유비쿼터스 시대의 모바일 전력원으로서 가장 유용한 리튬이차전지의 충전방식은 1991년 리튬이온전지의 상용화 이후 정전류-정전압 방식의 충전법이 고수되어 왔다. 그러나 압전, 열전 등 신재생에너지에 의한 에너지 하베스팅으로 생성되는 전력의 성질이 전압과 전류의 범위가 매우 다양하므로 이를 효율적으로 저장할 수 있는 에너지 매니지먼트 체계가 필요하다. 이에 대한 기반연구로서 리튬이차전지의 고효율 충전을 위한 다양한 방식이 고려되어 왔으며, 본 동향분석서에서는 이러한 충전방식에 따라 리튬이차전지 내부 소재가 받는 영향과 여러 충전방식의 장단점을 분석하고, 최적 충전방식의 기준을 정리한다.
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