Battery performance of PMMA-grafted PE separators prepared by pre-irradiation grafting technique

被引：53

作者：

Gwon, Sung-Jin ^{[1
,2
]}

Choi, Jae-Hak ^{[1
]}

Sohn, Joon-Yong ^{[1
]}

Lim, Youn-Mook ^{[1
]}

Nho, Young-Chang ^{[1
]}

Ihm, Young-Eon ^{[2
]}

机构：

[1] Korea Atom Energy Res Inst, Adv Radiat Technol Inst, Radiat Res Div Ind & Environm, Jeongeup Si 580185, Jeollabuk Do, South Korea

[2] Chungnam Natl Univ, Dept Mat Engn, Taejon 305764, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2009年 / 15卷 / 05期

关键词：

Separators; Radiation-induced graft polymerization; Charge/discharge cycling test; Thermal stability; Electrochemical stability; LITHIUM-ION BATTERIES; POLYMER ELECTROLYTE MEMBRANE; ELECTROCHEMICAL PROPERTIES; SECONDARY BATTERIES; THERMAL-STABILITY; BEAM IRRADIATION; RADIATION; BEHAVIOR;

D O I：

10.1016/j.jiec.2009.09.057

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Poly(methyl methacrylate)-grafted polyethylene (PE-g-PMMA) separators were prepared by pre-irradiation grafting technique of methyl methacrylate onto a commercial polyethylene separator. The prepared separators were characterized by using charge/discharge (C/D) cycling test, AC impedance, and thermal stability analyses. Thermal shrinkage (TS) of the PE-g-PMMA separators decreased with an increasing degree of grafting up to 70% above which it was saturated. The PE-g-PMMA separators showed a better oxidation stability on the anode up to 5 V and a better cycle life performance than the original PE separator. These characteristics make the prepared separators suitable for applications in high voltage secondary lithium batteries. (C) 2009 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：748 / 751

页数：4

共 22 条

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