As a power battery giant, Samsung SDI's advancement in product technology has always been very noticeable. The above-mentioned new battery module can make the vehicle cruising range up to 600-700 kilometers, even if the technology has not yet officially applied to the market, but as a reserve technology, but also walk in the forefront of the same industry. It is clear that Samsung SDI is making every effort to increase the energy density of power batteries in order to increase the mileage of electric vehicles, so as to fully attract the attention of automobile manufacturers and occupy a dominant position in the market. In fact, in order to meet the needs of downstream end-users, in the process of R&D of high-energy-density batteries, large international battery companies have increased R&D investment by improving the raw material systems such as positive and negative materials, separators, and electrolytes, and optimizing the PACK structure. There have been repeated news to increase the energy density of batteries and battery systems. SKI announced on August 30 this year that it will begin mass production of NCM811 batteries in South Korea. It will begin supplying batteries for energy storage systems in December this year and will provide batteries for electric vehicles in the third quarter of next year. Lee Jon-ha, chief researcher of the SKI Battery R&D Center, also stated: “The battery is expected to extend the range of electric vehicles to 500km and will start researching and developing new batteries before 2020. It is expected that the cruising range will reach 700km.†As the world’s largest new energy vehicle production and sales market, China’s power battery companies have strong policies and the market has “near-season access to the water†and many other advantages. The development of power battery energy density is also a significant improvement. From the perspective of practical applications, the power battery energy density improvement effect is significant. A total of 1-8 batches of "Recommended Vehicle Catalogues for Promotion and Application of New Energy Vehicles" issued by the Ministry of Industry and Information Technology show that among the 265 pure electric passenger vehicles, the models with cruising range of 150-199 KM account for the highest proportion, reaching 53.96%, and the number has 143 models. There are as many as 21 models and 51 models with cruising range of 200-250km and 250-300km, and 39 models with 300-399km. Only one model has a cruising range below 150 KM, but there are 10 models with a cruising range of over 400 KM and a cruising range of up to 450 KM from BYD Auto. From the perspective of technology research and development, advances in battery energy density, such as Ningde Times, Guoxuan Hi-Tech, Tianjin Lishen, BYD, CNAC Lithium Battery, BAK, and Thornton New Energy, have frequently attracted industry attention. Ningde era: competing with Samsung SDI at the Frankfurt Motor Show on the same stage, the domestic power battery giant Ningde also exhibited a full range of products, covering batteries, modules, vehicle battery packs, providing 12V/48V stop, mixing Power battery solutions for various models such as power cars, plug-in hybrid vehicles and pure electric vehicles. It is understood that the Ningde era insisted on iterative research and development of products, in the case of the same size of the outer core batteries, the battery capacity is upgraded, so as to be able to meet the higher mileage requirements. At present, the Ningde era is developing energy-concentrated 300Wh/Kg next-generation battery products that will allow electric vehicles to travel more than 600 kilometers after one full charge. Guoxuan Hi-Tech: News of the Ministry of Science and Technology website on May 19 said that under the support of the national key research and development program “New Energy Vehicleâ€, the project led by Hefei Guoxuan Gaoke Power Energy Co., Ltd. “High Specific Energy Lithium Ion†The research and development of integrated battery and integrated applications have achieved a phased progress, and battery cells with energy densities of 281Wh/kg and 302Wh/kg have been developed. At present, the use of high-nickel cathode material matching silicon-based anode material to achieve a single cell energy density of 281Wh/kg, 1C rate charge and discharge room temperature cycle 350 times to maintain 80%; using lithium-rich cathode material matching silicon-based anode material to achieve single cell The energy density is up to 302Wh/kg, and 0.5C times the room temperature is released and the room temperature is maintained at 80% for 195 times. Tianjin Lishen: April 13th Ministry of Science and Technology website news, Tianjin Lishen Battery Co., Ltd. led the project "high-density energy density lithium-ion battery development and industrialization technology research and development" energy density of 260Wh/kg Power battery cells have a 30% increase in energy density compared to the power batteries commonly used in current electric vehicles. The project team has carried out in-depth research and technical breakthroughs in areas such as increasing power battery weight-specific energy density and dramatically increasing cycle life, including the development of new high-nickel cathode materials, silicon-carbon composite anode materials, and new electrolytes, etc.; With a density of 260Wh/kg, the capacity retention rate reached 83.28% after 350 charge-discharge cycles. At the same time, power battery samples with energy density of 280Wh/kg and 300Wh/kg were developed. BAK: In terms of energy density improvement, BAK Power began researching and developing triple-cell batteries in 2007. The cathode material system passed NCM111 and NCM532 to the current NCM811 and NCA R&D. In terms of anode materials, artificial graphite has reached the energy density ceiling. More focused on the development of silicon-based materials. 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Automotive power battery
Power Battery Giant Energy Density Competition Upgrade
At the Frankfurt Auto Show held recently, Samsung SDI demonstrated a new "multi-function battery pack" solution. Users can change the number of modules according to their own wishes to change the mileage of the vehicle. If a high-end car is equipped with 20 battery modules, the vehicle's cruising range can reach 600-700 kilometers; while a typical car with 10 to 12 battery modules is installed, the cruising range can reach 300 kilometers.