Cold Isostatic Presses

Cold Isostatic Pressing (CIP) is a wet bag compaction method, subjecting compacted powders, enclosed by a flexible rubber mold, to extreme isostatic pressure to create optimum sintering/densification conditions. The most commonly used pressure media for CIP is water at ambient temperature.

CIP is commonly used to ensure a homogenous powder green bodies for optimum sintering processes for metal alloys, refractory metals, brittle magnetic and ceramics, etc.

CIP ensures homogeneous compaction of powder-based components and is especially beneficial for components having a high diameter to length ratio such as tube or rods shaped geometries for which uniaxial pressing will create a density gradient along the length of the part.

That depends on the cells design for an in-situ (or anode-free) lithium metal anode concept Quintus proposes a densification step of whole pouch cells. This position would fit the isostatic press after stacking and pouching.

The batch characteristic is an important topic for discussion. Our simulation shows that automation of the loading, unloading and densification won’t be a challenge for the implementation of isostatic pressing in the overall process. Additionally, the speed of stacking/winding is limiting the process speed before densification.

From the two vessel technologies, mono-block and wire-wound, the wire-wound technology systems can be scaled up to a cylinder volume of 2000 L.