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TW202002385A - Battery recovery device and method thereof - Google Patents

Battery recovery device and method thereof Download PDF

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TW202002385A
TW202002385A TW107119737A TW107119737A TW202002385A TW 202002385 A TW202002385 A TW 202002385A TW 107119737 A TW107119737 A TW 107119737A TW 107119737 A TW107119737 A TW 107119737A TW 202002385 A TW202002385 A TW 202002385A
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frequency
battery
specific gravity
sulfuric acid
item
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TW107119737A
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Chinese (zh)
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TWI679793B (en
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林鴻裕
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薩摩亞商電子設計天地貿易有限公司
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Priority to TW107119737A priority Critical patent/TWI679793B/en
Priority to CN201821131904.8U priority patent/CN208400989U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The invention provides a battery recovery device, includes a frequency signal generator and a charger/discharger. The frequency signal generator is configured to sequentially generate a plurality of variable frequency control signals, wherein frequencies of the variable frequency control signals respectively belong to a plurality of frequency regions. The charger/discharger is configured to couple electrodes of the battery, for charging/discharging the battery according to the frequencies of the variable frequency control signals.

Description

電池再生裝置及其方法 Battery regeneration device and method

本發明提供一電池再生裝置及其方法,特別為藉由對電池進行變頻充放電之電池再生裝置及其方法。 The invention provides a battery regeneration device and a method thereof, in particular a battery regeneration device and a method thereof by performing frequency conversion charging and discharging on a battery.

鉛酸電池之使用壽命,常受限於其中電極所覆蓋之硫酸鉛。鉛酸電池內氧化還原反應(reduction-oxidation reaction),須直接與電極之鉛或氧化鉛進行反應。然而,多次充放電後,電極覆蓋之硫酸鉛會逐漸增多。當電極覆蓋之硫酸鉛越多以及其結晶結構逐漸增大時,會阻礙電極與硫酸液間的氧化還原反應,充放電效率會嚴重下降。參照圖1之上方,其顯示之硫酸鉛之結晶結構介於2~5μm,此時之鉛酸電池若沒做定期之完整充放電,就會出現圖1下方之結晶結構大於10μm之狀況。然而,此定期之完整充放電,通常因長期置於車內(僅使用部分之蓄電量)、或其他之原因,而未能徹底執行。當發現鉛酸電池蓄電能力不足時,如何清除硫酸鉛遂成為難題。 The service life of lead-acid batteries is often limited by the lead sulfate covered by the electrodes. The reduction-oxidation reaction in the lead-acid battery must directly react with the lead or lead oxide of the electrode. However, after repeated charging and discharging, the lead sulfate covered by the electrode will gradually increase. When more lead sulfate is covered by the electrode and its crystal structure gradually increases, it will hinder the redox reaction between the electrode and the sulfuric acid solution, and the charge and discharge efficiency will be seriously reduced. Referring to the upper part of FIG. 1, the crystal structure of lead sulfate is between 2 and 5 μm. If the lead-acid battery is not fully charged and discharged on a regular basis, the crystal structure at the bottom of FIG. 1 will be greater than 10 μm. However, this regular full charge and discharge is usually not carried out due to long-term storage in the vehicle (only part of the stored energy is used), or other reasons. When it is found that the storage capacity of lead-acid batteries is insufficient, how to remove lead sulfate becomes a problem.

傳統清除硫酸鉛之方式,又稱為鉛酸電池再生技術(battery recovery technology),為移除鉛酸電池(待再生電池)內之舊硫酸液,並加入 新的硫酸液。此方式雖可恢復氧化還原反應所需的硫酸液比重,卻不能減少電極上覆蓋之硫酸鉛。所以,當加入新的硫酸液,此種方法仍未能解決硫酸鉛覆蓋電極之困擾,替換新的硫酸液後,鉛酸電池僅能維持數個月的儲電壽命。 The traditional method of removing lead sulfate, also known as battery recovery technology, is to remove the old sulfuric acid liquid in the lead-acid battery (battery to be regenerated) and add new sulfuric acid liquid. Although this method can restore the specific gravity of the sulfuric acid solution required for the redox reaction, it cannot reduce the lead sulfate covered on the electrode. Therefore, when a new sulfuric acid solution is added, this method still cannot solve the problem of covering the electrode with lead sulfate. After replacing the new sulfuric acid solution, the lead-acid battery can only maintain the storage life of several months.

另一傳統之鉛酸電池再生方式,為藉由一充電機對鉛酸電池進行大電流強制充電。此大電流強制充電,雖可消除覆蓋電極之一部分硫酸鉛,但因充電高溫造成電極氧化等缺點,使得鉛酸電池之損傷非常大,且電池再生效果有限。 Another traditional lead-acid battery regeneration method is to charge the lead-acid battery with a large current by a charger. This high current forced charging can eliminate part of the lead sulfate covering the electrode, but the electrode oxidation and other shortcomings caused by the high temperature of the charge make the damage of the lead-acid battery very large and the battery regeneration effect is limited.

又一傳統之鉛酸電池再生方式,為使用藥劑,將覆蓋電極之硫酸鉛溶解倒掉後,再補充新的硫酸液。此方法雖解決硫酸鉛之困擾,再生過程中反而造成電極變薄。此外,替換硫酸液後,鉛酸電池僅能維持數個月的儲電壽命,實不符合市場成本需求。 In another traditional lead-acid battery regeneration method, in order to use chemicals, the lead sulfate covering the electrode is dissolved and poured, and then a new sulfuric acid solution is added. Although this method solves the problem of lead sulfate, the electrode becomes thinner during the regeneration process. In addition, after replacing the sulfuric acid liquid, the lead-acid battery can only maintain the storage life of several months, which does not meet the market cost requirements.

本發明提供一種電池再生裝置,其包含一頻率產生器以及充放電器。頻率產生器,用以依序產生複數個變頻控制訊號,變頻控制訊號之頻率分別屬於複數個頻率範圍內。充放電器,用以電性連接於電池之電極,充放電器根據變頻控制訊號之頻率,對電池進行充放電。 The invention provides a battery regeneration device including a frequency generator and a charge-discharge device. The frequency generator is used to sequentially generate a plurality of frequency conversion control signals, and the frequencies of the frequency conversion control signals belong to the plurality of frequency ranges, respectively. The charge and discharge device is used to be electrically connected to the electrode of the battery. The charge and discharge device charges and discharges the battery according to the frequency of the frequency conversion control signal.

一實施例中,各頻率範圍其中包含一主頻率,此主頻率位於對應之頻率範圍內。各頻率範圍之主頻率間,具有一倍數關係。 In one embodiment, each frequency range includes a main frequency, and the main frequency is within the corresponding frequency range. There is a multiple relationship between the main frequencies in each frequency range.

一實施例中,各變頻控制訊號,為於對應此頻率範圍內之線性掃頻訊號。 In one embodiment, each frequency conversion control signal is a linear frequency sweep signal corresponding to this frequency range.

一實施例中,電池為一鉛酸電池,其包含:第一電極、一第二電極、以及電性耦接於第一、二電極間之硫酸液。於充放電前,硫酸液具有一還原前比重,還原前比重低於一初始比重。 In one embodiment, the battery is a lead-acid battery, which includes: a first electrode, a second electrode, and a sulfuric acid solution electrically coupled between the first and second electrodes. Before charging and discharging, the sulfuric acid liquid has a specific gravity before reduction, and the specific gravity before reduction is lower than an initial specific gravity.

一實施例中,當電池之硫酸液面過低時,加入硫酸液之補充液為純水。 In one embodiment, when the sulfuric acid liquid level of the battery is too low, the supplementary liquid added with the sulfuric acid liquid is pure water.

一實施例中,硫酸液之初始比重為1.3。一實施例中,硫酸液於充放電後之比重,相當於初始比重。 In one embodiment, the initial specific gravity of the sulfuric acid liquid is 1.3. In one embodiment, the specific gravity of the sulfuric acid solution after charging and discharging is equivalent to the initial specific gravity.

一實施例中,其中於充放電後,覆蓋於電極之硫酸鉛,具有小於5μm之結晶結構。 In one embodiment, the lead sulfate covering the electrode after charging and discharging has a crystal structure of less than 5 μm.

根據一觀點,本發明又提供一種電池再生方法。電池再生方法包含:提供一待還原之電池,其包含:第一電極、一第二電極、以及電性耦接於第一、二電極間之硫酸液,其中硫酸液具有一還原前比重,還原前比重低於一初始比重;產生複數個變頻控制訊號之頻率,其中複數個變頻頻率分別屬於複數個頻率範圍內,頻率範圍中包含一第一頻率範圍與一第二頻率範圍;以及以第一、二頻率範圍之變頻控制訊號,交替對電池進行充放電,提升硫酸液之比重以相當於初始比重。 According to one aspect, the present invention provides a battery regeneration method. The battery regeneration method includes: providing a battery to be reduced, which includes: a first electrode, a second electrode, and a sulfuric acid liquid electrically coupled between the first and second electrodes, wherein the sulfuric acid liquid has a specific gravity before reduction, reducing The former specific gravity is lower than an initial specific gravity; the frequency of generating a plurality of frequency conversion control signals, wherein the plurality of frequency conversion frequencies belong to the plurality of frequency ranges, the frequency range includes a first frequency range and a second frequency range; and the first 2. The frequency conversion control signal in the second frequency range alternately charges and discharges the battery to increase the specific gravity of the sulfuric acid solution to equal the initial specific gravity.

100、200‧‧‧電池再生裝置 100、200‧‧‧Battery regeneration device

10‧‧‧頻率產生器 10‧‧‧ frequency generator

20‧‧‧充放電器 20‧‧‧ Charger and Discharger

Bat‧‧‧電池 Bat‧‧‧Battery

E1、E2‧‧‧電極 E1, E2‧‧‧electrode

R1、R2‧‧‧頻率範圍 R1, R2‧‧‧‧Frequency range

Fm1、Fm2‧‧‧主頻率 Fm1, Fm2‧‧‧Main frequency

S1、S2、S3‧‧‧步驟 S1, S2, S3 ‧‧‧ steps

Sv‧‧‧變頻控制訊號 Sv‧‧‧ Frequency control signal

圖1顯示鉛酸電池未完整充放電所形成之硫酸鉛結晶結構。 Figure 1 shows the lead sulfate crystal structure formed by incomplete charge and discharge of lead-acid batteries.

圖2顯示根據本發明一實施例之電池再生裝置。 FIG. 2 shows a battery regeneration device according to an embodiment of the invention.

圖3顯示根據本發明一實施例之多個頻率範圍以及其中之主頻率。 FIG. 3 shows a plurality of frequency ranges according to an embodiment of the present invention and main frequencies therein.

圖4顯示根據本發明一實施例之變頻控制訊號之頻率切換方式。 FIG. 4 shows the frequency switching method of the frequency conversion control signal according to an embodiment of the invention.

圖5顯示根據本發明一實施例之電池再生裝置。 FIG. 5 shows a battery regeneration device according to an embodiment of the invention.

圖6顯示根據本發明一實施例之電池再生方法之流程圖。 6 shows a flowchart of a battery regeneration method according to an embodiment of the invention.

本發明中的圖式均屬示意,主要意在表示各裝置以及各元件之間之功能作用關係,至於形狀與尺寸則並未依照比例繪製。 The drawings in the present invention are schematic, mainly intended to show the functional relationship between the devices and the components, and the shapes and sizes are not drawn to scale.

參照圖2,顯示本發明所提供一種電池再生裝置100,可高效率且安全地還原電池Bat。電池再生裝置100包含一頻率產生器10以及充放電器20。頻率產生器10,用以依序產生複數個變頻控制訊號Sv,變頻控制訊號Sv之頻率分別屬於複數個頻率範圍內(例如,圖3所示之頻率範圍R1、R2)。充放電器20,用以電性連接於電池之電極E1、E2,充放電器20根據變頻控制訊號Sv之頻率,對電池Bat進行充放電。 Referring to FIG. 2, it shows a battery regeneration device 100 provided by the present invention, which can efficiently and safely restore the battery Bat. The battery regeneration device 100 includes a frequency generator 10 and a charge and discharge device 20. The frequency generator 10 is used to sequentially generate a plurality of frequency conversion control signals Sv. The frequency of the frequency conversion control signals Sv belongs to a plurality of frequency ranges (for example, the frequency ranges R1 and R2 shown in FIG. 3). The charger/discharger 20 is electrically connected to the electrodes E1 and E2 of the battery. The charger/discharger 20 charges and discharges the battery Bat according to the frequency of the frequency conversion control signal Sv.

根據本發明,電池Bat在充放電時,會產生電極E1、E2間之相對運動。例如,充電時,電極E1、E2間相靠近;放電時,電極E1、E2間相遠離。加上充放電之頻率控制,可使電極E1、E2出現振動。本發明藉由此種振動,可使電極E1、E2上覆蓋之硫酸鉛,加速與硫酸液之氧化還原反應,也可使部分的結晶結構振離開電極E1、E2,直接與硫酸液產生還原反應,提升硫酸液之比重。此外,因電極E1、E2與其上覆蓋的硫酸鉛,皆有其諧振頻率(Resonant frequency)。根據結構之動態特性,同一諧振頻率下結構之振動模態(Vibration mode)為固定,即同一諧振頻率下結構易破壞點是相同的;但不同諧振頻率下結構易破壞點是不同的。如此,以不同的頻率 範圍之變頻控制訊號,對電池進行充放電,既可避免因單一諧振頻率之振動,造成對電池的局部結構破壞。多個頻率範圍中諧振頻率之振動,分別具有不同位置之最大振幅點,可避免振動能量過度集中於部分局部結構,不會造成不必要之結構損壞。此外,同一諧振頻率下覆蓋的硫酸鉛的結晶結構所能降低之尺寸為相似;例如頻率較低時,可針對小尺寸的硫酸鉛結晶結構,而頻率較高時,可針對更小尺寸硫酸鉛的結晶結構。如此可知,長時間在同一諧振頻率下之振動,會重複對同一位置之結構強度造成傷害,且所能降低硫酸鉛的結晶結構也受限於特定尺寸範圍。因此,本發明特別提出;多個頻率範圍中不同諧振頻率之充放電,又具有降低不同尺寸之硫酸鉛結晶結構之效果。如此一來,本發明具有大幅降低電池結構破壞風險且高效率之電池再生效果。 According to the present invention, when the battery Bat is charged and discharged, relative movement between the electrodes E1 and E2 occurs. For example, during charging, the electrodes E1 and E2 are close to each other; during discharging, the electrodes E1 and E2 are close to each other. Coupled with the frequency control of charging and discharging, the electrodes E1 and E2 can vibrate. By vibrating in this invention, the lead sulfate covered on the electrodes E1 and E2 can accelerate the oxidation-reduction reaction with sulfuric acid solution, and can also cause part of the crystal structure to vibrate away from the electrodes E1 and E2 to directly produce a reduction reaction with the sulfuric acid solution To increase the proportion of sulfuric acid solution. In addition, the electrodes E1 and E2 and the lead sulfate covered on them have their resonant frequencies. According to the dynamic characteristics of the structure, the vibration mode (Vibration mode) of the structure is fixed at the same resonance frequency, that is, the fragile point of the structure is the same at the same resonance frequency; but the fragile point of the structure is different at different resonance frequencies. In this way, charging and discharging the battery with frequency conversion control signals of different frequency ranges can avoid the vibration of a single resonance frequency and cause damage to the local structure of the battery. Vibrations at resonant frequencies in multiple frequency ranges have maximum amplitude points at different positions, which can avoid excessive concentration of vibration energy in some local structures and will not cause unnecessary structural damage. In addition, the size of the crystal structure of lead sulfate covered at the same resonance frequency can be reduced to a similar size; for example, when the frequency is lower, it can target the small-size lead sulfate crystal structure, and when the frequency is higher, it can target the smaller size lead sulfate Crystalline structure. Thus, it can be seen that the vibration at the same resonance frequency for a long time will repeatedly cause damage to the structural strength at the same position, and the crystal structure that can reduce lead sulfate is also limited to a specific size range. Therefore, the present invention specifically proposes that the charge and discharge of different resonance frequencies in multiple frequency ranges have the effect of reducing the lead sulfate crystal structure of different sizes. As a result, the present invention has a highly efficient battery regeneration effect that greatly reduces the risk of damage to the battery structure.

電池生產出廠時,雖根據同一設計與製程,仍會有些微差異,故其諧振頻率會有差異。前述之充放電頻率若僅根據單一諧振頻率,可能因電池結構特性之差異而具有稍微不同之諧振頻率,而導致電池再生效果不佳。因此本發明提出藉由於各頻率範圍內以變頻充放電之方式,可包含頻率範圍內中各可能之諧振頻率,以確實達到還原效果。 When the battery is manufactured and shipped from the factory, there will be some slight differences according to the same design and manufacturing process, so its resonance frequency will be different. If the aforementioned charge-discharge frequency is based only on a single resonance frequency, it may have a slightly different resonance frequency due to differences in battery structural characteristics, resulting in poor battery regeneration. Therefore, the present invention proposes that, by means of frequency conversion charging and discharging in each frequency range, each possible resonant frequency in the frequency range can be included to ensure the reduction effect.

又參照圖3,顯示一實施例中,各頻率範圍R1、R2其中包含一主頻率,此主頻率位於對應之頻率範圍內,可對應於各對應頻率範圍內之諧振頻率。或者,從另一觀點,各頻率範圍R1、R2可視為以諧振頻率為主頻率,並以諧振頻率之容許誤差為範圍之頻率範圍。如此,各頻率範圍為彼此獨立,例如圖3中頻率範圍R1、R2,於頻域上彼此間不重疊。 Referring again to FIG. 3, it is shown that in one embodiment, each frequency range R1, R2 includes a main frequency, which is located in the corresponding frequency range, and can correspond to the resonance frequency in each corresponding frequency range. Or, from another point of view, each of the frequency ranges R1 and R2 can be regarded as a frequency range with the resonance frequency as the main frequency and the tolerance of the resonance frequency as the range. In this way, the frequency ranges are independent of each other. For example, the frequency ranges R1 and R2 in FIG. 3 do not overlap with each other in the frequency domain.

一實施例中,根據各頻率範圍之主頻率間,具有一倍數關 係。例如,頻率範圍R1之主頻率為7.8kHz,而頻率範圍R2之主頻率為7.8kHz之兩倍,即頻率範圍R2之主頻率為15.6kHz。 In one embodiment, there is a multiple relationship between the main frequencies in each frequency range. For example, the main frequency of the frequency range R1 is 7.8 kHz, and the main frequency of the frequency range R2 is twice 7.8 kHz, that is, the main frequency of the frequency range R2 is 15.6 kHz.

前述之頻率範圍,其數量不限於圖式中兩組。若有需要,例如針對更小尺寸之結晶結構,也可設定更多個頻率範圍,以達到另一較佳之電池再生結果。例如,四個頻率範圍,以達到另一還原效果。而其對應之主頻率分別為7.8kHz、15.6kHz、23.4kHz、以及31.2kHz。 The aforementioned frequency range is not limited to two groups in the diagram. If necessary, for example, for a crystal structure with a smaller size, more frequency ranges can be set to achieve another better battery regeneration result. For example, four frequency ranges to achieve another reduction effect. The corresponding main frequencies are 7.8kHz, 15.6kHz, 23.4kHz, and 31.2kHz.

一實施例中,可根據不同之頻率範圍,交替對電池進行充放電。例如,先從較低頻率範圍之變頻方式,再替換為較高頻率範圍之變頻方式,使覆蓋電極最外層之硫酸鉛開始,逐次降低其結晶結構之尺寸(例如,從塊狀硫酸鉛結晶、轉換為片狀硫酸鉛結晶、再轉換為粉狀硫酸鉛結晶)。之後,又一次從較低頻率範圍之變頻方式,再替換為較高頻率範圍之變頻方式,使較內側(較靠近電極)之硫酸鉛逐次降低其結晶結構之尺寸。如此重複交替,以清除電極上之硫酸鉛。 In one embodiment, the battery can be alternately charged and discharged according to different frequency ranges. For example, starting with the frequency conversion method in the lower frequency range and then replacing it with a frequency conversion method in the higher frequency range, the lead sulfate covering the outermost layer of the electrode is started, and the size of its crystal structure is gradually reduced (for example, from bulk lead sulfate crystals, Converted into flaky lead sulfate crystals, and then into powdered lead sulfate crystals). After that, the frequency conversion method in the lower frequency range was replaced again with the frequency conversion method in the higher frequency range, so that the lead sulfate on the inner side (closer to the electrode) gradually reduced the size of its crystal structure. Repeat this alternately to remove the lead sulfate on the electrode.

一實施例中,變頻控制訊號Sv,可為一線性掃頻訊號,其頻率隨時間變化,其於對應頻率範圍內隨時間而線性改變頻率之訊號。例如,隨時間而增加其頻率、或者隨時間而降低其頻率。或者如圖4,其中變頻控制訊號1,隨時間而先降低其頻率、後增加其頻率;或者如變頻控制訊號2隨時間而先增加其頻率、後降低其頻率。本發明之變頻控制訊號Sv也可不受限於線性掃頻訊號,例如變頻控制訊號Sv可於對應頻率範圍內數個固定頻率間切換。使用者可依據需要,而決定變頻之方式。 In one embodiment, the frequency conversion control signal Sv may be a linear sweep signal whose frequency changes with time, and which changes the frequency linearly with time within the corresponding frequency range. For example, its frequency increases with time, or its frequency decreases with time. Or as shown in Fig. 4, in which the frequency conversion control signal 1 decreases its frequency first and then increases its frequency; or as the frequency conversion control signal 2 increases its frequency first and then decreases its frequency. The frequency conversion control signal Sv of the present invention may not be limited to a linear sweep signal. For example, the frequency conversion control signal Sv may be switched between several fixed frequencies within the corresponding frequency range. Users can decide the frequency conversion method according to their needs.

參照圖2,電池Bat為一鉛酸電池,其包含:第一電極E1、一第二電極E2(電極主成分為鉛與氧化鉛)、以及電性耦接於第一、二電極E1、 E2間之硫酸液。如圖所示,硫酸鉛包覆於電極E1、E2上,影響電池Bat之蓄電效能。於還原之充放電前,硫酸液具有一還原前比重,多次充放電造成硫酸鉛包覆於電極E1、E2上,故還原前比重低於一初始比重。一實施例中,硫酸液之初始比重為1.3。 2, the battery Bat is a lead-acid battery, which includes: a first electrode E1, a second electrode E2 (the main components of the electrode are lead and lead oxide), and electrically coupled to the first and second electrodes E1, E2 Between the sulfuric acid liquid. As shown in the figure, lead sulfate is coated on the electrodes E1 and E2, which affects the storage efficiency of the battery Bat. Before the reduction and charging and discharging, the sulfuric acid solution has a specific gravity before reduction, and multiple charging and discharging causes lead sulfate to coat the electrodes E1 and E2, so the specific gravity before reduction is lower than an initial specific gravity. In one embodiment, the initial specific gravity of the sulfuric acid liquid is 1.3.

雖圖2中電池以鉛酸電池為例,使用者仍可依據本發明,而還原其他種類電池。其可還原之電池條件為:可藉由複數個頻率範圍之變頻訊號,降低電池之電極與蓄電體之間因反應而產生的累積物,且此累積物為阻礙蓄電效能的關鍵之一。凡屬於此類電池,皆可應用本發明之電池再生技術,達到非破壞性提升電池效能之目的。 Although the battery in FIG. 2 takes a lead-acid battery as an example, the user can still restore other types of batteries according to the present invention. The regenerable battery condition is that it can reduce the accumulation caused by the reaction between the electrode of the battery and the energy storage body through the frequency conversion signals of a plurality of frequency ranges, and this accumulation is one of the keys to hinder the energy storage performance. Any battery of this type can be applied to the battery regeneration technology of the present invention to achieve the purpose of non-destructively improving battery performance.

待還原之鉛酸電池,電池之硫酸有時出現液面過低之問題,而液面過低會影響蓄電效能。根據本發明,當電池之硫酸液面過低時,加入硫酸液之補充液為純水,非如一些習知技術中以新的硫酸液替換舊的硫酸液。如此,本發明之操作過程中,不會產生新的汙染。純水加入硫酸液後,只須藉由變頻方式,就可恢復硫酸液之比重到初始比重;即硫酸液於還原充放電後之比重,相當於初始比重。如此,可知本發明為一穩定且環保之技術。 In lead-acid batteries to be reduced, the sulfuric acid of the batteries sometimes has a problem of too low a liquid level, and too low a liquid level will affect the storage performance. According to the present invention, when the sulfuric acid liquid level of the battery is too low, the supplementary liquid added to the sulfuric acid liquid is pure water, as is the case with some conventional technologies in which the old sulfuric acid liquid is replaced with a new sulfuric acid liquid. In this way, no new pollution will be generated during the operation of the present invention. After adding pure water to the sulfuric acid liquid, the specific gravity of the sulfuric acid liquid can be restored to the initial specific gravity only by frequency conversion; that is, the specific gravity of the sulfuric acid liquid after reducing charge and discharge is equivalent to the initial specific gravity. Thus, it can be seen that the present invention is a stable and environmentally friendly technology.

一實施例中,其中於充放電後,覆蓋於電極E1、E2之硫酸鉛,具有小於5μm之結晶結構。小於5μm結晶結構之硫酸鉛,易與硫酸液產生還原反應,產生逐漸減少覆蓋於電極E1、E2之硫酸鉛之效果。 In an embodiment, after charging and discharging, the lead sulfate covering the electrodes E1 and E2 has a crystal structure of less than 5 μm. Lead sulfate with a crystal structure of less than 5 μm is likely to cause a reduction reaction with sulfuric acid solution, which gradually reduces the effect of lead sulfate covering electrodes E1 and E2.

本發明所提供之電池再生裝置,其所提供之還原時間很短,例如一般常用電瓶,一天之內就可還原完成。 The battery regeneration device provided by the present invention has a short restoration time. For example, a commonly used battery can be restored within one day.

