Size-Controlled Boron-Based Bifunctional Photocathodes for High-Efficiency Photo-Assisted Li-O₂ Batteries.

ABSTRACT: Photo-assisted Li-O₂ batteries are introduced as a promising strategy for reducing severe overpotential by directly employing photocathodes. Herein, a series of size-controlled single-element boron photocatalysts are prepared by the meticulous liquid phase thinning methods by combining probe and water bath sonication, and their bifunctional photocathodes in the photo-assisted Li-O₂ batteries are systematically investigated. The boron-based Li-O₂ batteries have shown incremental round-trip efficiencies as the sized reduction of boron under illumination. It is noteworthy that the completely amorphous boron nanosheets (B₄ ) photocathode not only delivers an optimizing round-trip efficiency of 190% on the basis of the ultra-high discharge voltage (3.

SUBMITTER: Li L 

PROVIDER: S-EPMC10401084 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature