CNC 첨가에 따른 납축전지의 전기화학적 특성연구 (A Study on the Effects of CNC Addition on Electrochemical Properties of Lead-acid Battery)

서지정보

· 발행기관 : 한국전기전자재료학회
· 수록지 정보 : 전기전자재료학회논문지 / 21권 / 3호 / 279 ~ 285페이지
· 저자명 : 김지훈, 문준호, 문성용, 구본근, 김기원

초록

CNC (Carbon Nano Colloid) was used as an additive to the positive electrode to improve the discharge performance of sealed lead-acid batteries. The cathode active material (PbO₂) has a relatively low utility of less than 60 % compared with other kind of batteries, such as Ni-MH and Lithium ion. In this study, to overcome the above-mentioned problem we investigated the effects of CNC addition on the enhancement of electrical connection with not-utilized PbO₂ and resultantly electrical conductivity of electrode. We examined low rate discharge capacities, high rate discharge capacities and internal resistances of the batteries containing various amounts of CNC. From these results, we found out that the addition of CNC into the positive electrode made a significant improvement in high rate discharge capacity. We also suggested the optimum content of CNC material in positive electrode.

영어초록

CNC (Carbon Nano Colloid) was used as an additive to the positive electrode to improve the discharge performance of sealed lead-acid batteries. The cathode active material (PbO₂) has a relatively low utility of less than 60 % compared with other kind of batteries, such as Ni-MH and Lithium ion. In this study, to overcome the above-mentioned problem we investigated the effects of CNC addition on the enhancement of electrical connection with not-utilized PbO₂ and resultantly electrical conductivity of electrode. We examined low rate discharge capacities, high rate discharge capacities and internal resistances of the batteries containing various amounts of CNC. From these results, we found out that the addition of CNC into the positive electrode made a significant improvement in high rate discharge capacity. We also suggested the optimum content of CNC material in positive electrode.

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