Under the global "dual carbon" consensus, the energy storage market will usher in explosive growth, which in turn will drive the rapid growth of the market demand for energy storage lithium batteries.
With the diversification of energy storage application scenarios, the energy storage market has put forward higher requirements for energy storage batteries in terms of product quality, service life, and cost reduction, forcing energy storage battery companies to improve product quality and carry out technological innovation.
The improvement of energy storage battery quality is inseparable from the cooperation and support of upstream raw materials and production equipment, which in turn puts forward new requirements for material and equipment companies.
Large-scale energy storage cells are gradually becoming a trend
At present, the screening and cascade utilization of power batteries retired from electric vehicles is considered to be a direction for the development of the energy storage market. However, uneven battery quality and complex battery models have become obstacles to large-scale cascade utilization of retired batteries.
At the same time, the batteries screened by power batteries can no longer fully meet the needs of the energy storage market, and high-quality energy storage batteries that meet energy storage application scenarios will become the mainstream of the market. With the continuous expansion of the energy storage market demand, the disorderly market competition and different product specifications in the early stage will gradually become standardized with the influence of the market scale effect.
Among them, the energy storage market's requirements for battery quality improvement and cost reduction are affecting the development direction of battery size. It has become a trend for battery companies to reduce costs by increasing the size of battery cells.
For example, the square cell has been upgraded from the previous mainstream products with multiples of 50 AH to 280AH. At present, the square battery of 280-310AH has gradually become the mainstream application in the large-scale energy storage market.
The bell-jar isobaric injection method has become the mainstream technology
It should be noted that with the increase in the size of the battery cells and the increase in the energy density of the battery, the performance requirements for production equipment are also increasing.
Domestic mainstream energy storage head battery companies are using higher-quality production equipment to produce energy storage batteries. High-quality equipment brings the consistency of newly produced high-quality batteries, thereby enhancing their product competitiveness.
Taking liquid injection as an example, the improvement of battery energy density and the large compression of internal space during design have brought more difficulty to liquid injection. Differential pressure 6PPM turntable and linear liquid injection machine are gradually eliminated from the market.
The 20PPM highly flexible bell jar iso-pressure liquid injection machine developed and produced by Junlee has been widely used in energy storage battery enterprises, which can meet the liquid injection needs of energy storage battery enterprises due to the large-scale cell size and production efficiency improvement.
Large-scale mass production and cost reduction require continuous upgrading of battery production lines. The large-flow, high-precision 50PPM bell jar and other pressure liquid injection machine developed by Bonates has become the first liquid injection method for energy storage head battery companies and new large-scale prismatic battery factories. mainstream technology.
At the same time, the intelligent series module independently developed by junlee integrates bypass board control, realizes constant current and constant voltage charging, and realizes active balance function. It has high integration, simple installation, easy maintenance, and calorific value MOS≦70 ℃ and other characteristics, for the realization of fully automated components: high-voltage series formation, constant current and constant voltage function without overshoot, quick replacement of various batteries, reduced investment in fixed assets and significant reduction in operating costs, providing a better battery for large-scale production. conditions of.