Redox flow batteries for energy storage
Redox flow batteries for energy storage
The concept of redox flow batteries (RFBs) is explained and their importance in grid level electrical energy storage is highlighted. The benefits of their modular configuration are linked to a flexible service operation, improved safety, recyclability, moderate costs and reduced environmental impact. Types of RFBs are classified and examples of their electrochemistry are provided, for both commercial devices and promising systems under development. Critical design features of electrodes, unit cells, cell stacks and balance of plant are summarised, together with the role of the power conditioner and the battery management system. Benefits and implications of electrolyte flow are considered and operational parameters affecting cell efficiency, performance and scale-up are given. These include cell resistance, reaction environment, mass transfer, shunt currents and pressure drop as well as cross-over through the membranes. Fundamental electrochemical and techno-economical figures of merit are surveyed. Failure mechanisms and durability are discussed. The scope of validated mathematical modelling and simulation in the design process of efficient RFBs is reviewed. The application of RFBs is illustrated at different scales and competition with other devices is briefly explored. Trends in RFB development and application opportunities are followed by further R & D needs.
BIPOLAR ELECTRODE, ELECTROCHEMICAL ENGINEERING, ELECTROLYTE FLOW, Energy Storage, ENGINEERING DESIGN, MASS TRANSFER, MEMBRANE, ORGANIC REDOX COUPLE, POROUS ELECTRODE, POWER GRID INTEGRATION, REACTION ENGINEERING, RECHARGEABLE BATTERY, REDOX COUPLES, RENEWABLE ENERGY, STACK
Arenas, LF
3fcf929f-9d74-4e8a-99b0-09105d2ec269
Walsh, F.C.
48ab1e6d-5b4b-428a-994d-7f1b9863f9a5
Arenas, LF
3fcf929f-9d74-4e8a-99b0-09105d2ec269
Walsh, F.C.
48ab1e6d-5b4b-428a-994d-7f1b9863f9a5
Arenas, LF and Walsh, F.C.
(2021)
Redox flow batteries for energy storage.
In,
Cabeza, L.F.
(ed.)
Encyclopedia of Energy Storage.
(Encyclopedia of Energy Storage)
Elsevier.
(In Press)
Record type:
Book Section
Abstract
The concept of redox flow batteries (RFBs) is explained and their importance in grid level electrical energy storage is highlighted. The benefits of their modular configuration are linked to a flexible service operation, improved safety, recyclability, moderate costs and reduced environmental impact. Types of RFBs are classified and examples of their electrochemistry are provided, for both commercial devices and promising systems under development. Critical design features of electrodes, unit cells, cell stacks and balance of plant are summarised, together with the role of the power conditioner and the battery management system. Benefits and implications of electrolyte flow are considered and operational parameters affecting cell efficiency, performance and scale-up are given. These include cell resistance, reaction environment, mass transfer, shunt currents and pressure drop as well as cross-over through the membranes. Fundamental electrochemical and techno-economical figures of merit are surveyed. Failure mechanisms and durability are discussed. The scope of validated mathematical modelling and simulation in the design process of efficient RFBs is reviewed. The application of RFBs is illustrated at different scales and competition with other devices is briefly explored. Trends in RFB development and application opportunities are followed by further R & D needs.
Text
Encyclop. Walsh-Arenas 2020 RFB Accept 11-01-21 PURE
Restricted to Repository staff only
More information
Accepted/In Press date: 11 January 2021
Keywords:
BIPOLAR ELECTRODE, ELECTROCHEMICAL ENGINEERING, ELECTROLYTE FLOW, Energy Storage, ENGINEERING DESIGN, MASS TRANSFER, MEMBRANE, ORGANIC REDOX COUPLE, POROUS ELECTRODE, POWER GRID INTEGRATION, REACTION ENGINEERING, RECHARGEABLE BATTERY, REDOX COUPLES, RENEWABLE ENERGY, STACK
Identifiers
Local EPrints ID: 448435
URI: http://eprints.soton.ac.uk/id/eprint/448435
PURE UUID: 65f003eb-28e8-4850-b47d-39df9c478a43
Catalogue record
Date deposited: 22 Apr 2021 16:40
Last modified: 16 Mar 2024 12:04
Export record
Contributors
Author:
LF Arenas
Author:
F.C. Walsh
Editor:
L.F. Cabeza
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics