N/S Co-doped Carbon Derived From Cotton as High Performance Anode Materials for Lithium Ion Batteries

Frontiers in Chemistry
Jiawen XiongChunlai Huang

Abstract

Highly porous carbon with large surface areas is prepared using cotton as carbon sources which derived from discard cotton balls. Subsequently, the sulfur-nitrogen co-doped carbon was obtained by heat treatment the carbon in presence of thiourea and evaluated as Lithium-ion batteries anode. Benefiting from the S, N co-doping, the obtained S, N co-doped carbon exhibits excellent electrochemical performance. As a result, the as-prepared S, N co-doped carbon can deliver a high reversible capacity of 1,101.1 mA h g-1 after 150 cycles at 0.2 A g-1, and a high capacity of 531.2 mA h g-1 can be observed even after 5,000 cycles at 10.0 A g-1. Moreover, excellently rate capability also can be observed, a high capacity of 689 mA h g-1 can be obtained at 5.0 A g-1. This superior lithium storage performance of S, N co-doped carbon make it as a promising low-cost and sustainable anode for high performance lithium ion batteries.

References

Oct 8, 2011·Journal of the American Chemical Society·Bao WangXiong Wen Lou
Jan 9, 2013·Journal of the American Chemical Society·John B Goodenough, Kyu-Sung Park
Dec 19, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Dhrubajyoti BhattacharjyaJong-Sung Yu
Jun 5, 2014·ACS Nano·Elmira Memarzadeh LotfabadDavid Mitlin
Jun 23, 2015·Environmental Science & Technology·Vinodkumar EtacheriVilas G Pol

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Methods Mentioned

BETA
electron diffraction

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