ElectricMotorcycleForum.com
Makes And Models => Energica => Topic started by: Pard on March 05, 2023, 08:42:34 AM
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Very interesting video about the LiveWire battery pack.
I wonder how it is different from the Energica.
https://www.youtube.com/watch?v=Tffywb4A3_8
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Very interesting video about the LiveWire battery pack.
I wonder how it is different from the Energica.
It compares some of it right at 8 minutes into the video.
-Don- Auburn, CA
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Video states that Energica uses cylindrical cells and here we all thought they were pouch cells.
Video states Rivian uses Prismatic cells and here we all thought they were 2170 cylindrical cells.
Calling this video bogus.
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Jack is... what I will politely call an unreliable narrator. I would not necessarily believe anything he says.
That being said, yes the LiveWire does use prismatic cans. It is also my understanding that they're all 1 string, no parallel packs. Energica 100% uses pouch cells.
He touches on the thermal management of the LiveWire pack as being very good. He is correct; it is. But he has no idea why. It is because the pack is exceptionally-cleverly designed. The case itself has extremely long, narrow cooling fins all around the outside. Additionally, near the rider's knees on both left and right side of the bike there are these large sort of ram scoops that flush air in a Y shape to the middle of the pack and out the back. The entire pack is sealed, no cells are exposed, but there is a Y shaped cooling channel in the case by design.
Finally, the pack was engineered so that each prismatic can is, in some way, touching part of the case that has airflow going past it. This creates an incredibly uniform thermal gradient, or a minimum temperature delta throughout. This also helps ensure pack longevity if all the cells are within 5 degrees of each other at all times. This is a truly great engineering achievement, so props to the LiveWire battery team.
And yes there have been battery pack warranties. I don't care if Jack knows about them or not.
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Appreciate all the above info. I had no idea.
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I was absent the day they covered battery packs