Secondary battery electrode active materials and methods for...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

Reexamination Certificate

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Details

C429S220000, C429S219000, C429S231500, C429S223000, C429S221000, C429S322000, C429S326000, C429S330000, C423S301000, C423S306000

Reexamination Certificate

active

07008726

ABSTRACT:
The invention provides an electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to said first electrode, and an electrolyte material interposed there between. The first electrode comprises an electrode active material represented by the general nominal formula Aa[Mm,MIn,MIIo](XY4)dZe, wherein at least one of M, MI and MII is a redox active element, 0<m,n,o≦4, and ½[V(MI)+V(MII)]=V(M), wherein V(M) is the valence state of M, V(MI) is the valence state of MI, and V(MII) is the valence state of MII.

REFERENCES:
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patent: 6085015 (2000-07-01), Armand et al.
patent: 6136472 (2000-10-01), Barker et al.
patent: 6153333 (2000-11-01), Barker
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patent: 2003/0215715 (2003-11-01), Barker et al.
patent: 2004/0033360 (2004-02-01), Armand et al.
patent: 2200998 (1998-09-01), None
patent: 1 150 367 (2001-10-01), None
patent: 2002117903 (2002-04-01), None
patent: WO 02/27824 (2002-04-01), None
patent: WO 02/083555 (2002-10-01), None
patent: WO 2004/001881 (2003-12-01), None
J.B.Goodenough et al., “Cathodes for Lithium-Ion Batteries: Some Comparisons”, Kenki Kagaku Oyobi Kogyo Butsuri Kagaku vol. 66, No. 12, pp. 1173-1181 (1998).

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