用于硅基负极锂离子电池的三维铜箔-粉末烧结集流体
Three-Dimensional Copper Foil-Powder Sintering Current Collector for a Silicon-Based Anode Lithium-Ion Battery.
作者信息
Long Jin, Liu Huilong, Xie Yingxi, Tang Weijin, Fu Ting, Tang Yong, Lu Longsheng, Ding Xinrui, Tang Xingxian
机构信息
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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.
出版信息
Materials (Basel). 2018 Aug 2;11(8):1338. doi: 10.3390/ma11081338.
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%.
在这项工作中，我们提出了一种简便的方法来制造用于硅基阳极锂离子电池的三维铜箔-粉末烧结集流体（CFSCC）。我们发现CFSCC适合作为硅基浆料电极，而这种浆料状电极在工业生产中常用。与平面集流体相比，CFSCC在充放电过程中能更好地抑制硅的体积变化。使用CFSCC的电极在40次循环后其电容仍高达其第二次循环时的92.2%，而使用平面集流体的电极的电容仅保持在50%。
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