Patent · US Active

Lithium primary cell

US8980480B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

Spectrum Brands, Inc. · US

Inventors

M. Edgar Armacanqui · Madison, US
Wen Li · Madison, US
John Hadley · Madison, US
Janna L. Rose · Madison, US

Key dates

Filing date	Jul 11, 2012
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Jul 11, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01M6/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present disclosure is directed to a primary electrochemical cell having an improved discharge performance, and/or improved reliability under physical abuse and/or partial discharge. More particularly, the present disclosure is directed to such a primary cell that comprises an improved cathode material comprising iron disulfide and a select pH-modifier and an improved non-aqueous electrolyte that comprises a solvent, a salt, pH-modifiers, and selected organic or inorganic additives, which improve cell stability and discharge performance.

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