CPC H01M 4/661 (2013.01) [H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01)] | 15 Claims |
1. A secondary battery, comprising a negative electrode plate, wherein:
the negative electrode plate comprises a negative electrode current collector, a first negative electrode active substance layer disposed on at least one surface of the negative electrode current collector, and a second negative electrode active substance layer disposed on the first negative electrode active substance layer;
the first negative electrode active substance layer comprises a first negative electrode active substance, and the second negative electrode active substance layer comprises a second negative electrode active substance; and
the first negative electrode active substance satisfies 1 GPa≤Young's modulus≤10 GPa, and the second negative electrode active substance satisfies 11 GPa≤Young's modulus≤30 GPa.
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