Polymer sealed planar Na-NiCl2 batteries being operated at below 200°C
The presentation introduces an effort to develop a lower temperature operating sodium nickel chloride battery (Na-NiCl2) for stationary energy storage applications. Since this battery runs at below 200oC, it can be fabricated at an ultra low manufacturing cost by substituting expensive sealing technologies with simple and inexpensive polymer sealing, and by introducing a planar cell design with a greatly reduced number of cell components. Enhanced degradation resistance of cathode materials is another important advantage of this technology. Challenges and progress in materializing the cells, including cell design, highly toughened solid electrolyte, and polymer sealing method, will be discussed. This novel battery has the potential to greatly reduce the cell cost enabling broader ESS market penetration.
Dr. Keeyoung Jung is a Principal Researcher at Research Institute of Industrial Science and Technology (RIST). His expertise lies on designing high temperature materials and devices for power generation and energy storage applications using an experimental approach combined with computer aided thermodynamic, kinetic, and mechanical analyses. He is currently working on developing contemporary and advanced batteries, including high temperature sodium beta-alumina, lithium ion, and solid state batteries.