In situ fabricated photo-electro-catalytic hybrid cathode for light-assisted lithium–CO₂ batteries

Abstract

<p>The severe polarization triggered by the limited electrochemical activity of carbon dioxide as well as the insulating and insoluble discharge product Li2CO3 significantly impedes the practical application of Li-CO2 batteries....</p>

Photo-enhanced rechargeable high-energy-density metal batteries for solar energy conversion and storage

“…14(b)). The authors further developed SiC/rGO and TiO2/carbon cloth electrodes as the photoelectro-catalytic hybrid cathodes, which also show good energy efficiencies of 84.4% at 20 mA•g −1 and 97.9% at 0.01 mA•cm −2 , respectively [87,88]. Based on the results of the reported photo-enhanced LCBs, high energy efficiencies are commonly obtained by testing under low current density (e.g., 0.01 mA•cm −2 ) and cut-off capacity (e.g., 0.01 mAh•cm −2 ), while the cycling stability still requires improvement.…”

Light‐Assisted Metal–Air Batteries: Progress, Challenges, and Perspectives

“…Many heterojunctions have been reported for effective carrier separation, such as TiO 2 À Fe 2 O 3 , [62] TiN/ TiO 2 , [63] Fe 2 O 3 /C 3 N 4 , [74] and SiC/graphene . [87] Schottky junction. The construction of the Schottky junction by combining a semiconductor with a metal, such as gold (Au), silver (Ag), and platinum (Pt) can enhance light absorption and the separation of photogenerated electronhole pairs.…”

Light‐Assisted Metal–Air Batteries: Progress, Challenges, and Perspectives

“…Many heterojunctions have been reported for effective carrier separation, such as TiO 2 −Fe 2 O 3 , [62] TiN/TiO 2 , [63] Fe 2 O 3 /C 3 N 4 , [74] and SiC/graphene . [87] …”