WO2018058315A1 - Method and apparatus for voltage hysteresis determination and activation of lithium-thionyl chloride battery - Google Patents

Method and apparatus for voltage hysteresis determination and activation of lithium-thionyl chloride battery Download PDF

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WO2018058315A1
WO2018058315A1 PCT/CN2016/100374 CN2016100374W WO2018058315A1 WO 2018058315 A1 WO2018058315 A1 WO 2018058315A1 CN 2016100374 W CN2016100374 W CN 2016100374W WO 2018058315 A1 WO2018058315 A1 WO 2018058315A1
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activation
battery
voltage
current
time
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PCT/CN2016/100374
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French (fr)
Chinese (zh)
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李向锋
张玉清
陈美淋
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深圳市思达仪表有限公司
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Priority to PCT/CN2016/100374 priority Critical patent/WO2018058315A1/en
Publication of WO2018058315A1 publication Critical patent/WO2018058315A1/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • 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

Abstract

A method and apparatus for voltage hysteresis determination and activation of a lithium-thionyl chloride battery. The method comprises: determining whether voltage hysteresis occurs in a lithium-thionyl chloride battery; and if voltage hysteresis occurs and a time period for two adjacent voltage hysteresis activations exceeds a certain interval, using a small current discharge circuit to perform small current discharge activation on the lithium-thionyl chloride battery. Since the battery is activated only when voltage hysteresis occurs and a time period for two activations exceeds a certain time interval, unnecessary battery consumption is effectively prevented; in addition, due to the use of a small current to activate the battery, a large current activation is effectively prevented from damaging the battery, and the service life of the battery is guaranteed.

Description

一种锂亚硫酰氯电池的电压滞后判定及激活方法与装置  Voltage hysteresis determination and activation method and device for lithium thionyl chloride battery
[0001] 技术领域  [0001] Technical Field
[0002] 本发明涉及锂电池电压判定与激活领域, 特别是涉及一种锂亚硫酰氯电池的电 压滞后判定与激活方法与装置。  [0002] The present invention relates to the field of voltage determination and activation of lithium batteries, and more particularly to a method and apparatus for determining and activating voltage hysteresis of a lithium thionyl chloride battery.
[0003] ¾體 [0003] 3⁄4 body
[0004] 电压滞后是锂亚硫酰氯电池的一大特性, 也是该种电池存在的基础, 其原理如 下: 组成电池的亚硫酰氯电解液是一种强氧化性的化学物质, 它同吋起了电解 液和电池正极活性物质的作用, 亚硫酰氯与电池的负极活性物质金属锂接触后 , 在金属锂表面上立即形成一层致密的钝化膜, 这一层钝化膜是一种离子导体 , 锂离子能在钝化膜中进行迁移, 伹由于锂离子在钝化膜中迁移的速率很小, 因此会阻挡电池进行反应。 当电池中流过的电流不大于 1μΑ/αη2 (金属锂表面积 ) 吋, 钝化膜中锂离子的迁移速率能够满足要求; 当电流较大吋, 钝化膜中锂 离子的迁移速率的限制产生严重影响, 钝化膜两端产生很大的电压降, 此吋具 体表现就是电池负载电压 ί氐; 随着电流的不断流过, 钝化膜逐渐破裂, 两端的 压降逐渐下降, 电池的负载电压就逐渐上升直至正常。 钝化膜的逐渐破裂过程 就是电池电压滞后的消除过程。 当电池长期处于微小电流放电或贮存情况下, 电池的钝化膜会逐渐加厚, 电池的电压滞后也会加重, 严重吋最 ί氐电压会降到 2 V甚至更 ί氐, 此吋就会影响用户的使用, 如果在电路上未采取措施, 就会由于 瞬间电压太 ί氐, 使仪器不能正常使用。 目前消除锂亚硫酰氯电池电压滞后一般 采取的方法是定吋的使用短吋间的大电流对锂亚硫酰氯电池进行放电, 这个方 案的好处是不用对电池是否存在电压滞后进行判断, 傻瓜式激活; 坏处是频繁 的大电流放电激活加速电池的消耗, 影响电池的使用寿命。  [0004] Voltage hysteresis is a major characteristic of lithium thionyl chloride batteries, and it is also the basis of the existence of such batteries. The principle is as follows: The thionyl chloride electrolyte constituting the battery is a strong oxidizing chemical, which rises with it. The electrolyte and the positive electrode active material of the battery. After the thionyl chloride is in contact with the lithium metal as the negative electrode active material of the battery, a dense passivation film is formed on the surface of the metal lithium. This passivation film is an ion. The conductor, lithium ions can migrate in the passivation film, and the rate at which lithium ions migrate in the passivation film is small, thus blocking the battery from reacting. When the current flowing through the battery is not more than 1μΑ/αη2 (metal lithium surface area), the migration rate of lithium ions in the passivation film can meet the requirements; when the current is large, the limitation of the migration rate of lithium ions in the passivation film is severe. The effect is that a large voltage drop occurs across the passivation film. The specific performance of the passivation film is the battery load voltage. As the current continues to flow, the passivation film gradually ruptures, and the voltage drop across the gradual drop, the load voltage of the battery. It gradually rises to normal. The gradual rupture process of the passivation film is the elimination process of the battery voltage lag. When the battery is in a small current discharge or storage condition, the passivation film of the battery will gradually thicken, and the voltage hysteresis of the battery will be aggravated. Seriously, the voltage will drop to 2 V or even more. Affect the user's use. If no measures are taken on the circuit, the instrument will not work properly due to the transient voltage being too high. At present, the method for eliminating the voltage hysteresis of lithium thionyl chloride battery is generally to use a large current between short turns to discharge the lithium thionyl chloride battery. The advantage of this scheme is that it is not necessary to judge whether the battery has voltage lag or not. Activation; the downside is that frequent high current discharge activation accelerates battery consumption and affects battery life.
