Electrode active material

Details Electrode active material Electrode active material

H - Electricity

01

M

H01M 4/58 (2010.01) C01B 25/45 (2006.01) H01M 4/02 (2006.01) H01M 10/00 (2006.01)

Patent

CA 2678701

Electrode active material of the invention is mainly an amorphous transition metal complex represented by AxMPyOz (where x and y are values which independently satisfy 0 <= x <= 2 and 0 <= y <=2, respectively, and z = (x + 5y + valence of M) / 2 to satisfy stoichiometry; also, A is an alkali metal and M is a metal element selected from transition metals), and has a peak near 220 cm-1 in Raman spectroscopy. Applying the electrode active material of the invention to a nonaqueous electrolyte secondary battery increases the capacity of the nonaqueous electrolyte secondary battery.

Cette invention concerne un matériau actif d'électrode consistant principalement en un complexe de métaux de transition amorphe représenté par la formule AxMPyOz (dans cette formule, x et y sont des valeurs qui répondent indépendamment aux équations 0 <= x <= 2 et 0 <= y <=2, respectivement, et z = (x + 5y + valence de M) / 2 pour répondre à la stoechiométrie; en outre, A représente un métal alcalin et M représente un élément métallique choisi parmi les métaux de transition), et il présente un pic proche de 220 cm-1 dans la spectroscopie Raman. L'application du matériau actif d'électrode décrit dans cette invention à une batterie secondaire électrolytique non aqueuse permet d'augmenter sa capacité.

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