| 郑智慧,谷 峰,赵晓琳,王有伟,高彦峰,刘建军.化学通报,2018,81(2):99-108,181. |
| 锂硫电池正极材料研究进展 |
| Progress of Lithium Sulfur Battery Cathode Materials |
| 投稿时间：2017-08-18 修订日期：2017-10-18 |
| DOI： |
| 中文关键词: Li-S电池 正极材料 表面包覆 表面吸附 表面催化 循环性能 |
| 英文关键词:Li-S battery shuttle effect surface coating surface adsorption surface catalysis |
| 基金项目:上海市科学技术委员会研究资助(16DZ2260600) |
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| 中文摘要: |
| 电动汽车行业的迅速发展，逐步提高了对二次电池容量的需求，因此急需发展新型高容量锂电池。Li-S电池具有的高理论比容量（1675mA/g）和高理论比能量（2600Wh/kg），使其能够实现锂离子电池3～5 倍的能量密度。但是正极长链聚硫锂溶解引起的容量衰减快、循环寿命短等因素限制了锂硫电池的实用化进程。本文针对正极聚硫锂溶解问题，从正极材料表面包覆、表面吸附、表面催化的角度对近年来提高Li-S电池循环性能的正极材料研究思路和研究进展进行综述分析，最后对提高Li-S电池性能的发展趋势提出展望。 |
| 英文摘要: |
| The rapid development of electric vehicle industries gradually increase the demand for secondary battery capacity, so it is urgent to develop new high-capacity lithium batteries. The Li-S battery has a high theoretical specific capacity (1675 mAh / g) and a high theoretical specific energy (2600 Wh / kg) that enables it to achieve an 3 to 5 times energy density of the lithium ion battery. However, many factors such as the capacity decay and the short cycle life caused by the dissolution and shuttling of the long-chain polysulfides limit practical applications of the lithium-sulfur battery. In this paper, the main strategies and relative progress to solve the “shuttle effect” are reviewed and analyzed from the aspects of surface coating, surface adsorption, and surface catalysis. At last, the developing tendencies of Li-S battery in future are also discussed. |
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