Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2007-08-28
2007-08-28
Kalafut, Stephen (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C029S623500, C429S133000
Reexamination Certificate
active
10439807
ABSTRACT:
The battery comprises a positive electrode which has a positive electrode active material compound layer containing a positive electrode active material formed on a positive electrode current collector; a negative electrode which has at least one negative electrode thin film layer and at least one negative electrode active material compound layer, on a negative electrode current collector, and a non-aqueous electrolyte containing an electrolyte salt. The negative electrode thin film layer contains at least one Group 14 element, and is formed by a thin-film formation technology, and the negative electrode active material compound layer contains a binder and a negative electrode active material, which contains at least any one of Sn, Si, Sn compound, Si compound and carbonaceous material. With this negative electrode, the negative electrode thin film layer containing a high-capacity Group 14 element raises the battery capacity, and the negative electrode active material compound layer provides excellent charge/discharge cycle characteristics while suppressing degradation of the negative electrode even under repetitive charge/discharge.
REFERENCES:
patent: 6183908 (2001-02-01), Miyasaka et al.
patent: 11-73946 (1999-03-01), None
Inoue Hiroshi
Mizutani Satoshi
Nishino Takatomo
Omaru Atsuo
Kalafut Stephen
Mercado Julian
Sonnenschein Nath & Rosenthal LLP
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