CaltechAUTHORS
  A Caltech Library Service

Manipulating Oxidation of Silicon with Fresh Surface Enabling Stable Battery Anode

Ge, Gaofeng and Li, Guocheng and Wang, Xiancheng and Chen, Xiaoxue and Fu, Lin and Liu, Xiaoxiao and Mao, Eryang and Liu, Jing and Yang, Xuelin and Qian, Chenxi and Sun, Yongming (2021) Manipulating Oxidation of Silicon with Fresh Surface Enabling Stable Battery Anode. Nano Letters, 21 (7). pp. 3127-3133. ISSN 1530-6984. doi:10.1021/acs.nanolett.1c00317. https://resolver.caltech.edu/CaltechAUTHORS:20210322-101751350

[img] PDF (Experimental details and additional characterizations) - Supplemental Material
See Usage Policy.

816kB

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20210322-101751350

Abstract

Silicon (Si)-based material is a promising anode material for next-generation lithium-ion batteries (LIBs). Herein, we report the fabrication of a silicon oxide–carbon (SiO_x/C) nanocomposite through the reaction between silicon particles with fresh surface and H₂O in a mild hydrothermal condition, as well as conducting carbon coating synchronously. We found that controllable oxidation could be realized for Si particles to produce uniform SiO_x after the removal of the native passivation layer. The uniform oxidation and conductive coating offered the as-fabricated SiO_x/C composite good stability at both particle and electrode level over electrochemical cycling. The as-fabricated SiO_x/C composite delivered a high reversible capacity of 1133 mAh g⁻¹ at 0.5 A g⁻¹ with 89.1% capacity retention after 200 cycles. With 15 wt % SiO-x/C composite, graphite-SiO_x/C hybrid electrode displayed a high reversible specific capacity of 496 mAh g⁻¹ and stable electrochemical cycling with a capacity retention of 90.1% for 100 cycles.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acs.nanolett.1c00317DOIArticle
ORCID:
AuthorORCID
Fu, Lin0000-0001-6834-2881
Yang, Xuelin0000-0001-5626-701X
Qian, Chenxi0000-0003-4815-5565
Sun, Yongming0000-0001-8528-525X
Additional Information:© 2021 American Chemical Society. Received: January 26, 2021; Revised: March 15, 2021; Published: March 18, 2021. This work was supported by National Key R&D Program of China (2018YFB0905400), Major Technological Innovation Project of Hubei Science and Technology Department (2019AAA164). Y.S. acknowledges the financial support by the Innovation Fund of Wuhan National Laboratory for Optoelectronics of Huazhong University of Science and Technology. C.Q. acknowledges the support of the Natural Sciences and Engineering Research Council of Canada (NSERC Postdoctoral Fellowship). The authors would like to thank the Analytical and Testing Center of Huazhong University of Science and Technology (HUST) as well as the Center for Nanoscale Characterization and Devices of Wuhan National Laboratory for Optoelectronics (WNLO) for providing the facilities to conduct the characterizations. Author Contributions: G.G. and G.L. contributed equally to this work. The authors declare no competing financial interest.
Funders:
Funding AgencyGrant Number
National Key Research and Development Program of China2018YFB0905400
Major Technological Innovation Project of Hubei Science and Technology Department2019AAA164
Wuhan National LaboratoryUNSPECIFIED
Huazhong University of Science and TechnologyUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Subject Keywords:lithium-ion batteries, silicon-based anode, controllable oxidation, capacity, cycling stability
Issue or Number:7
DOI:10.1021/acs.nanolett.1c00317
Record Number:CaltechAUTHORS:20210322-101751350
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210322-101751350
Official Citation:Manipulating Oxidation of Silicon with Fresh Surface Enabling Stable Battery Anode. Gaofeng Ge, Guocheng Li, Xiancheng Wang, Xiaoxue Chen, Lin Fu, Xiaoxiao Liu, Eryang Mao, Jing Liu, Xuelin Yang, Chenxi Qian, and Yongming Sun. Nano Letters 2021 21 (7), 3127-3133; DOI: 10.1021/acs.nanolett.1c00317
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108505
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Mar 2021 19:47
Last Modified:15 Apr 2021 19:47

Repository Staff Only: item control page