Non-aqueous battery with novel lithium manganese oxide cathode

Details Non-aqueous battery with novel lithium manganese oxide cathode Non-aqueous battery with novel lithium manganese oxide cathode

1996-12-19

1998-03-31

Gorgos, Kathryn L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

423599, 423641, 423593, 429197, 429218, C01G 4502, C01D 1502, H01M 614

Patent

active

057336814

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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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.
JH. Kanoh, et al., "Equilibrium Potentials of Spinel-Type Manganese Oxide in Aqueous Solutions" J. Electrochem. Soc., vol. 140, No. 11 (Nov., 1993).

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