Patent · US Active

Non-aqueous electrolyte for secondary battery and non-aqueous electrolyte secondary battery

US8097368B2 · kind B2 · utility

8Cited by
3References
24Claims
0Family size

Assignees

Inventors

Key dates

Filing dateJul 22, 2009
Grant dateJan 17, 2012
Priority date
Expiry dateOct 2, 2029

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The present invention provides a non-aqueous electrolyte secondary battery comprising a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, wherein the non-aqueous electrolyte comprises a non-aqueous solvent and lithium salt as an electrolyte, and wherein the non-aqueous solvent contains chain fluorinated carboxylic acid ester represented by the formula CH3COOCH2CH3-xFx (wherein x is 2 or 3) and a film forming chemical decomposed in the range of +1.0 to 3.0 V based on an equilibrium potential between metal lithium and lithium ion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.