CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12090 > Article
Paper
30 May 2022 Non-exponential discharge dynamics in electrochemical capacitors
Anis Allagui, Hachemi Benaoum, Ahmed Elwakil, Mohammad AlShabi
Author Affiliations +
Proceedings Volume 12090, Energy Harvesting and Storage: Materials, Devices, and Applications XII; 1209006 (2022) https://doi.org/10.1117/12.2632777
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States
Abstract
We study the non-exponential, power-law charge/voltage-time behavior of a supercapacitor when it is discharged into a constant resistive load. The standard evolution equation dn(t)=dt = -λn(t) where λ is an inverse time constant and n(t) can represent here charge or voltage is modifed instead to be dn(t)=dt = -λ[n(t)]q relating the rate of change of n(t) to a power law function of n(t). This leads to the q-exponential function which shows much better fitting capability to the experimental results obtained on a commercial capacitive device when compared with the traditional exponential decay.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Anis Allagui, Hachemi Benaoum, Ahmed Elwakil, and Mohammad AlShabi "Non-exponential discharge dynamics in electrochemical capacitors", Proc. SPIE 12090, Energy Harvesting and Storage: Materials, Devices, and Applications XII, 1209006 (30 May 2022); https://doi.org/10.1117/12.2632777
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 5 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Data modeling
Capacitors
Capacitance
Differential equations
Renewable energy
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top