Enhanced ionic conductivity of polymer electrolytes containing nanocomposite SiO2 particles -: art. no. 266104

被引：224

作者：

Nan, CW ^{[1
]}

Fan, LZ

Lin, YH

Cai, Q

机构：

[1] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.91.266104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a new kind of polyethlene oxide (PEO)-Li based composite polymer electrolyte containing active nanocomposite particles with ethylene carbonate (EC)/propylene carbonate (PC) plasticizers embedded in mesoporous SiO2 (EC/PC-SiO2). A very large enhancement of the ionic conductivity was observed for the PEO-Li/(EC/PC-SiO2) electrolytes. This could be attributed mainly to conducting EC/PC nanochannels in the active nanocomposite particles. This unique mechanism is absent in currently known nanocomposite polymer electrolytes with inert oxide nanoparticles. Both high ionic conductivity and excellent stability of such new nanocomposite polymer electrolytes potentially makes it one of the most promising electrolyte materials.

引用

页数：4

共 22 条

[1] ENTROPY EFFECTS IN IONIC-CONDUCTIVITY [J].

ALMOND, DP ;

WEST, AR .

SOLID STATE IONICS, 1986, 18-9 :1105-1109

[2] Nanoscopic-confinement effects on local dynamics [J].

Anastasiadis, SH ;

Karatasos, K ;

Vlachos, G ;

Manias, E ;

Giannelis, EP .

PHYSICAL REVIEW LETTERS, 2000, 84 (05) :915-918

[3] THE HISTORY OF POLYMER ELECTROLYTES [J].

ARMAND, M .

SOLID STATE IONICS, 1994, 69 (3-4) :309-319

[4] Dilute solution routes to various controllable morphologies of MCM-41 silica with a basic medium [J].

Cai, Q ;

Luo, ZS ;

Pang, WQ ;

Fan, YW ;

Chen, XH ;

Cui, FZ .

CHEMISTRY OF MATERIALS, 2001, 13 (02) :258-263

[5] Nanocomposite polymer electrolytes for lithium batteries [J].

Croce, F ;

Appetecchi, GB ;

Persi, L ;

Scrosati, B .

NATURE, 1998, 394 (6692) :456-458

[6] Physical and chemical properties of nanocomposite polymer electrolytes [J].

Croce, F ;

Curini, R ;

Martinelli, A ;

Persi, L ;

Ronci, F ;

Scrosati, B ;

Caminiti, R .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (48) :10632-10638

[7] Thermal, electrical and mechanical properties of (PEO)16LiClO4 electrolytes with modified montmorillonites [J].

Fan, LZ ;

Nan, CW ;

Li, M .

CHEMICAL PHYSICS LETTERS, 2003, 369 (5-6) :698-702

[8] Effect of modified montmorillonites on the ionic conductivity of (PEO)16LiClO4 electrolytes [J].

Fan, LZ ;

Nan, CW ;

Dang, ZM .

ELECTROCHIMICA ACTA, 2002, 47 (21) :3541-3544

[9] Ionic conductivity in crystalline polymer electrolytes [J].

Gadjourova, Z ;

Andreev, YG ;

Tunstall, DP ;

Bruce, PG .

NATURE, 2001, 412 (6846) :520-523

[10]

Gray F. M., 1997, RSC MAT MONOGRAPHS

← 1 2 3 →