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