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1. (WO2015121926) BATTERY MODULE

Pub. No.:    WO/2015/121926    International Application No.:    PCT/JP2014/053202
Publication Date: Fri Aug 21 01:59:59 CEST 2015 International Filing Date: Thu Feb 13 00:59:59 CET 2014
IPC: H01M 2/10
H01M 2/34
Applicants: NISSAN MOTOR CO., LTD.
日産自動車株式会社
Inventors: KAYANO, Shigeki
萱野 茂樹
SUZUKI, Yui
鈴木 由衣
Title: BATTERY MODULE
Abstract:
[Problem] To provide a battery module that is capable of pressing single batteries sufficiently while improving the stiffness of the case. [Solution] Each of the single cells (110) of the battery module (100) comprises a power generating element (10) sealed by a cladding material. A battery module housing (120) is provided with a pair of cases (121) and reinforcing members (122, 123). The pair of cases sandwiches the single cells from two sides in the layering direction (Z). The reinforcing members are formed so as to have a plate shape, and are joined to each of the cases to reinforce the case. A swelling portion (121a) of the case is formed so as to be curved and protrude toward the single cells and press the single cells. A first extension portion (121b) of the case is formed so as to extend from the outer periphery of the swelling portion and follow a direction that intersects with the layering direction. A slanted portion (121c) of the case is formed so as to extend from the outer periphery of the first extension portion while bending toward the single cells. A second extension portion (121d) of the case extends from the outer periphery of the slanted portion so as to follow a direction that intersects with the layering direction and is joined to the reinforcing member.