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Title: High purity Mn 5O 8 nanoparticles with a high overpotential to gas evolution reactions for high voltage aqueous sodium-ion electrochemical storage

Abstract

Here, developing electrodes with high specific energy by using inexpensive manganese oxides is of great importance for aqueous electrochemical energy storage (EES) using non-Li charge carriers such as Na-or K-ions. However, the energy density of aqueous EES devices is generally limited by their narrow thermodynamic potential window (~1.23 V). In this paper, the synthesis of high purity layered Mn 5O 8 nanoparticles through solid state thermal treatment of Mn3O4 spinel nanoparticles, resulting in a chemical formula of [Mn 2 2+ ] [Mn 3 4+ O 8 2–], evidenced by Rietveld refinement of synchrotron- based X-ray diffraction, has been reported. The electro-kinetic analyses obtained from cyclic voltammetry measurements in half-cells have demonstrated that Mn5O8 electrode has a large overpotential (~ 0.6 V) towards gas evolution reactions, resulting in a stable potential window of 2.5 V in an aqueous electrolyte in half-cell measurements. Symmetric full-cells fabricated using Mn5O8 electrodes can be operated within a stable 3.0 V potential window for 5000 galvanostatic cycles, exhibiting a stable electrode capacity of about 103 mAh/g at a C-rate of 95 with nearly 100% coulombic efficiency and 96% energy efficiency.

Authors:
 [1];  [1];  [2];  [1]
  1. Univ. of New Hampshire, Durham, NH (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1471540
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Frontiers in Energy
Additional Journal Information:
Journal Volume: 11; Journal Issue: 3; Journal ID: ISSN 2095-1701
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; aqueous Na-ion storage; high voltage; manganese oxides Mn 5 O8

Citation Formats

Shan, Xiaoqiang, Guo, Fenghua, Xu, Wenqian, and Teng, Xiaowei. High purity Mn5O8 nanoparticles with a high overpotential to gas evolution reactions for high voltage aqueous sodium-ion electrochemical storage. United States: N. p., 2017. Web. doi:10.1007/s11708-017-0485-3.
Shan, Xiaoqiang, Guo, Fenghua, Xu, Wenqian, & Teng, Xiaowei. High purity Mn5O8 nanoparticles with a high overpotential to gas evolution reactions for high voltage aqueous sodium-ion electrochemical storage. United States. doi:10.1007/s11708-017-0485-3.
Shan, Xiaoqiang, Guo, Fenghua, Xu, Wenqian, and Teng, Xiaowei. Thu . "High purity Mn5O8 nanoparticles with a high overpotential to gas evolution reactions for high voltage aqueous sodium-ion electrochemical storage". United States. doi:10.1007/s11708-017-0485-3. https://www.osti.gov/servlets/purl/1471540.
@article{osti_1471540,
title = {High purity Mn5O8 nanoparticles with a high overpotential to gas evolution reactions for high voltage aqueous sodium-ion electrochemical storage},
author = {Shan, Xiaoqiang and Guo, Fenghua and Xu, Wenqian and Teng, Xiaowei},
abstractNote = {Here, developing electrodes with high specific energy by using inexpensive manganese oxides is of great importance for aqueous electrochemical energy storage (EES) using non-Li charge carriers such as Na-or K-ions. However, the energy density of aqueous EES devices is generally limited by their narrow thermodynamic potential window (~1.23 V). In this paper, the synthesis of high purity layered Mn5O8 nanoparticles through solid state thermal treatment of Mn3O4 spinel nanoparticles, resulting in a chemical formula of [Mn 2 2+ ] [Mn 3 4+ O82–], evidenced by Rietveld refinement of synchrotron- based X-ray diffraction, has been reported. The electro-kinetic analyses obtained from cyclic voltammetry measurements in half-cells have demonstrated that Mn5O8 electrode has a large overpotential (~ 0.6 V) towards gas evolution reactions, resulting in a stable potential window of 2.5 V in an aqueous electrolyte in half-cell measurements. Symmetric full-cells fabricated using Mn5O8 electrodes can be operated within a stable 3.0 V potential window for 5000 galvanostatic cycles, exhibiting a stable electrode capacity of about 103 mAh/g at a C-rate of 95 with nearly 100% coulombic efficiency and 96% energy efficiency.},
doi = {10.1007/s11708-017-0485-3},
journal = {Frontiers in Energy},
issn = {2095-1701},
number = 3,
volume = 11,
place = {United States},
year = {2017},
month = {7}
}

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Works referenced in this record:

Na4Mn9O18 as a positive electrode material for an aqueous electrolyte sodium-ion energy storage device
journal, March 2010


Electrode Materials for Rechargeable Sodium-Ion Batteries: Potential Alternatives to Current Lithium-Ion Batteries
journal, May 2012

  • Kim, Sung-Wook; Seo, Dong-Hwa; Ma, Xiaohua
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