공업화학전망 (Prospectives of Industrial Chemistry)

한국공업화학회 (The Korean Society of Industrial and Engineering Chemistry)
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이차 전지용 후막 전극 연구 동향

Recent Research Trend in Ultra-thick Electrodes for Rechargeable Batteries

  • 이정태 (경희대학교 식물환경신소재공학과)
  • Lee, Jung Tae (Department of Plant and Environmental Natural Resources, Kyung Hee University)
  • 발행 : 2020.02.28

⟨ 이전 논문 다음 논문 ⟩

초록

배터리 구동 기기의 사용이 계속적으로 증가하고 첨단화, 다기능화, 융합화가 되면서 고에너지 밀도 배터리에 대한 수요는 지속적으로 증가하고 있다. 배터리의 에너지 밀도를 높이는 여러 가지 전략 중에서 활물질 코팅 두께를 늘려 에너지를 저장하지 않는 집전체와 분리막의 사용량을 줄이고 배터리의 중량, 부피, 그리고 가격을 동시에 줄이는 전략은 간단하면서도 매우 효율적인 방법이다. 하지만 기존 전극 제작 방법으로 후막 전극을 제작할 경우 전극 제작 자체가 쉽지 않고 만들었다고 해도 전자와 이온의 두께 방향 이동 지연으로 인해 전극의 전기화학 특성이 좋지 않다. 이러한 문제점을 극복하고자 이차 전지용 첨단 후막 전극에 대한 연구가 활발하게 진행되고 있다. 본 기고문에서는 이차 전지용 후막 전극의 구조, 제조방법, 전기화학 특성에 관한 연구동향을 소개하고자 한다.

키워드

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