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    • 4. 发明授权
    • Non-aqueous electrolyte secondary battery charging method, electronic device, battery pack, and charging device
    • 非水电解质二次电池充电方法,电子装置,电池组和充电装置
    • US08193777B2
    • 2012-06-05
    • US12519287
    • 2007-12-11
    • Takuya Nakashima
    • Takuya Nakashima
    • H02J7/04H02J7/16
    • H01M2/16H01M10/44H02J7/0093
    • The present invention aims to quickly charge a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode. A method according to the present invention for charging a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode is provided with a step of performing pulse charge on the secondary battery, a step of detecting a change amount of a cell voltage associated with a change in the concentration polarization of the non-aqueous electrolyte as a polarization voltage, and a step of terminating the pulse charge when the polarization voltage increases to or above a predetermined threshold value. According to the present invention, it is possible to quickly charge the non-aqueous electrolyte secondary battery including the heat-resistant layer between the negative electrode and the positive electrode at such a borderline level as not to cause overcharge.
    • 本发明的目的是在负极和正极之间快速充电包含耐热层的非水电解质二次电池。 根据本发明的用于对包含负极和正极之间的耐热层的非水电解质二次电池进行充电的方法具有对二次电池进行脉冲充电的步骤,检测变化的步骤 与作为极化电压的非水电解质的浓度极化的变化相关联的电池电压的量以及当极化电压增加到或高于预定阈值时终止脉冲电荷的步骤。 根据本发明,可以在不会导致过充电的边界水平下,将包含负极和正极之间的耐热层的非水电解质二次电池快速充电。
    • 5. 发明授权
    • Deterioration determination circuit, power supply apparatus, and deterioration determination method of secondary battery
    • 二次电池劣化判定电路,供电装置和劣化判定方法
    • US08154299B2
    • 2012-04-10
    • US12493642
    • 2009-06-29
    • Takuma IidaAkihiro TaniguchiTakuya Nakashima
    • Takuma IidaAkihiro TaniguchiTakuya Nakashima
    • G01N27/416H02J7/00
    • G01R31/3679H01M10/345H01M10/425H01M10/4285H01M10/48
    • Provided is a deterioration determination circuit configured by including: an SOC detection unit for detecting an SOC of a secondary battery; an internal resistance detection unit for detecting an internal resistance value of the secondary battery; a first determination unit for determining the status of deterioration of the secondary battery based on the internal resistance value detected by the internal resistance detection unit when the SOC detected by the SOC detection unit is within a range of a pre-set first range; a second determination unit for determining the status of deterioration of the secondary battery based on the internal resistance value detected by the internal resistance detection unit when the SOC detected by the SOC detection unit is within a range of a pre-set second range as a range of an SOC, in which a variation of the internal resistance of the second battery in relation to a variation of the SOC of the secondary battery is different from the first range; and a final determination unit for ultimately determining that the secondary battery is deteriorated when the first determination unit determines that the secondary battery is of the deteriorated status and the second determination unit additionally determines that the secondary battery is of the deteriorated status.
