Musk describes the Battery Day event as one of the most exciting days in Tesla’s history.

Elon Musk announced a new postponement for the Battery Day event due to coronavirus crisis, after it was preceded by yet another postponement before. Initially Battery Day was to be held in April, but due to a pandemic it was postponed until mid-June. Tesla’s CEO finally announced that this event will take place along with the company’s annual shareholder meeting on September 15.

The Battery Day event is expected to be very important from Tesla as huge changes in battery production and technology will be announced. Elon Musk will probably announce a new production battery cell system that will include reduced production costs and much greater durability.

New revolutionary million mile battery (1.6 million kilometers) will be the big news from Tesla. In terms of battery technology, Tesla will replace the graphite anode in conventional lithium-ion cells with lithium metal. This results in a significant increase in energy density.

Battery Day event

More specifically, Tesla is preparing a hybrid battery technology that will include lithium-ion and lithium metal as a range extender. This is a combination of two batteries in one where the vehicle can have two modes of operation, the lithium metal model and lithium ion mode.

Thus the vehicle for short journeys will use the lithium-ion mode while for longer distances the lithium metal mode. It’s something like adding an extra gas tank to a conventional car.

Read also : Tesla Model S exceeds 400 miles of range

Musk describes Battery Day as “one of the most exciting days in Tesla’s history,” but has said little about what will be revealed. Will it be the new hybrid battery mentioned above? or reason of the postponement for September should be expect even bigger surprises?

Earlier this month, the Chinese battery maker, Contemporary Amperex Technology Co. Ltd. (CATL), revealed that it had developed a battery with a life of 16 years and capable of powering a vehicle for 1.24 million miles. Production costs are only 10% higher than the batteries currently used in electric vehicles.

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