CPC H01M 4/622 (2013.01) [H01M 4/366 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01)] | 13 Claims |
1. An electrode for a secondary battery, comprising:
a current collector;
a first electrode mixture layer disposed on at least one surface of the current collector and including a first styrene-butadiene rubber; and
a second electrode mixture layer disposed on the first electrode mixture layer and including a second styrene-butadiene rubber,
wherein the first styrene-butadiene rubber and the second styrene-butadiene rubber include a repeating unit of a styrene-derived structure and a repeating unit of a butadiene-derived structure,
the first styrene-butadiene rubber contains 40 to 90 mol % of a butadiene monomer based on a total content of a monomer, and
the second styrene-butadiene rubber has a lower content of a butadiene monomer than the content of the first styrene-butadiene rubber.
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