전기화학 열전지의 연구 개발 동향
Most of low-grad heat (< $200^{\circ}C$) generated from industrial process and human body, is abandoned as waste heat. To harvest the waste heat, the thermoelectrics (TE) technology has been widely investigated so far. However, TE suffers from poor performance and high material cost. As an altern...
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Published in | 전기화학회지 Vol. 22; no. 3; pp. 79 - 86 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Korean |
Published |
한국전기화학회
01.08.2019
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Subjects | |
Online Access | Get full text |
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Abstract | Most of low-grad heat (< $200^{\circ}C$) generated from industrial process and human body, is abandoned as waste heat. To harvest the waste heat, the thermoelectrics (TE) technology has been widely investigated so far. However, TE suffers from poor performance and high material cost. As an alternative to the TE device, the thermoelectrical cell (TEC) is gaining growing attention these days. The TEC features several advantages such as high Seebeck coefficient, low cost and design flexibility compared to TE, but its commercial viability was limited by its low heat-to-electricity conversion efficiency. However, recent reports have demonstrated that the performance of TEC can be markedly improved by employing novel electrode/electrolyte materials and by optimizing cell design. This article summarizes the recent progress of TECs in terms of the redox couples, electrolyte solvents and additives, electrode materials and cell design. 중저온 (<$200^{\circ}C$) 폐열은 중요한 청정 에너지원이다. 폐열 활용 방안 중 가장 대표적인 것은 열전기술이나, 최근 전기화학 열전지가 열전소자의 대안으로 주목받고 있다. 전기화학 열전지의 기전력은 산화/환원 전극 전위의 온도 의존성에 의해 발생하며, 출력 특성은 전기화학 반응에 수반되는 동역학과 물질 이동 과전압에 의해 결정된다. 전기화학 열전지는 열전소자보다 비용 및 설계 유연성이 장점이지만, 열전소자에 비해 낮은 열-전기 변환 효율로 인해 응용 범위가 제한되어왔다. 하지만 최근 새로운 전해질과 전극을 적용하여 전기화학 열전지의 성능을 크게 향상할 수 있음이 보고되고 있다. 이 총설은 전기화학 열전지용 산화/환원쌍, 수계/비수계 전해질과 첨가제, 전극 물질 및 전지 설계 측면에서 최근 연구 동향을 소개한다. |
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AbstractList | 중저온 (<200oC) 폐열은 중요한 청정 에너지원이다. 폐열 활용 방안 중 가장 대표적인 것은 열전기술이나, 최근 전기화학 열전지가 열전소자의 대안으로 주목받고 있다. 전기화학 열전지의 기전력은 산화/환원 전극 전위의 온도 의존성에 의해 발생하며, 출력 특성은 전기화학 반응에 수반되는 동역학과 물질 이동 과전압에 의해 결정된다. 전기화학 열전지는 열전소자보다 비용 및 설계 유연성이 장점이지만, 열전소자에 비해 낮은 열-전기 변환 효율로 인해 응용 범위가 제한되어왔다. 하지만 최근 새로운 전해질과 전극을 적용하여 전기화학 열전지의 성능을 크게 향상할 수있음이 보고되고 있다. 이 총설은 전기화학 열전지용 산화/환원쌍, 수계/비수계 전해질과 첨가제, 전극 물질 및 전지 설계 측면에서 최근 연구 동향을 소개한다. Most of low-grad heat (< 200oC) generated from industrial process and human body, is abandoned as waste heat. To harvest the waste heat, the thermoelectrics (TE) technology has been widely investigated so far. However, TE suffers from poor performance and high material cost. As an alternative to the TE device, the thermoelectrical cell (TEC) is gaining growing attention these days. The TEC features several advantages such as high Seebeck coefficient, low cost and design flexibility compared to TE, but its commercial viability was limited by its low heatto- electricity conversion efficiency. However, recent reports have demonstrated that the performance of TEC can be markedly improved by employing novel electrode/electrolyte materials and by optimizing cell design. This article summarizes the recent progress of TECs in terms of the redox couples, electrolyte solvents and additives, electrode materials and cell design. KCI Citation Count: 0 Most of low-grad heat (< $200^{\circ}C$) generated from industrial process and human body, is abandoned as waste heat. To harvest the waste heat, the thermoelectrics (TE) technology has been widely investigated so far. However, TE suffers from poor performance and high material cost. As an alternative to the TE device, the thermoelectrical cell (TEC) is gaining growing attention these days. The TEC features several advantages such as high Seebeck coefficient, low cost and design flexibility compared to TE, but its commercial viability was limited by its low heat-to-electricity conversion efficiency. However, recent reports have demonstrated that the performance of TEC can be markedly improved by employing novel electrode/electrolyte materials and by optimizing cell design. This article summarizes the recent progress of TECs in terms of the redox couples, electrolyte solvents and additives, electrode materials and cell design. 중저온 (<$200^{\circ}C$) 폐열은 중요한 청정 에너지원이다. 폐열 활용 방안 중 가장 대표적인 것은 열전기술이나, 최근 전기화학 열전지가 열전소자의 대안으로 주목받고 있다. 전기화학 열전지의 기전력은 산화/환원 전극 전위의 온도 의존성에 의해 발생하며, 출력 특성은 전기화학 반응에 수반되는 동역학과 물질 이동 과전압에 의해 결정된다. 전기화학 열전지는 열전소자보다 비용 및 설계 유연성이 장점이지만, 열전소자에 비해 낮은 열-전기 변환 효율로 인해 응용 범위가 제한되어왔다. 하지만 최근 새로운 전해질과 전극을 적용하여 전기화학 열전지의 성능을 크게 향상할 수 있음이 보고되고 있다. 이 총설은 전기화학 열전지용 산화/환원쌍, 수계/비수계 전해질과 첨가제, 전극 물질 및 전지 설계 측면에서 최근 연구 동향을 소개한다. |
Author | 이호춘 Kim, Kyunggu Lee, Hochun 김경구 Kang, Junsik 강준식 |
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Snippet | Most of low-grad heat (< $200^{\circ}C$) generated from industrial process and human body, is abandoned as waste heat. To harvest the waste heat, the... 중저온 (<200oC) 폐열은 중요한 청정 에너지원이다. 폐열 활용 방안 중 가장 대표적인 것은 열전기술이나, 최근 전기화학 열전지가 열전소자의 대안으로 주목받고 있다. 전기화학 열전지의 기전력은 산화/환원 전극 전위의 온도 의존성에 의해 발생하며, 출력 특성은 전기화학 반응에... |
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Title | 전기화학 열전지의 연구 개발 동향 |
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