Positive electrode for non-aqueous electrolyte lithium secondary

Details Positive electrode for non-aqueous electrolyte lithium secondary Positive electrode for non-aqueous electrolyte lithium secondary

1995-05-11

1997-03-11

Kalafut, Stephen N.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

4271263, 429218, H07M 462

Patent

active

056099754

ABSTRACT:
A positive electrode for a non-aqueous electrolyte lithium secondary battery comprises an active material represented by the formula Li.sub.x A.sub.1-y M.sub.y O.sub.2 (wherein A represents at least one transition element selected from the group consisting of Mn, Co, and Ni, M represents at least one element selected from the group consisting of B, Mg, Ca, Sr, Ba, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, In, Nb, Mo, W, Y, and Rh, and wherein 0.05.ltoreq.x.ltoreq.1.1, and 0.ltoreq.y.ltoreq.0.5), a binder, a conductive agent and a current collector. The binder is selected from the group consisting of a copolymer comprising a tetrafluoroethylene unit and a hexafluoropropylene unit, a copolymer comprising a vinylidene fluoride unit, a copolymer comprising a propylene unit and a tetrafluoroethylene unit, and a polymer comprising a trifluoropropylmethylsiloxane unit.

REFERENCES:
patent: 4710335 (1987-12-01), Kita et al.
patent: 4940605 (1990-07-01), Damper
patent: 4964877 (1990-10-01), Keister et al.
patent: 5286582 (1994-02-01), Tahara
patent: 5316875 (1994-05-01), Murai et al.
patent: 5409786 (1995-04-01), Bailey
patent: 5443601 (1995-08-01), Doeff et al.

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