Non-aqueous electrolyte secondary cell

Details Non-aqueous electrolyte secondary cell Non-aqueous electrolyte secondary cell

H - Electricity

01

M

H01M 4/40 (2006.01) H01M 4/02 (2006.01) H01M 4/32 (2006.01) H01M 4/66 (2006.01) H01M 4/48 (2006.01) H01M 4/50 (2006.01) H01M 4/52 (2006.01) H01M 4/58 (2006.01) H01M 10/36 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2354754

The present invention provides a non-aqueous electrolyte secondary cell including: a lithium-nickel composite oxide as a cathode active material and a material having a specific surface in the range from 0.05 m2/g to 2 m2/g as an anode active material. When A is assumed to be the weight of the lithium-nickel composite oxide and B is assumed to be the weight of the cathode active material other than the lithium-nickel composite oxide, the mixture ratio R expressed A/(A + B) is in the range from 0.2 to 1. This combination of the cathode active material and the anode active material enables to obtain an improved anti-over discharge characteristic even when an anode current collector contains Cu.

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