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Title:
二次電池および二次電池の制御方法
Document Type and Number:
Japanese Patent JP6753510
Kind Code:
B2
Abstract:
Provided is a secondary battery with which any temperature increase in a power generation element of the battery can be minimized even when a conductor enters the power generation element. A secondary battery (1) comprises: a power generation element (100) having a unit cell layer (14b) in which a positive electrode (12), a separator (15), and a negative electrode (13) are stacked in the stated order; an electroconductive member (32) disposed on one outward side of the power generation element (100) with an insulation member (31) interposed therebetween; a lead wire (33) connecting the electroconductive member (32) with a negative electrode tab (17a); a coil (41) that detects whether or not current is flowing to the lead wire (33); and an external discharge safety circuit (36) provided with a switch (42) that short-circuits a positive electrode tab (16a) and the negative electrode tab (17a) outside the power generation element (100) when the coil (41) has detected current.

Inventors:
Iwataro Kano
Atsushi Horai
Kazuki Arihara
Ichi Sato
Yasuhiko Osawa
Ryoichi Senkitaya
Nakamon Masaki
Eiji Minegishi
Application Number:
JP2019502424A
Publication Date:
September 09, 2020
Filing Date:
March 03, 2017
Export Citation:
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Assignee:
Nissan Motor Co., Ltd
International Classes:
H01M10/04; H01M10/42; H01M10/48; H01M50/178; H01M50/548; H01M50/553; H01M50/569; H01M50/586; H01M50/593; H02H7/18; H02J7/00
Domestic Patent References:
JP2015156323A
JP2013543644A
JP2002142353A
JP2015526842A
JP11191436A
Foreign References:
KR1020140066364A
Attorney, Agent or Firm:
Hatta International Patent Corporation