| 학회 | 한국공업화학회 |
| 학술대회 | 2010년 봄 (05/13 ~ 05/14, BEXCO(부산)) |
| 권호 | 14권 1호 |
| 발표분야 | Fuel Cell |
| 제목 | Membranes for Polymer Electrolyte Fuel Cells |
| 초록 | In the 1960s, polystyrene based membranes were used for the Gemini space project. The life time of these membranes was very limited. Later, Dupont’s Nafion was used successfully in Fuel Cells, and was considered to be the best material available for FC membranes, the only drawback being the high price, which can be reduced dramatically if Nafion is produced in large scale. However, soon other limitations of Nafion were recognized. In order to improve the performance of fuel cell membranes, the thickness of Nafion membranes was reduced, and chemical and mechanical degradation became a major problem. Especially, Nafion does not reach the drive cycle life time of 5000 hours demanded by the DOE for Fuel Cell Electric Vehicles (FCEV), which is one of the reasons membrane research is still needed these days. Another import goal dictated by the car industry is a working temperature of about 120°C, which is difficult to achieve with current standard sulfonic acid based membranes without the need for excessive humidification. A general introduction to trends in fuel cell membrane research will be given, highlighting some of the materials discussed as Nafion alternatives. |
| 저자 | Dirk Henkensmeier |
| 소속 | KIST |
| 키워드 | Polyelectrolytes; Membrane; PEMFC |
