| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
고분자-포스터 |
| 제목 |
Preparation and characterization of SPEEK(Sulfonated Poly Ether Ether Ketone)/ Nafion for Vanadium Redox Flow battery. |
| 초록 |
While ensuring chemical stability, the vanadium redox flow battery (VBR) used in the system has to keep the cost of the membrane low. Our problem is that the existing membrane ( Nafion 117) is very expensive. In order to solve this problem, it is necessary to develop an ion selective membrane that will achieve high stability, while keeping the cost down. We compensate for disadvantage of the nafion that we choose polymer of sulfonated Polyetheretherketone(PEEK) which has excellent chemical stability. Ion conductive membrane conduct to hydrogen ion as shown in Figure 10. But Nafion has a problem that is transferred to vanadium. The rightside above Figure 10 displys structure and ion transport channel of Nafion. This is a picture showing passage of water. The bottom of Figure 10 show ion transport channel of SPEEK. The SPEEK membrane is expected to decrease in cross-over of vanadium ion due to small channel of SPEEK. But SPEEK has low durability and chemical stability. Then we blend SPEEK and Nafion for improving of disadvantage of SPEEK.
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| 저자 |
안동희, 홍창국
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| 소속 |
전남대 |
| 키워드 |
RFB; ion exchange membrane; PEEK; Nafion
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| E-Mail |
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