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Open AccessCommunication

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
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Materials 2018, 11(8), 1338; https://doi.org/10.3390/ma11081338
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)
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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MDPI and ACS Style

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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