Synergistic dual-phase air electrode enables high and durable performance of reversible proton ceramic electrochemical cells.

ABSTRACT: Reversible proton ceramic electrochemical cells are promising solid-state ion devices for efficient power generation and energy storage, but necessitate effective air electrodes to accelerate the commercial application. Here, we construct a triple-conducting hybrid electrode through a stoichiometry tuning strategy, composed of a cubic phase Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ and a hexagonal phase Ba₄Sr₄(Co_0.8Fe_0.2)₄O_16-δ. Unlike the common method of creating self-assembled hybrids by breaking through material tolerance limits, the strategy of adjusting the stoichiometric ratio of the A-site/B-site not only achieves strong interactions between hybrid phases, but also can efficientl

SUBMITTER: Liu Z 

PROVIDER: S-EPMC10784466 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature