Structure and electrochemical properties of composite polymer electrolyte based on poly vinylidene fluoride-hexafluoropropylene/titania-poly(methyl methacrylate) for lithium-ion batteries

被引：36
|
作者：
Cao, Jiang [1 ,2 ]
Wang, Li [2 ,5 ]
Fang, Mou [2 ,5 ]
He, Xiangming [2 ,3 ]
Li, Jianjun [2 ,5 ]
Gao, Jian [2 ,5 ]
Deng, Lingfeng [4 ]
Wang, Jianlong [2 ]
Chen, Hong [1 ,2 ,4 ]
机构：
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[2] Tsinghua Univ, Beijing Key Lab Fine Ceram, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
[3] Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China
[4] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China
[5] Huadong Inst Lithium Ion Battery, Zhangjiagang 215600, Jiangsu, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2014年 / 246卷
关键词：
Poly vinylidene fluoride-hexafluoropropylene; Composite polymer electrolyte; Organic/inorganic hybrid material; Lithium-ion batteries; GEL ELECTROLYTE; NANOCOMPOSITE; CONDUCTIVITY; TRANSPORT; MEMBRANE; ACID;
D O I：
10.1016/j.jpowsour.2013.07.107
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Titania-poly(methyl methacrylate) (PMMA) organic inorganic hybrid material is synthesized via in situ polymerization. The hybrid material is employed to prepare poly vinylidene fluoride-hexafluoropropylene (PVdF-HFP) composite polymer electrolyte. The effect of the hybrid material is investigated by SEM, TG-DSC, AC impedance and charge/discharge cycling tests. The results demonstrate that the inorganic organic hybrid material as additive increases the porosity, pore size and electrolyte uptake of the PVdF-HFP composite polymer electrolyte membrane, so that the ionic conductivity of the composite polymer electrolyte membrane is improved. The performance enhancement of the composite polymer electrolyte is confirmed by an electrochemical test using LiCoO2/Li cells in the voltage range of 2.75-4.4 V. This study shows that titania-PMMA hybrid material is a promising additive for PVDF-HFP composite polymer electrolyte for Li-ion batteries. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：499 / 504
页数：6
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