TY - JOUR
T1 - Air Cathode Design for Light-Assisted Charging of Metal-Air Batteries
T2 - Recent Advances and Perspectives
AU - Wu, Fayun
AU - Wang, Cuie
AU - Liao, Kaiming
AU - Shao, Zongping
N1 - Publisher Copyright:
© 2023 American Chemical Society.
PY - 2023/7/6
Y1 - 2023/7/6
N2 - Metal-air batteries are a type of electrochemical cell that generates electrical energy by combining metal and oxygen from the air. They are a promising technology for energy storage and portable devices because of their high energy density, low cost, and environmental friendliness. However, the discharge products of these batteries are notoriously difficult to decompose, resulting in a high overpotential. Recent works have shown that semiconductors can capture solar energy and store it in batteries. When exposed to light, photocatalysts generate carriers (strong redox pairs), thereby increasing the electron migration rate and significantly reducing the overpotential of the metal-air battery reaction. Nevertheless, single photocatalysts often exhibit poor cycle performance due to serious carrier recombination. This review paper begins by briefly describing the fundamentals of photoelectrochemistry and then focuses on commonly used photocathode design principles and various reported photocatalysts. It also discusses the main challenges and issues caused by light, such as photocorrosion and electrolyte decomposition. Finally, the critical issues associated with photo electrodes, electrolytes, and electrode/electrolyte interfaces are emphasized, and perspectives on the development of high-performance light-assisted metal-air batteries are presented.
AB - Metal-air batteries are a type of electrochemical cell that generates electrical energy by combining metal and oxygen from the air. They are a promising technology for energy storage and portable devices because of their high energy density, low cost, and environmental friendliness. However, the discharge products of these batteries are notoriously difficult to decompose, resulting in a high overpotential. Recent works have shown that semiconductors can capture solar energy and store it in batteries. When exposed to light, photocatalysts generate carriers (strong redox pairs), thereby increasing the electron migration rate and significantly reducing the overpotential of the metal-air battery reaction. Nevertheless, single photocatalysts often exhibit poor cycle performance due to serious carrier recombination. This review paper begins by briefly describing the fundamentals of photoelectrochemistry and then focuses on commonly used photocathode design principles and various reported photocatalysts. It also discusses the main challenges and issues caused by light, such as photocorrosion and electrolyte decomposition. Finally, the critical issues associated with photo electrodes, electrolytes, and electrode/electrolyte interfaces are emphasized, and perspectives on the development of high-performance light-assisted metal-air batteries are presented.
UR - http://www.scopus.com/inward/record.url?scp=85164403321&partnerID=8YFLogxK
U2 - 10.1021/acs.energyfuels.3c01107
DO - 10.1021/acs.energyfuels.3c01107
M3 - 文献综述
AN - SCOPUS:85164403321
SN - 0887-0624
VL - 37
SP - 8902
EP - 8918
JO - Energy and Fuels
JF - Energy and Fuels
IS - 13
ER -