Lithium secondary battery
US8062789B2 · kind B2 · utility
10Cited by
7References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2006 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium secondary battery including a positive electrode, a negative electrode, a separator for separating the positive and negative electrodes, and a non-aqueous electrolyte. The separator includes a porous film formed of a mixture of a ceramic material and a binder, and the binder is formed of acrylic rubber having a three-dimensional crosslink structure. The separator provides excellent safety characteristics such as resistance to a short circuit and thermal resistance. Also, the separator improves a high-rate discharge characteristics and increases the life span.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.