Lithium rechargeable battery including a porous membrane separator formed of ceramic secondary particles and a binder
US7659036B2 · kind B2 · utility
9Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2006 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Dec 14, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium rechargeable battery includes a separator that shows excellent safety characteristics such as short circuit resistance and heat resistance. The lithium rechargeable battery includes a cathode, an anode, a separator that separates the cathode and the anode from each other, and a non-aqueous electrolyte, wherein the separator includes a porous membrane formed of a ceramic material and a binder, and wherein the binder includes at least one crystalline resin having a crystal melting temperature of 250° C. or higher or at least one non-crystalline resin having an initial decomposition temperature of 250° C. or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.