US 9,812,731 B2
Battery module
Shigeki Kayano, Kanagawa (JP); and Yui Suzuki, Kanagawa (JP)
Assigned to Nissan Motor Co., Ltd., Yokohama (JP)
Appl. No. 15/113,102
Filed by Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa (JP)
PCT Filed Feb. 12, 2014, PCT No. PCT/JP2014/053202
§ 371(c)(1), (2) Date Jul. 21, 2016,
PCT Pub. No. WO2015/121926, PCT Pub. Date Aug. 20, 2015.
Prior Publication US 2017/0012315 A1, Jan. 12, 2017
Int. Cl. H01M 10/052 (2010.01); H01M 10/04 (2006.01); H01M 2/10 (2006.01); H01M 2/34 (2006.01); H01M 10/0585 (2010.01)
CPC H01M 10/0481 (2013.01) [H01M 2/1016 (2013.01); H01M 2/1077 (2013.01); H01M 2/34 (2013.01); H01M 10/0413 (2013.01); H01M 10/0436 (2013.01); H01M 10/052 (2013.01); H01M 10/0585 (2013.01); H01M 2200/00 (2013.01); H01M 2220/20 (2013.01); Y02E 60/122 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery module comprising:
an individual cell configured with a power generating element having a positive electrode and a negative electrode stacked with a separator therebetween and sealed by a cladding material; and
a housing including a pair of cases that sandwich the individual cell from two sides in a stacking direction and a reinforcing member having a plate shape that is joined to and reinforces one of the cases,
at least one of the cases comprising:
a bulging portion curving and protruding toward the individual cell, and pressing the individual cell,
a first extension portion extending from an outer periphery of the bulging portion in a transverse direction with respect to the stacking direction,
an inclined portion extending from an outer periphery of the first extension portion while sloping toward the individual cell, and
a second extension portion extending from an outer periphery of the inclined portion along a transverse direction with respect to the stacking direction, the second extension portion being joined to the reinforcing member.