APPLICATIONS OF TECHNOLOGY:
- Solid state battery electrodes
- For use in vehicles or consumer electronics
- Electrochemical cells with ceramic electrodes
- Solid oxide fuel cells
- The methods are more scalable and lower in cost compared to other approaches
- Facilitates further impregnation with active battery materials
- Enables the preparation of an integrated electrolyte without merging a separate dense layer
A structure suitable as an electrode for an electrochemical device may be prepared by tapecasting. Tapecasting is a low-cost, scalable process for preparing electrode layers, but tapecasting inherently produces a structure that is parallel to the layer surface.
This new process allows the creation of a structure suitable as an electrode through tapecasting. The structure comprises a primarily ionic-conducting material (an electrolyte) and an electronically-conducting material (a battery active material or fuel cell catalyst). It involves casting of the scaffold as well as secondary materials; the alternating layers of these materials are joined by laminating, or by successively tapecasting alternating materials. Other materials may also be added to enhance contact between the two materials, prevent reaction between them, or impart additional conductivity or catalytic properties. The structure is advantageous because channels are easily filled with the secondary material. Porous layers may also be incorporated.
DEVELOPMENT STAGE: Proven principle
Enabling Porous Ceramic (LLZO) Electrodes for Solid State Batteries through Tapecasting 2020-061, 2020-117
Fabrication of Architecturally Controlled Electrolyte Frameworks For Solid-State Batteries 2019-177
STATUS: Patent pending
OPPORTUNITIES: Available for licensing or collaborative research.