Incorporating a polymer switching material into lithium-ion batteries could prevent their overheating due to a process known as “thermal runaway,” according to Stanford researchers. Lithium-ion batteries consist of an anode, a cathode, a separator and a flammable electrolyte. The separator melts when a large amount of heat is generated by overcharging or shorting, ultimately resulting in a thermal runaway. Pressures and temperatures can rise inside cells too fast to control using existing safety mechanisms.
I also think the lithium overheating problem is due to bad China made adapters, and this marketing issue about reducing charge times. Both I think has reduced lifespan and increased hazards for lithium batteries. The Hoverboard issues appear to be related to quality, and type of charge system. I've seen problems many times with iPhone chargers not from Apple. People should not assume they will work properly because they have the right connector. People should heed the warnings. I've done experiments where a simple small puncture can cause a lithium laptop battery to burn like a roman candle. Charge them properly or risk major damage.
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Researchers May Have Licked Flaming Lithium-Ion Battery Problem
Posted by: Richard Adhikari January 14, 2016 05:00 AMIncorporating a polymer switching material into lithium-ion batteries could prevent their overheating due to a process known as “thermal runaway,” according to Stanford researchers. Lithium-ion batteries consist of an anode, a cathode, a separator and a flammable electrolyte. The separator melts when a large amount of heat is generated by overcharging or shorting, ultimately resulting in a thermal runaway. Pressures and temperatures can rise inside cells too fast to control using existing safety mechanisms.