Chinese companies are increasingly declaring themselves as developers and manufacturers of promising batteries. Foreign technology is not just copied, but improved and embodied in a commercial product. The successful work of Chinese companies leads to inevitable progress in battery performance, although we, of course, would like "all at once." But this does not happen, but the battery for more than 800 km and without expensive cobalt will soon appear. Thank you, we will say the Chinese company SVOLT Energy Technology. The other day, the leadership of SVOLT Energy, and this is a former subsidiary of the Chinese automaker Great Wall Motor, has launched a new line for the production of promising automotive lithium-ion batteries. The line will produce two types of batteries, but so far in small-scale volumes. Mass production will begin in the second half of next year. What kind of products are these? One type of battery will rely on 115 Ah cells with an energy density of 245 Wh / kg. On these cells it is planned to collect massive batteries for a wide range of electric vehicles. The second product - 226 Ah cells without cobalt - will be produced exclusively for Great Wall Motor, which plans to install them on its premium class electric vehicles. According to the manufacturer, the new long L6 cells in the battery will provide the electric vehicle with a range of up to 880 km on a single charge. The declared battery life exceeds 15 years, which can be converted to mileage of up to 1.2 million km without replacing the battery. To achieve such an impressive battery performance, Chinese engineers have developed a whole range of technologies and technological processes, starting with the replacement of cobalt anode with nickel and other materials. For example, lithium ions in a battery are replaced by nickel ions, which prevents lithium degradation during battery operation. This in itself caused technical problems that have now been successfully resolved. Also, many other innovations were introduced into the production of battery cells, as well as the design and principle of operation of the entire battery pack from a variety of cells were revised. The new battery pack is formed according to the matrix principle and can be easily scaled to the specified parameters, which also reduces the cost of battery assembly production. We add that SVOLT Energy batteries without cobalt operate at a slightly increased voltage - 4.3–4, 35 V. It is precisely because of this that the density of stored energy is higher than that of traditional lithium-ion batteries. It remains to find out how they will behave in practice.
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