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Laser Porosificated Silicon Anodes for Lithium Ion Batteries
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-09-05 , DOI: 10.1002/aenm.201701705 Christian Sämann 1 , Katerina Kelesiadou 1 , Seyedeh Sheida Hosseinioun 2 , Mario Wachtler 2 , Jürgen R. Köhler 1 , Kai Peter Birke 1 , Markus B. Schubert 1 , Jürgen H. Werner 1
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-09-05 , DOI: 10.1002/aenm.201701705 Christian Sämann 1 , Katerina Kelesiadou 1 , Seyedeh Sheida Hosseinioun 2 , Mario Wachtler 2 , Jürgen R. Köhler 1 , Kai Peter Birke 1 , Markus B. Schubert 1 , Jürgen H. Werner 1
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This study presents the first laser porosificated silicon anode for lithium‐ion batteries. The pulsed laser induced pore creation improves the cycling stability of the d = 210 nm thick sputtered thin film anodes compared to plain Si. Galvanostatic cycling with a charge capacity limited to C = 932 mAh g−1 and a 2C current rate shows a stable cycling for more than N = 600 cycles. After N = 3000 cycles the laser porosificated and crystallized Si has a remaining capacity of C3000 > 120 mAh g−1. Postmortem scanning electron microscopy images after N = 3000 cycles prove that the laser porosification reduces cracks in the active layer.
中文翻译：
锂离子电池用激光打孔的硅阳极
这项研究提出了首个用于锂离子电池的激光多孔硅阳极。与纯Si相比，脉冲激光诱导的孔生成可改善d = 210 nm厚溅射薄膜阳极的循环稳定性。充电容量限制为C = 932 mAh g -1和2 C电流速率的恒电流循环显示超过N = 600循环的稳定循环。在N＝ 3000次循环之后，经激光多孔化和结晶化的Si具有的剩余容量为C 3000 > 120 mAh g -1。N后的验尸扫描电子显微镜图像 = 3000次循环证明激光孔隙化减少了活性层中的裂纹。
更新日期：2017-09-05
中文翻译：
锂离子电池用激光打孔的硅阳极
这项研究提出了首个用于锂离子电池的激光多孔硅阳极。与纯Si相比，脉冲激光诱导的孔生成可改善d = 210 nm厚溅射薄膜阳极的循环稳定性。充电容量限制为C = 932 mAh g -1和2 C电流速率的恒电流循环显示超过N = 600循环的稳定循环。在N＝ 3000次循环之后，经激光多孔化和结晶化的Si具有的剩余容量为C 3000 > 120 mAh g -1。N后的验尸扫描电子显微镜图像 = 3000次循环证明激光孔隙化减少了活性层中的裂纹。
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