Use wechat scan QR code to share with friends and circle of friends < / P > < p > reporter Zhou Xiaoyang < / P > < p > photo source: electrek < / P > < p > < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E6%9D%BE%E4%B8%8B "> Panasonic < / a > will provide < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%89%B9%E6%96%AF%E6%8B%89 "> Tesla < / a > produces a new < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%94%B5%E6%B1%A0 "> battery < / a > sample. < / P > < p > this new battery is the "big battery" announced by Tesla on battery day on September 22, which is called "biscuit box" in the industry because it is shaped like a cylindrical biscuit box. < / P > < p > the battery, also known as the 4680 cylindrical battery, has a cell diameter of 46mm and a length of 80mm, twice the diameter of the 2170 cylindrical battery being used by Tesla Model 3 and model y, and uses new materials. < / P > < p > Elon Musk, CEO of Tesla, said on the battery day that the energy density of 4680 battery unit has increased by five times and the power has increased by six times compared with the past. After using this battery, < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%94%B5%E5%8A%A8%E6%B1%BD%E8%BD%A6 "> electric vehicle < / a > < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%BB%AD%E8%88%AA "> endurance < / a > mileage can be increased by 16%. < / P > < p > an anonymous person in the industry once told an interface news reporter that this means that an electric vehicle with this large battery will have a driving range of more than 800 km at a time. At present, the range of ordinary electric vehicles on the market is mostly below 500 km. According to Nikkei, a Japanese Business Journal, Tesla said that the production cost per kilowatt hour of this large battery will be less than half of the current mainstream battery. < / P > < p > at present, Tesla only produces 4680 large batteries in its own battery factory in Fremont. < / P > < p > Panasonic plans to add a 4680 battery production line to the existing production line of Giga Factory 1 in Nevada. According to Nikkei, Panasonic will invest tens of millions of dollars in the new production line. < / P > < p > Giga Factory 1 is a joint venture between Panasonic and Tesla. As one of Tesla's most important battery suppliers, Panasonic plans to expand the production of < font face = "inherit" > Giga Factory 1 by 10% to 39 GWH in 2021. < / P > < p > this is the first production expansion of Giga Factory 1 since its operation in 2017. Panasonic will invest 100 million US dollars in this expansion. At present, Giga Factory 1 has 13 battery production lines with an annual capacity of 35 & nbsp; GWH. < / P > < p > in 2019, Tesla, which is expanding rapidly, urgently needs battery production to keep up with the pace. But because of rising operating costs, Panasonic decided to stop the expansion plan of Giga factory1 and suspend investment in Tesla's Shanghai plant. < / P > < p > in April 2019, musk tweeted publicly that Panasonic's battery capacity limited the expansion of model 3. < / P > < p > since then, the relationship between the two giants has become tense. < / P > < p > in order not to be constrained by Panasonic's battery capacity, Tesla has brought LG Chemical and Ningde era into its supply chain system and started to prepare to build its own battery factory. < / font > < / P > < p > in addition to deeply binding Tesla, Panasonic is also looking for future partnerships with other companies on some production projects, according to Nikkei. < / P > < p > while expanding the production of Giga Factory 1, Panasonic is considering building a large joint venture battery factory in Norway with equinor and hydro. Nikkei reported that although Tesla intends to make its own batteries, it is difficult for an automobile manufacturer to cover the whole industry chain by itself. < / P > < p > Tesla also plans to promote the production of 4680 large batteries at its Berlin plant and other plants. < / P > < p > < / P > < p > < / P > < p > use wechat scan QR code < / P > < p > to share with friends and circle of friends < / P > < p >