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Materials 2018, 11(8), 1338; https://doi.org/10.3390/ma11081338

Three-Dimensional Copper Foil-Powder Sintering Current Collector for a Silicon-Based Anode Lithium-Ion Battery

1
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
2
Key Laboratory of Surface Functional Structure Manufacturing of Guangdong Higher Education Institutes, School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China
3
Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, Wuhan 430081, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 27 June 2018 / Revised: 28 July 2018 / Accepted: 31 July 2018 / Published: 2 August 2018
(This article belongs to the Section Manufacturing Processes and Systems)
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Abstract

In this work, we propose a facile method for manufacturing a three-dimensional copper foil-powder sintering current collector (CFSCC) for a silicon-based anode lithium-ion battery. We found that the CFSCC is suitable as a silicon-based paste electrode, and the paste-like electrodes are commonly used in industrial production. Compared with flat current collectors, the CFSCC better constrained the silicon volume change during the charging-discharging process. The capacitance of electrodes with CFSCC remained as high as 92.2% of its second cycle after 40 cycles, whereas that of electrodes with a flat current collector only remained at 50%. View Full-Text
Keywords: lithium-ion battery; current collector; foil-powder sintering; silicon; cycle performance lithium-ion battery; current collector; foil-powder sintering; silicon; cycle performance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Long, J.; Liu, H.; Xie, Y.; Tang, W.; Fu, T.; Tang, Y.; Lu, L.; Ding, X.; Tang, X. Three-Dimensional Copper Foil-Powder Sintering Current Collector for a Silicon-Based Anode Lithium-Ion Battery. Materials 2018, 11, 1338.

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