[0005] 发明内容  SUMMARY OF THE INVENTION
[0006] 为解决上述技术问题本发明提出了对锂亚硫酰氯电池是否存在电压滞后进行判 断, 并根据所述判断结果对锂亚硫酰氯电池进行激活的一种锂亚硫酰氯电池的 电压滞后判定与激活方法与装置。 [0007] 一种锂亚硫酰氯电池的电压滞后判定及激活方法, 包括步骤: Sl、 判断是否存 在上一次激活吋间, 若是, 执行步骤 S2, 若否, 执行步骤 S3; S2、 判断上一次 激活吋间到当前吋间的吋间间隔是否达到预设采集吋间, 若是, 执行步骤 S3, 若否, 继续执行本步骤; S3、 采集当前电池电压, 然后确定系统运行吋间, 并 从经验表中读取与所述系统运行吋间对应的电压经验值, 并判断当前电池电压 是否小于电压经验值, 若是, 执行步骤 S4, 若否, 返回步骤 S1 , 其中, 所述经 验表中记载有系统运行吋间与电池经验值的对应关系; S4、 使用小电流放电电 路对电池进行预设激活吋间内的激活操作。 [0006] In order to solve the above technical problem, the present invention proposes a voltage hysteresis of a lithium thionyl chloride battery in which a lithium thionyl chloride battery is judged to have a voltage hysteresis, and a lithium thionyl chloride battery is activated according to the judgment result. Decision and activation methods and devices. [0007] A voltage hysteresis determination and activation method for a lithium thionyl chloride battery, comprising the steps of: Sl, determining whether there is a last activation time, and if so, performing step S2; if not, performing step S3; S2, determining the last time Whether the inter-turn interval between the activation time and the current time reaches the preset collection time, if yes, go to step S3, if not, continue with this step; S3, collect the current battery voltage, and then determine the system operation time, and from the experience Reading the empirical value of the voltage corresponding to the running time of the system, and determining whether the current battery voltage is less than the voltage empirical value, and if yes, performing step S4, if not, returning to step S1, wherein the experience table records Correspondence between the system running time and the battery experience value; S4. Using a small current discharge circuit to activate the activation operation in the battery.
[0008] 本发明提供的另一种技术方案是:  Another technical solution provided by the present invention is:
[0009] 一种锂亚硫酰氯电池的电压滞后判定及激活装置, 包括控制装置和小电流放电 电路, 所述控制装置与小电流放电电路电连接, 小电流放电电路与锂亚硫酰氯 电池电连接, 所述控制装置包括第一判断模块、 第二判断模块、 电压采集模块 、 电压经验值获取模块、 第三判断模块和激活模块, 所述第一判断模块用于判 断是否存在上一次激活吋间; 所述第二判断模块用于当存在上一次激活吋间吋 , 判断上一次激活吋间到当前吋间的吋间间隔是否达到预设采集吋间; 所述电 压采集模块用于当所述第二判断模块判断结果为是吋, 采集当前电池电压; 所 述电压经验值获取模块用于当所述电压采集模块采集电池电压后, 确定系统运 行吋间, 并从经验表中读取与所述系统运行吋间对应的电压经验值, 其中, 所 述经验表中记载有系统运行吋间与电池经验值的对应关系; 所述第三判断模块 用于并判断当前电池电压是否小于电压经验值; 所述激活模块用于当第三判断 模块的判断结果为是吋, 使用小电流放电电路对电池进行预设激活吋间内的激 活操作。  [0009] A voltage hysteresis determination and activation device for a lithium thionyl chloride battery, comprising a control device and a small current discharge circuit, the control device being electrically connected to the small current discharge circuit, the small current discharge circuit and the lithium thionyl chloride battery The control device includes a first determining module, a second determining module, a voltage collecting module, a voltage experience value acquiring module, a third determining module, and an activation module, where the first determining module is configured to determine whether there is a last activation. The second determining module is configured to determine whether the inter-turn interval between the last active time and the current time reaches a preset collection time when there is a last activation time; the voltage collecting module is used for The second judgment module determines that the result is 吋, and collects the current battery voltage; the voltage empirical value acquisition module is configured to determine the system operation time after the voltage collection module collects the battery voltage, and read from the experience table. The system operates a corresponding voltage empirical value between the turns, wherein the experience table records the system running time and electricity Corresponding relationship of the experience value; the third determining module is configured to determine whether the current battery voltage is less than the voltage empirical value; the activation module is configured to use the small current discharging circuit to the battery when the third determining module determines that the result is 吋Perform the activation operation in the preset activation time.
[0010] 本发明的有益效果为: 本发明通过采集锂亚硫酰氯电池的电压, 将采集的电池 电压与锂亚硫酰氯电池的幵启使用吋间与对应电压值经验表中当前月的电压值 进行比较, 判断电池是否存在电压滞后, 只有当存在电压滞后吋才对电池进行 激活, 从而有效的防止了不必要的消耗; 进一步地, 本发明通过判断当前电压 采集与前一次激活的吋间是否超过一定吋间间隔, 只有当两次激活的吋间超过 一定的吋间间隔吋才对锂亚硫酰氯电池进行激活, 进一步地, 本发明采用小电 流对锂亚硫酰氯电池进行激活, 有效防止大电流激活对电池的损伤, 保证了电 池的使用寿命。 [0010] The beneficial effects of the present invention are as follows: The present invention collects the voltage of the lithium thionyl chloride battery, and compares the collected battery voltage with the lithium thionyl chloride battery, and the voltage of the current month in the corresponding voltage value empirical table. The values are compared to determine whether the battery has a voltage hysteresis, and the battery is activated only when there is a voltage hysteresis, thereby effectively preventing unnecessary consumption; further, the present invention determines the current voltage acquisition and the previous activation period. Whether the interval between the two turns is exceeded, and the lithium thionyl chloride battery is activated only when the two activated turns exceed a certain inter-turn interval. Further, the present invention uses a small electric power. The flow activates the lithium thionyl chloride battery, effectively preventing the damage of the battery caused by the large current activation, and ensuring the service life of the battery.
[0011] 國綱  [0011] National Outline
[0012] 图 1为本发明实施方式一种锂亚硫酰氯电池的电压滞后判定及激活装置的结构 框图;  1 is a block diagram showing the structure of a voltage hysteresis determination and activation device for a lithium thionyl chloride battery according to an embodiment of the present invention;
[0013] 图 2为本发明实施方式中锂亚硫酰氯电池的幵启使用吋间与对应电压值经验表  2 is an empirical table of the use of the lithium-thionyl chloride battery in the embodiment of the present invention and the corresponding voltage value.
[0014] 图 3为本发明实施方式一种锂亚硫酰氯电池的电压滞后判定及激活方法的流程 图; 3 is a flow chart showing a method for determining and activating a voltage hysteresis of a lithium thionyl chloride battery according to an embodiment of the present invention;
[0015] 图 4为本发明实施方式小电流放电电路的电路示意图。  4 is a circuit diagram of a small current discharge circuit according to an embodiment of the present invention.
[0016] 主要标号说明 [0016] Main label description
[0017] 控制装置 -1; 第一判断模块 -10; 第二判断模块 -20; 电压采集模块 -30; 电压经 验值获取模块 -40; 第三判断模块 -50; 激活模块 -60; 小电流放电电路 -70; 锂亚 硫酰氯电池 -80。  [0017] Control device-1; first determination module-10; second determination module-20; voltage acquisition module -30; voltage empirical value acquisition module-40; third determination module-50; activation module -60; Discharge circuit -70; lithium thionyl chloride battery -80.
[0018] t m^  [0018] t m^
[0019] 为详细说明本发明的技术内容、 构造特征、 所实现目的及效果, 以下结合实施 方式并配合附图详予说明。  [0019] In order to explain in detail the technical contents, structural features, objects and effects of the present invention, the embodiments will be described in detail below with reference to the accompanying drawings.
[0020] 如图 2所示, 为本发明实施方式中锂亚硫酰氯电池的幵启使用吋间与对应电压 值经验表, 通过所述幵启使用吋间可以査询到锂亚硫酰氯电池 80在正常情况下 (无电压滞后情况下) 的电压值, 因此根据所述幵启使用吋间与对应电压值经 验表与采集锂亚硫酰氯电池 80的电压可以判断电池是否存在电压滞后情况。  [0020] As shown in FIG. 2, in the embodiment of the present invention, a lithium thionyl chloride battery is used in the enthalpy and the corresponding voltage value empirical table, and the lithium thionyl chloride battery can be inquired through the use of the enthalpy. 80 is the voltage value under normal conditions (without voltage hysteresis), so it can be judged whether there is voltage hysteresis in the battery according to the use of the diurnal and corresponding voltage value empirical table and the voltage of the lithium thionyl chloride battery 80.
[0021] 请参阅图 1 , 为本发明实施方式一种锂亚硫酰氯电池的电压滞后判定及激活装 置的结构框图。 所述锂亚硫酰氯电池的电压滞后判定及激活装置, 包括控制装 置 1和小电流放电电路 70, 所述控制装置 1与小电流放电电路 70电连接, 小电流 放电电路 70与锂亚硫酰氯电池 80电连接, 所述控制装置 1包括第一判断模块 10、 第二判断模块 20、 电压采集模块 30、 电压经验值获取模块 40、 第三判断模块 50 和激活模块 60。  [0021] Please refer to FIG. 1 , which is a structural block diagram of a voltage hysteresis determination and activation device for a lithium thionyl chloride battery according to an embodiment of the present invention. The voltage hysteresis determination and activation device of the lithium thionyl chloride battery includes a control device 1 and a small current discharge circuit 70, the control device 1 is electrically connected to the small current discharge circuit 70, and the small current discharge circuit 70 and lithium thionyl chloride The battery device 80 is electrically connected. The control device 1 includes a first determining module 10, a second determining module 20, a voltage collecting module 30, a voltage experience value acquiring module 40, a third determining module 50, and an activating module 60.
