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release time:2024-10-09 Hits: Popular:AG11 battery
Hitachi has made a new breakthrough in developing pure electric vehicle 12V27A battery, which can travel 400 kilometers
According to Japanese media reports, Hitachi has developed lithium battery technology for pure electric vehicles (EVs) that can travel about 400 kilometers on a single charge. Compared with previous batteries, the capacity has doubled, and the driving distance is about 40% longer than that of current pure electric vehicles. The electrodes are made of nickel alloys, etc., and by implementing improvements such as increasing thickness, a large amount of electricity can be stored. At the same time, durability has been improved, and performance will not decrease even after repeated charging and discharging. Hitachi said it will strive to achieve practical application in 2020.
Among the pure electric vehicles currently on the market, Nissan's "LEAF" can travel 280 kilometers on a single charge. If the driving distance reaches 400 kilometers, it should greatly promote the popularization of pure electric vehicles.
12V27A battery discharge or charge by moving lithium ions back and forth between electrodes. To increase the charge and discharge capacity, you need to increase the ions stored in the electrodes. The battery developed by Hitachi this time uses nickel as an important component of the positive electrode material, which is easy to store lithium ions, and increases the thickness of the electrode to twice the original, adding new ions that can be stored. Instead of using the usual carbon materials, the negative electrode uses silicon as an important component, which is easy to store and release lithium ions. Through these improvements, more electricity can be stored.
In addition, the "energy density" that shows the performance of the battery is expected to reach about twice the original value, that is, 320 watt-hours per kilogram in the state of the battery cell as the basic unit. It is close to the maximum value that 12V27A battery can reach. According to reports, if equipped with a pure electric vehicle, it can travel about 400 kilometers under standard conditions.
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