Process for the production of an electrode for a fused...

Details Process for the production of an electrode for a fused... Process for the production of an electrode for a fused...

H - Electricity

01

M

H01M 4/88 (2006.01) H01M 8/14 (2006.01) H01M 4/86 (2006.01)

Patent

CA 2244969

The invention concerns a process for the production of a porous lithium cobaltite electrode plate with a large inner surface and low polarization resistance. Lithium carbonate powder and cobalt metal powder are uniformly mixed together and then films are produced from the mixture and plates from the films, which plates are sintered and then placed in an air stream for several hours at a temperature between 400 ° C and 488 ° C until the conversion of said plates to lithium cobaltite electrode plates with an extremely large inner surface has taken place.

L'invention concerne un procédé permettant de produire une plaque électrode en cobaltite de lithium, poreuse, présentant une grande surface intérieure et une faible résistance de polarisation. Selon ce procédé, on mélange, de façon homogène, une poudre de carbonate de lithium et une poudre métallique de cobalte et, à partir du mélange obtenu, on produit des feuilles minces à partir desquelles on produit des plaques qui sont frittées et placées dans un courant d'air pendant plusieurs heures, à une température comprise entre 400 DEG C et 488 DEG C, jusqu'à ce qu'elles se transforment en plaques électrodes en cobaltite de lithium présentant une surface intérieure extrêmement grande.

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