skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Chloride Insertion Enhances the Electrochemical Oxidation of Iron Hydroxide Double-Layer Hydroxide into Oxyhydroxide in Alkaline Iron Batteries

Journal Article · · Chemistry of Materials

Rechargeable alkaline iron batteries that constitute environmentally benign electrolytes and earth-abundant industrial materials are desirable green solutions for large-scale energy storage. As one of the most abundant metal elements in the earth’s crust, iron (Fe) can satisfy nearly all criteria for low-cost and safe battery electrodes. However, challenges in achieving reversible Fe redox impede their extensive implementation in modern energy supply systems. Here, this study revealed that Cl-anion insertion into Fe(OH)2 layered double hydroxide (LDH) formed a green rust intermediate phase with the formula [Fe22+Fe13+(HO)6]+[Cl], which assisted a high Fe(OH)2/FeOOH conversion reaction (64.7%) and improved cycling stability. This new iron redox chemistry was validated by operando X-ray diffraction, electrochemical testing, X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS) analysis, scanning transmission electron microscopy–energy-dispersive X-ray spectroscopy (STEM-EDS) mapping, and molecular dynamics (MD) simulations. Our study provides new insight into designing LDH materials for high-capacity alkaline iron batteries.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II); Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Science Foundation (NSF)
Grant/Contract Number:
SC0012704; 2236704
OSTI ID:
2281571
Report Number(s):
BNL-225185-2024-JAAM
Journal Information:
Chemistry of Materials, Vol. 35, Issue 16; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (38)

Molecular Models of Hydroxide, Oxyhydroxide, and Clay Phases and the Development of a General Force Field journal January 2004
Constant pressure molecular dynamics for molecular systems journal December 1983
Revitalizing Iron Redox by Anion-Insertion-Assisted Ferro- and Ferri-Hydroxides Conversion at Low Alkalinity journal June 2022
Developing Polymer Cathode Material for the Chloride Ion Battery journal January 2017
Speciation of cobalt-chloride-based ionic liquids and electrodeposition of Co wires journal January 2014
Canonical sampling through velocity rescaling journal January 2007
A High-Performance Rechargeable Iron Electrode for Large-Scale Battery-Based Energy Storage journal January 2012
Particle mesh Ewald: An N ⋅log( N ) method for Ewald sums in large systems journal June 1993
Metal–air batteries: from oxygen reduction electrochemistry to cathode catalysts journal January 2012
Über Graphitsalze journal June 1938
Synchrotron X-ray study of the electron density in α-Fe 2 O 3 journal August 1994
Molecular dynamics with coupling to an external bath journal October 1984
Discovery of Anion Insertion Electrochemistry in Layered Hydroxide Nanomaterials journal February 2019
Application of layered double hydroxides for removal of oxyanions: A review journal March 2008
Metal/air batteries: Their status and potential — a review journal January 1979
Exfoliation of layered double hydroxides for enhanced oxygen evolution catalysis journal July 2014
Electrochemically Active Polymers for Rechargeable Batteries journal February 1997
The nickel/iron battery journal June 1991
Toward Flexible Polymer and Paper-Based Energy Storage Devices journal February 2011
Chloride ion battery: A new member in the rechargeable battery family journal January 2014
Polymorphic transitions in single crystals: A new molecular dynamics method journal December 1981
Catalytic applications of layered double hydroxides: recent advances and perspectives journal January 2014
"Water-in-salt" electrolyte enables high-voltage aqueous lithium-ion chemistries journal November 2015
A Rechargeable Battery with an Iron Metal Anode journal March 2019
PACKMOL: A package for building initial configurations for molecular dynamics simulations journal October 2009
Electrical Energy Storage for the Grid: A Battery of Choices journal November 2011
Reversible electrochemical insertion of anions in poly-p-phenylene from aqueous electrolytes journal December 1983
Efficient and Durable Sodium, Chloride‐doped Iron Oxide‐Hydroxide Nanohybrid‐Promoted Capacitive Deionization of Saline Water via Synergetic Pseudocapacitive Process journal July 2022
Layered double hydroxide membrane with high hydroxide conductivity and ion selectivity for energy storage device journal June 2021
Determination of Alkali and Halide Monovalent Ion Parameters for Use in Explicitly Solvated Biomolecular Simulations journal July 2008
Effects of pore size on water dynamics in mesoporous silica journal April 2020
VOCl as a Cathode for Rechargeable Chloride Ion Batteries journal February 2016
CoFe–Cl Layered Double Hydroxide: A New Cathode Material for High‐Performance Chloride Ion Batteries journal July 2019
Rechargeable Lithium Batteries with Aqueous Electrolytes journal May 1994
The missing term in effective pair potentials journal November 1987
The Role of Sulfide Additives in Achieving Long Cycle Life Rechargeable Iron Electrodes in Alkaline Batteries journal January 2015
A Review of the Iron-Air Secondary Battery for Energy Storage journal September 2014
Polyaniline‐Intercalated FeOCl Cathode Material for Chloride‐Ion Batteries journal January 2019

Similar Records

Revitalizing Iron Redox by Anion-Insertion-Assisted Ferro- and Ferri-Hydroxides Conversion at Low Alkalinity
Journal Article · Tue Jun 14 00:00:00 EDT 2022 · Journal of the American Chemical Society · OSTI ID:2281571

Aluminium substitution in iron(II-III)-layered double hydroxides: Formation and cationic order
Journal Article · Mon Sep 15 00:00:00 EDT 2008 · Journal of Solid State Chemistry · OSTI ID:2281571

Synthesis and characterization of sulfate and dodecylbenzenesulfonate intercalated zinc-iron layered double hydroxides by one-step coprecipitation route
Journal Article · Tue May 15 00:00:00 EDT 2007 · Journal of Solid State Chemistry · OSTI ID:2281571