Founded in 2017, zhongkehai sodium is the first domestic and one of the few high-tech enterprises in the world focusing on the research and development and manufacturing of sodium ion batteries. Its core technology comes from the Clean Energy Laboratory of the Institute of physics, Chinese Academy of Sciences. The technical leader of the company is Chen Liquan, academician of the Institute of physics, Chinese Academy of Sciences, and Hu Yongsheng, chairman of the board of directors of China Science Haina and researcher of the Institute of physics, Chinese Academy of Sciences. It is understood that zhongkehai sodium has completely independent research and development capabilities in the anode and cathode materials, electrolyte, battery manufacturing technology and other technologies of sodium ion battery, and is in a leading position in the underlying R & D and product application fields of sodium ion battery at home and abroad. At present, the product core patents have been authorized by China, the United States, the European Union and other countries and regions. < / P > < p > at present, the sodium ion battery products of zhongkehai sodium are mainly used in two scenarios: one is the lead-acid battery alternative market, including 5g base station, data center, electric bicycle, etc.; the other is large-scale energy storage field, including photovoltaic, wind energy and other new energy access storage system. Tang Kun, CEO of China Scientific & technological innovation board, told the reporter, “at present, domestic electric two wheeled vehicles are generally dominated by lead-acid batteries. The new national standard for vehicle weight requirements is accelerating the replacement of lead-acid batteries with lithium batteries and other energy storage batteries, and the replacement of lead-acid batteries means a huge market opportunity.” < / P > < p > it is reported that in April 2019, the “safety technical specification for electric bicycles”, i.e. the new national standard, was formally implemented, requiring that the whole vehicle weight of electric bicycles should not be higher than 55kg, while the weight of lead-acid batteries on the market is generally more than 70kg. At the same time, lead-acid batteries use lead as the raw material of electrode plates, which has environmental problems, high recovery cost and short service life At the end of the year, when the transition period of the new deal expires, it will not be able to meet the new national standards. In this context, the market share of lithium batteries has increased significantly. In 2019, the market share of lithium batteries for electric bicycles in China will reach 13.2%, which is expected to reach about 20% in 2020. However, the price of lithium-ion batteries is high and 80% of China’s lithium resources depend on imports. < / P > < p > “a ton of lithium carbonate costs 40000 yuan, while a ton of sodium carbonate costs only 2000 yuan. Compared with lithium-ion battery, sodium ion battery has the same process, but has the cost advantage of using cheap elements, and its service life is equivalent to that of lithium-ion battery Tang Kun said that the energy density of Haina’s sodium ion battery can reach 145wh / kg. What’s more, it can achieve fast charging capacity of 6-12 minutes and can work in a wide temperature range from – 40 ℃ to 80 ℃. Tang Kun said, “the volume and weight of our sodium ion battery are less than one third of that of the lead-acid battery with the same capacity, and the cycle life is ten times longer than that of the lead-acid battery. At the same time, it has the fast charging capacity of 5-10 minutes. It is better than lead-acid battery in performance. < p > < p > < p > < p > the reporter of science and technology innovation board daily learned that the negative electrode material of Haina sodium ion battery is coal, and the cathode material is cheap metal oxide. Taking anode materials as an example, the price of graphite raw materials for mainstream lithium-ion batteries is no less than 40000 yuan / ton, while the price of coal raw materials used by Haina is only about 1000 yuan / ton. For raw materials alone, Haina can reduce the cost of the battery by about 30%. Tang Kun also pointed out that “the high cost performance ratio of sodium ion battery can not be simply understood as replacing lithium in battery with sodium, thus reducing the cost. Lithium only accounts for about 5% – 8% of the battery cost. The high cost performance ratio of Haina lies in the fact that we have taken cost reduction measures in the whole system of battery cathode, anode, electrolyte to cell process, and has completely independent intellectual property rights Core patents, relying on the underlying basic R & D experience and core technology of sodium ion battery, can we make sodium ion battery with high cost performance Tang Kun said, “after large-scale production, Haina’s Sodium battery cost advantage will be more obvious. In the window period of electric bicycle battery industry market reform and the new infrastructure boom represented by 5g base station and data center, sodium ion battery will be the strongest competitor of lithium-ion battery at present. ” < / P > < p > at present, COSCO Haina is accelerating the application of market application. It has built a pilot production line for positive and negative electrode materials, a pilot production line for megawatt hour sodium ion batteries and a complete material research and development platform. It has completed the demonstration of the world’s first low-speed sodium ion battery electric vehicle in 2018 and the world’s first 100 kwh sodium ion battery energy storage power station in 2019. Global Tech