Lithium-ion batteries are an essential component in electric vehicles, however their safety remains a key challenge. This video explores the science behind what happens when batteries are abused and when then fail.

00:00 Introduction
00:08 What happens when batteries go wrong?
00:48 Types of battery abuse
02:12 Mechanical abuse
03:34 Nail penetration test
04:25 What happens during over-charge
05:44 What happens during over-discharge
07:17 The various stages of thermal abuse
08:48 Energy release during thermal runaway
12:09 Summary

Check out my other video on how batteries work:
Battery basics - An introduction to the science of lithium-ion batteries
   • Battery basics - An introduction to t...  

#battery #fire #thermalrunaway #overcharging

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Key resources
- Battery fire video - Genius-PyroBubbles -    • Lithium ion cells fail uncontrolled a...  
- Battery x-ray nail penetration video - Donal Finegan -    • High-speed X-ray imaging: Nail penetr...  
- Thermal runaway mechanism of lithium ion battery for electric vehicles: A review. X. Feng et al. Energy Storage Materials 10 (2018) 246–267 - https://www.sciencedirect.com/science...
- An electrochemical-thermal coupled overcharge-to-thermal-runaway model for lithium-ion battery. Ren et al. Journal of Power Sources. 2017, 364, 328-340 - https://www.sciencedirect.com/science...
- Progress of enhancing the safety of lithium ion battery from the electrolyte aspect. Wang et al. Nano Energy 2018; 55 :93–114 - https://www.sciencedirect.com/science...