Synthesis and ionic conductivity of a novel ionic liquid polymer electrolyte

被引：5

作者：

Zheng, Tao ^{[1
]}

Ren, Shitong ^{[1
]}

Zhou, Qian ^{[1
]}

Li, Qian ^{[2
]}

Zhang, Liaoyun ^{[1
]}

Li, Huayi ^{[2
]}

Lin, Yuan ^{[3
]}

机构：

[1] Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing 100190, Peoples R China

来源：

JOURNAL OF POLYMER RESEARCH | 2014年 / 21卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Ionic liquid polymer; Ionic conductivity; Hyperbanched structure; Anion exchange; N-PROPYLPIPERIDINIUM BIS(TRIFLUOROMETHANESULFONYL)IMIDE; BLEND ELECTROLYTES; BATTERY APPLICATIONS; MOLTEN-SALTS; LI BATTERY; DISSOCIATION; EXTRACTION;

D O I：

10.1007/s10965-014-0361-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Hyperbranched poly(glycidol) (HPG) containing hydroxyl groups is firstly synthesized via anionic polymerization, and then reacts with thionyl chloride to form chlorine end-terminated hyperbranched poly(glycidol) (HPG-Cl). Different ionic liquid polymers are synthesized from the reaction of HPG-Cl with N-methylimidazole and then anion exchange with hexafluorophosphoric acid and sodium tetrafluoroborate. The structure and properties of the obtained ionic liquid polymers are characterized by H-1 NMR, ATR-FTIR, DSC and TGA, respectively. Ionic conductivity of the polymer electrolytes composed of ionic liquid polymer and lithium bis(trifluoromethanesulfonimide) (LITFSI) is investigated by electrochemical impedance spectroscopy. The results show that the ionic conductivity of the prepared ionic liquid polymer electrolyte can reach 3.5 x 10(-4) Scm(-1) at 30 A degrees C when the weight ratio of ionic liquid polymer ([HPG-MeIm]BF4) to lithium salt (LiTFSI) is 4.5.

引用

页数：7

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