A Novel Electrochemical Hydrogen Storage-Based Proton Battery for Renewable Energy Storage

Amandeep Singh Oberoi, Parag Nijhawan and Parminder Singh
Additional contact information
Amandeep Singh Oberoi: Mechanical Engineering Department, Thapar Institute of Engineering and Technology, Patiala-147004, India
Parag Nijhawan: Electrical and Instrumentation Engineering Department, Thapar Institute of Engineering and Technology, Patiala-147004, India
Parminder Singh: Chemical Engineering Department, Thapar Institute of Engineering and Technology, Patiala-147004, India

Energies, 2018, vol. 12, issue 1, 1-15

Abstract: The inherently variable nature of renewable energy sources makes them storage-dependent when providing a reliable and continuous energy supply. One feasible energy-storage option that could meet this challenge is storing surplus renewable energy in the form of hydrogen. In this context, storage of hydrogen electrochemically in porous carbon-based electrodes is investigated. Measurements of hydrogen storage capacity, proton conductivity, and capacitance due to electrical double layer of several porous activated carbon electrodes are reported. The hydrogen storage capacity of the tested electrodes is found in the range of 0.61?1.05 wt.%, which compares favorably with commercially available metal hydride-based hydrogen storage, lithium polymer batteries, and lithium ion batteries in terms of gravimetric energy density. The highest obtained proton conductivity was 0.0965 S/cm, which is near to that of the commercial polymer-based proton conductor, nafion 117, under fully hydrated conditions. The obtained capacitance due to double-layers of the tested electrodes was in the range of 28.3–189.4 F/g. The relationship between specific surface area, micropore volume and hydrogen storage capacity of the carbon electrodes is discussed. The contribution of capacitance to the equivalent hydrogen storage capacity of carbon electrodes is reported. The implications of the obtained experimental results are discussed.

Keywords: porous activated carbon; electrochemical hydrogen storage; polymer electrolyte membrane fuel cell; renewable energy; double-layer capacitance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/1/82/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/1/82/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2018:i:1:p:82-:d:193648

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().