Thursday, October 31, 2013

Peter DeLorenzo: Sources Say Tesla Batteries Not Sufficiently Protected

Tesla-ModelS-platform

Reports from unnamed sources critical of competitors are not the most reliable, but Pete DeLorenzo says according to his sources within the auto industry a design shortcoming is the reason why the batteries in two Tesla Model S cars have recently started fires following collisions. Presumably DeLorenzo's source or sources are within General Motors because they compare the way the battery pack is housed in Tesla to the way the Chevy Volt does it. Tesla CEO Elon Musk has stressed how his company protects the battery pack with 1/4″ thick armor plating underneath the car, but DeLorenzo's source says that is essentially a band-aid solution to the fact that the battery pack itself has only a single protective shield, compared to the three layers of wrapping that the Volt's battery pack has.

From DeLorenzo's Autoextremist site:

What I've found out about the Tesla is this: There is a reason for fires upon impact with the Model S and it has nothing to do with the batteries themselves but how the batteries are – or are not, as the case may be – protected in the vehicle.

We all know Elon is a genius and that Tesla is the miracle of the new automotive world, but the fact remains that the miracle workers at Tesla skipped a step. It's something that GM – you know, that tired old rust-belt auto company from a bygone era – learned while developing the Volt. The GM engineering team zeroed in on a critical area of concern with the Volt's batteries when it came to protecting them upon impact, something like, "Gee, if someone were to really crash one of these things there could be a problem with the batteries, so, we better do something about it." So the GM development team triple-wrapped the Volt battery pack to reduce the chance of "piercing" during accidents.

And guess what? The "piercing" of the batteries is exactly what caused the two post-crash fires in the Model S. Why? The Tesla development team chose to single-wrap the Tesla batteries, thus leaving the batteries less protected and more exposed during incidents, which is a giant heaping, steaming bowl of Not Good, when it comes right down to it.



from The Truth About Cars http://www.thetruthaboutcars.com

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