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Overcoming diffusion limitations in supercapacitors using layered electrodes

Abstract:

The impact of multi-layered electrode microstructures on the dynamic capacitance of electrochemical double layer supercapacitors is investigated. An electrochemical model that describes ion diffusion and double layer dynamics across the layered electrodes is first developed and then matched to experimental data. With TiO2 particulate and carbon nanotube layered electrodes, two knee frequencies were observed in the real and imaginary capacitance plots in both experiment and model...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author
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Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Sub department:
Vice-chancellor & Registrar
Oxford college:
St Catherine's College
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Oxford college:
St Hugh's College
Role:
Author
ORCID:
0000-0002-9525-7305
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Name:
Engineering and Physical Sciences Research Council
Grant:
EP/P005411/1
Publisher:
Elsevier
Journal:
Journal of Power Sources More from this journal
Volume:
433
Article number:
126579
Publication date:
2019-06-04
Acceptance date:
2019-04-28
DOI:
ISSN:
0378-7753
Keywords:
Pubs id:
pubs:1026581
UUID:
uuid:a82d3b0c-ecbb-4ffa-a744-74a7349156d5
Local pid:
pubs:1026581
Source identifiers:
1026581
Deposit date:
2019-07-09

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