US 12,034,140 B2
Battery module, battery pack comprising same, and vehicle
Sang-Il Son, Daejeon (KR); Ha-Neul Yoo, Daejeon (KR); Yun-Ki Choi, Daejeon (KR); and Jong-Soo Ha, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 15/779,777
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jan. 16, 2017, PCT No. PCT/KR2017/000532
§ 371(c)(1), (2) Date May 29, 2018,
PCT Pub. No. WO2017/150802, PCT Pub. Date Sep. 8, 2017.
Claims priority of application No. 10-2016-0025737 (KR), filed on Mar. 3, 2016.
Prior Publication US 2019/0288357 A1, Sep. 19, 2019
Int. Cl. H01M 10/6568 (2014.01); B60L 50/64 (2019.01); H01M 10/613 (2014.01); H01M 10/617 (2014.01); H01M 10/625 (2014.01); H01M 10/647 (2014.01); H01M 10/6551 (2014.01); H01M 10/6554 (2014.01); H01M 10/6555 (2014.01); H01M 10/6556 (2014.01); H01M 50/211 (2021.01); H01M 50/249 (2021.01)
CPC H01M 10/6568 (2015.04) [B60L 50/64 (2019.02); H01M 10/613 (2015.04); H01M 10/617 (2015.04); H01M 10/625 (2015.04); H01M 10/647 (2015.04); H01M 10/6551 (2015.04); H01M 10/6554 (2015.04); H01M 10/6555 (2015.04); H01M 10/6556 (2015.04); H01M 50/211 (2021.01); H01M 50/249 (2021.01); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01); Y02T 10/70 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A battery module comprising:
a cartridge comprising an accommodation space therein;
a plurality of battery cells placed in the accommodation space;
a cooling unit configured to cool the battery cells; and
a heat exchange unit configured to exchange heat with the cooling unit,
wherein the cooling unit comprises:
a cooling fin making surface contact with sides of the battery cells; and
a cooling plate making contact with the cooling fin,
wherein the heat exchange unit comprises:
a heat exchange chamber comprising an inner space;
a lower cooling flow path located in the heat exchange chamber and through which a cooling fluid flows;
a supply pipe configured to supply the cooling fluid to the lower cooling flow path;
an upper cooling flow path located above the lower cooling flow path and through which the cooling fluid supplied from the lower cooling flow path flows;
a discharge pipe configured to discharge the cooling fluid outward from the upper cooling flow path; and
a plurality of connection flow paths configured to supply the cooling fluid flowing in the lower cooling flow path to the upper cooling flow path,
wherein the inner space of the heat exchange chamber comprises an upstream region adjacent to the supply pipe and a downstream region adjacent to the discharge pipe,
wherein the upstream region includes a portion of each of the lower flow path and the upper flow path and the downstream region includes a remainder of each of the lower flow path and the upper flow path, and
wherein the number of connection flow paths located in the downstream region is greater than the number of connection flow paths located in the upstream region such that the connection flow paths in the downstream region are closer to each other than the connection flow paths in the upstream region are to each other, and the number of connection flow paths in the upstream region is at least one.