Monodispersed Sulfur Nanoparticles for Lithium鈥揝ulfur Batteries with Theoretical Performance

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• 作者：Hongwei Chen ; Changhong Wang ; Weiling Dong ; Wei Lu ; Zhaolong Du ; Liwei Chen
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：January 14, 2015
• 年：2015
• 卷：15
• 期：1
• 页码：798-802
• 全文大小：426K
• ISSN：1530-6992

文摘

While Li鈥揝 batteries are poised to be the next generation high-density energy storage devices, low sulfur utilization and slow rate performance have limited their practical applications. Here, we report the synthesis of monodispersed S₈ nanoparticles (NPs) with different diameter and the nanosize dependent kinetic characteristics of the corresponding Li鈥揝 batteries. Most remarkably, 5 nm S NPs display the theoretical discharging/charging capacity of 1672 mAh g^鈥? at 0.1 C rate and a discharge capacity of 1089 mAh g^鈥? at 4 C.