US 11,670,814 B2
Electricity storage block and electricity storage module
Osamu Kubota, Tokyo (JP); Akira Sato, Tokyo (JP); Kazunori Ojima, Hitachinaka (JP); and Sadayuki Aoki, Hitachinaka (JP)
Assigned to VEHICLE ENERGY JAPAN, INC., Ibaraki (JP)
Filed by Vehicle Energy Japan Inc., Hitachinaka (JP)
Filed on Dec. 26, 2017, as Appl. No. 15/854,297.
Application 15/854,297 is a continuation of application No. 14/895,665, granted, now 9,887,440, previously published as PCT/JP2014/064048, filed on May 28, 2014.
Claims priority of application No. 2013-119729 (JP), filed on Jun. 6, 2013.
Prior Publication US 2018/0123199 A1, May 3, 2018
Int. Cl. H01M 10/6556 (2014.01); H01M 10/613 (2014.01); H01M 10/647 (2014.01); H01M 10/6555 (2014.01); H01M 10/04 (2006.01); H01M 10/625 (2014.01); H01M 50/209 (2021.01)
CPC H01M 10/6556 (2015.04) [H01M 10/0481 (2013.01); H01M 10/0486 (2013.01); H01M 10/613 (2015.04); H01M 10/647 (2015.04); H01M 10/6555 (2015.04); H01M 10/625 (2015.04); H01M 50/209 (2021.01); H01M 2220/20 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An electricity storage module, comprising:
a plurality of square electricity storage elements, wherein each of the plurality of square electricity storage elements has a pair of wide surfaces each including a first wide surface and a pair of narrow surfaces each including a first narrow surface;
a plurality of holder members, where each of the plurality of holder members is arranged between one of the pair of wide surfaces of a first square electricity storage element of the plurality of square electricity storage elements and one of the pair of wide surfaces of a second square electricity storage elements of the plurality of square electricity storage elements,
wherein each of the plurality of the holder members has:
a first wide surface abutment part in abutment with the first wide surface of the first square electricity storage element,
a convex fitting,
a concave fitting that is fitted to the convex fitting of an adjacent holder among the plurality of holder members, and
a second wide surface abutment part in abutment with the first wide surface of the second square electricity storage element;
a heat transfer sheet that contacts the first narrow surface of each plurality of square electricity storage elements;
a plate member that contacts the heat transfer sheet, wherein:
the first narrow surface of each of the plurality of square electricity storage elements protrudes towards the heat transfer sheet more than a surface of a respective holder member opposite the first wide surface by a protrusion length (h1), and
a thickness (ts) of the heat transfer sheet that is before each of the plurality of square electricity storage elements is mounted onto the heat transfer sheet, is equal to or smaller than the protrusion length (h1).