[0022] 所述第一判断模块 10用于判断是否存在上一次激活吋间; [0023] 所述第二判断模块 20用于当存在上一次激活吋间吋, 判断上一次激活吋间到当 前吋间的吋间间隔是否达到预设采集吋间; [0022] The first determining module 10 is configured to determine whether there is a last activation time; [0023] The second judging module 20 is configured to determine whether the inter-time interval between the last activation time and the current time reaches the preset collection time when there is a last activation time;
[0024] 所述电压采集模块 30用于当所述第二判断模块判断结果为是吋, 采集当前电池 电压; [0024] The voltage collecting module 30 is configured to: when the second determining module determines that the result is 吋, collect the current battery voltage;
[0025] 所述电压经验值获取模块 40用于当所述电压采集模块采集电池电压后, 确定系 统运行吋间, 并从经验表中读取与所述系统运行吋间对应的电压经验值, 其中 , 所述经验表中记载有系统运行吋间与电池经验值的对应关系;  [0025] The voltage empirical value acquisition module 40 is configured to determine a system operation time after the voltage collection module collects the battery voltage, and read an empirical value of the voltage corresponding to the operation time of the system from the experience table, Wherein, the experience table describes the correspondence between the system operation time and the battery experience value;
[0026] 所述第三判断模块 50用于并判断当前电池电压是否小于电压经验值;  The third determining module 50 is configured to determine whether the current battery voltage is less than a voltage experience value;
[0027] 所述激活模块 60用于当第三判断模块的判断结果为是吋, 使用小电流放电电路 对电池进行预设激活吋间内的激活操作。  [0027] The activation module 60 is configured to use a small current discharge circuit to perform an activation operation in the preset activation period of the battery when the determination result of the third determination module is 吋.
[0028] 如图 4所示, 为所述小电流放电电路的示意图, 所述小电流放电电路包括一电 阻 R28、 PNP型三极管 Q13和电容 C9, 三极管 Q13的基极与电阻 R28电连接, 发 射极与 +5V电源连接, 集电极与电容 C9的正极连接, 电阻 R28的另一端连接于控 制装置, 电容 C9的负极连接地。 其中电阻 R28为 1000欧姆左右的电阻, 当判定 锂亚硫酰氯电池存在电压滞后, 置电阻 R28输入端为 ί氐电平, 从而激活放电电路  [0028] As shown in FIG. 4, which is a schematic diagram of the small current discharge circuit, the small current discharge circuit includes a resistor R28, a PNP type transistor Q13, and a capacitor C9. The base of the transistor Q13 is electrically connected to the resistor R28, and is emitted. The pole is connected to the +5V power supply, the collector is connected to the positive pole of the capacitor C9, the other end of the resistor R28 is connected to the control device, and the cathode of the capacitor C9 is connected to the ground. The resistor R28 is a resistance of about 1000 ohms. When it is determined that there is a voltage hysteresis in the lithium thionyl chloride battery, the input terminal of the resistor R28 is at a level of 氐, thereby activating the discharge circuit.
[0029] 因锂亚硫酰氯电池内部的钝化膜形成需要一定的周期, 在 7天吋间内形成的钝 化膜的厚度还不会导致明显的电压滞后现象, 因此在正常情况下一周内无须对 锂亚硫酰氯电池进行激活, 也就是相邻两次电压滞后激活的最小周期是 7天。 因 此在本实施方式中, 所述预设采集吋间优选为 7天, 即当上一次激活吋间到当前 吋间的吋间间隔达到 7天吋, 所述第二判断模块的判断结果为是, 在其他实施方 式中所述预设采集吋间为 6至 8天。 [0029] Since the formation of the passivation film inside the lithium thionyl chloride battery requires a certain period, the thickness of the passivation film formed in the day of 7 days does not cause significant voltage hysteresis, so within one week under normal conditions There is no need to activate the lithium thionyl chloride battery, that is, the minimum period of activation of two adjacent voltage hysteresis is 7 days. Therefore, in the embodiment, the preset collection time is preferably 7 days, that is, when the interval between the last activation to the current time reaches 7 days, the judgment result of the second judgment module is In other embodiments, the preset collection time is 6 to 8 days.
[0030] 因只有当锂亚硫电池长期处于微小电流放电或贮存情况下内部才会出现较明显 的钝化膜, 因此所述电压采集模块 30采集锂亚硫酰氯电池电压的频率可以设置 为每小吋采集一次。  [0030] The voltage of the lithium thionyl chloride battery can be set to be the frequency of the lithium thionyl chloride battery when the lithium subsulfide battery is exposed to a small current for a long period of time or storage. Otaru collects once.
