NEW YORK: The advanced battery cell design and new manufacturing processes outlined by Tesla Inc CEO Elon Musk are promising, battery experts say, but they questioned how quickly they can be implemented and how much they’ll contribute to reducing overall costs.
Tesla's new battery cell - a larger cylindrical format called 4680 that can store more energy and is easier to make - is key to achieving the goal of cutting battery costs in half and ramping up battery production nearly 100-fold by 2030.
Shirley Meng, a professor at the University of California San Diego:"Most of the claims were expected, like the 4680 format, the tabless design, the silicon anode, the diversified cathode choices. I was caught by surprise by the cathode manufacturing process and the new aluminum-based alloys.
"As Musk mentioned, battery electrode processing involves adding and later removing solvent, so it seems intuitively like there should be a way to cut out that step. The solvent addition really helps to blend the multiple desired components, so getting good adhesion and mixing without the solvent I expect to be challenging."
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