SEALED SECONDARY BATTERY
First Claim
1. A sealed secondary battery, comprising:
- a plurality of cylindrical electrode assemblies sealed in a battery casing, each of the electrode assemblies being formed by winding a positive electrode plate and a negative electrode with a separator interposed therebetween,wherein the battery casing includes,a plurality of cylindrical accommodation parts configured to accommodate the plurality of electrode assemblies, anda connecting part configured to connect the accommodation parts adjacent to each other,the accommodation parts have inner circumferences having a substantially same shape as that of outer circumferences of the electrode assemblies, andthe connecting part is formed along side surfaces of the accommodation parts.
1 Assignment
0 Petitions
Accused Products
Abstract
A battery casing 10 includes a plurality of cylindrical accommodation parts 12a to 12d accommodating a plurality of electrode assemblies 20, and connecting parts 13a to 13c connecting the accommodation parts 12a to 13d adjacent to each other. The inner circumferences of the accommodation parts 12a to 12d have substantially the same shape as the outer circumferences of the electrode assemblies. The connecting parts 13a to 13c are formed along the side surfaces of the accommodation parts 12a to 12d. Each electrode assembly 20 is formed by winding a positive electrode plate 21 and a negative electrode plate 22 with a separator 23 interposed therebetween to be in a cylindrical shape. The plurality of electrode assemblies 20 are accommodated in the accommodation parts 12a to 12d with substantially no gap left.
13 Citations
7 Claims
-
1. A sealed secondary battery, comprising:
- a plurality of cylindrical electrode assemblies sealed in a battery casing, each of the electrode assemblies being formed by winding a positive electrode plate and a negative electrode with a separator interposed therebetween,
wherein the battery casing includes, a plurality of cylindrical accommodation parts configured to accommodate the plurality of electrode assemblies, and a connecting part configured to connect the accommodation parts adjacent to each other, the accommodation parts have inner circumferences having a substantially same shape as that of outer circumferences of the electrode assemblies, and the connecting part is formed along side surfaces of the accommodation parts. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a plurality of cylindrical electrode assemblies sealed in a battery casing, each of the electrode assemblies being formed by winding a positive electrode plate and a negative electrode with a separator interposed therebetween,
Specification