US 12,244,034 B2
Buffer member and electrical storage module
Shota Norimine, Osaka (JP); Goro Fujita, Osaka (JP); Tetsuji Omura, Hyogo (JP); Mitsutoshi Tajima, Hyogo (JP); and Shingo Kume, Osaka (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Appl. No. 17/633,370
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Aug. 19, 2020, PCT No. PCT/JP2020/031345
§ 371(c)(1), (2) Date Feb. 7, 2022,
PCT Pub. No. WO2021/039549, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 2019-158288 (JP), filed on Aug. 30, 2019.
Prior Publication US 2022/0294069 A1, Sep. 15, 2022
Int. Cl. H01M 50/291 (2021.01); H01G 11/12 (2013.01); H01G 11/78 (2013.01); H01M 10/04 (2006.01); H01M 50/209 (2021.01); H01M 50/236 (2021.01); H01M 50/238 (2021.01); H01M 50/242 (2021.01); H01M 50/264 (2021.01); H01M 50/293 (2021.01); H01M 50/296 (2021.01)
CPC H01M 50/291 (2021.01) [H01G 11/12 (2013.01); H01G 11/78 (2013.01); H01M 10/0481 (2013.01); H01M 50/209 (2021.01); H01M 50/236 (2021.01); H01M 50/238 (2021.01); H01M 50/242 (2021.01); H01M 50/264 (2021.01); H01M 50/293 (2021.01); H01M 50/296 (2021.01)] 11 Claims
OG exemplary drawing
 
1. An electrical storage module comprising:
one or more electrical storage devices; and
a buffer member that is arrayed in a first direction together with the one or more electrical storage devices and receives a load in the first direction from a corresponding one of the one or more electrical storage devices, wherein:
the buffer member includes
a soft part,
a hard part positioned closer to an outer edge part of the buffer member than the soft part, and
a convex part protruding toward the corresponding one of the one or more electrical storage devices,
the soft part is more easily deformed than the hard part,
as viewed in the first direction, a ratio of an area of the convex part to an area of the soft part is smaller than a ratio of an area of the convex part to an area of the hard part,
the buffer member includes a plurality of convex parts each being the convex part, and
the plurality of convex parts are arrayed to radially expand, and include an area that increases toward an outside of a radiation.