| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.2966 |
| 발표분야 |
에너지 |
| 제목 |
Electrochemical properties of LiFePO4/C synthesized by mechanical activation using polymer electrolyte |
| 초록 |
Carbon-coated lithium iron phosphate (LiFePO4/C) cathode material suitable for lithium batteries was synthesized by mechano-chemical activation method from a mixture of lithium carbonate, ferrous oxalate, ammonium dihydrogenphosphate and acetylene carbon black. The performance of LiFePO4/C as cathode active material in lithium battery was tested with an electrospun polymer-based electrolyte. Liquid electrolyte of 1M LiPF6 (lithium hexafluorophosphate) in EC/DMC (ethylene carbonate / dimethyl carbonate) (1:1 vol) was incorporated in electrospun poly(vinylidene fluoride-co-hexafluoropropylene) P(VdF-HFP) microfibrous membrane to prepare the polymer electrolyte (PE).Good cycling performance even under the high current density of 2 C could be obtained. Impedance spectroscopy was applied to investigate the material behavior during 0.1 C-rate charge-discharge cycling. When the fresh cell and the cell after different cycles were compared, impedance resistance was found to decrease with cycling. |
| 저자 |
최재원, 안주현, 백동호, 김재광
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| 소속 |
경상대 |
| 키워드 |
LiFePO4; polymer electrolyte; mechanical activation
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| E-Mail |
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| 원문파일 |
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