603450 polymer battery.Innovation of power battery drying process under high nickel system

When power battery companies introduce high-energy-density materials, drying equipment companies should provide customers with more consistent and faster drying products starting from the material end, and then drying the cells before liquid injection to form a high degree of cooperation.

When power battery companies introduce high-energy-density materials, drying equipment companies should provide customers with more consistent and faster drying products starting from the material end, and then drying the cells before liquid injection to form a high degree of cooperation. The countdown to large-scale market application of high-nickel system power batteries is entering. From the perspective of automakers’ support, the BMW X1 (parameter | picture) PHEV equipped with CATL’s 811 system battery has been launched, and many models including Geely Geometry A, Weilai ES6, GAC New Energy AiON.S and other models are about to be mass-produced. Announced supporting high-nickel batteries. From the perspective of power battery companies, in addition to CATL, second-tier companies are also accelerating the product development, manufacturing, and testing verification of high-nickel systems. In this context, since the production and manufacturing of high-nickel system power batteries have extremely strict requirements on moisture, environment, etc., higher requirements are also put forward for the core drying process. At the 12th High-tech Lithium Battery Industry Summit Forum to be held on June 21, Long Guobin, manager of the R&D and Manufacturing Center of Leiyu Technology, will give a keynote speech titled "Drying Process Innovation for Power Batteries under High Nickel Systems." When power battery companies introduce high-energy-density materials, drying equipment companies should provide customers with more consistent and faster drying products starting from the material end, and then drying the cells before liquid injection to form a high degree of cooperation. On the material side, from the previous NCM523 to NCM811, with the higher energy density of ternary materials, Leiyu Technology began to carry out relevant research and development and layout for the drying of the material link. At present, the powder drying automation system launched by Leiyu Technology on the market has the functions of automatic material shaking and weighing, and continuous feeding and discharging of materials, realizing unmanned production; powder contact heating, high temperature consistency, making powder powder in each area The body is heated evenly and fully dried; low energy consumption, the same production capacity can be reduced by 50%-60%; high maintainability, and rapid changeover of production can be achieved. In terms of battery core drying, in order to solve the problem of drying consistency, Leiyu Technology has launched an unrolling drying product-pole piece bakingroll to Roll high vacuum pole roll drying system. It is reported that the main features of this product are: the drying speed can reach 120m/min, the width is 900mm; there is no risk of belt breakage or ear wrinkles, and harmful substances are completely isolated; the vacuum drying is sufficient, the drying effect is good, the production capacity is high, and the energy consumption is low. The energy consumption is less than 8 times lower than the relative production capacity; the compatibility is stronger, the drying consistency is 99.99%, and the drying effect is far superior to the current drying equipment; it effectively releases the pole roll stress; it will not cause powder removal and reduce the toughness of the pole piece. Contact drying technology has become increasingly mature, has outstanding advantages, and has been accepted by battery manufacturers. Facing the innovation of high-capacity materials such as high nickel, conventional drying technologies such as ordinary air transport type, ordinary tunnel type, etc. are basically unable to meet the requirements. Powder drying - pole piece drying - battery cell drying needs to use contact type. Drying technology. Because technology is always innovating, the upstream and downstream of the supply chain should maintain close communication, continue to share, and continue to invest in research and development.