Nonaqueous electrolytic secondary cell

H - Electricity – 01 – M

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H01M 10/26 (2006.01) H01M 6/16 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2186075

A nonaqueous electrolytic secondary cell has a cathode of an active material represented by Li x MO2, where M represents a material selected from the group consisting of Ni, Co, Fe, Mn, V, and Mo, an anode of a carbon material which can be doped or undoped with lithium, and an electrolyte produced by dissolving an electrolytic material selected from the group consisting of LiBF4, LiPF6, and LiAsF6, into a mixture of 50 ~ 60 volume % of a mixture of cyclic carbonate and cyclic ester, 20 ~ 40 volume % of chain carbonate, and 10 ~ 25 volume % of chain ester.

Une cellule d'électrolyse secondaire non aqueuse possède une cathode constituée d'une matière active représentée par la formule Li x MO2, où M est un matériau choisi dans le groupe formé par le Ni, le Co, le Fe, le Mn, le V et le Mo, une anode de matière carbonée pouvant être dopée au lithium ou non, et un électrolyte obtenu par dissolution d'un matériau électrolytique choisi parmi le groupe formé par le LiBF4, le LiPF6 et le LiAsF6 dans un mélange à 50 ~ 60 % en volume d'un mélange de carbonate cyclique et d'un ester cyclique, à 20 ~ 40 % en volume d'un carbonate à chaîne, et à 10 ~ 25 % en volume d'un ester à chaîne.

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