US 12,113,227 B2
Cell, power battery pack, and electric vehicle
Long He, Shenzhen (CN); Huajun Sun, Shenzhen (CN); Wenfeng Jiang, Shenzhen (CN); Zhipei Lu, Shenzhen (CN); Weixin Zheng, Shenzhen (CN); Jianglong Tang, Shenzhen (CN); Yan Zhu, Shenzhen (CN); Xinyue Wang, Shenzhen (CN); and Kefeng He, Shenzhen (CN)
Assigned to BYD COMPANY LIMITED, Shenzhen (CN)
Appl. No. 17/422,084
Filed by BYD COMPANY LIMITED, Guangdong (CN)
PCT Filed Jun. 21, 2019, PCT No. PCT/CN2019/092349
§ 371(c)(1), (2) Date Jul. 9, 2021,
PCT Pub. No. WO2020/143171, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 201910020925.5 (CN), filed on Jan. 9, 2019; application No. 201910020967.9 (CN), filed on Jan. 9, 2019; application No. 201910021244.0 (CN), filed on Jan. 9, 2019; application No. 201910021246.X (CN), filed on Jan. 9, 2019; application No. 201910021247.4 (CN), filed on Jan. 9, 2019; and application No. 201910021248.9 (CN), filed on Jan. 9, 2019.
Prior Publication US 2022/0102787 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 50/209 (2021.01); B60K 1/04 (2019.01); B60L 50/60 (2019.01); B60L 50/64 (2019.01); H01M 10/052 (2010.01); H01M 10/42 (2006.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/647 (2014.01); H01M 10/6551 (2014.01); H01M 10/6554 (2014.01); H01M 50/103 (2021.01); H01M 50/119 (2021.01); H01M 50/244 (2021.01); H01M 50/249 (2021.01); H01M 50/271 (2021.01); H01M 50/317 (2021.01); H01M 50/342 (2021.01); H01M 50/35 (2021.01); H01M 50/383 (2021.01); H01M 50/531 (2021.01); H01M 50/543 (2021.01); B60L 58/26 (2019.01)
CPC H01M 50/209 (2021.01) [B60K 1/04 (2013.01); B60L 50/64 (2019.02); B60L 50/66 (2019.02); H01M 10/052 (2013.01); H01M 10/425 (2013.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/647 (2015.04); H01M 10/6551 (2015.04); H01M 10/6554 (2015.04); H01M 50/103 (2021.01); H01M 50/119 (2021.01); H01M 50/244 (2021.01); H01M 50/249 (2021.01); H01M 50/271 (2021.01); H01M 50/317 (2021.01); H01M 50/342 (2021.01); H01M 50/3425 (2021.01); H01M 50/35 (2021.01); H01M 50/383 (2021.01); H01M 50/531 (2021.01); H01M 50/543 (2021.01); B60K 2001/0405 (2013.01); B60K 2001/0438 (2013.01); B60L 58/26 (2019.02); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A power battery pack, comprising:
a housing; and
a plurality of cells provided in the housing, wherein each of the cells comprises:
a cell body, having a length L, a width H and a thickness D, the length L of the cell body being greater than the width H, and the width H of the cell body being greater than the thickness D, wherein the length L of the cell body is greater than 600 mm; the cell body has a volume V of greater than or equal to 953,750 mm3; and the length L and the width H of the cell body satisfy L/H=4-21, and the cell is a prismatic cell with an aluminum casing,
wherein the cells have a total volume V1, the power battery pack has a volume V2, and V1/V2 is equal to or greater than 55%.