Nonaqueous electrolyte secondary battery including a...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

Reexamination Certificate

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C429S215000, C429S218100

Reexamination Certificate

active

07923148

ABSTRACT:
Disclosed is a nonaqueous electrolyte secondary battery which has a negative electrode containing silicon as a negative active material, a positive electrode containing a positive active material, a nonaqueous electrolyte and a separator. Characteristically, an additive which retards oxidation of silicon during operation of the battery is contained either in an interior or surface portion of the positive electrode, or in an interior or surface portion of the negative electrode, or in an interior or surface portion of the separator.

REFERENCES:
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patent: 2002/0086206 (2002-07-01), Fauteux et al.
patent: 2002/0136950 (2002-09-01), Gan et al.
patent: 2005/0191547 (2005-09-01), Konishiike et al.
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patent: 2004-296103 (2004-10-01), None
patent: 2004-335379 (2004-11-01), None
patent: 2004-349079 (2004-12-01), None
patent: 2005-63772 (2005-03-01), None
patent: 2003-0066816 (2003-08-01), None
Chinese Office Action dated May 27, 2010, issued in Chinese Patent Appln, No. 200610067109.2, and an English translation thereof.

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