Process for preparing lithium intercalation compounds

Details Process for preparing lithium intercalation compounds Process for preparing lithium intercalation compounds

1999-02-10

2000-04-11

Langel, Wayne

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429223, 429224, H01M 432, H01M 450, H01M 452

Patent

active

060486430

ABSTRACT:
The invention relates to a process for preparing lithium intercalation compounds by thermal solid state reaction of mixtures of lithium hydroxide or lithium oxide and oxides or oxide precursors of transition metals. A significant step of this process is the treatment of an aqueous suspension of the raw material components lithium hydroxide or lithium oxide and metal oxide or metal oxide precursors with hydrogen peroxide, resulting in the lithium compound going into solution. In the drying of the mixture, the lithium hydroxide is very uniformly absorbed onto the metal oxide. Calcination at temperatures between 450.degree. C. and 700.degree. C. results in complete reaction to form the lithium intercalation compound in less than 5 hours.

REFERENCES:
patent: 5531920 (1996-07-01), Mao et al.
WO 94/22767 published Oct. 13, 1994.

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