| 摘要 |
An embodiment of the present invention provides a lithium-air battery. The lithium-air battery comprises: a positive electrode layer, a negative electrode layer, and an electrolyte layer. The positive electrode layer, the negative electrode layer, and the electrolyte layer are accommodated in an accommodating space formed by a housing. A through hole exchanging air outside the housing is disposed on one side near the positive electrode layer and away from the negative electrode layer. The positive electrode layer comprises a positive current collector and a reaction layer which is coated or thermally pressed on the positive current collector and has an oxygen reduction capability. The negative electrode layer has a lithium storage layer capable of inserting or escaping a lithium ion capability or a lithium source negative electrode active material layer coated or thermally pressed on a surface of the lithium storage laye. The electrolyte layer is clamped between the reaction layer of the positive electrode layer and the negative electrode layer. By using the lithium-air battery, the problem of poor cycle performance and safety performance caused by arborescent crystal and "dead lithium" in the lithium-air battery in the prior art; in addition, the manufacturing process is simple, the cost is low, and therefore, the lithium-air battery of the present invention is suitable for mass industrial production and has very high application value. An embodiment of the present invention also provides a method for preparing the lithium-air battery. |
