Research Progress on Multifunctional Modified Separator for Lithium–Sulfur Batteries
Ying Wang,
Rui Ai,
Fei Wang,
Xiuqiong Hu,
Yuejing Zeng,
Jiyue Hou,
Jinbao Zhao,
Yingjie Zhang,
Yiyong Zhang,
Xue Li
Affiliations
Ying Wang
National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Rui Ai
College of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, China
Fei Wang
National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Xiuqiong Hu
College of Electrical Information Engineering, Panzhihua University, Panzhihua 617000, China
Yuejing Zeng
Collaborative Innovation Center of Chemistry for Energy Materials, Provincial Government New Energy Vehicle Power Technology Joint Engineering Laboratory, State Key Laboratory of Physical Chemistry of Solid Surfaces, School of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Jiyue Hou
National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Jinbao Zhao
Collaborative Innovation Center of Chemistry for Energy Materials, Provincial Government New Energy Vehicle Power Technology Joint Engineering Laboratory, State Key Laboratory of Physical Chemistry of Solid Surfaces, School of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Yingjie Zhang
National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Yiyong Zhang
National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Xue Li
National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
Lithium–sulfur batteries (LSBs) are recognized as one of the second-generation electrochemical energy storage systems with the most potential due to their high theoretical specific capacity of the sulfur cathode (1675 mAhg−1), abundant elemental sulfur energy storage, low price, and green friendliness. However, the shuttle effect of polysulfides results in the passivation of the lithium metal anode, resulting in a decrease in battery capacity, Coulombic efficiency, and cycle stability, which seriously restricts the commercialization of LSBs. Starting from the separator layer before the positive sulfur cathode and lithium metal anode, introducing a barrier layer for the shuttle of polysulfides is considered an extremely effective research strategy. These research strategies are effective in alleviating the shuttle of polysulfide ions, improving the utilization of active materials, enhancing the battery cycle stability, and prolonging the cycle life. This paper reviews the research progress of the separator functionalization in LSBs in recent years and the research trend of separator functionalization in the future is predicted.
