Isn’t that incredibly wasteful in terms of space and materials? Why not just use a few large lithium ion cells?
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Most big batteries are just a lot of little batteries stuck together. I generally agree that electric cars are wasteful, but one big lithium battery would have about the same size and material demand as a bunch of little ones of the same spec anyway. Handling a bunch of 18650s is undoubtedly safer than handling big pieces of lithium, and individual batteries can sort of contain their own internal issues without damaging the entire assembly.
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