The Library
High performance H2−Mn regenerative fuel cells through an improved positive electrode morphology
Tools
Rubio-Garcia, Javier, Kucernak, Anthony, Chakrabarti, Barun Kumar, Zhao, Dong, Li, Danlei, Tang, Yuchen, Ouyang, Mengzheng, Low, Chee Tong John and Brandon, Nigel (2023) High performance H2−Mn regenerative fuel cells through an improved positive electrode morphology. Batteries, 9 (2). 108. doi:10.3390/batteries9020108 ISSN 2313-0105.
|
PDF
batteries-09-00108-v2.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1690Kb) | Preview |
Official URL: http://doi.org/10.3390/batteries9020108
Abstract
The effective scaling-up of redox flow batteries (RFBs) can be facilitated upon lowering the capital costs. The application of ubiquitous manganese along with hydrogen (known as H2−Mn regenerative fuel cells (RFC)) is seen as an effective solution for this purpose. Here, we aim to evaluate different positive electrodes so as to improve the key performance metrics of the H2/Mn RFC, namely electrolyte utilization, energy efficiency, and peak power densities. Commercially available carbon paper and graphite felt are used to show that the latter provides better key performance indicators (KPIs), which is consistent with the results reported for standard all-vanadium RFBs in the literature. Even better KPIs are obtained when an in-house carbon catalyst layer (CCL) is employed in combination with graphite felt electrodes (e.g., more than 80% energy efficiency, >0.5 W cm−2 peak power density and electrolyte utilization of 20 Ah L−1 for felt and carbon metal fabric (CMF), prepared by means of electrospinning and carbonization, in comparison with about 75% energy efficiency 0.45 W cm−2 peak power density and 11 Ah L−1 electrolyte utilization for felt on its own). It is envisaged that if the electrochemical performance of CCLs can be optimized then it could open up new opportunities for the commercial exploitation of H2−Mn systems.
Item Type: | Journal Article | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | |||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Flow batteries, Fuel cells, Electrodes, Electrospinning, Manganese | |||||||||||||||
Journal or Publication Title: | Batteries | |||||||||||||||
Publisher: | M D P I AG | |||||||||||||||
ISSN: | 2313-0105 | |||||||||||||||
Official Date: | 3 February 2023 | |||||||||||||||
Dates: |
|
|||||||||||||||
Volume: | 9 | |||||||||||||||
Number: | 2 | |||||||||||||||
Article Number: | 108 | |||||||||||||||
DOI: | 10.3390/batteries9020108 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Date of first compliant deposit: | 26 April 2023 | |||||||||||||||
Date of first compliant Open Access: | 26 April 2023 | |||||||||||||||
RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year