一實施例中,充放電器20可包含一功率放大器與一放電器, 分別用於電池Bat之充電與放電。參照圖5顯示一電池再生裝置200之實施例,其中除頻率產生器10與充放電器20外,電池再生裝置200也包含一微處理器與一電源供應器。電源供應器連接功率放大器,微處理器控制頻率產生器10以產生充電所需之變頻頻率,以控制對電池Bat之變頻充電。微處理器又控制頻率產生器10以產生放電所需之變頻頻率,以控制對電池Bat之變頻放電。功率放大器與放電器,皆電性連接於電池之電極E1、E2,對電池Bat進行充放電。 In one embodiment, the charge and discharger 20 may include a power amplifier and a discharger, which are used to charge and discharge the battery Bat, respectively. 5 shows an embodiment of a battery regeneration device 200. In addition to the frequency generator 10 and the charge and discharge device 20, the battery regeneration device 200 also includes a microprocessor and a power supply. The power supply is connected to the power amplifier, and the microprocessor controls the frequency generator 10 to generate the frequency conversion frequency required for charging to control the frequency conversion charging of the battery Bat. The microprocessor in turn controls the frequency generator 10 to generate the frequency conversion frequency required for discharge to control the frequency conversion discharge of the battery Bat. The power amplifier and the discharger are electrically connected to the electrodes E1 and E2 of the battery to charge and discharge the battery Bat.

參照圖6,顯示根據一觀點,本發明又提供一種電池再生方法。電池再生方法包含:提供一待再生之電池,其包含:第一電極、一第二電極、以及電性耦接於第一、二電極間之硫酸液,其中硫酸液具有一還原前比重,還原前比重低於一初始比重(S1);產生複數個變頻控制訊號之頻率,其中複數個變頻頻率分別屬於複數個頻率範圍內,頻率範圍中包含一第一頻率範圍與一第二頻率範圍(S2);以及以第一、二頻率範圍之變頻控制訊號,交替對電池進行充放電,提升硫酸液之比重以相當於初始比重(S3)。此電池再生方法所述之相關技術內容,請參照前述相關實施例以及其原理之說明。 Referring to FIG. 6, it is shown that according to an aspect, the present invention provides a battery regeneration method. The battery regeneration method includes: providing a battery to be regenerated, which includes: a first electrode, a second electrode, and a sulfuric acid solution electrically coupled between the first and second electrodes, wherein the sulfuric acid solution has a specific gravity before reduction and reduction The former specific gravity is lower than an initial specific gravity (S1); the frequency of generating a plurality of frequency conversion control signals, wherein the plurality of frequency conversion frequencies belong to the plurality of frequency ranges, and the frequency range includes a first frequency range and a second frequency range (S2) ); and the frequency conversion control signals in the first and second frequency ranges are used to alternately charge and discharge the battery to increase the specific gravity of the sulfuric acid solution to equal the initial specific gravity (S3). For the related technical content described in this battery regeneration method, please refer to the foregoing related embodiments and the description of its principle.

一實施例中,前述之頻率範圍,可不受限於兩個頻率範圍,若有需要,可增加更多個頻率範圍,例如三個頻率範圍、或四個頻率範圍。 In an embodiment, the aforementioned frequency range may not be limited to two frequency ranges, and if necessary, more frequency ranges may be added, such as three frequency ranges or four frequency ranges.

一實施例中,電池再生方法又可包含:當電池之該硫酸液面過低時,加入硫酸液之補充液為純水。 In one embodiment, the battery regeneration method may further include: when the sulfuric acid liquid level of the battery is too low, the supplementary liquid added with the sulfuric acid liquid is pure water.

100‧‧‧電池再生裝置 100‧‧‧Battery regeneration device

10‧‧‧頻率產生器 10‧‧‧ frequency generator

20‧‧‧充放電器 20‧‧‧ Charger and Discharger

Bat‧‧‧電池 Bat‧‧‧Battery

E1、E2‧‧‧電極 E1, E2‧‧‧electrode

Sv‧‧‧變頻控制訊號 Sv‧‧‧ Frequency control signal

Claims (11)

