ECS-HC Manual Cold Isostatic Press (CIP, 12-60T), EHCMCIP

A Manual Cold Isostatic Press (CIP) is an incredibly elegant and highly effective alternative to standard uniaxial pellet pressing inside a glovebox. Instead of pushing down on a powder with a rigid metal plunger, a CIP submerges your vacuum-sealed sample in a liquid-filled pressure chamber. Because liquid pressure is applied equally in all directions (isostatic), it eliminates the wall friction and internal stress gradients that typically cause high-aspect-ratio pellets to crack or delaminate.

A manual CIP consists of three primary components engineered to withstand extreme pressures—typically up to 300 to 500 MPa (roughly 43,500 to 72,500 psi): (1) Ultra-High Pressure Vessel: A thick-walled, high-strength stainless steel cylinder filled with a hydraulic fluid (usually a mixture of water and water-soluble oil to prevent rusting). (2) Manual Hydraulic Pump: A hand-operated lever pump that drives a small-diameter piston, allowing you to manually stroke up to the target pressure. (3) Pressure Release Valve: A fine-threaded needle valve used to slowly and safely decompress the vessel back to atmospheric pressure.

Operation Procedures

(1) Load the powder into the rubber module and sell it well.

(2) Put the rubber module into the CIP die.

(3) Seal the CIP die and tighten the gas release valve. 

(4) Rotate the pressing rod down and touch the CIP die surface. Close the safety door and tighten the hydraulic oil valve.

(5) Press the lever to increase the pressure to the target value. 

(6) After pressure retention for certain time, rotate the oil valve to release the pressure. 

(7) Open the safety door and loose the pressure screw on the CIP die.

(8) Screw the top pressing die and take it out from the CIP.

(9) Take the rubber module out from the CIP die.

(10) Take the processing sample out from the rubber module. 

       

References:

J. Zhang, et al., Investigation on mechanical and microstructural evolution of lithium-ion battery electrode during the calendering process, Powder Technology, 2022, 409, 117828

M. Abdollahifar, et al., Insights into Influencing Electrode Calendering on the Battery Performance, Adv Energy Mater., 2023, 13, 2300973.