Aqueous Lithium-Air Rechargeable Battery system

锂/空气二次电池具有较高的比能量密度，是电动汽车动力源的最佳选择。我们把重点放在锂/空气水溶液体系上，因为它具有很好的性能。制备了一种水稳定、无水渗透的高锂离子导电性固体电解液，并将其与金属锂和固体聚合物电解质结合形成杂化水稳定锂负极，使其具有高功率密度和良好的循环性能。同时，我们尝试寻找氧分子和OH-离子的还原催化剂。部分钙钛矿型氧化物对碳载体材料的氧化有抑制作用。

Lithium/air secondary batteries are the best candidate for a power source for electric vehicles, because of their high specific energy density. We focused on an aqueous lithium/air system because of the promising performance. A water stable and water penetration free high lithium ion conducting solid electrolyte sheet was prepared and combined with lithium metal and solid polymer electrolyte to form the hybrid water stable lithium anode, which enabled the high power density and good cycle performance. In parallel, we tried to find the catalysts for reduction of both oxygen molecule and OH- ion. Some perovskite oxides were effective to suppress the oxidation of carbon supporting materials.