Dual-Carbon-Confined SnS Nanostructure with High Capacity and Long Cycle Life for Lithium-ion Batteries

时间:2020-12-10作者:浏览量:169


Dual-Carbon-Confined SnS Nanostructure with High Capacity and Long Cycle Life for Lithium-ion Batteries

作者:Lin, M (Lin, Min)[ 1 ] ; Cheng, DL (Cheng, Deliang)[ 2 ] ; Liu, JW (Liu, Jiangwen)[ 1 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1 ] ; Hu, RZ (Hu, Renzong)[ 1 ] ; Liu, J (Liu, Jun)[ 1 ] ; Yang, LC (Yang, Lichun)[ 1 ] ; Zhu, M (Zhu, Min)[ 1 ]


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ENERGY & ENVIRONMENTAL MATERIALS


DOI: 10.1002/eem2.12136


Early access icon在线发表日期: OCT 2020

文献类型:Article; Early Access


摘要

SnS with high theoretical capacity is a promising anode material for lithium-ion batteries. However, dramatic volume changes of SnS during repeated discharge/charge cycles result in fractures or even pulverization of electrode, leading to rapid capacity degradation. To solve this problem, we construct a dual-carbon-confined SnS nanostructure (denoted as SnS@C/rGO) by depositing semi-graphitized carbon layers on reduced graphene oxide (rGO) supported SnS nanoplates during high-temperature reduction. The dual carbon of rGO and in situ formed carbon coating confines growth of SnS during the high-temperature calcination. Moreover, during the reversible Li+ storage the dual-carbon modification enables good electronic conductivity, relieves the volume effect, and provides double insurance for the electrical contact of SnS even after repeated cycles. Benefiting from the dual-carbon confinement, SnS@C/rGO exhibits significantly enhanced rate capability and cycling stability compared with the bare and single carbon modified SnS. SnS@C/rGO presents reversible capacity of 1029.8 mAh g(-1) at 0.2 A g(-1). Even at a high current density of 1 A g(-1), it initially delivers reversible capacity of 934.0 mAh g(-1) and retains 98.2% of the capacity (918.0 mAh g(-1)) after 330 cycles. This work demonstrates potential application of dual-carbon modification in the development of electrode materials for high-performance lithium-ion batteries.


关键词

作者关键词:conformal carbon coating; dual‐ carbon confinement; lithium‐ ion battery; reduced graphene oxide; SnS


KeyWords Plus:HIGH-PERFORMANCE LITHIUM; ONE-POT SYNTHESIS; ANODE MATERIAL; ELECTROCHEMICAL PERFORMANCE; GRAPHENE; NANOSHEETS; NANOCOMPOSITE; COMPOSITE; NETWORKS


作者信息

通讯作者地址:


South China University of Technology South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.

通讯作者地址: Yang, LC (通讯作者)


显示更多South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.

地址:


显示更多[ 1 ]‎ South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China

显示更多[ 2 ]‎ Jiangxi Normal Univ, Inst Adv Mat, Nanchang 330022, Jiangxi, Peoples R China

电子邮件地址:mslcyang@scut.edu.cn


基金资助致谢

基金资助机构显示详情授权号

Guangdong Natural Science Funds for Distinguished Young Scholar

2017B030306004

Guangdong Special Support Program

2017TQ04N224

National Natural Science Foundation of China (NSFC)


51671089

National Natural Science Foundation of China (NSFC)


NSFC51621001

Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme  

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出版商

WILEY, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA


类别 / 分类

研究方向:Materials Science


Web of Science 类别:Materials Science, Multidisciplinary