Abstract:
본 발명은 리튬공기배터리의 공기 공급 장치에 관한 것으로서, 리튬공기배터리에 주입되는 공기의 먼지 또는 오염원을 제거하는 필터부, 리튬공기배터리에 주입되는 공기의 습도를 조절하는 컬럼부, 리튬공기배터리에 주입되는 공기의 압력 또는 유량을 조절하는 블러워부를 포함하여 구성되는 것을 특징으로 한다. 본 발명에 의하면, 리튬공기배터리에 주입되는 공기 내의 먼지 또는 오염물질 및 수분을 효과적으로 제거할 수 있을 뿐만 아니라, 주입되는 공기의 양을 일정하게 조절하여 리튬공기배터리의 성능을 극대화할 수 있는 효과가 있다.
Abstract:
The present invention relates to; a composite oxide catalyst for a cathode of a lithium air battery, which serves the function of a buffer for oxygen in the cathode in order for stable maintenance of the battery′s charged level; a cathode of a lithium air battery including the same; and a lithium air battery. The composite oxide catalyst for a cathode for a lithium air battery comprises a supporter and a catalyst material dipped in the supporter. The supporter is one selected or a mixture consiting of at least two selected from Ce-Al oxide, Ce-Zr oxide and Al-Zr oxide. The catalyst materials is at least one or a mixture consisting of at least two selected from silver (Ag) oxide, copper (Cu) oxide, platinum (Pt) oxide, palladium (Pd) oxide, rhodium (Rh) oxide, manganese (Mn) oxide, iron (Fe) oxide and perovoskite. The composite oxide catalyst for a cathode of a lithium air battery is characterized by comprising at least one among the perovoskite and ceria. [Reference numerals] (AA) Supporter; (BB) Catalyst; (CC) Composite oxide catalyst using the supporter; (DD) Composite oxide catalyst by mechanical mixture
Abstract:
PURPOSE: A lithium-air battery apparatus is provided to maintain a stable battery discharging state by minimizing changes in oxygen supply amount by releasing absorbed oxygen, thereby maintaining a stable battery discharging state. CONSTITUTION: A lithium-air battery apparatus comprises: a negative electrode using a lithium metal; and a positive electrode using a carbon material and a catalyst. The catalyst consists of a metal oxide and an oxygen absorbing material. The oxygen absorbing material absorbs oxygen when oxygen is abundant, and releases oxygen when oxygen is lacking to maintain a stable battery discharging state. The oxygen absorbing material is ceria(CeO2). [Reference numerals] (AA) In case of oxygen enrichment; (BB) In case of oxygen deficiency