US 11,955,657 B2
Battery, powered device, method for preparing battery, and device for preparing battery
Yu Tang, Ningde (CN); Haiqi Yang, Ningde (CN); Zhimin Zeng, Ningde (CN); Peng Wang, Ningde (CN); and Xiaoteng Huang, Ningde (CN)
Assigned to Contemporary Amperex Technology Co., Limited, Ningde (CN)
Filed by Contemporary Amperex Technology Co., Limited, Ningde (CN)
Filed on Sep. 25, 2022, as Appl. No. 17/935,130.
Application 17/935,130 is a continuation of application No. PCT/CN2021/109403, filed on Jul. 29, 2021.
Prior Publication US 2023/0030782 A1, Feb. 2, 2023
Int. Cl. H01M 50/367 (2021.01); H01M 50/289 (2021.01); H01M 50/342 (2021.01)
CPC H01M 50/3425 (2021.01) [H01M 50/289 (2021.01); H01M 2220/20 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A battery, comprising:
a first battery cell and a second battery cell, wherein a pressure relief mechanism of the first battery cell and a pressure relief mechanism of the second battery cell are arranged opposite to each other in a first direction;
a box body accommodating the first battery cell and the second battery cell; and
a partition component configured to partition the first battery cell and the second battery cell in the first direction, wherein
the partition component includes a first wall and a second wall arranged opposite to each other, wherein the first wall is provided with a first through hole, the second wall is provided with a second through hole, the first through hole being configured to guide emissions discharged from the pressure relief mechanism of the first battery cell, and the second through hole being configured to guide emissions discharged from the pressure relief mechanism of the second battery cell,
a first guard member is attached to the first wall, the first guard member having a first weak portion arranged opposite to the first through hole,
a second guard member is attached to the second wall, the second guard member having a second weak portion arranged opposite to the second through hole; and,
wherein in a cross section perpendicular to the first direction, the area of the first weak portion is greater than that of the first through hole, and the area of the second weak portion is greater than that of the second through hole.