Stainless steel battery box

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Boxster EV
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Stainless steel battery box

Post by Boxster EV »

This is for the Opel/Vauxhall/Chevy Volt. It is designed to take the smaller of the three modules.

Might be useful for an alternative pack too.

Of interest to anyone?


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remy_martian
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Re: Stainless steel battery box

Post by remy_martian »

Am curious how you X-creased the walls?
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Re: Stainless steel battery box

Post by Boxster EV »

remy_martian wrote: Sun Jun 05, 2022 6:41 am Am curious how you X-creased the walls?
No idea. It was done by a local engineering shop.
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Re: Stainless steel battery box

Post by arber333 »

remy_martian wrote: Sun Jun 05, 2022 6:41 am Am curious how you X-creased the walls?
They were made on hydraulic press. I have those made into my box too. They are suppose to strengthen the wall a bit so it doesnt wobble. No Omega profile welding required.
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Re: Stainless steel battery box

Post by remy_martian »

The house HVAC guys do it as a regular course, but it's a much thinner gauge that they work with. Which is why I asked.
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Re: Stainless steel battery box

Post by nilsvr »

Hi
What ist the thickness of the stainless steel and would you, if you built a new box go with thicker or thinner sheets?

I am trying to fit all 200kg of my I3 Battery in a single box and was wondering what sheet thickness to get.
My design sadly has no space for X-creases but I have two 20mm thick horizontal aluminium plates in the box for stability (and battery module mounting/cooling).
Would love to hear some opinions or experiences about sheet thickness and stainless/non-stainless steel.

And a safety question: I have read a few times about isolating the battery boxes. Is hat an actual thing that should/has to be done? The I3 had the aluminium modules directly bolted to the aluminium battery box, which is (as far as I know) directly bolted to the metal frame, so no isolation here.
My common sense says that 360V potentially shorted to the chassis is no good idea but I also see that in a crash that reaches the battery there probably also is a short to chassis created anyways.

I know the classifieds section is probably not the right place to post this and hope to not bring anyones wrath over me by doing so.
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