US 12,347,894 B2
Tank, battery cell, battery, and electrical device
Jingxuan Sun, Ningde (CN); Jianfu He, Ningde (CN); Yonghuang Ye, Ningde (CN); Qian Liu, Ningde (CN); Xueyang Sun, Ningde (CN); and Xiaofu Xu, 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 Sep. 6, 2022, as Appl. No. 17/903,677.
Application 17/903,677 is a continuation of application No. PCT/CN2021/114640, filed on Aug. 26, 2021.
Prior Publication US 2023/0068186 A1, Mar. 2, 2023
Int. Cl. H01M 50/682 (2021.01); H01M 50/143 (2021.01); H01M 50/317 (2021.01); H01M 50/383 (2021.01); H01M 50/618 (2021.01)
CPC H01M 50/682 (2021.01) [H01M 50/143 (2021.01); H01M 50/317 (2021.01); H01M 50/383 (2021.01); H01M 50/618 (2021.01); H01M 2220/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A capsule, comprising:
two membranes arranged in the capsule and configured to partition an interior of the capsule into a plurality of independent accommodation cavities, the plurality of independent accommodation cavities comprising a first accommodation cavity, a second accommodation cavity, and a third accommodation cavity; and
a plurality of fragile structures comprising a first fragile structure, a second fragile structure, and a third fragile structure, a packaging strength of the first fragile structure being greater than a packaging strength of the second fragile structure, the packaging strength of the second fragile structure being greater than a packaging strength of the third fragile structure, each of the plurality of independent accommodation cavities corresponding to one of the plurality of fragile structures;
wherein;
along a length direction of the capsule, a first part of a first capsule wall, the first fragile structure, a second part of the first capsule wall, a first part of a second capsule wall, the second fragile structure, a second part of the second capsule wall, a first part of a third capsule wall, the third fragile structure, and a second part of the third capsule wall are disposed on a side of the capsule in sequence;
a thickness of the first capsule wall, a thickness of the second capsule wall, and a thickness of the third capsule wall are greater than a thickness of the first fragile structure and greater than a thickness of each of the two membranes;
the thickness of the first fragile structure is greater than a thickness of the second fragile structure, the thickness of the second fragile structure is greater than a thickness of the third fragile structure; and
the first fragile structure, the second fragile structure, and the third fragile structure correspond to the first accommodation cavity, the second accommodation cavity, and the third accommodation cavity, respectively.