Aqueous electrochemical preparation of insertion compounds and u

Details Aqueous electrochemical preparation of insertion compounds and u Aqueous electrochemical preparation of insertion compounds and u

1995-01-25

1997-02-04

Gorgos, Kathryn

Electrolysis: processes, compositions used therein, and methods

Utilizing electrolysis to form battery electrode active...

Group ia metal-containing active material

205539, 205477, 429218, 429224, H01M 429

Patent

active

055994350

ABSTRACT:
Insertion compounds that are not stable in pure water can be prepared by an aqueous electrochemical method. The pH of the electrolyte and/or the concentration of ions of the inserted species must be sufficiently high to provide stability for the product compound. The method is useful for further lithiation of conventional lithium ion battery cathode materials.

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patent: 4959282 (1990-09-01), Dahn et al.
patent: 5196279 (1993-03-01), Tarascon
H. Kanoh, et al., "Equilibrium Potentials of Spinel-Type Manganese Oxide in Aqueous Solutions" J. Electrochem. Soc. vol.140 No. 11 (Nov. 1993).
J. R. Dahn, "Rechargeable LiNiO.sub.2 /Carbon Cells", J. Electrochem. Soc., vol. 138, No. 8, Aug. 1991, pp. 2207-2211.
M. M. Thackeray, et al., "Spinel Electrodes from the Li-Mn-O System for Rechargeable Lithium Battery Applications", J. Electrochem. Soc., vol. 139, No. 2, Feb. 1992, pp. 363-366.
W. L. F. David, et al., "The crystal structure of Li.sub.2 MnO.sub.2 ", Revue de Chemie minerale, vol. 20, 1983, pp. 636-642. No Month Available.

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