CPC H01M 4/133 (2013.01) [D01D 5/003 (2013.01); D01D 5/0038 (2013.01); D01D 5/20 (2013.01); D01F 9/145 (2013.01); D01F 9/20 (2013.01); D01F 9/22 (2013.01); D04H 1/4242 (2013.01); D04H 1/728 (2013.01); D06M 13/322 (2013.01); D06M 23/06 (2013.01); H01M 4/136 (2013.01); H01M 4/366 (2013.01); H01M 4/583 (2013.01); H01M 4/5815 (2013.01); H01M 4/806 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/431 (2021.01); H01M 50/44 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01)] | 17 Claims |
1. A lithium-sulfur battery comprising:
a positive electrode;
a negative electrode;
a separator interposed between the positive electrode and the negative electrode;
a carbon-based fiber sheet interposed between the positive electrode and the separator; and
an electrolyte impregnated thereinto,
wherein the carbon-based fiber sheet is doped with nitrogen at a concentration of 20% to 30% by weight based on a total weight of the carbon-based fiber sheet,
wherein the carbon-based fiber sheet is cloth, and
wherein the carbon-based fiber sheet has a thickness of 0.1 μm to 50 μm.
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