Abstract:
PURPOSE: A production method of zirconium-doped cerium oxide is provided to produce the cerium oxide capable of being used as an activation catalyst in a metal-air secondary battery through a simple process using a combustion method. CONSTITUTION: Zirconium-doped cerium oxide is doped is denoted by chemical formula 1: Ce1-xZrxO2 (0.1
Abstract:
The present invention relates to a metal-air secondary battery, more specifically to: aluminum-doped cerium oxide with a new composition having improved catalytic activity to be used as an activation catalyst for a metal-air secondary battery; a production method for the same; an air electrode for the metal-air secondary battery including the oxide as a catalyst; and the metal-air secondary battery including the air electrode.
Abstract:
본 발명은 금속공기 2차전지에 관한 것으로, 보다 구체적으로는 금속공기 2차전지에서 활성화 촉매로서 사용될 수 있도록 촉매활성을 보다 향상시킨 새로운 조성의 지르코늄이 도핑된 세륨산화물, 그 제조방법, 상기 산화물을 촉매로 포함하는 금속공기 2차전지용 공기전극 및 상기 공기전극을 포함하는 금속공기 2차전지에 관한 것이다.
Abstract:
PURPOSE: A manufacturing method of a nanostructured manganese dioxide is provided to manufacture the nanostructured manganese dioxide which has the high catalyst activity which is usable in the metal air secondary battery through the simple process by using the hydrothermal synthesis. CONSTITUTION: A nanostructured manganese dioxide has a nanorod shape in which the diameter is 15-110 nm and the length is 200-500 nm. The nanostructured manganese dioxide comprises as the tetragonal α-manganese dioxide crystal structure. The nanostructured manganese dioxide comprises K+. The manufacturing method of the nanostructured manganese dioxide comprises the following steps: a precursor which includes Mn2+ and an oxidizing agent which includes MnO4- are dissolved in water, and a reacting solution is prepared; the reacting solution is synthesized with the hydrothermal synthesis; and the precipitate which is generated from the hydrothermal synthesis reaction is collected. The precursor and the oxidizing agent have the mole ratio of 1:0.5-1:2. The precursor is the manganese sulfate (MnSO4), and the oxidizing agent is the potassium permanganate (KMnO4). The hydrothermal synthesis is performed in the autoclave at 140-160°C for 20-30 hours.
Abstract:
본 발명은 금속공기 2차전지에 관한 것으로, 보다 구체적으로는 금속공기 2차전지에서 활성화 촉매로서 사용될 수 있도록 촉매활성을 보다 향상시킨 새로운 조성의 알루미늄이 도핑된 세륨산화물, 그 제조방법, 상기 산화물을 촉매로 포함하는 금속공기 2차전지용 공기전극 및 상기 공기전극을 포함하는 금속공기 2차전지에 관한 것이다.