Metal organic framework laden poly(ethylene oxide) based composite electrolytes for all-solid-state Li-S and Li-metal polymer batteries
Metal organic framework laden poly(ethylene oxide) based composite electrolytes for all-solid-state Li-S and Li-metal polymer batteries
复制标题
DOI：
10.1016/j.electacta.2018.08.012
复制
发表时间：
2018-09-20
影响因子：
6.6
通讯作者：
Stephan, A. Manuel
中科院分区：
文献类型：
--
作者：
Suriyakumar, Shruti;Gopi, Sivalingam;Stephan, A. Manuel
在这项工作中，采用铝对苯二甲酸金属有机骨架（Al-TPAMOF）负载的复合聚合物膜作为电解质的全固态锂硫（Li-S）和锂金属（Li-metal）聚合物电池的可能性进行了探索。制备的复合聚合物电解质（CPE）基于具有双（三氟甲烷）磺酰亚胺锂（LiTFSI）和Al-TPA-MOF的聚（环氧乙烷）（PEO）网络，在高达270 ℃下具有机械稳健性和热稳定性，并且在60 ℃下提供约0.1 mS cm（-1）的可观的离子电导率。CPE与锂金属阳极的增强的相容性归因于Al-TPA-MOF的清除作用。组装了实验室规模的全固态Li-S和Li-金属聚合物电池，其比容量分别超过800和130 mAh g（-1），并且即使在60摄氏度下长时间循环时也具有稳定的性能，这上级类似系统的早期报告。(C)2018爱思唯尔有限公司版权所有
In this work, the possibility of employing aluminium terephthalic acid metal organic framework (Al-TPAMOF)-laden composite polymer membranes as electrolyte for all-solid-state lithium-sulfur (Li-S) and lithium-metal (Li-metal) polymer batteries is explored. The prepared composite polymer electrolytes (CPEs) based on a poly(ethylene oxide) (PEO) network with lithium bis(trifluoromethane)sulfonimide (LiTFSI) and Al-TPA-MOF are mechanically robust and thermally stable up to 270 degrees C, and provide appreciable ionic conductivity in the order of 0.1 mS cm(-1) at 60 degrees C. The enhanced compatibility of CPEs with the lithium metal anode is attributed to the scavenging effect of Al-TPA-MOF. Laboratory scale all-solid-state Li-S and Li-metal polymer cells are assembled, which deliver specific capacities exceeding 800 and 130 mAh g(-1), respectively, and a stable performance upon prolonged cycling even at 60 degrees C, which is superior to earlier reports on similar systems. (C) 2018 Elsevier Ltd. All rights reserved.