In the new stage of the battery industry's development, new national standards have put forward new requirements for battery safety and stability. For example, no fire or explosion should occur within 2 hours after thermal runaway. These requirements have prompted battery manufacturers to reconsider their product technology roadmaps and seek safer and more stable battery solutions. Against this backdrop, solid-state and semi-solid-state batteries have attracted the attention of many battery manufacturers due to their unique advantages, and their basic form is mainly pouch cell battery. The demonstrated safety performance advantages provide new ideas for the development of the battery industry.
The safety advantages of new pouch cell battery bring new possibilities for the development of the battery industry. Some battery manufacturers have begun to re-plan their strategies, shifting R&D and production resources to this field. As a result, a competitive landscape surrounding new soft-packaged batteries is gradually emerging.
In this competition, there is a close connection between thermal pressing and formation equipment and the production of new pouch cell battery. Their market demand is on the rise, and the market scale is continuously expanding. From a production perspective, the production of new pouch cell battery relies heavily on thermal pressing and formation equipment.
Thermal pressing and formation equipment play a key role in the production of solid-state and semi-solid-state batteries, especially during the Battery Formation and packaging stages. Below is a detailed analysis of how thermal pressing and formation equipment impact these types of batteries.
Solid-State Batteries
High-Pressure Formation: The formation process of solid-state batteries requires high pressure, typically 60-80 tons. This is to optimize battery performance, address solid-solid interface contact issues, and promote the formation of ion conduction channels. High-pressure formation helps eliminate interfacial voids, increase effective contact area, reduce interfacial impedance, and thus force lithium ions to penetrate the solid-solid interface barrier, forming an ion conduction network.
Isostatic Pressing Technology: In solid-state battery production, isostatic pressing technology is widely used to improve electrode compaction density and battery energy density. By densifying electrode materials under high pressure, ion conductivity can be effectively enhanced, internal battery resistivity reduced, and cycle life extended.
Semi-Solid-State Batteries
Mixture of Electrolyte and Solid Electrolyte: Semi-solid-state batteries typically use solid-liquid hybrid electrolytes, with the electrolyte accounting for 5%-10% of the total content. Thermal pressing and formation equipment ensure the uniform distribution of this mixture during the pressing process and good contact with the electrodes.
Process Improvement: The application of thermal pressing and formation equipment enables the production process of semi-solid-state batteries to more effectively integrate traditional liquid battery processes while retaining some advantages of solid-state batteries, such as higher ion conductivity and improved interface contact.
In summary, thermal pressing and formation equipment play a vital role in enhancing the performance and efficiency of solid-state and semi-solid-state batteries. Through the application of high-pressure formation and isostatic pressing technologies, these devices not only improve the electrochemical performance of batteries but also promote the optimization and innovation of production processes. Driven by new national standards, thermal pressing and formation equipment will become a key force in the development of solid-state and semi-solid-state soft-packaged batteries, helping the battery industry move toward a safer and more efficient new stage.
Shengchuang Intelligent has been deeply engaged in the battery equipment field. Its Battery Formation Equipment, Battery Charge Discharge Tester, and Lithium Cell Grading Machine boast excellent performance. From the formation process to charge - discharge detection and precise grading, it uses professional equipment to build a solid defense line for battery quality and provides efficient and reliable full - process solutions for the industry.
