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

充足和可持续的电能供应是现代社会不可缺少的。因此，开发高倍率、安全、低成本的水基电池功能材料成为当务之急。在过去的一年里，我们成功地破译了两种具有代表性的化合物：MoO_3和VOPO_4的质子嵌入机理，并探索了它们作为水基质子电池电极材料的性能。MoO_3具有超高倍率能力，可以在8秒内实现快速充放电，这可以用无水格洛特斯机制来解释。由于其多阴离子结构，VOPO4显示出较高的电势。除了作为电池材料的应用外，我们还验证了MoO_3作为氧化还原介体在去偶分水体系中的作用。

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.