5 ms·
re: Tesla - and they have individual fuses on every cell. And they have liquid cooling for every cell. And they have a rugged enclosure that has been designed t
by jpm_sd 9y ago
re: Tesla - and they have individual fuses on every cell. And they have liquid cooling for every cell. And they have a rugged enclosure that has been designed to fail in a somewhat safe way while (briefly) containing the fire.
- agumonkey 9y agoHave you seen docs about their batteries ?
- jpm_sd 9y agoyes, they made all their patents public awhile back. also: https://www.google.com/search?q=tesla+battery+teardown&oq=tesla+battery+teardown https://www.google.com/search?q=tesla+battery+teardown&oq=te...
- gruez 9y agoaren't all patents required to be public?
- jpm_sd 9y agoderp, I meant [quasi-]"public domain" and therefore, in some legal sense, safe for engineers to read without fear of getting sued. https://www.tesla.com/blog/all-our-patent-are-belong-you https://www.tesla.com/blog/all-our-patent-are-belong-you
- agumonkey 9y agoSomehow I never considered batteries as part of their IP :) Thanks
- cagenut 9y agonot a doc but a good writeup with pictures of failure testing the 'powerpack' product: https://electrek.co/2016/12/19/tesla-fire-powerpack-test-safety/ https://electrek.co/2016/12/19/tesla-fire-powerpack-test-saf... I sure as shit would not want 1/10th of that in my garage ever.
- agumonkey 9y agoThanks
- vamin 9y agoNot arguing that you shouldn't pay close attention to safety considerations, but many of those optimizations are necessary for Tesla because they have constraints that would be easy to relax in a DIY scenario: very low volume/high density, the possibility of a collision, consistent proximity to humans, etc. I don't think it's fair to suggest that you need to be individually liquid cooling every cell to ensure safety.