New electrical automobile battery chemistries and configurations are continuously underneath growth, however a brand new examine highlights the significance of testing them underneath practical circumstances.
Revealed within the journal Nature Power by researchers from Stanford College and the Power Division’s SLAC Nationwide Accelerator Laboratory, and first noticed by Electrek, the examine follows up on analysis into battery longevity—together with a 2022 examine from the identical analysis group detailing a strategy to “revitalize” lithium-ion batteries by adjusting the charging protocol, probably extending their helpful life by practically 30%.
Audi battery meeting at Brussels, Belgium, manufacturing unit
The assessments used for research like this typically contain many cycles of charging and discharging at a relentless fee. The idea is that the variety of cycles a battery experiences is the principle consider degradation, that means this seems to be essentially the most easy strategy to push battery cells to their limits.
However for this examine researchers in contrast 4 discharge profiles, starting from fixed discharge to profiles meant to simulate real-world driving circumstances, reminiscent of brief bursts of acceleration. These have been examined on 92 commercially-available lithium-ion batteries over two years.
Panasonic cylindrical EV battery cells
Researchers discovered that the profiles with extra variation within the discharge fee helped batteries last more—probably by as much as 38%. That perception might assist with the design of extra correct assessments for brand spanking new batteries, and it might assist information guidelines for battery degradation ought to they be enacted.
The findings present that for EV house owners, diversified driving patterns would possibly assist maximize battery longevity, and that is additionally encouraging. However there are different easy greatest practices to remember for limiting battery degradation, together with parking vehicles within the shade or in a storage when temperatures climb.
