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Message: Tesla Batteries

Hey, ProsserP  I took a look at that article for which you provided the link.  Here is one small section:

More EVs, More Batteries, More Explosions

EV sales are on the rise. According to Markets and Markets Research, there will be about 27 million EVs on the road by 2030. That’s about a 21% compound growth rate.

And Prescient & Strategic Intelligence projects the global Li-ion battery market to surpass $106 billion by 2024. That’s 21.8% growth per year.

That means more EVs… more Li-ion batteries… and a lot more potential explosions.

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That whole article uses the generic term:  Lithium Ion Battery, or Li Ion Battery.  It does not distinguish in any way between the different types of lithium batteries.  As a veteran watcher of Electrovaya, you are quite familiar with the distinctions between the different Lithium Ion Battery types and the marked differences in their safety factor, especially as related to LFP batteries... one of the safest forms of Lithium Ion Battery on the market. 

 

Not just Electrovaya, but all manufacturers of LFP batteries promote this difference in safety as a huge selling point in their promotional materials, with justification.  Testing on these batteries goes way beyond the simple "Puncture Test" inferred in this article in regards to a vehicle impact situation.  Also, Boing's problem with the "Dreamliner" stemmed from the cobalt problem in its Lithium Ion Batteries, something that seems elementary to want to exclude in an airline passenger battery system.  It is baffling to me, at least, why Boeing would have ever chosen a Cobalt containing Lithium Ion Battery in the first place.  The reason, however, is not so baffling.  Cobalt Lithium Ion Batteries have the highest energy density and power density so you get "more bang for the buck"... along with a greater risk of thermal runaway.

 

I don't claim to be a battery expert, but I do know that Tesla technology has been at work for years on the problems specified in this article as "thermal runaway".  All lithium ion batteries are prone to thermal ruanaway, but there is a huge difference in their propensity for achieving this unfortunate event.  The higher the Cobalt content, the greater the tendency for thermal runaway and Musk has openly stated that his goal is to eliminate the Cobalt in Tesla batteries.

 

Just my opinion only, but I opine that this article was inadequate in discussing the situation of thermal runaway as it applies to "lithium ion batteries" since it does lump all lithium ion batteries together, contrary to the physics of the actual situation.  It is just like talking about a "car".  There have been literally thousands of different types of cars in the world over the years, different brands, different models, different propulsion systems.  "Car" is a generic word.   Lithium ion battery is the same, a generic application that doesn't begin to describe the vast differences in types of battery chemistry.   Again, JMO. 

 

Cheers and thanks for posting!     Okiedo

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