Communication—A Simple and Scalable Pre-Lithiation Approach for High Energy and Low Cost Lithium Ion Sulfur Batteries
Communication—A Simple and Scalable Pre-Lithiation Approach for High Energy and Low Cost Lithium Ion Sulfur Batteries
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DOI：
10.1149/1945-7111/ab8408
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发表时间：
2020-04
影响因子：
3.9
通讯作者：
Chao Shen;D. Ye;Liming Jin;P. Andrei;Jim P. Zheng
中科院分区：
文献类型：
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作者：
Chao Shen;D. Ye;Liming Jin;P. Andrei;Jim P. Zheng
锂离子硫电池具有成本低、寿命长等优点，而锂离子硫电池的预锂化是锂离子硫电池开发的关键技术。本文中，将通过与锂箔直接接触的简单且可扩展的预锂化方法应用于硫-聚丙烯腈（S-PAN）阴极以构建LISB，其表现出1367 mAh g-1的初始容量并在100次循环后保持1192 mAh g-1。此外，我们证明了所提出的方法在两个电极上的性能增强的可行性。理论估算进一步证明了该系统以低成本实现高比容量和良好循环寿命的潜力。
Pre-lithiation is an essential technique for development of Li-ion sulfur batteries (LISBs), which have lower cost and higher durability than conventional Li-ion batteries. Herein, a simple and scalable pre-lithiation approach by direct contact with lithium foil is applied to a sulfur-polyacrylonitrile (S-PAN) cathode to construct LISBs, which exhibit an initial capacity of 1367 mAh g− 1 and maintain 1192 mAh g− 1 after 100 cycles. Moreover, we demonstrate the feasibility of proposed method on both electrodes for performance enhancement. The theoretical estimation further demonstrates the potential of the system for achieving high specific capacity and good cycle life at low cost.