Which batteries BMW and Jaguar use for their electric cars to achieve Tesla ranges

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Which batteries BMW and Jaguar use for their electric cars to achieve Tesla ranges-jaguar

Tesla’s trick for its electric car batteries is considered to be as simple as it is ingenious: the electric car pioneer from California is the only one in the industry to use conventional 18650 round cell batteries, such as those used in flashlights, to store electricity. Round cells have a decisive advantage: “The energy density of these round cells is around 50 percent higher than that previously used in the automotive industry. This saves a third of the material and manufacturing costs,” explained battery expert Dirk Uwe Sauer from the TU Aachen to the Suddeutsche Zeitung, which explained the battery strategy of the Bavarian car manufacturer BMW and the British manufacturer Jaguar in a detailed analysis based on Tesla. Both have set themselves the goal of taking a large chunk of the market share from the industry leader Tesla in the premium segment.

For the Model 3, Tesla switched to the somewhat more compact 2170 format. This allows the manufacturer to increase the energy density of its batteries by a further 50 percent and reduce costs by another third. The 2170 round cell has “the highest energy density in the world” and is also “the cheapest,” quotes SZ Tesla boss Elon Musk.

However, the round cells also have a disadvantage: Compared to other cell types, there is an increased risk of fire and, in the worst case, explosions. To avoid this, Tesla encases the batteries in separate steel housings and also the entire battery pack in a complex manner.

According to the newspaper, BMW is planning to use a completely new battery technology for its electric car coupe i Vision Dynamics, which in 2021 should offer a standard range of around 600 kilometers from a battery with a capacity of around 100 kWh, on which the manufacturer is researching in its specially built development center said: “We made the breakthrough at the end of 2016 with a new cell technology that will be available from 2021. I expect that we will increase the battery energy density two and a half times compared to 2010,” said BMW head of development Klaus Frohlich of the newspaper. The new technology should enable BMW to bring the weight of a 100 kWh battery to almost 500 kilograms – and thus into areas in which Tesla is moving today. BMW has not yet revealed exactly what this technology looks like.

How Jaguar wants to score against Tesla

Which batteries BMW and Jaguar use for their electric cars to achieve Tesla ranges-batteriesThe Jaguar I Pace
Jaguar, who is already going on a Tesla hunt with the electric SUV I-Pace in the coming year, is a little more willing to provide information. The British manufacturer therefore relies on pouch cells in which the cell material is layered and not rolled. This technology can deliver maximum power for longer and increases the freedom of design of the battery pack, said Wolfgang Ziebart, head of development at the Jaguar Land Rover brand group.

According to the report, he is certain that the battery life will exceed that of the vehicle: “Typically, cells last around 1000 cycles, i.e. 1000 times being fully charged, discharged and fully charged again. In our case, that would be a lifetime of 500.000 kilometers.”

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