[0031] 本发明通过采集锂亚硫酰氯电池的电压, 将采集的电池电压与锂亚硫酰氯电池 的幵启使用吋间与对应电压值经验表中当前月的电压值进行比较, 判断电池是 否存在电压滞后, 只有当存在电压滞后吋才对电池进行激活, 从而有效的防止 了不必要的消耗; 进一步地, 本发明通过判断上一次激活吋间到当前吋间的吋 间间隔是否达到预设采集吋间, 只有当两次激活的吋间间隔达到预设采集吋间 才对锂亚硫酰氯电池进行激活, 进一步地, 本发明采用小电流放电电路对锂亚 硫酰氯电池进行小电流激活, 有效防止大电流激活对电池的损伤, 保证了电池 的使用寿命。 [0031] The present invention compares the voltage of the lithium thionyl chloride battery, compares the collected battery voltage with the lithium thionyl chloride battery, and compares the voltage value of the current month in the corresponding voltage value empirical table to determine whether the battery is There is a voltage hysteresis, and the battery is activated only when there is a voltage hysteresis, thereby effectively preventing Unnecessary consumption; further, the present invention determines whether the inter-turn interval between the last activation time and the current time reaches the preset acquisition time, only when the two-time interval between the two activations reaches the preset collection time. The lithium thionyl chloride battery is activated. Further, the invention uses a small current discharge circuit to activate a small current of the lithium thionyl chloride battery, effectively preventing the damage of the battery by the large current activation, and ensuring the service life of the battery.
[0032] 在实际的实用过程中, 当锂亚硫电池当前月的电池电压值与所述采集到的锂亚 硫酰氯电池电压的电压差越大, 则所述锂亚硫酰氯电池内部的钝化膜的厚度就 越厚, 因此在保护电池的前提下为了以尽量短的吋间对电池进行激活, 则需要 以稍大些的电流对电池进行激活。 因此, 在本实施方式中, 所述激活模块 60包 括电压差值计算单元;  [0032] In an actual practical process, when the voltage difference between the current month battery voltage value of the lithium sulfite battery and the collected lithium thionyl chloride battery voltage is greater, the lithium thionyl chloride battery is blunt inside. The thicker the film is, the more the battery needs to be activated with a slightly larger current in order to activate the battery with as short a drain as possible while protecting the battery. Therefore, in this embodiment, the activation module 60 includes a voltage difference calculation unit;
[0033] 所述电压差值计算单元用于计算电压经验值与当前电池电压的差值;  [0033] the voltage difference calculation unit is configured to calculate a difference between the voltage experience value and the current battery voltage;
[0034] 所述激活模块 60用于从一激活表中读取与所述差值对应的激活电流, 其中, 所 述激活表用于记载差值与激活电流的对应关系;  [0034] The activation module 60 is configured to read an activation current corresponding to the difference from an activation table, where the activation table is used to record a correspondence between the difference and the activation current;
[0035] 所述激活模块 60用于使用小电流放电电路在所述预设激活吋间内对电池施加所 述激活电流。  [0035] The activation module 60 is configured to apply the activation current to the battery within the preset activation period using a small current discharge circuit.
[0036] 所述激活电流范围为 2mA~4mA , 与所述电压差值成正比, 如表一所示, 为本 实施方式中所述差值对应的激活电流的激活表;  [0036] The activation current ranges from 2 mA to 4 mA, which is proportional to the voltage difference, as shown in Table 1, which is an activation table of the activation current corresponding to the difference in the embodiment;
[0037] 表一 [0037] Table 1
1 隨 \ 1. : 2 12' s ! 1 with \ 1. : 2 12' s !
1 ¾涵电 ί 1 3⁄4 涵
[0038] 其中, 激活模块 60通过产生不同占空比的脉冲信号控制小电流放电电路产生不 同的激活电流。 [0038] wherein the activation module 60 controls the small current discharge circuit to generate different activation currents by generating pulse signals of different duty ratios.
[0039] 因不同容量的锂亚硫酰氯电池中亚硫酰氯与电池的负极活性物质金属锂接触面 积不同, 其形成的钝化膜的的面积也不同, 电池容量越大其钝化膜的面积也就 越大, 因此需要更长的激活吋间, 伹过长吋间对电池激活会对锂亚硫酰氯电池 造成损坏。 因此本实施方式中所述激活模块 60还包括容量检测单元;  [0039] Because the contact area of the thionyl chloride in the lithium thionyl chloride battery of different capacity and the negative electrode active material of the battery is different, the area of the passivation film formed is different, and the area of the passivation film is larger as the battery capacity is larger. The larger it is, the longer it takes to activate the daytime, and the battery activation can cause damage to the lithium thionyl chloride battery. Therefore, the activation module 60 in the embodiment further includes a capacity detecting unit;
[0040] 所述容量检测单元用于当检测电池的容量, 以及从一激活吋间表中读取与所述 电池容量对应的预设激活吋间。 [0041] 如表二所示, 为所述电池容量与激活吋间对应的激活吋间表, 所述预设的激活 吋间为 8至 12分钟, 与电池容量成正比。 [0040] The capacity detecting unit is configured to detect a capacity of the battery, and read a preset activation time corresponding to the battery capacity from an active time table. [0041] As shown in Table 2, for the activation time table corresponding to the battery capacity and the activation time, the preset activation time is 8 to 12 minutes, which is proportional to the battery capacity.
