Elon 'third row' interview . . . a box in a box

Discussion in 'Tesla' started by bwilson4web, Feb 21, 2020.

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  1. bwilson4web

    bwilson4web Well-Known Member Subscriber

    During the "Third Row" row interview, Elon made a comment about building battery modules, a pack assembly, and then the pack in a box. Thinking about it, there is a reasonable approach:
    battery_pack_010.jpg
    • Eliminate individual cells by starting with a battery block.
    • Either cylindrical or prismatic recesses, which ever is easiest to stuff.
      • cylindrical is traditional for a 'jelly roll'
      • prismatic uses a sandwich (aka., the Toyota style)
    • Bottom has base buss bars for assembling cells into groups.
    • Top has the fuse wires and top buss bars.
    • Coolant channels run through the battery block.
    The battery block replaces individual cell walls. This approach makes a single battery assembly with the cells and interconnects. Dimensions are optimized for efficiency and thermal management.

    In this sketch, the cooling channels are shown between top and bottom surfaces. However, the cooling channels could go side-to-side so the bottom remains flat. The coolant manifolds would be on the edges.

    Bob Wilson
     
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