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A flexible and conductive connection introduced by cross-linked CNTs between submicron Si@C particles for better performance LIB anode
Zhou, Qiqi1,2,3; Liu, Junhao1,2; Gong, Xuzhong1,2,3; Wang, Zhi1,2,3
2021-04-21
Source PublicationNANOSCALE ADVANCES
ISSN2516-0230
Volume3Issue:8Pages:2287-2294
Abstract

To improve the inevitable capacity fading issues faced by traditional submicron Si@C electrodes used as anode materials in LIBs, a flexible and conductive connection design is proposed and realized by a solid-state growth approach. In this construction, Si@C is entangled into in situ synthesized carbon nanotube-based network to form a highly connective Si@C/CNTs composite. The interwoven carbon-nanotubes having tight linkages with Si@C contribute to ensure the charge transfer pathway within Si@C particles and accommodate the volume expansion during cycling. The Co/N co-doping further facilitates the transportation of Li ions. As expected, the Si@C/CNT electrode shows improved conductivity and long-term cyclic stability with a high-capacity retention ratio of 80.7% after 500 cycles at 0.5 A g(-1). In this study, the flexible and conductive connection design realized by the in situ synthesis of CNTs can provide some reference to the improvement of alloy-type anode materials and not just Si-based anode materials for LIBs.

DOI10.1039/d1na00012h
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000641547400011
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48409
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Junhao; Wang, Zhi
Affiliation1.Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Qiqi,Liu, Junhao,Gong, Xuzhong,et al. A flexible and conductive connection introduced by cross-linked CNTs between submicron Si@C particles for better performance LIB anode[J]. NANOSCALE ADVANCES,2021,3(8):2287-2294.
APA Zhou, Qiqi,Liu, Junhao,Gong, Xuzhong,&Wang, Zhi.(2021).A flexible and conductive connection introduced by cross-linked CNTs between submicron Si@C particles for better performance LIB anode.NANOSCALE ADVANCES,3(8),2287-2294.
MLA Zhou, Qiqi,et al."A flexible and conductive connection introduced by cross-linked CNTs between submicron Si@C particles for better performance LIB anode".NANOSCALE ADVANCES 3.8(2021):2287-2294.
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