NEGATIVE ELECTRODE PLATE FOR SECONDARY BATTERY, AND SECONDARY BATTERY, AND BATTERY PACK

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode plate for secondary battery in which deterioration of cycle characteristics or battery characteristics can be prevented while increasing the capacity, and to provide a secondary battery or a battery pack using the same.SOLUTION: A negative electrode plate for secondary battery includes a negative electrode collector, and a negative electrode active material laminate provided on the negative electrode collector. The negative electrode active material laminate includes more than two negative electrode active material layers containing a specific negative electrode active material composed of a silicon-based active material and/or a tin-based active material, and a binder. On the negative electrode active material layer existing at a position closest to the negative electrode collector, another negative electrode active material layer containing a specific negative electrode active material at a ratio smaller than the content ratio of a specific negative electrode active material in the negative electrode active material layer is provided.