Positive electrode active material for lithium battery

Details Positive electrode active material for lithium battery Positive electrode active material for lithium battery

1996-04-19

1998-04-14

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429224, H01M 402

Patent

active

057389578

ABSTRACT:
A positive electrode active material for lithium battery which is represented by general formula Li.sub.x Mn.sub.2-y M.sub.y O.sub.4 (M: a 2-valency metal, 0.45.ltoreq.y.ltoreq.0.60, 1.ltoreq.x.ltoreq.2.1) having cubic spinel structure of lattice constant within 8.190 angstroms.

REFERENCES:
The Spinel Phases of LiMn.sub.2 O.sub.4 as a Cathode in Secondary Lithium Cells, by Tarascon et al.
"The Spinel Phases LiMyMn.sub.2-4 O.sub.4 (M=Co, Cr, Mi) as the cathode for Rechaupeable lithium bacteria" by Li et al. J. electrochem. Soc., (1996) 143(1), 178-82 month (N/A).
J. Electrochem. Soc., vol. 137, No. 3 (Mar. 1990), pp. 769-775. Electrochemistry of Maganese Dioxide in Lithium Nonaqueous Cell, Tsutomu Ohzuku, Masaki Kitagawa, and Taketsugu Hirai.
Mat. Res. Bull., vol. 18 (1983), pp. 461-472. Lithium Insertion Into Manganese Spinels, M.M. Tackeray, W.I.F. David, P.G. Bruce, and J.B. Goodenough (month N/A).
Solid State Ionic 69 (1994), pp. 59-67. Improved capacity retention in rechargeabe 4 V lithium/Lithium-manganese oxide (spinel) cells, R.J. Gummow, A. de Kock, M.M. Thackeray (month N/A).
Journal of Power Sources, 43-44 (1993), pp. 223-231 The SWING system, a nonaqueous rechargeable carbon/metal oxide cell, R. Bittihn, R. Herr and D. Hoge (month N/A).
Journal of Power Sources 52 (1994), pp. 185-192. Determination of thermodynamic, kinetic and interfacial properties for the Li/Li.sub.x Mn.sub.2 O.sub.4 system by electrochemical techniques, J. Barker, R. Pynenburg, R. Koksbang (month N/A).
J. Electrochem. Soc., vol. 183, No. 10 (Oct. 1991), pp. 2859-2864. The Spinal Phase of LiMn.sub.2 O.sub.4 as a Cathode in Secondary Lithium Cells, J.M. Tarascon, E. Wang, and F.K. Shokoohi.
Japanese Patent Application Laid-Open No. 3-285262, filed Dec. 16, 1991.
Japanese Patent Application Laid-Open No. 63-274059, filed Nov. 11, 1988.
Japanese Patent Application Laid-Open No. 4-87268, filed Mar. 19, 1992.
German Patent Office, Mar. 10, 1997--Concise explanation of DE 43,28,755 and De 40 25 208.

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