A Static Tin-Manganese Battery with 30000-Cycle Lifespan Based on Stabilized Mn3+/Mn2+ Redox Chemistry

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

8 Scopus Citations
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Author(s)

  • Xuejin Li
  • Yongchao Tang
  • Cuiping Han
  • Haodong Fan
  • Haiming Lv
  • Tonghui Cai
  • Yongpeng Cui
  • Wei Xing
  • Zifeng Yan
  • Hongfei Li

Detail(s)

Original languageEnglish
Pages (from-to)5083-5094
Journal / PublicationACS Nano
Volume17
Issue number5
Online published28 Feb 2023
Publication statusPublished - 14 Mar 2023

Abstract

High-potential Mn3+/Mn2+ redox couple (>1.3 V vs SHE) in a static battery system is rarely reported due to the shuttle and disproportionation of Mn3+ in aqueous solutions. Herein, based on reversible stripping/plating of the Sn anode and stabilized Mn2+/Mn3+ redox couple in the cathode, an aqueous Sn-Mn full battery is established in acidic electrolytes. Sn anode exhibits high deposition efficiency, low polarization, and excellent stability in acidic electrolytes. With the help of H+ and a complexing agent, a reversible conversion between Mn2+ and Mn3+ ions takes place on the graphite surface. Pyrophosphate ligand is initially employed to form a protective layer through a complexation process with Sn4+ on the electrode surface, effectively preventing Mn3+ from disproportionation and hindering the uncontrollable diffusion of Mn3+ to electrolytes. Benefiting from the rational design, the full battery delivers satisfied electrochemical performance including a large capacity (0.45 mAh cm-2 at 5 mA cm-2), high discharge plateau voltage (>1.6 V), excellent rate capability (58% retention from 5 to 30 mA cm-2), and superior cycling stability (no decay after 30 000 cycles). The battery design strategy realizes a robustly stable Mn3+/Mn2+ redox reaction, which broadens research into ultrafast acidic battery systems.

Research Area(s)

  • aqueous battery, acid electrolyte, Mn3+/Mn2+ redox couple, tin anode, energy storage, static battery, protective layer, PERFORMANCE, CATALYSTS, GRAPHENE

Citation Format(s)

A Static Tin-Manganese Battery with 30000-Cycle Lifespan Based on Stabilized Mn3+/Mn2+ Redox Chemistry. / Li, Xuejin; Tang, Yongchao; Han, Cuiping et al.
In: ACS Nano, Vol. 17, No. 5, 14.03.2023, p. 5083-5094.

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