OVERCURRENT DETECTION DEVICE, ENERGY STORAGE APPARATUS, AND CURRENT DETECTION METHOD

    公开(公告)号:US20180062371A1

    公开(公告)日:2018-03-01

    申请号:US15674644

    申请日:2017-08-11

    Inventor: Masayuki IMURA

    Abstract: An overcurrent detection device including: a current detection resistor that is connected in series to a main circuit and is configured to cause a potential difference at both ends according to a current flowing through the main circuit; a current detection circuit that includes a pair of connection portions and is configured to detect a potential difference between the pair of connection portions; a pair of voltage detection lines connecting the both ends of the current detection resistor to the pair of connection portions in the current detection circuit; and an erroneous detection prevention unit configured to prevent an increase in the potential difference between the pair of connection portions when at least any one of the pair of voltage detection lines has a connection failure.

    Electric storage module
    415.
    发明授权

    公开(公告)号:US09876202B2

    公开(公告)日:2018-01-23

    申请号:US14243824

    申请日:2014-04-02

    Abstract: Provided is an electric storage module including an electric storage device and an outer package member that covers the electric storage device. The outer package member has a main body that covers the electric storage device and a cable fixing portion provided on an outer surface of the main body of the outer package member. The cable fixing portion has a plurality of insertion holes through which a binding member or a cable can be inserted.

    ENERGY STORAGE DEVICE
    416.
    发明申请

    公开(公告)号:US20180013123A1

    公开(公告)日:2018-01-11

    申请号:US15547411

    申请日:2016-03-30

    Inventor: Shun ITO

    Abstract: An energy storage device includes: an electrode assembly; a positive electrode current collector and a negative electrode current collector connected to the electrode assembly; and a container configured to house the electrode assembly and the positive electrode current collector and the negative electrode current collector, wherein the container has recessed portions, a connecting portion of the positive electrode current collector and a connecting portion of the negative electrode current collector respectively connected to the electrode assembly are housed in the recessed portions, respectively, the electrode assembly has a tab portion which includes a connecting portion connected to the positive electrode current collector and a tab portion which includes a connecting portion connected to the negative electrode current collector, and the tab portions have a bent portion respectively.

    MANAGEMENT DEVICE FOR SECONDARY BATTERY, AND METHOD OF MANAGING SECONDARY BATTERY

    公开(公告)号:US20170371000A1

    公开(公告)日:2017-12-28

    申请号:US15526982

    申请日:2015-11-13

    Abstract: A management device manages a secondary battery which includes a positive electrode having an active material with a characteristic where a potential flat portion exists in a relationship between a capacity and a potential. The management device includes a management unit which detects an occurrence of temporary degradation of the secondary battery when an SOC correlation associated value which is associated with an SOC of the secondary battery is acquired and the SOC which corresponds to the acquired SOC correlation associated value is equal to or less than a preset prescribed SOC or when a state value relating to a voltage of the secondary battery is acquired and a magnitude relationship between the acquired state value relating to the voltage of the secondary battery and a preset threshold value satisfies a predetermined condition.

    ENERGY STORAGE DEVICE
    418.
    发明申请

    公开(公告)号:US20170365839A1

    公开(公告)日:2017-12-21

    申请号:US15534462

    申请日:2015-12-11

    Inventor: Kenji KAWATE

    Abstract: An energy storage device (battery) includes an electrode assembly having current collecting tabs, each of which is formed of a plurality of projecting portions, projecting from a first straight line portion on one side in a stacking direction of electrode sheets. The electrode assembly is housed in a case (exterior body). The energy storage device further includes current collectors, which are electrically connected to the external terminals, disposed on the case. The current collectors, are connected to the current collecting tabs, arranged in a stacking direction of the electrode sheets, on a second straight line portion side where the projecting portions, are not formed.

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