Sakuu Corporation, San Jose, California, USA, has received approval of three new patents: a hybrid solid-state cell with a sealed anode structure, an Additive Manufacturing system with the ability to create an active device such as a micro-reactor or solid-state battery and an electrophotographic multi-material AM machine, capable of using materials previously unsuited to electrophotography (namely ceramic, metal and polymer).
Sakuu has been working on creating the optimal solid-state battery via AM, for use in e-mobility and other applications. This latest patent is for a monolithic ceramic electrochemical cell housing an anode and cathode receptive space, alongside a separator between the two – allowing for higher charging rates without the risk to safety posed by lithium-ion batteries. This follows on from two previous battery patents – integrated cell stack battery and monolithic solid-state battery – which were granted back in 2020. Collectively, these structures enable increased energy density for solid-state batteries, without compromising stability and lifespan.
The second patent for a three-dimensional AM system, allows for patterned single layers to be easily assembled into a three-dimensional active device onto an assembly plate. AM has the potential to produce three-dimensional devices with more efficient use of materials and reduced weight on the finished device. This patent includes a carrier substrate which allows for single layers to be built separately and then dispensed on a stack on the assembly plate.
The final patent, an electrophotographic three-dimensional AM system, can be used to create a 3D part derived from a composite toner material. Electrophotography is known for being capable of rapidly producing large areas of thin layers with very high precision – ideal for applications including solid state batteries and other active devices.