Negative electrode active material for nonaqueous...

Details Negative electrode active material for nonaqueous... Negative electrode active material for nonaqueous...

2007-12-04

2007-12-04

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C252S502000

Reexamination Certificate

active

10667863

ABSTRACT:
The present invention provides a negative electrode active material for nonaqueous electrolyte secondary battery, including carbonaceous particles and a Si phase dispersed in the carbonaceous particles, wherein a half width of a diffraction peak of (220) plane in powder X-ray diffraction is 1.5° or more and 8° or less, and an average size of the Si phase is less than 100 nm.

REFERENCES:
patent: 6383686 (2002-05-01), Umeno et al.
patent: 6495291 (2002-12-01), Kohno et al.
patent: 2003/0215711 (2003-11-01), Aramata et al.
patent: 2006/0068287 (2006-03-01), Morita et al.
patent: 2000-215887 (2000-08-01), None
Weibing Xing, et al. “Pyrolyzed Polysiloxanes for Use as Anode Materials in Lithium-Ion Batteries,” J. Electrochem. Soc., vol. 144, No. 7, Jul. 1997, p. 2410-2416.

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