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中文摘要：
为提高硅基阳极的电化学性能,采用激光加工制备表面具有盲孔的铜集流体。将具有盲孔的铜集流体及表面光滑的铜集流体制成电极片,并组装成纽扣电池进行充放电循环测试。与表面光滑的铜集流体相比,多孔铜集流体显示出性能优势。电压—容量曲线表明,带有盲孔的集流体可以保持电极结构,进而保证较小的界面接触电阻。结果表明:多孔铜集流体可以提高硅基阳极的循环性能和库伦效率。
英文摘要：
To enhance the electrochemical performance of silicon-based anode, a Cu current collector with blind holes (CCBH) was fabricated by laser machining. The electrodes were composed of CCBH and smooth current collector, and cells assembled with electrodes were tested by charge-discharge cycling. In comparison with smooth current collector, the CCBH exhibits performance superiority. The curves of voltage-capacity indicate that CCBH can keep electrode structure to offer low contact resistance. The results show that CCBH can improve the cycle performance and coulomb efficiency of silicon-based anode.
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