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Week Failure: Tesla Battery Separation



It takes a lot of energy to push an object the size of a car several hundred miles away. Either a few gallons of gasoline or a few thousand lithium batteries will do the job. This is certainly a lot of batteries and much more potential to be unlocked for their use than throwing metal pieces on wheels. If you have an idea how to better use these batteries for something else, this is certainly an option, although it is not always as easy as it seems.

In this video [Kerry] in [EVEngineering] he got a Tesla Model 3 battery and started to separate it. Unlike other Tesla batteries, and even more so than the Leaf or Prius packs, the Model 3 battery is extremely difficult to operate. As a measure of cost savings, it seems that Tesla realized that gluing individual cells together would be cheaper than other methods in which cells are more modular and serviceable. This means that in order to remove individual cells without damaging them, you need to remove several layers of glue and plastic before you can start knocking the cells with a PEX wedge and hammer.

If you happen to have a Model 3 battery lying around, [Kerry] notes that it is possible to reuse cells if you have time, but we don't recommend it unless you really need the energy density found in those 21

700 cells. Obviously, they are not easy to find outside the Model 3 packages, and anyway, it looks like using a Nissan Leaf battery can be a lot easier.



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