An organic-halide perovskite-based photo-assisted Li-ion battery for photoelectrochemical storage

Abstract

Merging solar energy conversion and storage into a single device would improve the utilization of solar energy.

Molecular Photoelectrochemical Energy Storage Materials for Coupled Solar Batteries

“…The photoassisted charge/discharge process is conducted with the assistance of an external bias to provide additional energy . This is typically manifested as an increase in the discharge voltage to enhance output power and a voltage decrease in the charging process to conserve input power, thus favoring low energy consumption and high output. − In 2018, we developed a photoassisted Li-ion battery with NT-COF as the photoelectrochemical energy storage cathode and Li metal as the anode (Figure a). The correlation between the reversible redox of NT-COF and solar energy conversion was verified by analyzing the cyclic voltammetry (CV) spectra under light and dark.…”

A perspective on photoelectrochemical storage materials for coupled solar batteries

“…3c). 58 A bandgap of 2.34 eV endowed DAPbI material with the ability of solar energy harvesting. After illumination of sunlight, electron-hole pairs were generated within lithiated DAAQ.…”

Light‐Assisted Energy Storage Devices: Principles, Performance, and Perspectives

“…In addition, the discharge/charge voltage and output/input power were raised/lowered by 470/410 mV and 81.4%/13.2%, respectively (Figure 6g). In addition, there have been some efforts on photoassisted lithium batteries in recent years, [82][83][84][85] such as the use of photo-assisted lithium deposition/stripping process to achieve uniform Li deposition, to reduce the formation of lithium dendrites and eventually to obtain a more stable lithium-ion battery, [82] and to apply a self-powered lithium-ion battery based on LiV 2 O 5 as the photocathode without the addition of photosensitive materials. [83] Although the photo-assisted Li-ion batteries have performed the desired photoelectronic conversion and storage capability, their low conversion and efficiencies still severely limit their practical applications.…”