Phase behaviors of polymer blend(PEO-PPO) electrolyte/LiCF3SO3 systems in lithium battery

被引：6

作者：

Choi, YS

Bae, YC ^{[1
]}

Sun, YK

机构：

[1] Hanyang Univ, Div Chem Engn, Seoul 133791, South Korea

[2] Hanyang Univ, Mol Thermodynam Lab, Seoul 133791, South Korea

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2005年 / 98卷 / 05期

关键词：

polyelectrolytes; melting point; molecular dynamics; modeling;

D O I：

10.1002/app.22418

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polymer blend (poly(ethylene oxide) (PEO)poly(propylene oxide) (PPO)) systems with two different mole ratios, complexed with LiCF3SO3 salt, have been characterized at various temperatures and compositions using a thermo-optical analysis (TOA) technique. We also developed a new melting point depression theory based on the modified perturbed hard sphere chain model to interpret phase behavior of polymer blend electrolyte systems. The obtained results show that the eutectic points move toward higher T-m and lower weight fraction of salt with decreasing PEO mole ratio and also indicate that the mole ratio of PEO-PPO for each polymer blend plays an important role in determining the eutectic point of the polymer blend system. (c) 2005 Wiley Periodicals, Inc.

引用

页码：2314 / 2319

页数：6

共 21 条

[1] Structural, morphological and electrical characterization of polymer electrolytes based on PEO/PPO blends [J].