Sub-nanometer structured silicon-carbon composite nanolayers armoring on graphite for fast-charging and high-energy-density lithium-ion batteries

Li, Zhen-Wei1,2; Han, Mei-Sheng1,3; Yu, Jie1,2

2023-09-01

10.1007/s12598-023-02395

RARE METALS   Impact Factor & Quartile

1001-0521

1867-7185

["Silicon/carbon composites are promising alternatives to current graphite anodes in commercial lithium-ion batteries (LIBs) because of their high capacity and excellent safety. Nevertheless, the unsatisfactory fast-charging capability and cycle stability of Si/C composites caused by slow charge transport capability and huge volume change under industrial electrode conditions severely hamper their development. Here, a novel Si/C anode was fabricated by homogeneously depositing amorphous C-Si nanolayers on graphite (C-Si@graphite). C-Si nanolayers with uniformly dispersed sub-nanometer Si particles in 3D carbon skeleton significantly boost electron and Li-ion transport and efficiently relieve Si's agglomeration and volume change. As a result, the tailored C-Si@graphite electrodes show an excellent rate capacity (760.3 mAh & BULL;g-1 at 5.0C) and long cycle life of over 1000 cycles at 1.0C and 800 cycles at 2.0C under industrial electrode conditions. In addition, the assembled full cells (C-Si@graphite, anode; Li[Ni0.8Co0.1Mn0.1]O2, cathode) present superior fast-charging capability (240.4 Wh & BULL;kg-1, charging for 16.2 min, 3.0C) and long cycle life (80.7% capacity retention after 500 cycles at 1.0C), demonstrating the massive potential of C-Si@graphite for practical application.","ç¡\u0085/(Si/C)(sic)(sic)æ\u009D\u0090(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)é\u0094\u0082(sic)offspring(sic)æ± (sic)(sic)(sic)é\u0098³(sic)(sic) (sic)(sic)(sic)(sic)æ\u009B¿(sic)(sic)(sic).(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), Si/C (sic)(sic)(sic)(sic)(sic)(sic)è\u008D·(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic) (sic)(sic), (sic)(sic)(sic)å¿«é\u0080\u009F(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)å\u009D\u0087å\u008C\u0080(sic)(sic)æ\u0099¶(sic)C-Si (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)Si/C é\u0098³(sic)(CSi@graphite).(sic)(sic), (sic)(sic)(sic)Si ç²\u0092offspring(sic)(sic)(sic)骨(sic)(sic)å\u009D\u0087å\u008C\u0080(sic)(sic)(sic)(sic)C-Si (sic)(sic)(sic), (sic)è\u0091\u0097(sic) (sic)(sic)(sic)offspring(sic)é\u0094\u0082(sic)offspring(sic)(sic)(sic), (sic)(sic)ç¼\u0093(sic)(sic)Si (sic)(sic)è\u0081\u009A(sic)(sic)(sic)(sic)(sic)."]

Si/C anode Sub-nanometer Si Fast-charging capability Lithium-ion batteries (LIBs)

SCI

English

Corresponding

This study was financially supported by Guangdong Basic and Applied Basic Research Foundation (No. 2020A1515110762).[2020A1515110762]

Materials Science ; Metallurgy & Metallurgical Engineering

Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:001069065400001

NONFERROUS METALS SOC CHINA

MATERIALS SCIENCE

Web of Science

1.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
2.Harbin Inst Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Semicond Optoelect Mat & In, Shenzhen Engn Lab Supercapacitor Mat, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Li, Zhen-Wei,Han, Mei-Sheng,Yu, Jie. Sub-nanometer structured silicon-carbon composite nanolayers armoring on graphite for fast-charging and high-energy-density lithium-ion batteries[J]. RARE METALS,2023.

Li, Zhen-Wei,Han, Mei-Sheng,&Yu, Jie.(2023).Sub-nanometer structured silicon-carbon composite nanolayers armoring on graphite for fast-charging and high-energy-density lithium-ion batteries.RARE METALS.

Li, Zhen-Wei,et al."Sub-nanometer structured silicon-carbon composite nanolayers armoring on graphite for fast-charging and high-energy-density lithium-ion batteries".RARE METALS (2023).