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At present, the main producers of lithium batteries in the world are China, Japan and South Korea. With industrial advantages and technology accumulation, Panasonic, LG Chem, and Samsung SDI are still the three giants in the field of lithium batteries. Panasonic adopts a high-nickel ternary route, and the packaging is mainly cylindrical. Its cylindrical battery has a world-leading energy density and maintains a good cooperative relationship with Tesla. It is a leader in the power battery industry; LG Chem started a little later, and the battery positive electrode Mainly ternary NCM, which is recognized as the leader of soft packs at home and abroad, with many high-quality customers, including Hyundai, GM, Renault, Nissan, etc., is a rising star in the power battery industry; Samsung has long been based on the R&D and production of consumer lithium batteries, and has accumulated profound technology , The development of large-capacity square hard-shell batteries mainly.

Samsung SDI power battery factories are mainly distributed in China, Europe and South Korea. They are located in Ulsan, South Korea, Xi'an, China and Gede, Hungary. Among them, the factory in Ulsan, South Korea was the first to be put into production. Currently, it mainly provides power batteries for BMW i3 and i8. In August 2014, the Samsung SDI automotive power battery factory started construction with a total investment of 600 million US dollars. It was completed and put into operation in October 2015. It can supply batteries for more than 40,000 pure electric vehicles every year. It is planned to exceed 1 billion US dollars in sales in 2020.