Panasonic to begin mass producing new 4680 Tesla battery by March 2024
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Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#2Article was written when they thought this was coming at the end of this month… actually 25 months away.
Did the share price spike? If so who made money?
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#3This cylindrical form factor might make sense for batteries that have thermal runaway potential, to keep the unit size small so that the whole battery doesn't go into thermal runaway, only one cell.
But for LFP or iron based batteries which don't have such issues, the blade design should be cheaper, more maintainable, more space and weight efficient etc. There's no glue so you can actually just switch individual blades. Cooling channels can be straight.
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#4This cylindrical form factor might make sense for batteries that have thermal runaway potential, to keep the unit size small so that the whole battery doesn't go into thermal runaway, only one cell. But for LFP or iron based batteries which don't have such issues, the blade design should be cheaper, more maintainable, more space and weight efficient etc. There's no glue so you can actually just switch individual blad…
Assuming this image I found online is of 4680s, there’s quite a bit of wasted space: https://www.teslarati.com/wp-content/uploads/2021/01/tesla-4...
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#5This cylindrical form factor might make sense for batteries that have thermal runaway potential, to keep the unit size small so that the whole battery doesn't go into thermal runaway, only one cell. But for LFP or iron based batteries which don't have such issues, the blade design should be cheaper, more maintainable, more space and weight efficient etc. There's no glue so you can actually just switch individual blad…
Assuming this image I found online is of 4680s, there’s quite a bit of wasted space: https://www.teslarati.com/wp-content/uploads/2021/01/tesla-4...
Isn't some of that "wasted" space necessary for cooling the batteries?
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#6This cylindrical form factor might make sense for batteries that have thermal runaway potential, to keep the unit size small so that the whole battery doesn't go into thermal runaway, only one cell. But for LFP or iron based batteries which don't have such issues, the blade design should be cheaper, more maintainable, more space and weight efficient etc. There's no glue so you can actually just switch individual blad…
Assuming this image I found online is of 4680s, there’s quite a bit of wasted space: https://www.teslarati.com/wp-content/uploads/2021/01/tesla-4...
Volumetric efficiency is not a big concern for EVs. They already have more storage than an equivalent ICE vehicle (frunk, no trans tunnel, etc). Giving up space for better weight and cooling is worth it.
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#7EEVblog video "New Tesla 4680 Battery Cell EXPLAINED" from 2020:
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#8This cylindrical form factor might make sense for batteries that have thermal runaway potential, to keep the unit size small so that the whole battery doesn't go into thermal runaway, only one cell. But for LFP or iron based batteries which don't have such issues, the blade design should be cheaper, more maintainable, more space and weight efficient etc. There's no glue so you can actually just switch individual blad…
Assuming this image I found online is of 4680s, there’s quite a bit of wasted space: https://www.teslarati.com/wp-content/uploads/2021/01/tesla-4...
offset every row and significant reduction in “wasted space” also cooling is a huge part of what makes these work. We have to stop looking at battery’s from purely a cell level.
Add in the structural element, and the claim is they are now more volumetric and weight efficient than traditional packs.
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#9This cylindrical form factor might make sense for batteries that have thermal runaway potential, to keep the unit size small so that the whole battery doesn't go into thermal runaway, only one cell. But for LFP or iron based batteries which don't have such issues, the blade design should be cheaper, more maintainable, more space and weight efficient etc. There's no glue so you can actually just switch individual blad…
Sounds like the form factor Toyota has used in their NiMH packs for basically forever. They’re surprisingly serviceable for DIYers.
Re: Panasonic to begin mass producing new 4680 Tesla battery by March 2024
#10This cylindrical form factor might make sense for batteries that have thermal runaway potential, to keep the unit size small so that the whole battery doesn't go into thermal runaway, only one cell. But for LFP or iron based batteries which don't have such issues, the blade design should be cheaper, more maintainable, more space and weight efficient etc. There's no glue so you can actually just switch individual blad…
Isn't cylindrical form factor simply easier and cheaper to manufacture? Decades of industry experience manufacturing a ton of cylindrical products.