Use wechat scan QR code < / P > < p > to share with friends and circle of friends < / P > < p > < / P > < p > < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E6%9D%BE%E4%B8%8B "> Panasonic < / a > believes that with nearly a century's automobile < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%94%B5%E6%B1%A0 "> battery < / a > manufacturing experience, the company has the ability to mass produce < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%89%B9%E6%96%AF%E6%8B%89 "> Tesla's new generation 4680 battery, which is also a cheaper popular type < 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 > key. < / P > < p > Elon, CEO of Tesla, an electric vehicle manufacturer · < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E9%A9%AC%E6%96%AF%E5%85%8B "> Elon Musk held Tesla battery day in September last year The 4680 ear less battery was first released on the Internet, saying it was a "major breakthrough" in battery technology and would make it possible for Tesla to produce an electric car for $25000, about a third lower than Tesla's cheapest model 3. Although Tesla plans to make its own 4680 battery in the company, it also requires Panasonic, its oldest qualified battery supplier, to start producing this type of battery. The 4680 type ear less battery has higher density and larger volume. It is named after the size of a single battery with a diameter of 46mm and a height of 80mm. It is similar to a reduced version of canned beer in appearance. But to a large extent, the practicability of this new battery has not been confirmed. Industry experts even question whether this kind of battery can achieve mass production. "There are a lot of major technical issues that need to be addressed, and a lot of people in the industry have been working on them for years," said ram Chandrasekaran, transportation analyst at wood Mackenzie, a market research firm "If they do, these batteries will be groundbreaking. But whether this kind of battery can be delivered has not been decided < / P > < p > Panasonic said that it has unparalleled advantages in bringing this new battery to the market. At present, Panasonic is working to build a production line for battery prototype testing. < / P > < p > "to produce this larger battery, we need to upgrade the manufacturing process to one or two levels, otherwise there will be safety problems," takamoto Kangming, the battery director of Panasonic electric vehicles, said in an interview. He said the company's proven safety management system "definitely gives us the upper hand in this area.". < / P > < p > the advantage of the 4680 battery is that the battery size is more than five times the smaller 1865 and 2170 batteries Panasonic currently supplies to Tesla. This means that the number of battery cells needed in electric vehicles can be reduced from 4000 to 8000 to about 500, which means that there are fewer bonding components used to connect individual battery cells together. Akio Nagasaki, head of technology strategy for takamoto's Kangming team, said that new batteries such as the 4680 battery are "the key to the mass promotion of cheaper electric vehicles.". < / P > < p > however, larger capacity also makes battery production more difficult. This kind of battery is easy to overheat, because it is difficult to radiate heat from the center. They are also more susceptible to particulate pollution, which is a common cause of electric vehicle battery fires, and when tiny metal fragments enter the battery, they can cause a short circuit, Mr. takamoto said. < / P > < p > takamoto Kangming said that compared with other electric vehicle battery manufacturers, Panasonic's speed in expanding production scale is not fast, but the company's advantage lies in safety, and can steadily expand production on the premise of ensuring safety standards. Panasonic's proprietary technology, which produces 2.5 billion batteries a year without major safety issues, also gives it an advantage in producing 4680 batteries, he said. < / P > < p > as Tesla and Panasonic push for a new generation of batteries, almost all automakers are competing to ensure their core parts supply. Chandra secaran of wood McKenzie said that as the whole industry turns to electric vehicles, batteries are crucial to the model division of automobile manufacturers. "This is a critical moment," he said. < / P > < p > for fear of battery shortage in the future, automobile manufacturers such as Volkswagen have asked suppliers to provide more batteries, and even started to produce their own batteries. Chandrasekaran said this has led to significant tensions between vehicle manufacturers and suppliers, as battery manufacturers are reluctant to invest in new capacity based solely on optimistic forecasts of future electric vehicle sales prospects. < / P > < p > this situation is obvious in the development process of 4680 battery. Musk has set an extremely aggressive target for Tesla, saying that Tesla's annual production of electric vehicles will reach 20 million by 2030. He plans to make his own batteries in the company. It is reported that musk is also discussing cooperation with battery manufacturers other than Panasonic. Panasonic, in turn, said it would be ready to sell the battery to electric car manufacturers other than Tesla. < / P > < p > however, the development of new generation battery technology also highlights that if the electric vehicle manufacturers and battery suppliers can now develop unique technologies and benefit from the future wave of electric vehicle sales growth, then the two sides are likely to usher in a win-win situation. In his speech at the European Battery Conference held in November last year, musk also acknowledged the challenges of mass production of 4680 battery. Mr musk said Tesla had built the battery on a "test bench" and planned to pilot it in a "pilot plant" soon, but "it is much more difficult to expand the production process than to prove the feasibility of the battery in the laboratory." < / P > < p > since 2010, Panasonic has been mass producing lithium-ion batteries for vehicles. At about the same time, Tesla, its largest partner, has just come on the market. < / P > < p > in October last year, the chief financial officer of Panasonic announced that the company would start to study the 4680 battery. Shortly after that, James Frith, a market analyst at Bloomberg, wrote in a report that "working with partners like Panasonic with extensive experience in mass production of batteries will increase the possibility of Tesla achieving its battery day goal." < / P > < p > for Panasonic, it is reducing its dependence on the core business of consumer electronics, and the 4680 battery required by Tesla is also a potential source of growth for the company. 考虑到马斯克希望上路的电动汽车数量以及?
2023-03-22 10:04:31