more than the first setting
When threshold value, whether mould group M1 also occurs bulge, in the not side adjacent with other mould groups mould group M1 in the utility model embodiment
It is also provided with pressure sensor 1.In this way, can the pressure value detected of pressure sensor 1 and 2 be all larger than the first given threshold
When just determine that bulge occurs for mould group M1, similarly, in mould group M5, mould group M6 and mould group M8, the side adjacent with other mould groups is not distinguished
Pressure sensor is set.
By acquiring pressure sensor 1-10 pressure value detected from control plate 21-28 in the application example of the utility model
And it is transmitted to BCU 11, directly pressure sensor 1-10 pressure value detected can also be directly transferred in practical application
BCU 11 is analyzed and is handled.In addition, from the corresponded manner of control plate 21-28 acquisition pressure sensor 1-10 pressure detected
Also it may be set according to actual conditions, for example, the pressure value from control 21 acquisition pressure sensors 1 of plate can be set and be transmitted to
BCU 11 acquires the pressure value collected of pressure sensor 5 and 6 from control plate 24.
Fig. 3 is to carry out battery pack bulge detection using battery pack bulge detection device described in the utility model embodiment
Testing process schematic diagram, as shown in figure 3, battery bulge detection process be divided into two parts, first part is detection process,
Second part is data analysis process.
Detection process: pressure sensor 1-10 is acquired and is sent to from control plate 21-28 by detected pressure, by CMC
BCU 11, example are connect from control plate 21 with pressure sensor 1 and pressure sensor 2, acquire pressure sensor 1 and pressure sensor 2
Pressure value detected, and pressure value collected is transmitted to BCU 11 and carries out data analysis.Data analysis process: BCU 11
The pressure monitored to pressure sensor does data analysis, is more than the first setting threshold when BCU 11 analyzes pressure value detected
When value, determine that bulge phenomenon occurs in corresponding mould group, BMS carries out drop Power Processing to battery pack, and by the inspection of pressure sensor
It surveys result and is uploaded to display, operator is prompted to repair processing to battery pack.If pressure value detected is more than second
Given threshold then determines that battery pack bulge phenomenon is serious, and BMS carries out emergency power off processing to battery pack, prevents battery because of bulge
Kindling, electric shock is caused even to be exploded.
Wherein, the judgement of the specific location of bulge occurs to battery pack as shown in 11 data analysis process of BCU in figure, sentences
Disconnected pressure sensor 1 and 2 whether simultaneously superpressure, that is, judge the pressure value detected of pressure sensor 1 and 2 whether and meanwhile more than the
One given threshold, if it is, illustrating that bulge occurs for mould group M1, if only one of pressure sensor 1 and 2 is detected
Pressure value is more than the first given threshold, then illustrates that pressure sensor 1 or 2 breaks down, need to overhaul pressure sensor.
Similarly, it can be determined that whether mould group M2-M8 occurs bulge and whether pressure sensor 3-10 breaks down.
Using display module and display module and pressure sensor 1-10 in example, being not shown and/or with BCU's 11
Specific connection type can be configured and be connected according to actual needs in practical application；Meanwhile using report is also not shown in example
Module and its specific connection type with BCU 11 are warned, equally can be configured and connect according to actual needs in practical application,
The utility model does not limit this.
In addition, applying example by this, it is known that the battery pack bulge detection device of the utility model can pass through pressure sensing
Device, CMC and BCU realize that these are all entity hardware, and the pressure that CMC and BCU etc. is realized in the utility model embodiment
Value obtains function, pressure value comparing function etc. and belongs to the routine data processing function that CMC and BCU etc. is able to achieve, thus this reality
The essential improvement to computer program is not related to new embodiment.
In addition, the utility model also proposes a kind of vehicle, it is provided with above-mentioned battery management system, specific embodiment is same
Above-mentioned battery pack bulge detection device and battery management system, details are not described herein again.
Through the above technical solutions, the utility model passes through the pressure between the adjacent mould group of real-time detection and the pressure between mould group
Battery pack bulge is determined when more than given threshold, can find battery pack bulge phenomenon in time, and detection method is simple and convenient, detection
As a result accurate and reliable, and by carrying out drop power to the battery pack that bulge occurs or promptly descending electric treatment, it effectively avoids that electricity occurs
The danger such as kindling caused by the packet bulge of pond.Meanwhile the utility model is according to pressure sensor, pair of mould group, mould group control module
It should be related to, judge that the specific location that bulge occurs for battery pack occurs, reduce searching bulge position during battery pack maintenance maintenance
The workload set, and reduce and blindly find the injury caused by battery of bulge position.In addition, the utility model is also provided with
Display module and alarm module can report the pressure state between mould group in time, effectively facilitate maintenance and operator checks
Battery status, and operator can be reminded to carry out emergency processing by alarm module, effectively increase the safety of vehicle.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (10)
1. a kind of battery pack bulge detection device, which is characterized in that the battery pack includes several mould groups, the battery pack drum
Package detection device includes:
Several pressure detecting modules, and an institute is correspondingly arranged between the adjacent mould group of every two in several described mould groups
Pressure detecting module is stated, and for side there are adjacent mould group, the other side is being leaned on close to the mould group of the shell of the battery pack
The side of the nearly shell is also equipped with the pressure detecting module, wherein the pressure detecting module is for detecting correspondence
Two adjacent mould groups between pressure relative to the shell of pressure or mould group；
Main control module, for obtaining the pressure detecting module pressure detected, and in any pressure detecting module institute
When the pressure detected is greater than the first given threshold, determine that bulge occurs for the battery pack.
