Nonaqueous lithium secondary battery with cyclability and/or...

H - Electricity – 01 – M

Patent

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Details

H01M 10/0566 (2010.01) H01M 10/0525 (2010.01)

Patent

CA 2538605

The present invention provides: (i) a nonaqueous electrolyte for batteries, which is characterized by containing halogen; (ii) a nonaqueous electrolyte for batteries, which is characterized by containing pyrrol or its derivative and halogen; and (iii) a lithium secondary battery which is characterized by including the nonaqueous electrolyte (i) or (ii). The inventive lithium secondary battery has improvements in charge/discharge and cycle life characteristics at ambient and high temperatures, and/or storage characteristics and safety at high temperature.

La présente invention se rapporte à (i) un électrolyte non aqueux pour batteries, qui se caractérise en ce qu'il contient un halogène; (ii) un électrolyte non aqueux pour batterie, qui se caractérise en ce qu'il contient du pyrrol ou son dérivé et un halogène; et (iii) une batterie secondaire au lithium qui se caractérise en ce qu'elle contient l'électrolyte non aqueux décrit en (i) ou (ii). La batterie secondaire au lithium de la présente invention présente des améliorations des caractéristiques de charge/décharge et de durée de cycle à température ambiante et à hautes températures et/ou des améliorations des caractéristiques de stockage et de la sécurité à haute température.

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