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I like the way that Ars headlines the exciting claims, but also includes the boring facts. For example, that these claims would represent basically industry standard progress on price/kwh, and that 3 years from Elon Musk is not a useful claim, and that Tesla is stating several mutually exclusive claims.
“In the new design, by contrast, the battery cells themselves will be the structural support. "It effectively glues the cells to the top and bottom sheet" using a "structural adhesive," Musk said.”

Sounds like a challenge for repairability.

Also, do the irreplaceable batteries in iPhones and MacBooks provide structural support, too?