Electrochemical cells having spirally wound electrode assemblies
US4963445A · kind A · utility
13Cited by
6References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | May 8, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spirally wound electrode assembly for use in electrochemical cells has an outer anode layer and an electrically insulating and ionically impermeable overwrap film disposed about the assembly. The outer anode layer has a tab located thereon. The overwrap film is inserted into the assembly between the end of the cathode layer and one of the anode layers. Upon forced discharge of the cell, the portion of the anode with the tab is disconnected in a fuse-like manner from the remainder of the anode, and the circuit is thereby broken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.