WUXI, China, Oct. 28, 2026 /PRNewswire/ -- Solid-state batteries are at a critical stage of transition from pilot production to large-scale manufacturing. To address key challenges in densification and solid-solid interface contact, Lead Intelligent has developed a horizontal warm isostatic pressing machine that delivers uniform three-dimensional pressure of up to 600 MPa across a wide temperature range from room temperature (RT) to 150°C. The machine achieves temperature control accuracy of ±2°C and pressure control accuracy of ±2%. Integrating automatic loading and unloading with precise, coordinated temperature and pressure control, the machine can increase cell density to over 95%, accelerating the industrialization of solid-state batteries.

As solid-state batteries move toward mass production, two major challenges remain: high impedance caused by insufficient solid-solid interface contact, and the limitations of conventional unidirectional pressing, including uneven density and pronounced edge effects. Based on Pascal's principle, isostatic pressing applies isotropic pressurization within a sealed chamber to achieve multidimensional material compaction and densification. It is a key processing route for addressing solid-solid interface contact challenges in solid-state batteries.

For the practical requirements of large-scale solid-state battery manufacturing, warm isostatic pressing offers an effective balance between densification performance, production efficiency, and manufacturing cost, making it a highly cost-effective option for mass production. As construction of solid-state battery capacity accelerates, warm isostatic pressing machines are becoming core incremental machines for battery manufacturers' next-generation solid-state production lines.

Core Technology: Precise Temperature-Pressure Coordination for High-Precision Process Control

Building on its R&D system, Lead Intelligent's horizontal warm isostatic pressing machine overcomes the "black box" limitations of traditional warm isostatic pressing process by enabling real-time monitoring of temperature and pressure inside the chamber. The machine upgrades from conventional unidirectional pressing to precise temperature-pressure coordination to promote closer contact between electrodes and electrolytes, making it well suited for solid-state battery mass production.

• Pressure system: It delivers uniform three-dimensional pressure of up to 600 MPa, with pressure control accuracy ≤±2%. Automatic pressure compensation and emergency depressurization functions keep pressure fluctuations within ±2% during a 30-minute pressure holding period, ensuring process stability and repeatability.
  
  
• Temperature system: The working temperatures can reach up to 150°C, and can be adjusted within a wide operating range from room temperature (RT) to 150°C, with temperature control accuracy of ±2°C. The initial heating time to 150°C takes no more than three hours, balancing process adaptability with mass production cycle-time requirements.
  
  
• Chamber specifications: The working chamber inner diameter is ≥400 mm, the effective length is ≥4,000 mm, and the volume is around 500 L. It accommodates batch processing of workpieces in various sizes and meets the capacity requirements of GWh-scale production lines.

Designed for Mass Production: Comprehensive Optimization for Large-Scale Manufacturing

For GWh-scale manufacturing, warm isostatic pressing machines must do more than meet core process specifications. They shall also coordinate with whole line cycle time, logistics systems, and upstream and downstream processes. To meet these requirements, Lead Intelligent has optimized machine structure, automatic operation, and safety systems in parallel.

Horizontal Design for Continuous Production Lines

The horizontal working chamber and automatic loading and unloading design significantly reduce factory height requirements while seamlessly integrating with automatic logistics systems to meet the needs of continuous production and material transfer between upstream and downstream processes, adapting to takt-based operation on large-scale production lines. Electrodes and solid electrolytes can be stacked and assembled before being loaded into the chamber for pressing and densification, simplifying process flow.

Full-process Automation to Minimize Manual Intervention

The machine enables unmanned operation throughout cell pretreatment and material box circulation. It integrates four key functions: cell hot air preheating, cold air drying and cooling, automatic fixture loading and unloading, and material box automatic circulation. The machine covers the entire workflow including loading, pretreatment, isostatic pressing and unloading, minimizing manual intervention and improving production efficiency and process consistency within each batch.

Multi-Layered Safety Controls for Reliable Operation

The machine incorporates a comprehensive multi-layered safety assurance system. At the foundational level, the machine is equipped with dual pressure and temperature monitoring for the chamber, together with pipeline pressure-relief ports to safeguard machine operation. In addition, an innovative triple deformation monitoring system provides real-time monitoring to enhance operational safety and maintain process precision.

As a world-leading provider of intelligent manufacturing solutions for the new energy industry, Lead Intelligent has completed the full-process layout for solid-state battery manufacturing, covering key stages including dry electrode processing, high-precision stacking, warm isostatic pressing, and formation and grading. The company has the capacity for batch delivery of GWh-level solid-state battery whole line solutions.

Looking ahead, Lead Intelligent will continue to strengthen its intelligent manufacturing equipment capabilities, accelerating the industrialization of solid-state batteries and other advanced battery technologies and contributing LEAD power to the global new energy industry.