Blackstone develops 3D-printed solid-state batteries

The company has been investing in the next generation of battery technology through its German subsidiary Blackstone Technology GmbH. This includes patented 3D-printing techniques and research into the mass production of batteries, which has been shown to offer greater energy density and a higher number of charging cycles.

Blackstone Technology’s 3D-printing process offers substantial advantages over conventional battery cell design that use liquid electrolytes. This includes:

• Significantly lower costs.
• A higher level of production flexibility when it comes to the format of the cell.
• 20% increase in energy density.

Moreover, by using this technology, the amount of materials that do not store energy could be reduced by up to 10% i.e. copper and aluminium. These advantages can be achieved independently of the electrode chemistry.

Having developed and tested this technology, Blackstone is ready to take the next step. To achieve the highest efficiency and greatest leveraged from this 3D-printing technology, the company plans to produce 3D-printed solid-state battery cells.

This could be a game changer for the development of solid-state batteries. An automated 3D-printing production process could save up to 70% of the traditional Capex used to produce solid-state batteries. Solid-state batteries are also safer as they do not use flammable liquid electrolytes that are also more harmful to the environment.

The first solid-state battery prototypes developed by Blackstone Technology GmbH have already been tested. The company is now developing the 3D-printing technology required to print these solid-state battery cells for mass production.

The production of these prototypes will demonstrate that Blackstone Technology can print many of the battery composites, casings and solid-state electrolytes needed for mass production.

Holger Gritzka, CEO of Blackstone Technology GmbH says: “Together with the developments we have made in 3D-printing battery technology to date, this development paves the way for the mass production of solid-state battery cells. In addition to major markets such as the automotive industry, marine applications and new 5G wireless networks would benefit from the advantages that 3D-printed solid-state cells can offer”.