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    • 41. 发明申请
    • BATTERY SYSTEM
    • 电池系统
    • US20120133329A1
    • 2012-05-31
    • US13388601
    • 2010-08-04
    • Hiroaki YoshidaHiroshi Kawamura
    • Hiroaki YoshidaHiroshi Kawamura
    • H02J7/00
    • H02J7/0016H01M10/441H01M10/443H01M10/615H01M10/625H01M10/6571H02J7/0026
    • A battery system is provided that can prevent overcharging during charging, and that can demonstrate appropriate charging performance and output performance of a secondary battery even when the battery system is used in a low-temperature environment. The battery system includes a secondary battery and a protection circuit. The protection circuit includes a bypass electrical path that connects an upstream-side main electrical path that is connected to a positive terminal of the secondary battery to a downstream-side main electrical path that is connected to a negative terminal of the secondary battery. The battery system is configured so that, when the voltage of the secondary battery exceeds a predetermined voltage during charging, current flowing through the secondary battery decreases while current flowing through the bypass electrical path increases, and when the voltage of the secondary battery falls below the predetermined voltage during charging, the current flowing through the secondary battery increases while the current flowing through the bypass electrical path decreases. The bypass electrical path includes a heater that generates heat using the current flowing through the bypass electrical path, and the heater is arranged adjacent to or in close contact with the secondary battery so as to impart a thermal effect to the secondary battery.
    • 提供一种电池系统,其可以防止在充电期间的过充电,并且即使在低温环境中使用电池系统的情况下也可以证明适当的充电性能和二次电池的输出性能。 电池系统包括二次电池和保护电路。 保护电路包括将连接到二次电池的正极端子的上游侧主电路与连接到二次电池的负极端子的下游侧主电路连接的旁路电路。 电池系统被配置为使得当充电期间二次电池的电压超过预定电压时,流过二次电池的电流随着流过旁路电路的电流增加而减小,并且当二次电池的电压下降到低于 在充电期间的预定电压,流过二次电池的电流增加,同时流过旁路电路的电流减小。 旁路电路包括使用流过旁路电路的电流产生热的加热器,并且加热器被布置为与二次电池相邻或紧密接触,以便赋予二次电池热效应。