【摘 要】
：
Lithium sulfur batteries attract great attention due to their high energy density,while the real applications are still hindered by the rapid capacity degradation.Despite great effort devoted to solvi
【机 构】
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Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical
【出 处】
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The 6th International Conference on Nanoscience and Technolo
论文部分内容阅读
Lithium sulfur batteries attract great attention due to their high energy density,while the real applications are still hindered by the rapid capacity degradation.Despite great effort devoted to solving the polysulfide shuttle between the cathode and anode electrodes,it remains as a serious challenge to build high-stable lithium sulfur battery,which related to the diffusion and reaction between polysulfides and the metal lithium anode.We proposed a strategy of introducing an ion selective membrane to improve the stability and coulombic efficiency of lithium sulfur battery.Generally,porous polymer membrane serves as membranes in batteries to avoid the short circuit between anode and cathode electrodes,which cannot stop the shuttle effect.By the introduction of permselective functional layer,the polysulfide anions can be confined in the cathode side,which would favor the cyclic stability and lower self-discharge performance.
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