2. battery pack bulge detection device according to claim 1, which is characterized in that the main control module is also used in office
When pressure detected by the one pressure detecting module is greater than the second given threshold, determine that serious event occurs for the battery pack
Barrier.
3. battery pack bulge detection device according to claim 2, which is characterized in that the battery pack bulge detection device
Further include alarm module, connect with main control module, for being reported when bulge occurs for the battery pack or catastrophe failure occurs
It is alert.
4. battery pack bulge detection device according to claim 1, which is characterized in that the battery pack bulge detection device
Further include display module, is arranged to
It is connect with the pressure detecting module, for showing the pressure of the pressure detecting module detection；And/or
It is connected to the main control module, the battery pack occurs for showing the main control module judgement result of bulge.
5. battery pack bulge detection device according to claim 1, which is characterized in that the battery pack bulge detection device
It further include several mould group control modules identical with the quantity of several mould groups, and each mould group is correspondingly arranged on one
The mould group control module, and each mould group control module is configured as capture setting in the pressure of the two sides of corresponding mould group
Detection module pressure detected.
6. battery pack bulge detection device according to claim 5, which is characterized in that the mould group control module is to correspond to
In mould group from control plate CMC.
7. battery pack bulge detection device according to claim 5, which is characterized in that the main control module is also used to basis
The pressure detecting module that detected pressure is greater than the first given threshold is corresponding with the position of the mould group control module
Relationship determines that the position of bulge occurs for the battery pack.
8. a kind of battery management system of vehicle, which is characterized in that be provided with battery described in any one of claim 1-7
Packet bulge detection device.
9. battery management system according to claim 8, which is characterized in that the main control module is integrated to the battery
In the battery management unit BCU of management system, and the main control module is also configured to
When bulge occurs for battery pack, control reduces input or the output power of battery pack；And/or
When catastrophe failure occurs for battery pack, control battery pack is electrically operated under executing.
10. a kind of vehicle, which is characterized in that be provided with battery management system described in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822240064.5U CN209071553U (en) | 2018-12-28 | 2018-12-28 | Battery pack bulge detection device, battery management system, vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822240064.5U CN209071553U (en) | 2018-12-28 | 2018-12-28 | Battery pack bulge detection device, battery management system, vehicle |
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| Publication Number | Publication Date |
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| CN209071553U true CN209071553U (en) | 2019-07-05 |
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ID=67102467
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| CN201822240064.5U Active CN209071553U (en) | 2018-12-28 | 2018-12-28 | Battery pack bulge detection device, battery management system, vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034358A (en) * | 2020-08-04 | 2020-12-04 | 上汽大众汽车有限公司 | Lithium battery thermal runaway detection system and method |
| WO2021036371A1 (en) * | 2019-08-29 | 2021-03-04 | 中兴通讯股份有限公司 | Battery bulge detection method and apparatus, battery, and computer-readable storage medium |
| CN112526365A (en) * | 2020-11-26 | 2021-03-19 | 武汉飞恩微电子有限公司 | Method, device, storage medium and apparatus for detecting battery state |
| CN115810815A (en) * | 2023-02-06 | 2023-03-17 | 江苏南极星新能源技术股份有限公司 | Processing method and system suitable for battery protection |
| CN117977033A (en) * | 2024-03-29 | 2024-05-03 | 宁德时代新能源科技股份有限公司 | Battery box, battery management method and electricity utilization device |
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2018
- 2018-12-28 CN CN201822240064.5U patent/CN209071553U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036371A1 (en) * | 2019-08-29 | 2021-03-04 | 中兴通讯股份有限公司 | Battery bulge detection method and apparatus, battery, and computer-readable storage medium |
| CN112034358A (en) * | 2020-08-04 | 2020-12-04 | 上汽大众汽车有限公司 | Lithium battery thermal runaway detection system and method |
| CN112034358B (en) * | 2020-08-04 | 2023-04-07 | 上汽大众汽车有限公司 | Lithium battery thermal runaway detection system and method |
| CN112526365A (en) * | 2020-11-26 | 2021-03-19 | 武汉飞恩微电子有限公司 | Method, device, storage medium and apparatus for detecting battery state |
| CN115810815A (en) * | 2023-02-06 | 2023-03-17 | 江苏南极星新能源技术股份有限公司 | Processing method and system suitable for battery protection |
| CN117977033A (en) * | 2024-03-29 | 2024-05-03 | 宁德时代新能源科技股份有限公司 | Battery box, battery management method and electricity utilization device |
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