Electrolyte for high voltage lithium rechargeable battery and high voltage lithium rechargeable battery employing the same
US7655361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2007 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Aug 6, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Aspects of the present invention relate to an electrolyte for a high voltage lithium rechargeable battery and a high voltage lithium rechargeable battery employing the electrolyte, and more particularly to an electrolyte for a high voltage lithium rechargeable battery comprising a non-aqueous organic solvent; a lithium salt; and a combination of a halogenated biphenyl and a dihalogenated toluene used as an additive where the combined additive has an oxidation reduction potential of 4.6 to 5.0 V with respect to lithium. The lithium rechargeable battery employing the electrolyte for a high voltage lithium rechargeable battery achieves overcharge stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.