An all-solid-state photo-rechargeable battery based on Cs₃Bi₂I₉

Abstract

Here, we present a new two-electrode photo-rechargeable FTO/TiO2/Cs3Bi2I9/Pt/FTO system. The key material is the photoactive lead-free perovskite Cs3Bi2I9 which performs photoelectric conversion and provides energy storage. This study is the...

Optimizing LiMn1.5M0.5O4 cathode materials for aqueous photo-rechargeable batteries

“…1,2 Furthermore, tailoring the electrode materials is important to improve the performance and the feasibility of practical applications. 13–16…”

“…1,2 Furthermore, tailoring the electrode materials is important to improve the performance and the feasibility of practical applications. [13][14][15][16] Our group recently reported the photocharging of LiMn 2 O 4 , in which we employed a half-cell with an electron acceptor to demonstrate Li extraction from the spinel structure induced by the holes generated in TiO 2 nanoparticles. 17 Spinel LiMn 2 O 4 is promising for a high-potential cathode; however, a problem is its low stability during charge/discharge.…”