US 12,278,364 B2
Battery cell, battery, and electrical device
Cuiping Zhang, Ningde (CN); Changlong Han, Ningde (CN); and Zhe Zhang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Oct. 31, 2024, as Appl. No. 18/933,920.
Application 18/933,920 is a continuation of application No. PCT/CN2023/105973, filed on Jul. 5, 2023.
Claims priority of application No. 202210854949.2 (CN), filed on Jul. 19, 2022.
Prior Publication US 2025/0062335 A1, Feb. 20, 2025
Int. Cl. H01M 4/505 (2010.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 50/103 (2021.01); H01M 50/202 (2021.01); H01M 4/02 (2006.01)
CPC H01M 4/505 (2013.01) [H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 50/103 (2021.01); H01M 50/202 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0028 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A battery cell, comprising:
a housing, in which an accommodation cavity is formed;
an electrode assembly, disposed in the accommodation cavity; and
an electrolyte solution, disposed in the accommodation cavity;
wherein an electrolyte retention coefficient a and a packing fraction b of the battery cell satisfy following relationship: 2≤a/b≤3, and the electrolyte retention coefficient a is in units of g/Ah.