N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries
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- N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries
- Lee, Won Jun; Hwang, Tae Hoon; Hwang, Jin Ok; Kim, Hyun Wook; Lim, Joonwon; Jeong, Hu Young; Shim, Jongwon; Han, Tae Hee; Kim, Je Young; Choi, Jang Wook; Kim, Sang Ouk
- CARBON NANOTUBE ARRAYS; HIGH-CAPACITY; CORE/SHELL NANOWIRES; SECONDARY BATTERIES; GRAPHENE OXIDE; STORAGE; CHARGE; NANOPARTICLES; ADSORPTION; CHALLENGES
- Issue Date
- ROYAL SOC CHEMISTRY
- ENERGY & ENVIRONMENTAL SCIENCE, v.7, no.2, pp.621 - 626
- N-doped sites at CNT and graphene trigger spontaneous encapsulation of Si particles by simple pH control at room temperature. Significantly, N-doped CNT encapsulated Si composite electrode materials show remarkable cycle life and rate performance in battery operations. Superior capacity retention of 79.4% is obtained after 200 cycles and excellent rate capability of 914 mA h g -1 is observed at a 10 C rate.
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