Lithium secondary battery of electrolyte containing ammonium...

Details Lithium secondary battery of electrolyte containing ammonium... Lithium secondary battery of electrolyte containing ammonium...

2006-02-13

2009-12-29

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having means to accommodate electrode expansion

Reexamination Certificate

active

07638229

ABSTRACT:
Disclosed is a lithium secondary battery using a cathode containing a lithium-containing transition metal oxide and an anode containing graphitized carbon, characterized in that an ammonium compound capable of providing ammonium ions is added to a non-aqueous electrolyte. Therefore, the present invention provides a lithium secondary battery having improved high-temperature performance by reducing decreases of residual capacity and recovery capacity resulting from high-temperature storage of the battery, via addition of such an ammonium compound.

REFERENCES:
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patent: 5521027 (1996-05-01), Okuno et al.
patent: 5525443 (1996-06-01), Okuno et al.
patent: 2004/0013942 (2004-01-01), Fukumoto et al.
patent: 2000-123867 (2000-04-01), None
patent: 2002-25611 (2002-01-01), None
patent: 2002-270230 (2002-09-01), None

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