NONAQUEOUS ELECTROLYTE SOLUTION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte solution secondary battery excellent in rate characteristics and charging/recharging cycle characteristics for one with a positive electrode plate, a negative electrode plate and nonaqueous electrolyte solution as main constituents.

SOLUTION: With the nonaqueous electrolyte solution secondary battery, Li(1+X)Co(1-X)MgXO2(0.005≤x≤0.2) is used as a positive electrode active material for the positive electrode plate 5, with a fine particle resistivity of a mixture of the positive electrode active material constituting the positive electrode and a conductive material of not more than 1.0×102Ωcm and with a resistivity of the positive electrode plate 5 in a width direction of not more than 10Ωcm.

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