This perspective presents a new battery concept with a “mediator-ion” solid-state electrolyte for the development of next-generation battery technologies to meet the growing needs of large-scale electrical energy storage. The uniqueness of this mediator-ion strategy is that the redox reactions at the anode and the cathode are sustained by a shuttling of a mediator ion between the anolyte and the catholyte through the solid-state electrolyte. The active anode and cathode materials can be in the form of solid, liquid, or gas. Use of a solid-electrolyte separator eliminates the common problem of chemical crossover between the anode and cathode, overcomes the dendrite problem when employing metal anodes, and offers the possibility of employing different liquid electrolytes at the anode and cathode. Based on these unique features, the mediator-ion battery concept offers a versatile approach for the development of a broad range of new battery systems.

该观点提出了一种带有“中介离子”固态电解质的新电池概念，用于开发下一代电池技术，以满足日益增长的大规模电能存储需求。这种介体离子策略的独特之处在于，阳极和阴极之间的氧化还原反应通过阳极电解质和阴极电解质之间的介体离子通过固态电解质的穿梭而得以维持。活性阳极和阴极材料可以是固体，液体或气体的形式。固体电解质隔板的使用消除了阳极和阴极之间化学交叉的常见问题，克服了在采用金属阳极时的枝晶问题，并提供了在阳极和阴极采用不同的液体电解质的可能性。基于这些独特功能，