화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX)
권호 21권 2호, p.2239
발표분야 촉매 및 반응공학
제목 Highly Ordered Mesoporous Mixed Ni-Mn Oxide System  as Anode Material with an Excellent Electrochemical Performance for Lithium Ion Battery
초록 Manganese oxide is one of the most promising anode materials for lithium ion battery since it is naturally abundant, low cost, eco-friendly, and high theoretical capacity (1000 mAh/g). However, manganese oxide shows low initial Coulombic efficiency originated by poor decomposition of Li2O at the first charge. Nickel oxide introduction within transition metal oxide frameworks is the breakthrough to overcome the present problem due to the high catalytic activity of Li2O decomposition of nickel oxide. Also, the initial coulombic efficiency of transition metal oxide would be enhanced. In this study, nickel oxide was introduced into the mesoporous manganese oxide frameworks by the nano-casting method using mesoporous silica template (KIT-6). Therefore, ordered mesoporous mixed Mn-Ni system was successfully prepared and analyzed. Synthesized material has a specific BET surface area of 140 m2/g and pore diameters of 3 nm and 10-20 nm. As-prepared product was evaluated as the anode material for lithium ion battery. It exhibits high reversible capacity, and higher initial Coulombic efficiency.
저자 김지만, 박수빈, 이현아, 박귀옥, 김경호
소속 성균관대
키워드 mesoporous material; lithium ion battery; anode
E-Mail jimankim@skku.edu
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