Jolt stands out as the go-to electrode supplier for AEM electrolysis. Anion Exchange Membrane electrolysers have different requirements to traditional Alkaline Water Electrolysers. Whilst using similar catalysts the structure of the electrode is often much more complex. This is due to the higher targeted current densities and the resultant higher amounts of gas generation.
Nickel Foam is a good choice for AEM due to its high inherent surface area and porosity, it is also relatively low cost and quite abundantly available. Downsides to using Nickel Foam are the potential to form sharp points (at bubble junctions), especially as the electrode starts to degrade, which can cause pinpricks in the membrane and the possibility of over compression resulting in the structure collapsing.
Nickel Felts are potentially a better option for AEM due the flat surface facing the membrane, the high porosity and thin nature of the material. The downside here is that Nickel Felts are, today, a lot more expensive.
Complex structures like Nickel Foams or Nickel Felts can be problematic to coat with catalysts using traditional coating techniques. Jolt’s Sparkfuze™ coating technique is particularly good at coating these materials. Jolt has already signed a long term supply agreement with Ansaldo Green Tech and has recieved multiple positive test results from various stack manufacturers.
Jolt’s anode has been selected for a number of projects and is applicable to all systems. Jolt’s cathode is primarily designed for those systems using wet cathode set up. Produced using our patented Sparkfuze™ process, these electrodes offer high efficiency and durability. The process also means faster production at lower cost.
Available in bulk supply from our pilot line in Barcelona, Spain we are able to support even the largest of producers. Electrodes can be made in any shape and size required and at the volumes needed for large scale production. We are now filling this capacity and are deploying production to strategic areas such as Saudi Arabia, India & Chile. These additional production sites will allow us to not only supply electrodes to OEM electrolyser producers but to support large scale green hydrogen & green ammonia projects where they are being planned.
