Electrolytes having improved low temperature performance

Details Electrolytes having improved low temperature performance Electrolytes having improved low temperature performance

H - Electricity

01

M

H01M 10/40 (2006.01) H01M 2/16 (2006.01) H01M 4/58 (2006.01)

Patent

CA 2351476

The present invention provides a novel electrolyte solvent which is usable with a variety of carbonaceous and metal oxide electrode active materials, providing improved performance over a broad temperature range, and which is stabilized to maintain cell capacity over a number of cycles. It comprises in specific mixtures a compound represented by R'CDOR'' where R' and R'' are each independently selected from the group of ethyl and propyl.

La présente invention porte sur un nouveau solvant d'électrolyte pouvant être utilisé avec une variété de matériaux actifs d'électrode carbonée et d'oxyde métallique et conférant une meilleure performance sur une large plage de températures, ce solvant étant stabilisé de façon conserver une capacité cellulaire sur un nombre de cycles. Il comprend, dans des mélanges spécifiques, un composé représenté par R'CDOR'', R' et R'' étant chacun sélectionnés, indépendamment, dans le groupe d'éthyl et de propyl.

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