High Initial Reversible Capacity and Long Life of Ternary SnO2-Co-carbon Nanocomposite Anodes for Lithium-Ion Batteries

Pan Deng; Jing Yang; Shengyang Li; Tian-E Fan; Hong-Hui Wu; Yun Mou; Hui Huang; Qiaobao Zhang; Dong-Liang Peng; Baihua Qu

doi:10.1007/s40820-019-0246-4

Nano-Micro Letters (Mar 2019)

High Initial Reversible Capacity and Long Life of Ternary SnO2-Co-carbon Nanocomposite Anodes for Lithium-Ion Batteries

Pan Deng,
Jing Yang,
Shengyang Li,
Tian-E Fan,
Hong-Hui Wu,
Yun Mou,
Hui Huang,
Qiaobao Zhang,
Dong-Liang Peng,
Baihua Qu

Affiliations

Pan Deng: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Department of Materials Science and Engineering, College of Materials, Xiamen University
Jing Yang: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Department of Materials Science and Engineering, College of Materials, Xiamen University
Shengyang Li: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Department of Materials Science and Engineering, College of Materials, Xiamen University
Tian-E Fan: College of Automation and Key Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications
Hong-Hui Wu: Department of Chemistry, University of Nebraska-Lincoln
Yun Mou: School of Mechanical Science and Engineering, Huazhong University of Science and Technology
Hui Huang: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Department of Materials Science and Engineering, College of Materials, Xiamen University
Qiaobao Zhang: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Department of Materials Science and Engineering, College of Materials, Xiamen University
Dong-Liang Peng: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Department of Materials Science and Engineering, College of Materials, Xiamen University
Baihua Qu: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Department of Materials Science and Engineering, College of Materials, Xiamen University

DOI: https://doi.org/10.1007/s40820-019-0246-4
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 13

Abstract

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Abstract The two major limitations in the application of SnO2 for lithium-ion battery (LIB) anodes are the large volume variations of SnO2 during repeated lithiation/delithiation processes and a large irreversible capacity loss during the first cycle, which can lead to a rapid capacity fade and unsatisfactory initial Coulombic efficiency (ICE). To overcome these limitations, we developed composites of ultrafine SnO2 nanoparticles and in situ formed Co(CoSn) nanocrystals embedded in an N-doped carbon matrix using a Co-based metal–organic framework (ZIF-67). The formed Co additives and structural advantages of the carbon-confined SnO2/Co nanocomposite effectively inhibited Sn coarsening in the lithiated SnO2 and mitigated its structural degradation while facilitating fast electronic transport and facile ionic diffusion. As a result, the electrodes demonstrated high ICE (82.2%), outstanding rate capability (~ 800 mAh g−1 at a high current density of 5 A g−1), and long-term cycling stability (~ 760 mAh g−1 after 400 cycles at a current density of 0.5 A g−1). This study will be helpful in developing high-performance Si (Sn)-based oxide, Sn/Sb-based sulfide, or selenide electrodes for LIBs. In addition, some metal organic frameworks similar to ZIF-67 can also be used as composite templates.

Published in Nano-Micro Letters

ISSN: 2311-6706 (Print); 2150-5551 (Online)
Publisher: SpringerOpen
Country of publisher: Germany
LCC subjects: Technology
Website: http://www.springer.com/40820

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