Metal Organic Framework Nanorod Doped Solid Polymer Electrolyte with Decreased Crystallinity for High‐Performance All‐Solid‐State Lithium Batteries
Metal Organic Framework Nanorod Doped Solid Polymer Electrolyte with Decreased Crystallinity for High‐Performance All‐Solid‐State Lithium Batteries
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用于高性能全固态锂电池的结晶度降低的金属有机框架纳米棒掺杂固体聚合物电解质
DOI：
10.1002/celc.201901987
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发表时间：
2020-03
期刊：
影响因子：
4
通讯作者：
SUn Shi‐Gang
中科院分区：
文献类型：
--
作者：
Zhang Zheng;You Jin‐Hai;Zhang Shao‐Jian;Wang Chuan‐Wei;Zhou Yao;Li Jun‐Tao;Huang Ling;SUn Shi‐Gang
Poly(ethylene oxide) (PEO), an important solid polymer electrolyte (SPE) for solid‐state lithium batteries, suffers from low ionic conductivity and poor electrochemical stability; many inorganic solid compounds have been explored as fillers to address these issues. Herein, we report that Al‐metal organic framework (MOF) nanorods could work as efficient solid fillers to boost the electrochemical performance of PEO‐based SPEs. The addition of MOF nanorods was found to inhibit the crystallization of PEO and effectively weaken the interactions among the PEO chains, resulting in evidently enhanced ionic conductivity and improved electrochemical stability; moreover, when embedded in PEO, such Al‐MOF nanorods are microporous and micrometer long, which are expected to favor the transportation of Li+over the significantly more bulky anions TFSI−. Compared with pure PEO SPE, our optimal sample PEO‐MOF5%SPE has higher ion conductivity (2.09×10−5S/cm at 30 °C and 7.11×10−4S/cm 60 °C), a larger lithium‐ion transference number (0.46) and an enlarged electrochemical window (4.7 V versus Li/Li+). Accordingly, the cell of LiFePO4/PEO‐MOF5%/Li shows excellent cycle performance and rate performance. Our work proved the advantages of MOF particles as solid fillers towards high‐performance PEO‐based SPE, and we also put emphasis on the shape effect of the solid fillers on the lithium‐ion transference number and, thus, the electrochemical performance of the resulting SPE.
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影响因子：
6.6
作者：
Suriyakumar, Shruti;Gopi, Sivalingam;Stephan, A. Manuel
通讯作者：
Stephan, A. Manuel
影响因子：
10.8
作者：
Liu, Wei;Liu, Nian;Cui, Yi
通讯作者：
Cui, Yi
影响因子：
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作者：
Fang Zhang;Daguang Jiang;Xiaogang Zhang
通讯作者：
Fang Zhang;Daguang Jiang;Xiaogang Zhang
影响因子：
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作者：
Jian-jun Zhang;Xiaoling Zang;Huijie Wen;Tiantian Dong;J. Chai;Yang Li;Bingbing Chen;Jingwen Zhao-Jingwen
通讯作者：
Jian-jun Zhang;Xiaoling Zang;Huijie Wen;Tiantian Dong;J. Chai;Yang Li;Bingbing Chen;Jingwen Zhao-Jingwen
影响因子：
3.7
作者：
J. Cardoso;D. Nava;P. García-Morán;F. Hernández-Sánchez;B. Gómez;J. Vazquez‐Arenas;I. González-I.-Gonzále
通讯作者：
J. Cardoso;D. Nava;P. García-Morán;F. Hernández-Sánchez;B. Gómez;J. Vazquez‐Arenas;I. González-I.-Gonzále