| 高性能锂硫电池正极复合材料研究现状 |
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| 引用本文： | 秦海超,燕映霖,杨蓉,李巧乐,王岩,陈利萍.高性能锂硫电池正极复合材料研究现状[J].电源学报,2018,16(6):179-185. |
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| 作者姓名： | 秦海超 燕映霖 杨蓉 李巧乐 王岩 陈利萍 |
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| 作者单位： | 西安理工大学材料科学与工程学院, 西安 710048,西安理工大学材料科学与工程学院, 西安 710048,西安理工大学理学院化学电源研究所, 西安 710048,西安理工大学材料科学与工程学院, 西安 710048,西安理工大学材料科学与工程学院, 西安 710048,西安理工大学材料科学与工程学院, 西安 710048 |
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| 基金项目： | 国家国际科技合作专项资助项目（2015DFR50350）；陕西省教育厅自然科学专项资助项目（15JK1536，15JK1538） |
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| 摘 要： | 锂硫电池具有理论比容量高（1 675 mA·h/g）、硫资源丰富、环境友好无毒和价格低廉等优点，是下一代二次电池的研究重点。单质硫作为锂硫电池正极材料时，其导电性差、中间产物溶解及放电过程体积膨胀导致的电化学性能衰减，严重制约着锂硫电池的商品化。对单质硫进行复合是目前主要的改性方法和研究热点。综述了吸附型、包覆型和多元复合型等多种硫基正极复合材料的研究现状，分析了复合材料微观结构对其电化学性能的影响，并展望了硫基正极复合材料及锂硫电池的发展前景。
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| 关 键 词： | 锂硫电池 正极材料 复合材料 微观结构 |
| 收稿时间： | 2016/9/28 0:00:00 |
| 修稿时间： | 2018/7/6 0:00:00 |
Research Status of Cathode Composite Materials for High-performance Lithium-sulfur Batteries |
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| QIN Haichao,YAN Yinglin,YANG Rong,LI Qiaole,WANG Yan and CHEN Liping.Research Status of Cathode Composite Materials for High-performance Lithium-sulfur Batteries[J].Journal of power supply,2018,16(6):179-185. |
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| Authors: | QIN Haichao YAN Yinglin YANG Rong LI Qiaole WANG Yan and CHEN Liping |
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| Affiliation: | School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China,School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China,Institute of Chemical Power Sources, School of Sciences, Xi''an University of Technology, Xi''an 710048, China,School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China,School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China and School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China |
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| Abstract: | Lithium-sulfur(Li-S) batteries have many advantages, such as higher theoretical capacity(1 675 mAh/g), abundant sources of S, environmental friendliness and nontoxicity, as well as low cost. Therefore, they have become a research focus of rechargeable battery in the next generation. When elemental sulfur is used as cathode material for Li-S batteries, it has several disadvantages, including poor electrical conductivity, dissolution of mid-product, and deterioration of electrochemical performance due to volume expansion during discharging, which seriously restrict the commercialization of Li-S batteries. At present, sulfur-based composite is one of the main modification methods and a hot research spot. In this paper, the research status of sulfur-based cathode composite materials was reviewed, including types of adsorption, coating, and multi-component; the effect of composite microstructure on the electrochemical performance was analyzed; moreover, the development outlook of the sulfur-based cathode composite materials and Li-S batteries was provided. |
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| Keywords: | lithium-sulfur battery cathode material composite material microstructure |
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