Photo-Assisted Zn-Iodine Battery via Bifunctional Cathode with Iodine Host and Solar Response Boost

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0191217" target="_blank" >RIV/00216305:26620/26:0191217 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27240/25:10255642

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/adfm.202414022" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/adfm.202414022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/adfm.202414022" target="_blank" >10.1002/adfm.202414022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photo-Assisted Zn-Iodine Battery via Bifunctional Cathode with Iodine Host and Solar Response Boost

Popis výsledku v původním jazyce

The aqueous photo-assisted battery is considered an efficient means of converting and storing solar energy in one device. However, identifying a suitable photocathode with excellent iodine capture capabilities for photo-assisted Zn-iodine batteries still remains challenging. In this work, bifunctional BiOI is prepared as sole cathode material for a photo-assisted Zn-iodine battery while simultaneously realizing an iodine host and solar responsiveness. The as-presented BiOI with abundant vacancies offers highly reversible photo-assisted iodine redox reactions. Meanwhile, the dual reaction routes involving vacancy iodine storage and reversible two-steps iodine redox are confirmed by in/ex situ characterization techniques during the energy storage process. Consequently, the assembled battery exhibits areal capacity of 0.24 mAh cm-2 at 1 mA cm-2 with coulombic efficiency exceeding 96.5%. More impressively, benefiting from the wide visible light absorption of the BiOI cathode, the battery demonstrates a much enhanced specific areal capacity of 0.4 mAh cm-2 at 1 mA cm-2 under sun illumination, representing a remarkable increment of 60% compared to that in the dark environment. This work expands the utility of cathode materials for a photo-assisted Zn-iodine battery. A bifunctional cathode based on BiOI materials is developed for photo-assisted Zn-iodine batteries, serving as both an iodine host and a solar-responsive material. This design enables dual reaction routes involving vacancy-based iodine storage and reversible two steps iodine redox. By combining these functionalities, this approach expands the utility of cathode materials in photo-assisted devices. image

Název v anglickém jazyce

Photo-Assisted Zn-Iodine Battery via Bifunctional Cathode with Iodine Host and Solar Response Boost

Popis výsledku anglicky

The aqueous photo-assisted battery is considered an efficient means of converting and storing solar energy in one device. However, identifying a suitable photocathode with excellent iodine capture capabilities for photo-assisted Zn-iodine batteries still remains challenging. In this work, bifunctional BiOI is prepared as sole cathode material for a photo-assisted Zn-iodine battery while simultaneously realizing an iodine host and solar responsiveness. The as-presented BiOI with abundant vacancies offers highly reversible photo-assisted iodine redox reactions. Meanwhile, the dual reaction routes involving vacancy iodine storage and reversible two-steps iodine redox are confirmed by in/ex situ characterization techniques during the energy storage process. Consequently, the assembled battery exhibits areal capacity of 0.24 mAh cm-2 at 1 mA cm-2 with coulombic efficiency exceeding 96.5%. More impressively, benefiting from the wide visible light absorption of the BiOI cathode, the battery demonstrates a much enhanced specific areal capacity of 0.4 mAh cm-2 at 1 mA cm-2 under sun illumination, representing a remarkable increment of 60% compared to that in the dark environment. This work expands the utility of cathode materials for a photo-assisted Zn-iodine battery. A bifunctional cathode based on BiOI materials is developed for photo-assisted Zn-iodine batteries, serving as both an iodine host and a solar-responsive material. This design enables dual reaction routes involving vacancy-based iodine storage and reversible two steps iodine redox. By combining these functionalities, this approach expands the utility of cathode materials in photo-assisted devices. image

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

—

Návaznosti

O - Projekt operacniho programu

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advanced functional materials

ISSN

1616-301X

e-ISSN

1616-3028

Svazek periodika

35

Číslo periodika v rámci svazku

28

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

001327064400001

EID výsledku v databázi Scopus

2-s2.0-85205592677