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To Be or Not To Be Pseudocapacitive?
Open accessAbstract
There are an increasing number of studies regarding active electrode materials that undergo faradaic reactions but are used for electrochemical capacitor applications. Unfortunately, some of these materials are described as "pseudocapacitive" materials despite the fact that their electrochemical signature (e.g., cyclic voltammogram and charge/discharge curve) is analogous to that of a "battery" material, as commonly observed for Ni(OH) 2 and cobalt oxides in KOH electrolyte. Conversely, true pseudocapacitive electrode materials such as MnO 2 display electrochemical behavior typical of that observed for a capacitive carbon electrode. The difference between these two classes of materials will be explained, and we demonstrate why it is inappropriate to describe nickel oxide or hydroxide and cobalt oxide/hydroxide as pseudocapacitive electrode materials.
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Cites
Where do batteries end and supercapacitors begin?
Simon, P., Gogotsi, Y., & Dunn, B. (2014) · Science · doi:10.1126/science.1249625 · Cited by 5,634
Cited by
Efficient storage mechanisms for building better supercapacitors
Salanne, M., Rotenberg, B., Naoi, K., Kaneko, K., Taberna, P.-L., Grey, C. P., Dunn, B., & Simon, P. (2016) · Nature Energy · doi:10.1038/nenergy.2016.70 · Cited by 2,181
Achieving high energy density and high power density with pseudocapacitive materials
Choi, C., Ashby, D. S., Butts, D. M., DeBlock, R. H., Wei, Q., Lau, J., & Dunn, B. (2019) · Nature Reviews Materials · doi:10.1038/s41578-019-0142-z · Cited by 1,964
A Comprehensive Review on Supercapacitor Applications and Developments
Şahin, M., Blaabjerg, F., & Sangwongwanich, A. (2022) · Energies · doi:10.3390/en15030674 · Cited by 679
Wang, T., Zhang, S., Yan, X., Lyu, M., Wang, L., Bell, J., & Wang, H. (2017) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.7b02987 · Cited by 459
Lu, X., Wang, C., Favier, F., & Pinna, N. (2017) · Advanced Energy Materials · doi:10.1002/aenm.201601301 · Cited by 429
Metadata
- Authors
- Brousse, T., Bélanger, D., & Long, J. W.
- Venue
- Journal of The Electrochemical Society
- Publisher
- The Electrochemical Society
- Published
- 2015
- Volume
- 162
- Issue
- 5
- Pages
- A5185-A5189
- ISSN
- 0013-4651 (ISSN-L)
- 1945-7111
- OpenAlex
- W2087606978
- Cited by
- 2,500
- References
- 1
- FWCI
- 79.30
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Brousse, T., Bélanger, D., & Long, J. W. (2015). To Be or Not To Be Pseudocapacitive? Journal of The Electrochemical Society. https://doi.org/10.1149/2.0201505jes
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
