Non-aqueous electrolyte cell

Details Non-aqueous electrolyte cell Non-aqueous electrolyte cell

2006-01-31

2006-01-31

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

C429S221000, C429S224000, C429S231800

Reexamination Certificate

active

06991873

ABSTRACT:
A non-aqueous electrolyte cell having high discharge capacity, an improved capacity upkeep ratio and optimum cyclic characteristics. The non-aqueous electrolyte cell has a cell device including a strip-shaped cathode material and a strip-shaped anode material, layered and together via a separator and coiled a plural number of times, a non-aqueous electrolyte solution, and a cell can for accommodating cell device and the non-aqueous electrolyte solution. The cathode employs a cathode active material containing a compound of the olivinic structure represented by the general formula LixFe1-yMyPO4, where M is at least one selected from the group consisting of Mn, Cr, Co, Cu, Ni, V, Mo, Ti, Zn, Al, Ga, Mg, B and Nb, with 0.05≦x≦1.2 and 0≦y≦0.8, with the compound being used either singly or in combination with other materials. The ratio of an inner diameter d to an outer diameter D of cell device is selected so that 0.05<d/D<0.5.

REFERENCES:
patent: 4333994 (1982-06-01), Urry
patent: 4663247 (1987-05-01), Smilanich et al.
patent: 5571632 (1996-11-01), Teramoto
patent: 5686203 (1997-11-01), Idota et al.
patent: 5910382 (1999-06-01), Goodenough et al.
patent: 5916707 (1999-06-01), Omaru et al.

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