Quote from link description ..If you're going to watch one video on Battery Day Predictions, this is the one to watch. ...
Agree that this is good and I have great respect for anyone trying to pull all the various threads together and make whole cloth, but:
1. he plays fast and loose with percentages, for instance the 10% increase in cost for a single crystal cathode is 10% of what? [not the $88/kWh he applies it to almost certainly].
2. if the cells are increased to 4070 they are almost 4 times the power so the same cell production rate gives 4x the GWh line capacity. He then suggests 2x or 4x the cell production rate which then would lead to 8x to 16x the line capacity, not the 4x he then uses.
3. Tesla already reportedly use 5% silicon in their anode, an increase to 20% gives most of the advantage of a completely silicon anode. I think it is likely that the cells will have more silicon and hence a greater capacity increase. Panasonic cells may not use the higher silicon content that is consistent with their 20% overall capacity increase.
4. tabless electrodes do not just allow heat to be extracted faster (perhaps with plate cooling), but also cause less heat to be generated due to lower resistance.
5. cell filling with electrolyte must be part of the picture, else why would Tesla buy a specialist in cell filling equipment, they could just have bought on the open market if the cell filling was similar to existing lines.
6. roadster is an opportunity to start with low volume production of the advanced cell to pack line (building cells directly in the pack). A high scrapage rate does not no matter so much in an expensive performance above all sports car.
7. Advanced cell to pack is I think the ultimate goal, this could enable whole battery packs to be made at machine gun rates and in less volume than at present, and at lower cost. Advanced cell to pack is
very difficult, verging on the impossible. If they can demo that then my mind really would be blown.