Tesla is expected to announce details of its "Million Mile" battery at the "Battery Day" event.
Combined with the previously revealed patent, this battery is a lithium-ion battery, using a new generation of "monocrystalline" NMC 532 cathode and a new advanced electrolyte, can make the electric car last for 1 million miles (about 1.61 million kilometers). This means that if the battery is installed in the car, even if the car is scrapped, the battery can continue to be used.
Traditional production processes sometimes lead to the formation of lithium substrate impurities, while reducing the lithium content of the battery can reduce impurity contamination, but also lead to poor battery electrochemical performance.
In this regard, Tesla submitted a patent called "nickel-cobalt-aluminum electrode synthesis method", amended the ratio of lithium to other metals, will limit the formation of impurities in the battery material production heating process.
This process helps develop impurity-free single-crystal nickel-cobalt-aluminum, and the new electrode combination allows the battery to reach more than 4,000 charge cycles.
If this technology can be successfully landed, Tesla electric cars in the future is expected to be able to accumulate more than 1 million kilometers without replacing the battery, the whole vehicle life than fuel cars.
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