Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Enhanced lithium storage performance of porous Si/C composite anodes using a recrystallized NaCl template | |
Hong, Ye1; Dong, Haiyong2; Li, Jianhong2; Hu, Qianqian2,3,4,5,6; Tang, Zilong7; Ouyang, Jian1; Wang, Xiaojun1; Xiang, Dan1 | |
2021-02-28 | |
发表期刊 | DALTON TRANSACTIONS |
ISSN | 1477-9226 |
卷号 | 50期号:8页码:2815-2823 |
通讯作者 | Xiang, Dan(gpnuxd@163.com) |
摘要 | Silicon (Si) has recently aroused great interest as a promising anode material for lithium-ion batteries with high energy density due to its high theoretical capacity. However, the application of Si remains a great challenge owing to its extremely large volume change during cycling, thus resulting in dramatic capacity fading. Herein, a novel structure design of the porous Si/C composite with Si nanoparticles embedded in the carbon nanosheets has been successfully achieved by using a recrystallized NaCl template with appropriate particle size. The outermost sheet-like carbon coating can improve the electronic conductivity and contribute to the formation of a more stable solid-electrolyte interphase layer, while the inner void space effectively buffers the volume expansion of Si during the lithiation process. In addition, only a structure with Si particles anchored on the surface of carbon nanosheets has been obtained by using a commercial NaCl template with large particle size, confirming the effective regulation of the NaCl template in the microstructure and thus the electrochemical properties of the Si/C composites. As expected, benefiting from the combination of the outermost carbon coating and recrystallized NaCl-derived porous structure, the as-obtained Si/C composite demonstrates attractive cycling stability and rate performance as an anode material for lithium-ion batteries. |
DOI | 10.1039/d0dt03911j |
关键词[WOS] | SILICON NANOPARTICLES ; CARBON NANOSHEETS ; FACILE SYNTHESIS ; ION ; GRAPHENE ; PARTICLES |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Guangdong Science and Technology Project[2016B090927009] ; Guangdong Science and Technology Project[2016B090927002] ; Special Projects in Universities' Key Fields of Guangdong Province[2020ZDZX2002] ; Guangzhou Science and Technology Project[201805010001] ; State Key Laboratory of New Ceramic and Fine Processing Tsinghua University[KF202009] |
WOS研究方向 | Chemistry |
项目资助者 | Guangdong Science and Technology Project ; Special Projects in Universities' Key Fields of Guangdong Province ; Guangzhou Science and Technology Project ; State Key Laboratory of New Ceramic and Fine Processing Tsinghua University |
WOS类目 | Chemistry, Inorganic & Nuclear |
WOS记录号 | WOS:000624242900014 |
出版者 | ROYAL SOC CHEMISTRY |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/32830 |
专题 | 中国科学院广州能源研究所 |
通讯作者 | Xiang, Dan |
作者单位 | 1.Guangdong Polytech Normal Univ, Ind Training Ctr, Guangzhou 510665, Peoples R China 2.GAC Automot Res & Dev Ctr, Guangzhou 511434, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 4.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 5.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China |
推荐引用方式 GB/T 7714 | Hong, Ye,Dong, Haiyong,Li, Jianhong,et al. Enhanced lithium storage performance of porous Si/C composite anodes using a recrystallized NaCl template[J]. DALTON TRANSACTIONS,2021,50(8):2815-2823. |
APA | Hong, Ye.,Dong, Haiyong.,Li, Jianhong.,Hu, Qianqian.,Tang, Zilong.,...&Xiang, Dan.(2021).Enhanced lithium storage performance of porous Si/C composite anodes using a recrystallized NaCl template.DALTON TRANSACTIONS,50(8),2815-2823. |
MLA | Hong, Ye,et al."Enhanced lithium storage performance of porous Si/C composite anodes using a recrystallized NaCl template".DALTON TRANSACTIONS 50.8(2021):2815-2823. |
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