    • 提供一种劣化判定电路,其包括:SOC检测单元,用于检测二次电池的SOC; 内部电阻检测单元,用于检测二次电池的内部电阻值; 第一确定单元,用于当由SOC检测单元检测到的SOC在预定的第一范围的范围内时,基于由内部电阻检测单元检测的内部电阻值来确定二次电池的劣化状态; 第二确定单元,用于当由SOC检测单元检测到的SOC在预定的第二范围的范围内时,基于由内部电阻检测单元检测到的内部电阻值来确定二次电池的劣化状态, 其中第二电池的内部电阻相对于二次电池的SOC的变化的变化与第一范围不同; 以及最终确定单元,用于当所述第一确定单元确定所述二次电池处于劣化状态并且所述第二确定单元另外确定所述二次电池处于劣化状态时,最终确定所述二次电池劣化。
    • 8. 发明申请
    • BATTERY INTERNAL SHORT-CIRCUIT DETECTING DEVICE AND METHOD, BATTERY PACK, AND ELECTRONIC DEVICE SYSTEM
    • 电池内部短路检测装置及方法,电池组及电子装置系统
    • US20100188054A1
    • 2010-07-29
    • US12670597
    • 2008-07-23
    • Jun AsakuraTakuya NakashimaToshiyuki NakatsujiMasato Fujikawa
    • Jun AsakuraTakuya NakashimaToshiyuki NakatsujiMasato Fujikawa
    • H02J7/04
    • H01M10/48G01R31/025G01R31/36H01M4/136H01M4/5825H01M10/482H02J7/0077
    • An internal short-circuit detecting device for detecting an internal short circuit of a battery being subjected to constant current charge using a constant current amount (I) has: a voltage detection unit for detecting a terminal voltage of the battery; a terminal voltage acquisition unit for acquiring a terminal voltage (V1), as predetermined by the voltage detection unit, at a starting point of a first period (ΔW1) and a terminal voltage (V2) at an ending point; a voltage increase amount calculation unit for calculating an actual increase amount (ΔV3) of the terminal voltage of the first period (ΔW1) from the terminal voltages (V1 and V2); a voltage increase amount prediction unit for calculating a predicted increase amount (ΔV4) of the terminal voltage for the period when charging is performed using the current amount (I) for the first period (ΔW1); and an internal short-circuit determination unit for determining that the internal short circuit is generated when the actual increase amount (ΔV3) is equal to or lower than the sum of the predicted increase amount (ΔV4) and a predetermined coefficient (α).
    • 用于检测使用恒定电流量(I)进行恒定电流充电的电池的内部短路的内部短路检测装置具有:电压检测单元,用于检测电池的端子电压; 端子电压获取单元,用于在终点处的第一周期(&Dgr; W1)和端子电压(V2)的起始点处获取由电压检测单元预定的端子电压(V1); 电压增加量计算单元,用于根据端子电压(V1和V2)计算第一周期(&Dgr; W1)的端子电压的实际增加量(&Dgr; V3); 电压增加量预测单元,用于计算使用第一时段(&Dgr; W1)的当前量(I)进行充电时的终端电压的预测增加量(&Dgr; V4); 以及当所述实际增加量(&Dgr; V3)等于或小于所述预测增加量(&Dgr; V4)和预定系数(&Dgr; V4)的和时,确定产生所述内部短路的内部短路确定单元) α)。
    • 9. 发明申请
    • NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY CHARGING METHOD, ELECTRONIC DEVICE, BATTERY PACK, AND CHARGING DEVICE
    • 非水电解质二次电池充电方法,电子设备,电池组和充电装置
    • US20100072951A1
    • 2010-03-25
    • US12519287
    • 2007-12-11
    • Takuya Nakashima
    • Takuya Nakashima
    • H02J7/04
    • H01M2/16H01M10/44H02J7/0093
    • The present invention aims to quickly charge a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode. A method according to the present invention for charging a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode is provided with a step of performing pulse charge on the secondary battery, a step of detecting a change amount of a cell voltage associated with a change in the concentration polarization of the non-aqueous electrolyte as a polarization voltage, and a step of terminating the pulse charge when the polarization voltage increases to or above a predetermined threshold value. According to the present invention, it is possible to quickly charge the non-aqueous electrolyte secondary battery including the heat-resistant layer between the negative electrode and the positive electrode at such a borderline level as not to cause overcharge.
    • 本发明的目的是在负极和正极之间快速充电包含耐热层的非水电解质二次电池。 根据本发明的用于对包含负极和正极之间的耐热层的非水电解质二次电池进行充电的方法具有对二次电池进行脉冲充电的步骤,检测变化的步骤 与作为极化电压的非水电解质的浓度极化的变化相关联的电池电压的量以及当极化电压增加到或高于预定阈值时终止脉冲电荷的步骤。 根据本发明,可以在不会导致过充电的边界水平下,将包含负极和正极之间的耐热层的非水电解质二次电池快速充电。