A Superior Polymer Electrolyte with Rigid Cyclic Carbonate Backbone for Rechargeable Lithium Ion Batteries

被引:166
作者
Chai, Jingchao [1 ,3 ]
Liu, Zhihong [1 ]
Zhang, Jianjun [1 ,3 ]
Sun, Jinran [2 ]
Tian, Zeyi [2 ]
Ji, Yanying [1 ]
Tang, Kun [2 ]
Zhou, Xinhong [2 ]
Cui, Guanglei [1 ]
机构
[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Ind Energy Storage Technol Inst, Qingdao 266101, Peoples R China
[2] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
美国国家科学基金会;
关键词
lithium ion battery; polymer electrolyte; poly(vinylene carbonate); poly(vinylidene fluoride-h&afluoropropylene); in situ polymerization; VINYLENE CARBONATE; ELECTROCHEMICAL PERFORMANCE; POSITIVE ELECTRODE; STABILITY; CATHODE; ANODE;
D O I
10.1021/acsami.7b02844
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The fabricating process of Well-known Bellcore poly(vinylidene fluoride-hexaflutrropropyleoe) (PVcIF-HFP)-based polyrner, electrolytes is very complicated, tedious, and expensive owing to containing a large amount of fluorine substituents. Herein, a novel kind of poly(vinylene carbonate) (PVCA)-based polymer electrolyte is developed via a facile in situ polymerization method, which possesses the merits of good interfacial compatibility with electrodes. In addition, this polymer electrolyte presents a high ionic conductivity of 5.59 X 10(-4) S Cm-1 and a wide electrochemical stability window exceeding 4.8 V vs Li+/Li at ambient temperature. In addition, the rigid cyclic carbonate backbone of poly(vinylene carbonate) endows polymer electrolyte a superior mechanical property. The LiFe0.2Mn0.8PO4/graphite lithium ion batteries using this polymer electrolyte deliver good rate capability and excellent cyclability at room temperature. The superior performance demonstrates that the PVCA-based electrolyte via in situ polymerization is a potential alternative polymer elettrolyte for high-performance rechargeable lithium ion batteries.
引用
收藏
页码:17897 / 17905
页数:9
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