Celltocell variations and thermal gradients in lithiumion battery packs can significantly impact the accessible energy and rate of degradation thereby reducing the range and lifetime of poorly designed electric vehicles. Here we discuss some of these challenges, ways of quantifying their effects and the outlook for better battery pack designs.

00:00 Introduction
00:22 The need to decarbonise transport
01:26 The problem with scaling up
03:16 The battery model
05:42 Interconnect resistances result in uneven currents
07:17 Celltocell variability
07:41 The impact of cell placement on pack performance
09:33 The impact of thermal gradients
11:55 Summary

This video covers content presented in our paper "The effect of celltocell variations and thermal gradients on the performance and degradation of lithiumion battery packs" published in Applied Energy in 2019. Please check it out in the link below:
https://www.sciencedirect.com/science...

The slides for this video can be downloaded from the below link:
https://www.researchgate.net/publicat...

Interested in learning more?
Here are some books which I recommend to learn more about the history of batteries and how they've impacted the world
Volt Rush: The Winners and Losers in the Race to Go Green Henry Sanderson https://amzn.to/3WoCDEc (Amazon)
The Powerhouse: America, China, and the Great Battery War Steve LeVine https://amzn.to/3UPHf5e (Amazon)
Climate Capitalism: Winning the Global Race to Zero Emissions Akshat Rathi https://amzn.to/3we1jVo (Amazon)

#LithiumIonBatteries #BatteryPacks #ElectricVehicles #Degradation

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