高出力プロトン電池の開発に向けたプロトン挿入メカニズムの究明

充足和可持续的电力供应是现代社会不可或缺的。因此，开发用于高倍率、安全、低成本的水溶液电池系统的功能材料成为当务之急。在过去的一年里，我们成功地解码了两种代表性化合物：MoO3和VOPO4的质子嵌入机制，并探索了它们作为水溶液质子电池电极材料的性能。MoO3具有良好的倍率性能，可在8 s内实现快速充放电，其充放电机理可用无水Grotthuss机理解释。VOPO4由于其聚阴离子结构而显示出相对高的电位。除了作为电池材料的应用，我们还验证了MoO3作为氧化还原介体的解耦水裂解系统的功能。

Sufficient and sustainable electric energy supply is indispensable for modern society. Therefore, developing functional materials for high-rate, safe and low-cost aqueous battery systems becomes an urgent task. In last year, we have successfully decoded the proton intercalation mechanisms in two representative compounds: MoO3 and VOPO4, and explored their performances as electrode materials for aqueous proton batteries. MoO3 exhibited an ultrahigh rate capability that can realize a fast charge/discharge within 8 seconds, which can be explained by anhydrous Grotthuss mechanism. VOPO4 showed a relatively high potential due to its polyanion structure. Except for the application as battery material, we also verified the function of MoO3 as a redox mediator for decoupled water splitting system.