US 12,315,904 B2
Battery system having a passive heat sink
Kem M. Obasih, Brookfield, WI (US); Richard M. DeKeuster, Racine, WI (US); Daniel B. Le, Grafton, WI (US); Xugang Zhang, Shorewood, WI (US); Christian Kuper, Barsinghausen (DE); Nicholas E Elison, Mequon, WI (US); and Jason D. Fuhr, Sussex, WI (US)
Assigned to CPS Technology Holdings LLC, New York, NY (US); and Clarios Advanced Solutions GmbH, Hannover (DE)
Appl. No. 17/428,576
Filed by CPS Technology Holdings LLC, New York, NY (US); and Clarios Advanced Solutions GmbH, Hannover (DE)
PCT Filed Feb. 7, 2020, PCT No. PCT/US2020/017125
§ 371(c)(1), (2) Date Aug. 4, 2021,
PCT Pub. No. WO2020/163665, PCT Pub. Date Aug. 13, 2020.
Claims priority of provisional application 62/803,026, filed on Feb. 8, 2019.
Prior Publication US 2022/0109200 A1, Apr. 7, 2022
Int. Cl. H01M 10/6554 (2014.01); H01M 10/625 (2014.01); H01M 50/204 (2021.01); H01M 50/209 (2021.01); H01M 50/227 (2021.01); H01M 50/278 (2021.01); H01M 50/296 (2021.01)
CPC H01M 10/6554 (2015.04) [H01M 10/625 (2015.04); H01M 50/204 (2021.01); H01M 50/209 (2021.01); H01M 50/227 (2021.01); H01M 50/278 (2021.01); H01M 50/296 (2021.01)] 15 Claims
OG exemplary drawing
 
1. A battery system, comprising:
a housing configured to receive a plurality of battery cells arranged in adjacent cell stacks that are configured to generate thermal energy, the housing comprising a first wall and a second wall, both of which are positioned proximate to the plurality of battery cells, and a first thickness and a second thickness with the second thickness being greater than the first thickness, the first wall and the second wall forming in part a cell compartment; and
a unitary heat sink comprising:
a first portion embedded into the first wall and a second portion embedded into the second wall, the first portion being completely embedded into the first wall and the second portion being partially embedded into the second wall;
the first portion comprising a first surface on a first side of the first portion and a second surface on a second opposite side of the first portion, with the first thickness between the first surface and an exterior surface of the first wall and the second thickness between the second surface and an interior surface of the first wall;
a first cell section corresponding to one of the cell stacks and a second cell section corresponding to another of the cell stacks; and
a plurality of bridges extending between the first cell section and the second cell section.