Tesla 18650 Cell Chemistry

In 2015 panasonic altered the anode design increasing cell capacity by about 6 enabling the battery packs to store up to 90 kwh of energy.

Tesla 18650 cell chemistry.

My annoying dc load stopped the 10a. Since its inception tesla has been using 18650 battery cells made by panasonic but tesla works with the japanese manufacturer to tune the chemistry of the cells which make them unique and not. The panasonic 18650 cell was already state of the art. The most popular battery pack supplied by tesla contains 7 104 18650 cells in 16 444 cell modules capable of storing up to 85 kwh of energy.

Tesla tsla has recently introduced plans to produce its own battery cells called 4680 but now we learn that panasonic will also be producing the new cell for them according to a new report. The pf is a very similar cell with the same chemistry with probably only minor differences in electrolyte additives and separator structure. Note that these numbers are on cell level only in a battery pack you also need interconnections control hardware and cooling. These used 18650 tesla battery modules from a 85kwh model s.

They are rated at 500 amps 750 amps peak. Tesla model s 18650 cell test data. Battery charging started. Model s modules are comprised of 3400mah cells arranged in a 74p6s configuration.

With the design of its early vehicles tesla was not a big enough player in the battery market to be able to design the ideal battery cell and instead used the next best thing standard 18650. Discussion in model s. The chemistry used in the batteries utilized in the company s plug in electric vehicles is nickel cobalt aluminum oxide nca while the chemistry used in its energy storage products is nickel. We see a 15 increase in volume density and a 15 increase in weight density.

The li ion 21 70 and the older 18650 cells used in tesla vehicles have nickel cobalt aluminum nca chemistry. Here are individual cell test results tesla model s.