Polymer separator for a lithium battery
US7642012B2 · kind B2 · utility
19Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2005 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | May 12, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A separator for a battery in lithium. The separator is a thick membrane, of around 60 to 120 μm in polyvinylidene fluoride copolymer, which has considerable porosity, of around 50 to 90%, with pores of size between 1 and 10 μm. With these characteristics, it is possible to optimize the operation of a battery with an electrode in, e.g., Li4Ti5O12, in particular for rapid charges and discharges, in other words in power applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.