PECVD technology

Anode production:


LeydenJar Technologies’ invention is based on a cross-sector innovation, applying the production technology of thin film solar panels (and semiconductors) to anode production in a one step approach. We have made a number of alterations to a plasma enhanced chemical vapor depositioning machine (“PECVD”), through which we can control the morphology and porosity of nanostructured silicon pillars, directly on the copper foil that is used as the anode current collector in the battery industry.

This approach differs from the traditional coating process of anodes, which requires a mixture of active material, binder, and other components in a capital intense process of slurry making, coating, baking, calendering and slitting. LeydenJar Technologies’ competitors are primarily focused on adding silicon nanoparticles to the slurry, creating more complex chemistries and incremental capacity improvements, applied to the same coating process (“drop-in technology”).

The PECVD machine is a roll to roll deposition process, enabling a continuous manufacturing process, fitting the cell assembly process step in any Li-ion battery cell plant.

Road map:

We are working hard to make our pure silicon technology available to battery cell makers, enabling OEM’s to incorporate high energy dense batteries in their products as soon as possible



At this stage we are updating our manufacturing readiness study, consisting of a cost analysis of our technology versus the existing coating processes, identifying and overcoming adoption hurdles, setting engineering targets (including speed of depositioning) for our base plant, and to achieve commercial level production. We are working together with PECVD equipment suppliers and other corporates in the Li-ion battery value chain to assure widespread acceptance of our pure silicon anode technology.


The base plant will serve a threefold function: a) to produce pure silicon anode rolls that can be used by battery cell manufacturers  and OEM’s for testing; b) to showcase for semi-commercial level production, c) to serve as the R&D hub for various existing battery cell chemistries, future battery cell chemistries such as solid state and thin film batteries, to solve integration issues with other processes, and for tailor made design of anode material for specific applications. The preparations for LeydenJar Technologies’ base plant will take place in 2017, with the expected commissioning of the plant in 2018.