Cesium Lead Bromide Perovskite-Based Lithium-Oxygen Batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

View graph of relations

Author(s)

  • Kun Yin
  • Jinhui Zhou
  • Shaojun Guo

Detail(s)

Original languageEnglish
Pages (from-to)4861–4867
Journal / PublicationNano Letters
Volume21
Issue number11
Online published28 May 2021
Publication statusPublished - 9 Jun 2021

Abstract

The main challenge for lithium-oxygen (Li-O2) batteries is their sluggish oxygen evolution reaction (OER) kinetics and high charge overpotentials caused by the poorly conductive discharge products of lithium peroxide (Li2O2). In this contribution, the cesium lead bromide perovskite (CsPbBr3) nanocrystals were first employed as a high-performance cathode for Li-O2 batteries. The battery with a CsPbBr3 cathode can exhibit the lowest charge overpotential of 0.5 V and the best cycling performance of 400 cycles among all the reported perovskite-based Li-O2 cells, which represents a new benchmark. Most importantly, the density functional theory (DFT) calculations further prove that the rate limitation step during OER processes is the decomposition of LiO2 to form O2 and Li+, and the weak adsorption strength between CsPbBr3 surfaces and LiO2 results in a low charge overpotential for the CsPbBr3-based Li-O2 battery. This work first demonstrates the good potential of CsPbBr3 for application in metal-air batteries.

Research Area(s)

  • Adsorption energy, Charge overpotential, CsPbBr3nanocrystals, Lithium-oxygen battery

Citation Format(s)

Cesium Lead Bromide Perovskite-Based Lithium-Oxygen Batteries. / Zhou, Yin; Gu, Qianfeng; Li, Yiju; Tao, Lu; Tan, Hao; Yin, Kun; Zhou, Jinhui; Guo, Shaojun.

In: Nano Letters, Vol. 21, No. 11, 09.06.2021, p. 4861–4867.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review