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. .Post #: 66188699 Just highlighting this for you both. Tesla...

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    . .Post #: 66188699 Just highlighting this for you both. Tesla is about to extend the Giga Nevada factory to produce NCM811 batteries called 4680. That technology is not going away anytime soon. It will be used extensively in Tesla's future plans which will be announced on 1st March. I did notice that the SVOLT battery you mentioned was 75% nickel with 600km range compared to the Tesla 4680 battery of 81.6% nickel with Model Y long range 75KWh battery pack getting 330m (528km). Model S long range is 405m(648km) Does the Nickel/Manganese % make a difference to thermal runaway?

    Even though the 4680 cells are larger, eliminating the tab actually makes it easier for electrons to get around inside the cell than in the current 2170 cells. “You actually have a shorter path length in a large tabless cell than you have in a smaller cell with tabs,” Musk said. This is because in the rolled 2170 cells the electrons have to flow the full length of the jelly roll creating heat due to electrical resistance within the battery. The 4680 tabless design the electrons flow top to bottom creating far less resistance inside the cell. It's also a lot easier and efficient to cool.

    Recently SVolt, Dragon Armour Battery claims 1000km is possible but I don't see where they list battery size with vehicle weight. A little spurious IMO as they could be using a sales pitch like car manufacturers do? Not saying it's not possible but Svolt is a Chinese company owned by Great Wall which is a State Owned Enterprise. China Great Wall is 75.5% owned by the Ministry of Finance, 19% owned by the National Council for Social Security Fund and 1% owned by China Life Group. Are the battery claims all true? Let's see. At this stage the US will be blocking any cars or cells not manufactured in the US. Joe Biden has made sure of that.

    Here is an excerpt from a 4680 analyst,
    Moreover, independent 4680 battery teardowns and chemistry analysis shows that Tesla is still using the regular 811 nickel-manganese-cobalt mixture for the cathodes and ordinary graphite anodes. Be it because of the price of raw materials that go into batteries for performance electric vehicles now, or simply for the lack of necessary manufacturing technology or equipment, the high-nickel and silicon electrodes that bring about true cost, range, and performance improvements, are still to come for Tesla vehicles with the 4680 battery. Even NIO, which is farther ahead in the development and mass production of a 150 kWh high-nickel battery that is supposed to propel its top ET5 and ET7 performance sedan versions for more than 620 miles on a charge, had to postpone their launch. Its battery maker WeLion was supposed to deliver the first mass-produced batch of 150 kWh semi-solid packs with high-nickel technology this month, but the launch of the top ET5 and ET7 models has now been stretched into 2023 as the technology needs further validation.
 
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