Rice Husk-Based 3D Porous Silicon/Carbon Nanocomposites as Anode for Lithium-Ion Batteries

被引：16

作者：

Fan, Xiaoyong ^{[1
,2
]}

Yin, Baipeng ^{[1
]}

Wu, Tianhui ^{[1
]}

Feng, Man ^{[1
]}

Zhang, Guang Cong ^{[1
]}

Li, Siheng ^{[3
,4
]}

Tang, Shoufeng ^{[1
]}

Gu, Jianmin ^{[1
,5
]}

Wen, Bin ^{[5
]}

Lu, Li ^{[3
]}

机构：

[1] Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Hebei, Peoples R China

[2] Changan Univ, Sch Mat Sci & Engn, Xian 710061, Shaanxi, Peoples R China

[3] Natl Univ Singapore, Dept Mech Engn, 9 Engn Dr 1, Singapore 117576, Singapore

[4] Shenzhen Wamat New Mat Technol Co Ltd, Feimoshangfang Ctr, Level 5,Beihuan Blvd, Shenzhen 518000, Guangdong, Peoples R China

[5] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol MMST, Qinhuangdao 066004, Hebei, Peoples R China

来源：

ENERGY TECHNOLOGY | 2019年 / 7卷 / 06期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

energy storage devices; lithium-ion batteries; rice husks; silicon; carbon nanocomposites; 3D porous structure; LI-ION; PRACTICAL APPLICATION; NANOSHEET ARRAYS; CARBON; COMPOSITE; BIOMASS; NANOPARTICLES; REDUCTION; SPHERES;

D O I：

10.1002/ente.201800787

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Silicon/carbon (Si/C) nanocomposites with 3D porous structure are prepared by a high-temperature hydrothermal treatment and subsequent magnesiothermic reduction using rice husks (RHs) and NaCl as Si/C sources and potential porogens. In this strategy, interconnected and uniform nanopores are introduced into RHs under the assistance of NaCl and high pressure while the organic components are carbonized, and the intermediate products (porous SiO2/C nanocomposites) are formed. The porous structure is maintained well during the high-temperature hydrothermal treatment. After the magnesiothermic reduction of the porous SiO2/C nanocomposites, a 3D porous Si/C nanocomposite is formed, which provides rapid transferring channels for the lithium ions and accommodates volumetric changes during electrochemical cycling, leading to an improved electrochemical performance.

引用

页数：7

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