Ultralong Cycle Life and High Rate of Zn‖I2 Battery Enabled by MBene-Hosted I2 Cathode

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

4 Scopus Citations
View graph of relations

Author(s)

  • Zishuai Zhang
  • Wei Ling
  • Jiaqi Wang
  • Xiaoyang Chen
  • Miao Yu
  • Yan Huang

Detail(s)

Original languageEnglish
Article number2310294
Journal / PublicationAdvanced Functional Materials
Volume34
Issue number1
Online published22 Sept 2023
Publication statusPublished - 2 Jan 2024

Abstract

High rate tolerance and long cycle life represent the critical demand of the market for energy storage devices, known as one of major challenges for the development of rechargeable aqueous batteries. Herein, a layered Mo4/3B2T2 (where “T” denotes -O, -OH, and -F terminations) MBene (a transition metal boride) with in-plane ordered metal vacancies is first proposed as an iodine species host of an aqueous Zn‖I2 battery, delivering a discharge capacity of 106.8 mAh g−1 at 25 A g−1 after 230 000 cycles and 80 mAh g−1 at 100 A g−1, far exceeding those of all Zn‖I2 batteries ever reported. The high performance is attributed to the strong affinity with iodine species and accelerated the redox kinetics by the conductive MBene with metal vacancies, as evidenced by the one-step conversion of I/I0 without the generation of I3‒ ions. This work unlocks a new route for the construction of other halide or sulfur electrode batteries with superior durability and kinetics. © 2023 Wiley-VCH GmbH.

Research Area(s)

  • aqueous Zn, extraordinary durability, high rates tolerance, I2 batteries, MBene host

Citation Format(s)

Ultralong Cycle Life and High Rate of Zn‖I2 Battery Enabled by MBene-Hosted I2 Cathode. / Zhang, Zishuai; Ling, Wei; Ma, Ninggui et al.
In: Advanced Functional Materials, Vol. 34, No. 1, 2310294, 02.01.2024.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review