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Who made the world's largest lithium battery? Jul 24, 2018

In the development of large-scale lithium batteries, Tesla Model 3 is a monumental existence. Since Tesla introduced the first generation of Model 3, the development of large-scale lithium batteries used in electric vehicles has reached a new peak. Recently Tesla engineers began to iterate on Model 3's battery technology.


The already exposed photos and videos show the new battery structure of the Model 3, and Tesla reduces the weight of the battery pack by transferring battery protection from the battery case to the body structure.

world's largest lithium battery.jpg

Compared to the model S, Tesla successfully reduced the number of wires on the Model 3 to 1,500 meters. The Model S has 3,000 meters of wires for connecting the drive unit, charging port, air conditioner and heater, and Tesla uses aluminum alloy. The high-voltage cable is twice as light as the copper wire, which is another innovation of Tesla.

The Model 3 battery pack is 2.5 inches (64 mm) shorter than the Model S battery pack and has the same capacity of 75 kWh.

largest lithium battery.jpg

The picture above shows how the battery pack is connected to the rear drive unit and the rear charging port and the two wires extend all the way down the battery pack, up to the center screen, air conditioner and heater.

In addition, each module groups cells into 46 cells (cylinders), shorter modules have 23 cells, and longer blocks (centers) have 25 cells each, each module has its own BMS circuit.

Model 3 battery modules are tightly concealed in hard plastic and bolted to high-strength steel bodies to ensure the safety of batteries and related electrical and electronic systems.

The new battery pack is 15% lighter than the old battery and 6% lighter than the most advanced Tesla P100D battery pack, and its energy consumption is increased by 30-33% compared to the previous generation battery. This is the most advanced large-scale lithium battery produced in the world to date, and is one year ahead of any current product.


In addition, Tesla has completed the construction of the world's largest lithium-ion battery facility in Australia.