Cylindrical batteries hit the two-wheeler track

With the emergence of the replacement wave after the transition period of the new national standard, the superimposed sharing/swap market has developed rapidly, stimulated by huge demand, and a large number of lithium-ion battery companies have entered the market. From December 16th to 18th, 2020 Gaogong Lithium Electric Vehicle Annual Conference (concurrent event: Gaogong Lithium Battery 10th Anniversary Celebration and Gaogong Golden Globe Award Ceremony) kicked off at the Hyatt Hotel in Shenzhen Airport. Nearly 1,000 senior executives from the lithium-ion battery industry chain gathered to discuss the new blueprint for the industry in the next ten years. In the light vehicle special session (2) of [Xingheng Power Supply], Jin Hui, chief engineer of Tianchen New Energy Technology, gave a keynote speech entitled 'Application of Cylindrical Lithium-ion Battery on Electric Two-wheeled Vehicles'. Huang Jinhui pointed out that cylindrical lithium-ion batteries have standardized specifications and high versatility; product assembly methods are flexible, PACK space utilization is high, and can be suitable for any car model; automated production, product production is highly automated, with good consistency, safety and stability, and relative manufacturing processes ( Large battery) is easy to control; PACK technology is mature, domestic and foreign technology has been accumulated for many years, PACK production line is standardized and efficient, especially suitable for two-wheeled vehicle applications. In the field of two-wheeled vehicles, Tianchen New Energy focuses on 2.5Ah, 2.6Ah, 2.9Ah ternary 18650 cylindrical products, and reserves 21,700 batteries; in response to different market needs, the company has also developed 26,700 lithium iron phosphate battery cells. At present, the company's mass-produced 18650-2600mAh batteries can achieve a continuous 5C discharge cycle, and the maximum discharge current can withstand 10C; in terms of service life, 0.5C charge 1C discharge cycle life can reach more than 1000 times, 5C discharge cycle use The life span is more than 500 times. In view of the low temperature charging problem faced by lithium iron phosphate battery applications, the lithium iron phosphate 26700-4000mAh battery developed by the company can be used in a -10 environment, 0.2C charging, and can be recycled under normal discharge conditions. At the same time, the product is also very cost-effective. Huang Jinhui further stated that in terms of module safety design, the cylindrical battery cell has low energy, uniform heat dissipation, and good structural force. A reasonable module structure design can block a single failed battery cell and prevent the battery cell from being damaged. Chain reaction, improve and solve the thermal runaway problem of the battery pack, and improve the safety and stability of the battery pack. Tianchen New Energy is an investment holding company of Hong Kong listed company Tianchen Holdings (HK01201). It focuses on the Ru0026D, production and sales of lithium-ion power and high-power battery products. The products are widely used in new energy vehicles, electric two-wheelers, electric and Garden tools, smart home appliances, medical and industrial electronic equipment, aerospace, military and energy storage fields, etc.