NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

DRIVE February 27, 2020
Source
This non-aqueous electrolyte secondary battery is provided with: a wound electrode body which comprises a positive electrode, a negative electrode and a separator, and wherein the positive electrode and the negative electrode are wound into a roll, with the separator being interposed therebetween; and a non-aqueous electrolyte. The negative electrode comprises a negative electrode collector and a negative electrode mixture layer that is formed on the negative electrode collector. The negative electrode mixture layer contains graphite, a carbon material that has a BET specific surface area of 10 m/g or more, said BET specific surface area being larger than that of the graphite, and a hydrophobic binder. The coverage of the particle surfaces of the carbon material by the binder is higher than the coverage of the particle surfaces of the graphite by the binder.

Discussion in the ATmosphere

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