一種電池再生裝置,包含:一頻率產生器,用以依序產生複數個變頻控制訊號,該些變頻控制訊號之頻率分別屬於複數個不同之頻率範圍內;以及一充放電器,用以電性連接於該電池之電極,該充放電器以該些變頻控制訊號之頻率,對該電池進行充放電。 A battery regeneration device includes: a frequency generator for sequentially generating a plurality of frequency conversion control signals, the frequencies of the frequency conversion control signals belong to a plurality of different frequency ranges; and a charge and discharge device for electrical Connected to the electrode of the battery, the charge and discharge device charges and discharges the battery at the frequency of the frequency conversion control signals. 如申請專利範圍第1項所述之電池再生裝置,其中各該頻率範圍其中包含一主頻率,該主頻率位於對應之該頻率範圍內,其中不同該頻率範圍之各該主頻率間具有一倍數關係。 The battery regeneration device as described in item 1 of the patent application range, wherein each of the frequency ranges includes a main frequency, and the main frequency is within the corresponding frequency range, wherein each main frequency different from the frequency range has a multiple relationship. 如申請專利範圍第1項所述之電池再生裝置,其中各該變頻控制訊號,為於對應該頻率範圍內之線性掃頻訊號。 The battery regeneration device as described in item 1 of the patent application, wherein each of the frequency conversion control signals is a linear frequency sweep signal within a corresponding frequency range. 如申請專利範圍第1項所述之電池再生裝置,其中該電池為一鉛酸電池,該鉛酸電池包含:第一電極、一第二電極、以及電性耦接於該第一、二電極間之硫酸液,其中於該充放電前,該硫酸液具有一還原前比重,該還原前比重低於一初始比重。 The battery regeneration device as described in item 1 of the patent application scope, wherein the battery is a lead-acid battery, the lead-acid battery includes: a first electrode, a second electrode, and electrically coupled to the first and second electrodes Between the sulfuric acid liquid, before the charging and discharging, the sulfuric acid liquid has a specific gravity before reduction, and the specific gravity before reduction is lower than an initial specific gravity. 如申請專利範圍第4項所述之電池再生裝置,其中當該鉛酸電池之該硫酸液面過低時,加入該硫酸液之補充液為純水。 The battery regeneration device as described in item 4 of the patent application scope, wherein when the sulfuric acid liquid level of the lead-acid battery is too low, the supplementary liquid added to the sulfuric acid liquid is pure water. 如申請專利範圍第4項所述之電池再生裝置,其中該初始比重為1.3。 The battery regeneration device as described in item 4 of the patent application scope, wherein the initial specific gravity is 1.3. 如申請專利範圍第6項所述之電池再生裝置,其中於該充放電後,該硫酸液之比重,相當於該初始比重。 The battery regeneration device as described in item 6 of the patent application scope, wherein after the charge and discharge, the specific gravity of the sulfuric acid solution is equivalent to the initial specific gravity. 如申請專利範圍第4項所述之電池再生裝置,其中於該充放電後,覆蓋於該電池之該些電極之硫酸鉛,具有小於5μm之結晶結構。 The battery regeneration device as described in item 4 of the patent application scope, wherein after the charge and discharge, the lead sulfate covering the electrodes of the battery has a crystal structure of less than 5 μm. 一種電池再生方法,包含:提供一待還原之電池,包含:第一電極、一第二電極、以及電性耦接 於該第一、二電極間之硫酸液,其中該硫酸液具有一還原前比重,該還原前比重低於一初始比重;產生複數個變頻控制訊號之頻率,其中該些變頻頻率分別屬於複數個不同之頻率範圍內,該些頻率範圍包含一第一頻率範圍與一第二頻率範圍;以及以該第一、二頻率範圍之該些變頻控制訊號,交替對該電池進行充放電,提升該硫酸液之比重以相當於該初始比重。 A battery regeneration method includes: providing a battery to be reduced, including: a first electrode, a second electrode, and a sulfuric acid solution electrically coupled between the first and second electrodes, wherein the sulfuric acid solution has a before reduction Specific gravity, the specific gravity before reduction is lower than an initial specific gravity; the frequency of generating a plurality of frequency conversion control signals, wherein the frequency conversion frequencies belong to a plurality of different frequency ranges, and the frequency ranges include a first frequency range and a second frequency range Frequency range; and using the frequency conversion control signals of the first and second frequency ranges to alternately charge and discharge the battery to increase the specific gravity of the sulfuric acid solution to be equivalent to the initial specific gravity. 如申請專利範圍第9項所述之電池再生方法,其中各該頻率範圍其中包含一主頻率,該主頻率位於對應之該頻率範圍內,其中不同該頻率範圍之各該主頻率間具有一倍數關係。 The battery regeneration method as described in item 9 of the patent application range, wherein each of the frequency ranges includes a main frequency, and the main frequency is located in the corresponding frequency range, wherein each main frequency different from the frequency range has a multiple relationship. 如申請專利範圍第9項所述之電池再生方法,其中各該變頻控制訊號,為於對應該頻率範圍內之線性掃頻訊號。 The battery regeneration method as described in item 9 of the patent application scope, wherein each of the frequency conversion control signals is a linear frequency sweep signal corresponding to the frequency range.
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