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Structural Design and Synthesis of an SnO2@C@Co-NC Composite as a High-Performance Anode Material for Lithium-Ion Batteries
Li, Qiongguang1,2; Wang, Yanhong2,3; Tan, Qiangqiang2,3; Zhong, Ziyi4,5; Su, Fabing2,3,6
2020-09-16
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
ISSN0947-6539
Pages10
AbstractTo overcome the drawbacks of the structural instability and poor conductivity of SnO2-based anode materials, a hollow core-shell-structured SnO2@C@Co-NC (NC=N-doped carbon) composite was designed and synthesized by employing the heteroatom-doping and multiconfinement strategies. This composite material showed a much-reduced resistance to charge transfer and excellent cycling performance compared to the bare SnO(2)nanoparticles and SnO2@C composites. The doped heteroatoms and heterostructure boost the charge transfer, and the porous structure shortens the Li-ion diffusion pathway. Also, the volume expansion of SnO(2)NPs is accommodated by the hollow space and restricted by the multishell heteroatom-doped carbon framework. As a result, this structured anode material delivered a high initial capacity of 1559.1 mA h g(-1)at 50 mA g(-1)and an initial charge capacity of 627.2 mA h g(-1)at 500 mA g(-1). Moreover, the discharge capacity could be maintained at 410.8 mA h g(-1)after 500 cycles with an attenuation rate of only 0.069 % per cycle. This multiconfined SnO2@C@Co-NC structure with superior energy density and durable lifespan is highly promising for the next-generation lithium-ion batteries.
Keywordcore-shell structures doping electrochemistry nanoparticles nanostructures
DOI10.1002/chem.202002583
Language英语
WOS KeywordMETAL-ORGANIC FRAMEWORKS ; SNO2 NANOPARTICLES ; CARBON NANOTUBE ; HOLLOW SPHERES ; BINDER-FREE ; MICROSPHERES ; NANOCOMPOSITE ; NANOCRYSTALS ; NANOSPHERES ; GROWTH
Funding ProjectNational Natural Science Foundation of China[51772295] ; GTIIT ; key ChE fund by Guangdong province
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; GTIIT ; key ChE fund by Guangdong province
WOS IDWOS:000569402700001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42099
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Yanhong; Zhong, Ziyi; Su, Fabing
Affiliation1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Zhongke Langfang Inst Proc Engn, Fenghua Rd 1, Langfang 065001, Hebei, Peoples R China
4.Guangdong Technion Israel Inst Technol GTIIT, Coll Engn, 241 Daxue Rd, Jinping Dist 515063, Shantou, Peoples R China
5.Technion Israel Inst Technol IIT, IL-32000 Haifa, Israel
6.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China
Recommended Citation
GB/T 7714
Li, Qiongguang,Wang, Yanhong,Tan, Qiangqiang,et al. Structural Design and Synthesis of an SnO2@C@Co-NC Composite as a High-Performance Anode Material for Lithium-Ion Batteries[J]. CHEMISTRY-A EUROPEAN JOURNAL,2020:10.
APA Li, Qiongguang,Wang, Yanhong,Tan, Qiangqiang,Zhong, Ziyi,&Su, Fabing.(2020).Structural Design and Synthesis of an SnO2@C@Co-NC Composite as a High-Performance Anode Material for Lithium-Ion Batteries.CHEMISTRY-A EUROPEAN JOURNAL,10.
MLA Li, Qiongguang,et al."Structural Design and Synthesis of an SnO2@C@Co-NC Composite as a High-Performance Anode Material for Lithium-Ion Batteries".CHEMISTRY-A EUROPEAN JOURNAL (2020):10.
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