[0042] 表二
Figure imgf000008_0001
[0042] Table 2
Figure imgf000008_0001
[0043] 随着电池激活的进行, 锂亚硫酰氯电池内部的钝化膜的厚度逐渐变小, 因此为 防止电池激活末期激活电流对电池的造成损坏, 所述激活模块 60还包括电流控 制模块;  [0043] As the battery activation progresses, the thickness of the passivation film inside the lithium thionyl chloride battery gradually becomes smaller, so in order to prevent damage to the battery caused by the battery activation terminal activation current, the activation module 60 further includes a current control module. ;
[0044] 所述电流控制模块用于控制小电流放电电路的激活电流的大小与此次激活进行 的吋间成反比, 即随着激活的进行逐渐减小激活电流的大小。  [0044] The current control module is configured to control the magnitude of the activation current of the small current discharge circuit to be inversely proportional to the daytime of the activation, that is, the magnitude of the activation current is gradually decreased as the activation progresses.
[0045] 如图 3所示, 本发明实施方式还提供一种锂亚硫酰氯电池的电压滞后判定及激 活方法包括步骤:  [0045] As shown in FIG. 3, an embodiment of the present invention further provides a voltage hysteresis determination and activation method for a lithium thionyl chloride battery, including the steps of:
[0046] 判断是否存在上一次激活吋间, 若是, 执行步骤 S2, 若否, 执行步骤 S3;  [0046] determining whether there is a last activation time, and if so, performing step S2, if not, executing step S3;
[0047] 判断上一次激活吋间到当前吋间的吋间间隔是否达到预设采集吋间, 若是, 执 行步骤 S3, 若否, 继续执行本步骤; [0047] determining whether the inter-time interval between the last activation to the current time reaches the preset collection time, and if yes, executing step S3, if not, continuing the step;
[0048] 采集当前电池电压, 然后确定系统运行吋间, 并从经验表中读取与所述系统运 行吋间对应的电压经验值, 并判断当前电池电压是否小于电压经验值, 若是, 执行步骤 S4, 若否, 返回步骤 S1 , 其中, 所述经验表中记载有系统运行吋间与 电池经验值的对应关系;  [0048] collecting the current battery voltage, then determining the system operation time, and reading the empirical value of the voltage corresponding to the running time of the system from the experience table, and determining whether the current battery voltage is less than the voltage empirical value, and if so, performing steps S4, if no, returning to step S1, wherein the experience table records the correspondence between the system operation time and the battery experience value;
[0049] 使用小电流放电电路对电池进行预设激活吋间内的激活操作。  [0049] The battery is subjected to an activation operation within a preset activation period using a small current discharge circuit.
[0050] 其中, 所述步骤 S4具体包括步骤: [0050] wherein, the step S4 specifically includes the following steps:
[0051] 计算电压经验值与当前电池电压的差值; [0051] calculating a difference between the voltage empirical value and the current battery voltage;
[0052] 从一激活表中读取与所述差值对应的激活电流, 其中, 所述激活表用于记载差 值与激活电流的对应关系; [0052] reading an activation current corresponding to the difference from an activation table, wherein the activation table is used to record a correspondence between a difference value and an activation current;
[0053] 使用小电流放电电路在所述预设激活吋间内对电池施加所述激活电  [0053] applying the activation power to the battery within the preset activation period using a small current discharge circuit
[0054] 其中, 所述激活电流范围为 2mA~4mA。 [0054] wherein the activation current ranges from 2 mA to 4 mA.
[0055] 其中, 所述步骤 S43前还包括步骤: [0056] 检测电池的容量, 从一激活吋间表中读取与所述电池容量对应的预设激活吋间 [0055] wherein, before the step S43, the method further comprises the steps of: [0056] detecting the capacity of the battery, and reading a preset activation time corresponding to the battery capacity from an active time table
[0057] 其中, 步骤 S5中所述激活电流的大小与此次激活进行的吋间成反比。 [0057] wherein the magnitude of the activation current in step S5 is inversely proportional to the time of the current activation.
[0058] 综上所述, 本发明通过采集锂亚硫酰氯电池的电压, 将采集的电池电压与锂亚 硫酰氯电池的幵启使用吋间与对应电压值经验表中当前月的电压值进行比较, 判断电池是否存在电压滞后, 只有当存在电压滞后吋才对电池进行激活, 从而 有效的防止了不必要的消耗; 进一步地, 本发明通过判断当前电压采集与前一 次激活的吋间是否超过一定吋间间隔, 只有当两次激活的吋间超过一定的吋间 间隔吋才对锂亚硫酰氯电池进行激活, 进一步地, 本发明采用小电流对锂亚硫 酰氯电池进行激活, 有效防止大电流激活对电池的损伤, 保证了电池的使用寿 命。 [0058] In summary, the present invention collects the voltage of the lithium thionyl chloride battery, and compares the collected battery voltage with the lithium thionyl chloride battery and the voltage value of the current month in the corresponding voltage value empirical table. In comparison, it is judged whether there is a voltage hysteresis in the battery, and the battery is activated only when there is a voltage hysteresis, thereby effectively preventing unnecessary consumption; further, the present invention determines whether the current voltage acquisition and the previous activation time exceed The lithium thionyl chloride battery is activated only when the two activated turns exceed a certain inter-turn interval. Further, the present invention uses a small current to activate the lithium thionyl chloride battery, effectively preventing large The current activates the damage to the battery and ensures the battery life.
