Skip to content
University of Toledo Engineering Faculty Page: Dr. Sandrine Mubenga, PE
twitter
DrMubenga.com
  • Home
  • Academics
  • Research
  • Publications
  • Honors
  • Outreach / Service
  • Media
  • News Blog

Publication of Paper on Bilevel Equalizers for Second Life EV Batteries

Home > Battery Management > Publication of Paper on Bilevel Equalizers for Second Life EV Batteries

Publication of Paper on Bilevel Equalizers for Second Life EV Batteries

Posted on February 7, 2021February 20, 2021 by Editor
0

Bilevel vs. Passive Equalizers for Second Life EV Batteries

Dr. Mubenga publishes paper titled, “Bilevel vs. Passive Equalizers for Second Life EV Batteries” in the Journal Electricity (ISSN 2673-4826).

Authors:  Ngalula Sandrine Mubenga, Boluwatito Salami, and Thomas Stuart

Publication:  Electricity 2021, 2(1), 63-76; https://doi.org/10.3390/electricity2010004 (registering DOI)

Date of Publication:  February 7, 2021

Abstract

Once lithium-ion batteries degrade to below about 80% of their original capacity, they are no longer considered satisfactory for electric vehicles (EVs), but they are still adequate for second-life energy storage applications. However, once this level is reached, capacity fade increases at a much faster rate, and the spread between the cell capacities becomes much wider. If the passive equalizer (PEQ) from the EV is still used, battery capacity remains equal to that of the worst cell in the stack, just like it was in the EV. Unfortunately, the worst cell eventually becomes much weaker than the cell average, and the other cells are not fully utilized. If operated while the battery is in use, an active equalizer (AEQ) can increase the battery capacity to a much higher value close to the cell average, but AEQs are much more expensive and are not considered cost effective. However, it can be shown that the bilevel equalizer (BEQ), a PEQ/AEQ hybrid, also can provide a capacity very close to the cell average and at a much lower cost than an AEQ.

 

 

Keywords: equalizers; battery management system; lithium batteries; second life; EV; energy storage
Read Paper on Publisher’s site in New Browser:  https://www.mdpi.com/2673-4826/2/1/4/htm
Source:
Mubenga NS, Salami B, Stuart T. Bilevel vs. Passive Equalizers for Second Life EV Batteries. Electricity. 2021; 2(1):63-76. Retrieved online February 7, 2021 from https://www.mdpi.com/2673-4826/2/1/4/htm

Latest News

  • Dr. Mubenga Appointed to University of Toledo Presidential Search Committee
  • Dr. Mubenga Granted Tenure, Named Associate Professor
  • Dr. Mubenga Invited to Speak at UN
  • Channel 13 Interview
  • Dr. Mubenga gives presentation and panel discussion at Owens Community College: Technology Takes The Wheel
Website Copyright 2018-2020, All Rights Reserved, Design by BIG Marketing Solutions LLC | WordPress Theme: Enlighten by Accesspress Themes