An aqueous manganese-copper battery for large-scale energy storage applications

L. Wei, L. Zeng, M. C. Wu, H. R. Jiang, T. S. Zhao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)


This work reports on a new aqueous battery consisting of copper and manganese redox chemistries in an acid environment. The battery achieves a relatively low material cost due to ubiquitous availability and inexpensive price of copper and manganese salts. It exhibits an equilibrium potential of ∼1.1 V, and a coulombic efficiency of higher than 94% is obtained at an operating current of 20 mA cm−2. Cyclic tests confirm that the energy efficiency maintains ∼79% with no observable decay at 10 mA cm−2 over 100 cycles. Possessing other advantages such as ease of scalability and capable of using an inexpensive separator, the battery offers a promising solution for large-scale energy storage applications.

Original languageEnglish
Pages (from-to)203-210
Number of pages8
JournalJournal of Power Sources
Publication statusPublished - 31 May 2019
Externally publishedYes


  • Celgard separator
  • Energy storage
  • Low cost
  • Mn-Cu battery

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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