| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
에너지저장변환-포스터 |
| 제목 |
Acrylate-based Gel Polymer Electrolyte Exhibiting Better Rate Performance than Liquid Electrolyte |
| 초록 |
Gel polymer electrolytes (GPEs) exhibit enhanced safety and dimensional stability over liquid electrolytes (LEs), which is the critical advantage for the application of the Li-ion batteries (LIBs) to the electric vehicles and the renewable energy storage. The LIBs employing GPEs, however, are known to suffer from inferior power density due to the poor ionic conductivity of GPEs compared with LEs. In this study, it is demonstrated that the acrylate-based GPEs, prepared by the in-situ thermal cross linking polymerization, can show higher power density than LEs. It is found that LiNi1/3Mn1/3Co1/3O2/graphite cell employing the GPE exhibits 60 % higher discharge capacity at 2 C rate than the cell with LEs. To reveal the reason for the improved power performance of the GPE, the charge transport behavior of the electrode/electrolyte interface is examined by using electrochemical impedance spectroscopy (EIS) at various temperatures. |
| 저자 |
김동휘1, 유성훈2, 전종호2, 양두경2, 이호춘1
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| 소속 |
1대구경북과학기술원, 2LG화학 기술(연) |
| 키워드 |
battery; electrolyte; gel polymer electrolyte; solvation energy
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| E-Mail |
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