三维双孔径夹层状纳米多孔Cu/Cu<sub>6</sub>Sn<sub>5</sub>/Sn复合电极的制备及其电化学性能研究

陈雪; 刘文博; 董鑫; 成朋

doi:10.3969/j.issn.2096-1553.2018.05.011

September 2018

Article Contents

CHEN Xue, LIU Wenbo, DONG Xin and et al. Study on preparation and electrochemical properties of three-dimensional interlayer-shaped nanoporous Cu/Cu6Sn5/Sn composite electrode with bimodel pore size distribution[J]. Journal of Light Industry, 2018, 33(5): 83-89. doi: 10.3969/j.issn.2096-1553.2018.05.011

Citation: CHEN Xue, LIU Wenbo, DONG Xin and et al. Study on preparation and electrochemical properties of three-dimensional interlayer-shaped nanoporous Cu/Cu6Sn5/Sn composite electrode with bimodel pore size distribution[J]. Journal of Light Industry, 2018, 33(5): 83-89. doi: 10.3969/j.issn.2096-1553.2018.05.011 shu

Study on preparation and electrochemical properties of three-dimensional interlayer-shaped nanoporous Cu/Cu₆Sn₅/Sn composite electrode with bimodel pore size distribution

College of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, China

Received Date: 2017-03-16

Abstract

Three-dimensional (3D) nanoporous copper current collector with bimodel pore size distribution was fabricated by dealloying of Al-35Cu alloy, and the three-dimensional interlayer-shaped nanoporous Cu/Cu6Sn5/Sn composite electrode was obtained further by chemical deposition of Sn on the surface of 3D nanoporous copper, in which Cu6Sn5 transition layer could be formed via quick reaction between Sn and Cu. Subsequently, the electrode was characterized by electrochemical performance testing.The results showed that the initial discharge specific capacity was 2.53 mAh/cm2 and the charge specific capacity was 0.43 mAh/cm2 at a current density of 0.1 mA/cm2. After 300-week cycles, the discharge specific capacity was still 0.159 mAh/cm2, the charging specific capacity was 0.157 mAh/cm2, and the capacity retention rate was 36.5%, which indicated that the electrode had excellent electrochemical performance and had potential application prospects in the next generation high performance lithium ion battery.
- lithium ion battery,
- dealloying,
- chemical deposition,
- Cu/Cu₆Sn₅/Sn composite electrode,
- electrochemical property
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