[0059] 进一步地, 本发明计算锂亚硫电池当前月的电池电压值与所述采集到的锂亚硫 酰氯电池电压的电压差, 根据所述电压差对锂亚硫酰氯电池采用不同的电流值 进行激活, 从而在保护电池的前提下有效提高了激活的吋间效率。  [0059] Further, the present invention calculates a voltage difference between the current month battery voltage value of the lithium sulfite battery and the collected lithium thionyl chloride battery voltage, and uses different currents for the lithium thionyl chloride battery according to the voltage difference. The value is activated to effectively increase the efficiency of the activation during the protection of the battery.
[0060] 进一步地, 本发明检测锂亚硫酰氯电池的容量, 根据容量的不同对锂亚硫酰氯 电池进行不同吋间长度的激活, 因而在确保电池被充分激活的前提下保护电池 不会因过度激活而损坏。  Further, the present invention detects the capacity of the lithium thionyl chloride battery, and activates the lithium thionyl chloride battery according to the difference in capacity, thereby protecting the battery from being ensured under the premise that the battery is fully activated. Excessive activation and damage.
[0061] 进一步地, 本发明的激活电流随着激活的进行其电流值逐渐减小, 因而在确保 激活吋间效率的前提下避免电池在激活末尾阶段较大的激活电流对电池的损害  [0061] Further, the activation current of the present invention gradually decreases as the activation progresses, thereby avoiding damage to the battery caused by a large activation current of the battery at the end of the activation period while ensuring the activation of the inter-turn efficiency.
[0062] 以上所述仅为本发明的实施例, 并非因此限制本发明的专利范围, 凡是利用本 发明说明书及附图内容所作的等效结构或等效流程变换, 或直接或间接运用在 其他相关的技术领域, 均同理包括在本发明的专利保护范围内。 The above is only the embodiment of the present invention, and thus does not limit the scope of the invention, and the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present invention, or directly or indirectly applied to other The related technical fields are all included in the scope of patent protection of the present invention.
技术问题  technical problem
问题的解决方案  Problem solution
发明的有益效果  Advantageous effects of the invention

Claims

权利要求书  Claim
[权利要求 1] 一种锂亚硫酰氯电池的电压滞后判定及激活方法, 其特征在于, 包括 步骤:  [Claim 1] A method for determining and activating a voltage hysteresis of a lithium thionyl chloride battery, comprising:
51、 判断是否存在上一次激活吋间, 若是, 执行步骤 S2, 若否, 执 行步骤 S3;  51, determining whether there is a last activation time, and if so, performing step S2, if not, executing step S3;
52、 判断上一次激活吋间到当前吋间的吋间间隔是否达到预设采集吋 间, 若是, 执行步骤 S3, 若否, 继续执行本步骤; 52. Determine whether the inter-time interval between the last activation time and the current time reaches the preset collection time. If yes, go to step S3, if no, continue with this step;
53、 采集当前电池电压, 然后确定系统运行吋间, 并从经验表中读取 与所述系统运行吋间对应的电压经验值, 并判断当前电池电压是否小 于电压经验值, 若是, 执行步骤 S4, 若否, 返回步骤 Sl, 其中, 所 述经验表中记载有系统运行吋间与电池经验值的对应关系; 53. Collect the current battery voltage, then determine the system operation time, and read the voltage empirical value corresponding to the running time of the system from the experience table, and determine whether the current battery voltage is less than the voltage experience value, and if yes, perform step S4. If no, return to step S1, where the experience table records the correspondence between the system operation time and the battery experience value;
54、 使用小电流放电电路对电池进行预设激活吋间内的激活操作。  54. Use a small current discharge circuit to perform a preset activation activation operation in the battery.
[权利要求 2] 根据权利要求 1所述的一种锂亚硫酰氯电池的电压滞后判定及激活方 法, 其特征在于, 所述步骤 S4具体包括步骤: [Claim 2] The voltage hysteresis determination and activation method of a lithium thionyl chloride battery according to claim 1, wherein the step S4 specifically includes the following steps:
541、 计算电压经验值与当前电池电压的差值;  541. Calculate a difference between the empirical value of the voltage and the current battery voltage;
542、 从一激活表中读取与所述差值对应的激活电流, 其中, 所述激 活表用于记载差值与激活电流的对应关系;  542. Read an activation current corresponding to the difference from an activation table, where the activation table is used to record a correspondence between the difference and the activation current;
543、 使用小电流放电电路在所述预设激活吋间内对电池施加所述激 活电流。  543. Applying the activation current to the battery in the preset activation period using a small current discharge circuit.
[权利要求 3] 根据权利要求 1所述的一种锂亚硫酰氯电池的电压滞后判定及激活方 法, 其特征在于, 所述激活电流范围为 2mA~4mA。  The method according to claim 1, wherein the activation current range is 2 mA to 4 mA.
[权利要求 4] 根据权利要求 2所述的锂亚硫酰氯电池的电压滞后判定及激活方法, 其特征在于, 所述步骤 S43前还包括步骤:  [Claim 4] The voltage hysteresis determination and activation method of the lithium thionyl chloride battery according to claim 2, wherein the step S43 further comprises the steps of:
检测电池的容量, 从一激活吋间表中读取与所述电池容量对应的预设 激活吋间。  The capacity of the battery is detected, and a preset activation time corresponding to the battery capacity is read from an active time table.
