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Materials (Basel). 2018 Aug 2;11(8). pii: E1338. doi: 10.3390/ma11081338.

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

Author information

1
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China. longjin@scut.edu.cn.
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. huiloongliu@gmail.com.
3
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. xieyingxi@scut.edu.cn.
4
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. tang0703@foxmail.com.
5
Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, Wuhan 430081, China. futing1234gh@163.com.
6
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. ytang@scut.edu.cn.
7
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. meluls@scut.edu.cn.
8
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. dingxr@scut.edu.cn.
9
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. xingxian.tang@foxmail.com.

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%.

KEYWORDS:

current collector; cycle performance; foil-powder sintering; lithium-ion battery; silicon

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