Tesla’s new 2170 battery – Highest and Cheapest Energy Density Cell in the World

Jan 22, 2017
Tesla, and its battery partner Panasonic, started production of cells for qualification at the plant in December, but today, it confirmed the start of “mass production” of the new battery cell, which will enable several of Tesla’s new products, including the Model 3.

The new cell is called ‘2170’ because it’s 21mm by 70mm. It’s thicker and taller than the previous cell that Tesla developed with Panasonic, which was in an ‘18650’ cell format.

Tesla CEO Elon Musk has been boasting about the new cell over the past few month. He said that it’s the “highest energy density cell in the world and also the cheapest”.

Power = Voltage x Current
W = 3.7V x 20A
W = 74

A 26650 has a maximum realistic capacity of around 5000 mAH with a volume of 34510.4 mm3
A 2170 has a maximum realistic capacity of around 5900 mAH with a volume of 24245.24 mm3

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