Battery with cathode having inactive materials

Details Battery with cathode having inactive materials Battery with cathode having inactive materials

2011-05-24

2011-05-24

Maples, John S (Department: 1728)

Metal working

Method of mechanical manufacture

Electrical device making

C029S623100, C429S231100, C429S231300

Reexamination Certificate

active

07947092

ABSTRACT:
A battery includes an electrolyte activating one or more anodes and one or more cathodes. The electrolyte includes one or more salts in a solvent. One or more of the cathodes has a cathode medium that includes a lithium transition metal oxide as a cathode active material. The cathode medium also includes an inactive material that reacts with the electrolyte to form a passivation layer on the cathode medium. The passivation layer can include LiF. In some instances, the inactive material includes or consists of Li2CO3.

REFERENCES:
patent: 5955051 (1999-09-01), Li et al.
patent: 6337132 (2002-01-01), Kajiyama et al.
patent: 7381496 (2008-06-01), Onnerud et al.
patent: 2002/0110518 (2002-08-01), Okuda et al.

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