Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1991-11-01
1994-02-15
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429220, 429229, H01M 448, H01M 452
Patent
active
052865827
ABSTRACT:
A nonaqueous electrolyte secondary battery uses lithium or a substance capable of absorbing and releasing lithium as a negative active material of a negative electrode, and uses a layer-like composite oxide of the formula Li.sub.x M.sub.y L.sub.z O.sub.2, where M is one or more transistion metal elements selected from Groups IIIB, IVB, VB, VIB, VIIB and VIII of the periodic table, L is one or more elements selected from nonmetal, metalloid and semimetal elements selected from Groups IIIA, IVA and VA of the periodic table, alkaline earth metal elements and metal elements of Zn and Cu as a positive active material constituting a positive electrode. The polarization (internal resistance) at the time of charging and discharging is reduced and an effective charging-discharging capacity is enhanced. Charging and discharging at a large current become easy, and a cycle deterioration is improved.
REFERENCES:
patent: 3939008 (1976-02-01), Longo et al.
patent: 4260668 (1981-04-01), Lecerf et al.
patent: 4292382 (1981-09-01), Lecerf et al.
patent: 4542083 (1985-09-01), Cava et al.
Ishikawa Hideki
Sakai Tsugio
Tahara Kensuke
Adams Bruce L.
Kalafut Stephen
Seiko Electronic Components Ltd.
Wilks Van C.
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