ECS-HC Split Automatic Warm Isostatic Press (WIP, 100T, 150°C, Ф60x150mm), EHCSAWIP100TD60

A Split Automatic Warm Isostatic Press (WIP) is specialized laboratory equipment designed to apply omnidirectional (isostatic) hydrostatic pressure at elevated temperatures (typically 50°C - 200°C).It is widely used in advanced battery research—particularly for solid-state batteries (SSBs), ceramic electrolyte pellets (e.g., LLZO, NASICON), and pouch cell post-densification—where uniform multi-axial pressure is required to eliminate internal voids, improve grain boundary contact, and maximize ionic conductivity.

Split Design: The main hydraulic press unit and heating/vessel module are physically separated from the electronic control unit and hydraulic pump system via flexible high-pressure lines and electrical cables. This design allows the press assembly to be placed inside an inert-atmosphere glovebox (Ar/N₂) to process air- and moisture-sensitive materials (such as sulfide-based solid electrolytes like LPSCl), while keeping electronics safely outside. Automatic Operation: Uses a PLC touch-screen interface for programmable multi-stage pressure ramping, dwell time (holding time), temperature control, and automated decompression.

The key functions & applications are: (1) Solid-State Battery Cell Densification: Applied to assembled solid-state pouch cells or pellet cells to achieve intimate solid-solid contact between cathode particles, solid electrolyte, and metal anodes without causing directional shear stress. (2) Ceramic & Composite Powder Compaction: Isostatic pressure eliminates internal density gradients and stress concentration points common in uniaxial pellet pressing, producing ultra-dense green bodies prior to sintering. (3) Polymer / Electrolyte Membrane Lamination: Warm pressing above the glass transition temperature (Tg) of polymer matrix materials (e.g., PEO, PVDF-HFP) soft-binds layers together uniformly. 

References:

Y. G. Lee, et al., High-energy long-cycling all-solid-state lithium metal batteries enabled by silver–carbon composite anodes, Nat. Energy, 2020, 5, 299–308

M. Dixit, et al., Isostatic pressing of multilayer pouch cells and its implications for battery manufacturing, Device, 2024, 2, 100370.