Lithium nickel cobalt oxides for positive electrodes

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

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429224, H01M 402

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057833338

ABSTRACT:
Positive electrodes including a lithium nickel cobalt metal oxide are disclosed. The lithium nickel cobalt metal oxides have the general formula Li.sub.x Ni.sub.y CO.sub.z M.sub.n O.sub.2, where M is selected from the group consisting of aluminum, titanium, tungsten, chromium, molybdenum, magnesium, tantalum, silicon, and combinations thereof, x is between about 0 and about 1 and can be varied within this range by electrochemical insertion and extraction, the sum of y+z+n is about 1, n ranges between above 0 to about 0.25, y and z are both greater than 0, and the ratio z/y ranges from above 0 to about 1/3. Also disclosed are composite positive electrodes including the abovedescribed lithium nickel cobalt metal oxides together with a lithium manganese metal oxide of the formula Li.sub.x Mn.sub.2-r M1.sub.r O.sub.4, where r is a value between 0 and 1 and M1 is chromium, titanium, tungsten, nickel, cobalt, iron, tin, zinc, zirconium, silicon, or a combination thereof.

REFERENCES:
patent: 5053297 (1991-10-01), Yamahira et al.
patent: 5084366 (1992-01-01), Toyoguchi
patent: 5169736 (1992-12-01), Bittihn et al.
patent: 5264201 (1993-11-01), Dahn et al.
patent: 5278000 (1994-01-01), Huang et al.
patent: 5339024 (1994-08-01), Kuo et al.
patent: 5429890 (1995-07-01), Pynenburg et al.
patent: 5451477 (1995-09-01), Omaru et al.
patent: 5478671 (1995-12-01), Idota
patent: 5478674 (1995-12-01), Miyasaka
patent: 5506075 (1996-04-01), Iwasaki et al.
Ohzuku, Tsutomu, Ueda, Atsushi, Nagayama, Masatoshi, Iwakoshi, Yasunobu, and Komori, Hideki, "Comparative Study of LiCoO.sub.2, LiNi.sub.1/2 Co.sub.1/2 O.sub.2 and LiNiO.sub.2 for 4 Volt Secondary Lithium Cells", Electrochimica Acta, vol. 38, No. 9, pp. 1159-1167, 1993. (month N/A).
Gummow, R.J. and Thackeray, M.M., "Lithium-cobalt-nickel-oxide Cathode Materials Prepared at 400.degree. C for Rechargeable Lithium Batteries", Solid State Ionics 53-56, pp. 681-687, 1992. (month N/A).
Reimers, J.N. and Dahn, J.R., Effects of Impurities of the Electrochemical Properties, of LiCoO.sub.2, pp. 2752-2754, J. Electrochem, So., vol. 140, No. 10, Oct. 1993.
Ueda, Atsushi and Ohzuhu, Tsutomu, "Solid-State Redox Reactions of LiNi.sub.1/2 O.sub.2 (R3m) for 4 Volt Secondary Lithium Cells", J. Electrochem, Soc., vol. 141, No. 8, Aug. 1994.
Fuller, Thomas F., Doyle, Marc, and Newman, John, "Simulation and Optimization of dual Lithium Ion Insertion Cell", J. Electrochem, So., vol. 141, No. 1, Jan. 1994.
Davidson, I.J., McMillian, R.S., and Murray, J.J., "Rechargeable Cathodes Based on Li.sub.2 Cr.sub.x Mn.sub.2-x O4", pp. 463-465, Abstract for Seventh International Meeting on Lithium Batteries, Boston, MA, May 15-20, 1995.
Banov, N. Ilchiev, Bourilkov, J., Stoyanova, E., Zhencheva, R. "Cathodes for . . . ", p. 435, Abstract for Seventh International Meeting on Lithium Batteries, Boston, MA, May 15-20, 1995. (month N/A).
Nitta, Yoshiaki, Okamura, Kazuhiro, Haraguchi, Kazumori, Kobayashi, Shigeo, and Ohta, Akira, "Crystal Structure Study of LiNi.sub.1-x Mn.sub.x O.sub.2 ", pp. 403-432, Abstract for Seventh International Meeting on Lithium Batteries, Boston, MA, May 15-20, 1995. (month N/A).
Ohzuku et al., "Synthesis and Characterization of LiA1.sub.0.25 Ni.sub.0.75 0.sub.2 (R3m) . . . ", J. Electrochem. Soc., Vo. 142, No. 12, p. 4033 (1995) (month N/A).
Doyle et al., "Modelling of Galvanostatic Charge and Discharge . . . " J. Electrochem. Soc., vol. 140, No. 6, (1993) (month N/A).
Howard Jr., et al., Meeting Abstracts, Spring Meeting Electrochem. Soc. Los Angeles, CA, May 5-10, 1996 vol. 96-1, pp. 64-65.
Okada et al., "Synthesis and Echem. Charctrstcs of Li(NiM)O2 . . . ", 8th Int. Meeting on Lithium Batteries, Jun. 16-21, 1996, Nagoya Japan, Extended Abstracts II-B-10, pp. 424-425.
Ohzuku, "An Innovative Insertion Material . . . ", 8th Int. Meeting on Lithium Batteries, Jun. 16-21, 1996, Nagoya Japan, Extended Abstracts THU-06, pp. 123-124.
Zhong et al., "Crystal structures and electrochem. props. of LiAlyNi1-yO2 solid soln." J. Power Sources, 54, pp. 221-223 (1995) (month N/A).

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