SnS2/g-C3N4/graphite nanocomposites as durable lithium-ion battery anode with high pseudocapacitance contribution
作者:Zuo, Y (Zuo, Yong)[ 1,2 ] ; Xu, XJ (Xu, Xijun)[ 3,4 ] ; Zhang, CQ (Zhang, Chaoqi)[ 1,2 ] ; Li, JS (Li, Junshan)[ 1,2 ] ; Du, RF (Du, Ruifeng)[ 1,2 ] ; Wang, X (Wang, Xiang)[ 1,2 ] ; Han, X (Han, Xu)[ 5,6 ] ; Arbiol, J (Arbiol, Jordi)[ 5,6,7 ] ; Llorca, J (Llorca, Jordi)[ 8,9 ] ; Liu, J (Liu, Jun)[ 3,4 ] ...更多内容
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ELECTROCHIMICA ACTA
卷: 349
文献号: 136369
DOI: 10.1016/j.electacta.2020.136369
出版年: JUL 20 2020
文献类型:Article
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摘要
Tin disulfide is a promising anode material for Li-ion batteries (LIB) owing to its high theoretical capacity and the abundance of its composing elements. However, bare SnS2 suffers from low electrical conductivity and large volume expansion, which results in poor rate performance and cycling stability. Herein, we present a solution-based strategy to grow SnS2 nanostructures within a matrix of porous g-C3N4 (CN) and high electrical conductivity graphite plates (GPs). We test the resulting nanocomposite as anode in LIBs. First, SnS2 nanostructures with different geometries are tested, to find out that thin SnS2 nanoplates (SnS2-NPLs) provide the highest performances. Such SnS2-NPLs, incorporated into hierarchical SnS2/CN/ GP nanocomposites, display excellent rate capabilities (536.5 mA h g(-1) at 2.0 A g(-1)) and an outstanding stability (similar to 99.7% retention after 400 cycles), which are partially associated with a high pseudocapacitance contribution (88.8% at 1.0 mV s(-1)). The excellent electrochemical properties of these nanocomposites are ascribed to the synergy created between the three nanocomposite components: i) thin SnS2-NPLs provide a large surface for rapid Li-ion intercalation and a proper geometry to stand volume expansions during lithiation/delithiation cycles; ii) porous CN prevents SnS2-NPLs aggregation, habilitates efficient channels for Li-ion diffusion and buffer stresses associated to SnS2 volume changes; and iii) conductive GPs allow an efficient charge transport. (c) 2020 Elsevier Ltd. All rights reserved.
关键词
作者关键词:Nanocomposite; Li-ion battery; Anode; Tin disulfide; Pseudocapacitance
KeyWords Plus:GRAPHITIC CARBON NITRIDE; REDUCED GRAPHENE OXIDE; HIGH-PERFORMANCE ANODE; LI-ION; IN-SITU; SNS2 NANOPARTICLES; G-C3N4 NANOSHEETS; RATE CAPABILITY; HIGH-CAPACITY; FUEL-CELLS
作者信息
通讯作者地址: Cabot, A (通讯作者)
显示更多Catalonia Inst Energy Res IREC, Barcelona 08930, Spain.
通讯作者地址: Liu, J (通讯作者)
显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
地址:
显示更多[ 1 ] Catalonia Inst Energy Res IREC, Barcelona 08930, Spain
显示更多[ 2 ] Univ Barcelona, Dept Engn Elect & Biomed, Barcelona 08028, Spain
显示更多[ 3 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 4 ] South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 5 ] CSIC, Catalan Inst Nanosci & Nanotechnol ICN2, Campus UAB, Barcelona 08193, Spain
显示更多[ 6 ] BIST, Campus UAB, Barcelona 08193, Spain
[ 7 ] ICREA, Pg Lluis Co 23, Barcelona 08010, Spain
显示更多[ 8 ] Univ Polittecn Catalunya, Inst Energy Technol, Dept Chem Engn, EEBE, Barcelona 08019, Spain
显示更多[ 9 ] Univ Polittecn Catalunya, Barcelona Res Ctr Multiscale Sci & Engn, EEBE, Barcelona 08019, Spain
电子邮件地址:msjliu@cut.edu.cn; acabot@irec.cat
基金资助致谢
基金资助机构显示详情授权号
European Union (EU)
Spanish Ministerio de Economia y Competitividad through the project SEHTOP
ENE2016-77798-C4-3-R
China Scholarship Council
201606500001
201804910551
National Natural Science Foundation of China
51771076
51621001
Chinese Government the young 1000 plan
Guangzhou Science and Technology Plan
201804010104
Guangdong Province Public Interest Research and Capacity Building
2017A010104004
GC
2017 SGR 128
Generalitat de Catalunya
2017 SGR 327
Spanish MINECO
ENE201785087-C3-3-R
Severo Ochoa program from Spanish MINECO
SEV-2017-0706
CERCA Programme/Generalitat de Catalunya
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出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Electrochemistry
Web of Science 类别:Electrochemistry