Lithium–sulfur batteries are a promising energy-storage technology due to their relatively low cost and high theoretical energy density. However, one of their major technical problems is the shuttling of soluble polysulfides between electrodes, resulting in rapid capacity fading. Here, we present a metal–organic framework (MOF)-based battery separator to mitigate the shuttling problem. We show that the MOF-based separator acts as an ionic sieve in lithium–sulfur batteries, which selectively sieves Li+ ions while e ciently suppressing undesired polysulfides migrating to the anode side. When a sulfur-containing mesoporous carbon material (approximately 70 wt% sulfur content) is used as a cathode composite without elaborate synthesis or surface modification, a lithium–sulfur battery with a MOF-based separator exhibits a low capacity decay rate (0.019% per cycle over 1,500 cycles). Moreover, there is almost no capacity fading after the initial 100 cycles. Our approach demonstrates the potential for MOF-based materials as separators for energy-storage applications.
资源简介：Lithium–sulfur batteries are a promising energy-storage technology due to their relatively low cost and high theoretical energy density. However, one of their major technical problems is the shuttling of soluble polysulfides between electr...
上传时间： 2017-11-23
上传用户：653357637
资源简介：锂离子电池－应用与实践
上传时间： 2013-04-15
上传用户：eeworm
资源简介：锂离子电池
上传时间： 2013-07-29
上传用户：eeworm
资源简介：锂离子电池保护控制芯片sd03p0xx应用手册
上传时间： 2013-05-21
上传用户：eeworm
资源简介：锂离子电池的使用
上传时间： 2013-04-15
上传用户：eeworm
资源简介：锂离子电池－应用与实践
上传时间： 2013-07-11
上传用户：eeworm
资源简介：锂离子电池
上传时间： 2013-07-12
上传用户：eeworm
资源简介：专辑类-实用电子技术专辑-385册-3.609G 锂离子电池－应用与实践-417页-14.5M.pdf
上传时间： 2013-05-23
上传用户：1051290259
资源简介：专辑类-实用电子技术专辑-385册-3.609G 锂离子电池-430页-6.9M.pdf
上传时间： 2013-04-24
上传用户：x4587
资源简介：TP4057 一款完整的单节锂离子电池充电器，带电池正负极反接保护，采用恒定电流/恒定电压线性控制。其SOT封装与较少的外部元件数目使得TP4057 便携式应用的理想选择。TP4
上传时间： 2013-08-04
上传用户：qiuqing