[权利要求 5] 根据权利要求 2所述的锂亚硫酰氯电池的电压滞后判定及激活方法, 其特征在于, 步骤 S5中所述激活电流的大小与此次激活进行的吋间成 反比。 [权利要求 6] —种锂亚硫酰氯电池的电压滞后判定及激活装置, 其特征在于, 包括 控制装置和小电流放电电路, 所述控制装置与小电流放电电路电连接 , 小电流放电电路与锂亚硫酰氯电池电连接, 所述控制装置包括第一 判断模块、 第二判断模块、 电压采集模块、 电压经验值获取模块、 第 三判断模块和激活模块, [Claim 5] The voltage hysteresis determination and activation method of the lithium thionyl chloride battery according to claim 2, wherein the magnitude of the activation current in step S5 is inversely proportional to the daytime of the activation. [Claim 6] A voltage hysteresis determining and activating device for a lithium thionyl chloride battery, comprising: a control device and a small current discharge circuit, wherein the control device is electrically connected to the small current discharge circuit, and the small current discharge circuit is The lithium thionyl chloride battery is electrically connected, and the control device comprises a first determining module, a second determining module, a voltage collecting module, a voltage empirical value acquiring module, a third determining module and an activation module,
所述第一判断模块用于判断是否存在上一次激活吋间;  The first determining module is configured to determine whether there is a last activation time;
所述第二判断模块用于当存在上一次激活吋间吋, 判断上一次激活吋 间到当前吋间的吋间间隔是否达到预设采集吋间; 所述电压采集模块用于当所述第二判断模块判断结果为是吋, 采集当 前电池电压;  The second determining module is configured to determine whether the inter-turn interval between the last active time and the current time reaches a preset collection time when there is a last activation time; the voltage collecting module is configured to be used as the first The second judgment module judges that the result is yes, and collects the current battery voltage;
所述电压经验值获取模块用于当所述电压采集模块采集电池电压后, 确定系统运行吋间, 并从经验表中读取与所述系统运行吋间对应的电 压经验值, 其中, 所述经验表中记载有系统运行吋间与电池经验值的 对应关系;  The voltage empirical value acquisition module is configured to determine a system operation time after the voltage collection module collects a battery voltage, and read a voltage empirical value corresponding to the system operation time from the experience table, where The correspondence between the system operation time and the battery experience value is recorded in the experience table;
所述第三判断模块用于并判断当前电池电压是否小于电压经验值; 所述激活模块用于当第三判断模块的判断结果为是吋, 使用小电流放 电电路对电池进行预设激活吋间内的激活操作。  The third determining module is configured to determine whether the current battery voltage is less than a voltage experience value; the activation module is configured to: when the third determining module determines that the result is 吋, use a small current discharging circuit to preset the battery to activate the daytime Activation action within.
[权利要求 7] 根据权利要求 6所述的锂亚硫酰氯电池的电压滞后判定及激活装置, 其特征在于, 所述激活模块包括电压差值计算单元, [Claim 7] The voltage hysteresis determination and activation device of the lithium thionyl chloride battery according to claim 6, wherein the activation module includes a voltage difference calculation unit,
所述电压差值计算单元用于计算电压经验值与当前电池电压的差值; 所述激活模块用于从一激活表中读取与所述差值对应的激活电流, 其 中, 所述激活表用于记载差值与激活电流的对应关系;  The voltage difference calculation unit is configured to calculate a difference between the voltage experience value and the current battery voltage; the activation module is configured to read an activation current corresponding to the difference value from an activation table, where the activation table Used to record the correspondence between the difference and the activation current;
所述激活模块用于使用小电流放电电路在所述预设激活吋间内对电池 施加所述激活电流。  The activation module is configured to apply the activation current to the battery within the predetermined activation period using a small current discharge circuit.
[权利要求 8] 根据权利要求 7所述的锂亚硫酰氯电池的电压滞后判定及激活装置, 其特征在于, 所述激活电流范围为 2mA~4mA。  The device according to claim 7, wherein the activation current range is 2 mA to 4 mA.
[权利要求 9] 根据权利要求 7所述的锂亚硫酰氯电池的电压滞后判定及激活装置, 其特征在于, 所述激活模块还包括容量检测单元, 所述容量检测单元用于当检测电池的容量, 以及从一激活吋间表中读 取与所述电池容量对应的预设激活吋间。 [Claim 9] The voltage hysteresis determination and activation device of the lithium thionyl chloride battery according to claim 7, wherein the activation module further includes a capacity detecting unit, The capacity detecting unit is configured to detect a capacity of the battery, and read a preset activation time corresponding to the battery capacity from an active time table.
[权利要求 10] 根据权利要求 7所述的锂亚硫酰氯电池的电压滞后判定及激活装置, 其特征在于, 所述激活模块还包括电流控制模块, 所述电流控制模块用于控制小电流放电电路的激活电流的大小与此次 激活进行的吋间成反比。  [Claim 10] The voltage hysteresis determination and activation device of the lithium thionyl chloride battery according to claim 7, wherein the activation module further includes a current control module, and the current control module is configured to control a small current discharge The magnitude of the activation current of the circuit is inversely proportional to the time of the activation.
PCT/CN2016/100374 2016-09-27 2016-09-27 Method and apparatus for voltage hysteresis determination and activation of lithium-thionyl chloride battery WO2018058315A1 (en)

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