| CPC H01M 4/661 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0471 (2013.01); H01M 4/131 (2013.01); H01M 4/134 (2013.01); H01M 4/1391 (2013.01); H01M 4/1395 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] | 6 Claims |
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1. A negative electrode comprising:
a negative electrode current collector including a base and copper coated on the base,
wherein a thickness of the copper is from 10 nm to 500 nm,
wherein the negative electrode current collector is heat treated to remove a copper oxide layer on the surface of the negative electrode current collector; and
a lithium metal disposed on the negative electrode current collector;
wherein in said negative electrode current collector,
a sum of S(110) and S(100) is 50% or more,
wherein the S(110) is a ratio of a region occupied by a (110) surface of the copper based on an entire region occupied by the copper at a surface of the negative electrode current collector, and
the S(100) is a ratio of a region occupied by a (100) surface of the copper based on an entire region occupied by the copper at a surface of the negative electrode current collector.
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