Tesla 4680 Current Collector Layout Revealed via insideevs.com
team presents another stage of the teardown of the Made-in-Texas Tesla Model Y's structural battery pack.and now we can see the current collector layout of one section of the battery , as well as the voltage sensor harness , and battery management system elements.The current collectors are welded directly to the 4680-type cylindrical battery cells, while in the case of other types, there were very small bonds between the cell and the current collectors.
According to the video, the cells are grouped by 9 units . The bricks in the 2170-type pack counted several times more cells because they are smaller and have lower capacity. Each brick is connected to the BMS, which gets info about voltage and temperature. The following part of the video reveals how advanced and complex the three-dimensional structure is, with multiple layers of various elements.'s experts praise this strategy, but it might take time to research all of the materials and solutions to better understand how it works and what's the key to making better EVs. Knowing Tesla, the company is probably already busy with new revisions/upgrades of the system in this never-ending race.
Meanwhile, the first 4680-type cell has been finally extracted from the battery pack. Munro & Associates intends to collect most of the cells and sell them to offset some of the costs of the teardown. Considering how rare the 4680-powered Model Y is and how difficult it is to get into the cells, it actually might be a worthy item for OEMs, and research centers, as well as collectors and supporters.
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