| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Synthesis and Electrochemical Properties of Comb-shape Polymers with Carbonate Backbone for Lithium Polymer Rechargeable Battery |
| 초록 |
Solid polymer electrolytes (SPEs) with high ionic conductivity are good candidate for next-generation Li ion battery systems with high stability. Poly (ethylene oxide) (PEO) is one of the typical solid polymer electrolytes materials. However SPEs based on linear type PEO show low ionic conductivity at room temperature, compared with commercial liquid electrolytes and gel polymer electrolytes systems. To overcome the limitation of linear type PEO, many scientists have studied SPEs based on PEO with various structures In this work, we have prepared comb-shape polymers containing carbonate-backbone with oligoethylene glycol groups as a branch unit. These comb-shape polymers have exhibited high ionic conductivity(10-5 S/cm) compared with conventional SPEs based on linear type PEO. The SPEs have also shown improved electrochemical stability window higher than 4.5 V. |
| 저자 |
이은주, 강영구, 이치화, 김동욱
|
| 소속 |
한국화학(연) |
| 키워드 |
Solid polymer electrolytes; Li ion battery; PEO
|
| E-Mail |
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