Amid the booming development of the new energy vehicle and energy storage markets, solid-state battery technology is emerging with an unstoppable momentum. As a key link in the battery manufacturing process, formation and grading testing equipment is also facing unprecedented opportunities for transformation. In particular, high-voltage formation equipment is gradually becoming a new focus of the industry and is expected to gradually replace traditional formation equipment.
Unique Challenges of Solid-State Batteries
Solid-state batteries differ significantly from traditional lithium-ion batteries in terms of structure and performance. The formation pressure required for traditional lithium-ion batteries is usually between 3 - 10 tons, while that for solid-state batteries is as high as 60 - 80 tons. Behind this huge pressure difference lies the unique solid-solid interface characteristics and ion conduction mechanism of solid-state batteries.
The core of a solid-state battery lies in its solid electrolyte, which has rigid contact with the electrodes. However, this rigid contact is not perfect, as there are a large number of voids at the microscopic level, leading to poor contact. These voids, like "gullies" that block the current, seriously affect the performance of the battery. To eliminate these interface voids, increase the effective contact area, and promote the physical and chemical bonding between the solid electrolyte and the electrodes, high-voltage pressing has become an indispensable means.
Key Role of High-Voltage Formation
The emergence of high-voltage formation equipment is precisely to address this critical challenge of solid-state batteries. By applying a pressure as high as 60 - 80 tons, high-voltage formation equipment can effectively eliminate the microscopic voids between the solid electrolyte and the electrodes, enabling a tight bond between the two. This close bonding not only improves physical contact but also provides more favorable conditions for chemical reactions.
What is more important is that the ionic conductivity of solid electrolytes is relatively low, which makes the transport of lithium ions across the solid-solid interface extremely difficult. High-voltage formation equipment forces lithium ions to penetrate the solid-solid interface barrier and forms an ion-conducting network at the interface, thereby significantly reducing interface impedance. This process is analogous to opening up a highway on a road full of obstacles, allowing lithium ions to transport smoothly and thus greatly enhancing the overall performance of the battery.
Future Trends of High-Voltage Formation Equipment
With the continuous development of solid-state battery technology and the growing market demand, high-voltage formation equipment boasts enormous market potential. It can not only meet the special needs of solid-state batteries but also bring higher production efficiency and better-quality battery products to battery manufacturers. In the future, high-voltage formation equipment is expected to occupy a dominant position in the field of solid-state battery manufacturing and become a key force driving the development of solid-state battery technology.
The mass production of solid-state batteries is an inevitable trend in the development of the new energy industry, and high-voltage formation equipment is the key to achieving this goal. Faced with the urgent demand for mass production of solid-state and semi-solid-state batteries, Shengchuang Intelligent is fully increasing its investment and research in the field of hot-press formation equipment, committed to providing more efficient and reliable solutions for the industry.
Amid the wave of the new energy industry, Shengchuang Intelligent is solidifying the R&D foundation of solid-state and semi-solid-state batteries through precise li ion test with its innovative technologies and high-quality products. It is leveraging advanced Battery Discharge Tester and Battery Life Tester to ensure the performance and reliability in the mass production process, helping push the mass production of solid-state and semi-solid-state batteries to new heights. Let us wait and see as it writes a new chapter in the field of solid-state batteries and injects new impetus into the future of new energy!
