N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries

Won Jun Lee; Tae Hoon Hwang; Jin Ok Hwang; Hyun Wook Kim; Joonwon Lim; Hu Young Jeong; Jongwon Shim; Tae Hee Han; Je Young Kim; Jang Wook Choi; Sang Ouk Kim

doi:10.1039/c3ee43322f

N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries

Won Jun Lee, Tae Hoon Hwang, Jin Ok Hwang, Hyun Wook Kim, Joonwon Lim, Hu Young Jeong, Jongwon Shim, Tae Hee Han, Je Young Kim, Jang Wook Choi, Sang Ouk Kim

Research output: Contribution to journal › Article › peer-review

142 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	621-626
Number of pages	6
Journal	Energy and Environmental Science
Volume	7
Issue number	2
DOIs	https://doi.org/10.1039/c3ee43322f
Publication status	Published - Feb 2014

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abstract = "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.",

author = "Lee, {Won Jun} and Hwang, {Tae Hoon} and Hwang, {Jin Ok} and Kim, {Hyun Wook} and Joonwon Lim and Jeong, {Hu Young} and Jongwon Shim and Han, {Tae Hee} and Kim, {Je Young} and Choi, {Jang Wook} and Kim, {Sang Ouk}",

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doi = "10.1039/c3ee43322f",

language = "English",

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AU - Lee, Won Jun

AU - Hwang, Tae Hoon

AU - Hwang, Jin Ok

AU - Kim, Hyun Wook

AU - Lim, Joonwon

AU - Jeong, Hu Young

AU - Shim, Jongwon

AU - Han, Tae Hee

AU - Kim, Je Young

AU - Choi, Jang Wook

AU - Kim, Sang Ouk

PY - 2014/2

Y1 - 2014/2

N2 - 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.

AB - 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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U2 - 10.1039/c3ee43322f

DO - 10.1039/c3ee43322f

M3 - Article

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EP - 626

JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 2

ER -

N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries

Abstract

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