Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1996-10-09
1997-10-14
Nuzzolillo, M.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
423599, 423594, 429223, H01M 404
Patent
active
056770871
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 selected from Ni, Co, Fe and Zn with 0.45.ltoreq.y.ltoreq.0.60, 1.ltoreq.x.ltoreq.2.1) having cubic spinel structure of lattice constant within 8.190 angstrom. Such an active material is manufactured by employing sol-gel process wherein one of inorganic salt, hydroxide and organic acid salt of lithium or a mixture of these for Li, one of inorganic salt and organic acid salt of manganese or a mixture of these for Mn, and one of inorganic salt and organic acid salt of the selected metal or a mixture of these for M are used as the starting materials for synthesis, ammonia water is added to the solutions of these starting materials in alcohol or water to obtain gelatinous material and the gelatinous material thus obtained is fired.
REFERENCES:
patent: 5370949 (1994-12-01), Davidson et al.
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 Maganese 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 rechargeable 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 Spinel 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.
Amine Khalil
Fujita Yuko
Yasuda Hideo
Japan Storage Battery Co., Ltd.
Nuzzolillo M.
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