Presenter: Robert Mitchell
Title: Optimisation of printed film densification for sodium nickel chloride (Na-Ni-CI) batteries
Affiliation: Center for Process Innovation, CPI, United Kingdom
CPI are supporting LiNa Energy in development of Sodium nickel chloride (Na-Ni-CI) batteries as promising low-cost and high performance energy storage materials with potential to replace existing lithium-ion (Li-ion) batteries. CPI have used expertise and high-throughput screening facilities as well as a variety of different milling and mixing capability (e.g 3 roll mill, planetary ball mill) to develop and optimise ink formulations suitable for printing and also characterise their properties (eg stability and rheology). Screen printing methodology has been employed to support scalable production of pouch cells, with optimisation of the printed film density through ink formulation and process conditions. Structure-property relationships of the printed coatings (thickness, nano/micro-structure, etc.) have been analysed by a number of characterisation techniques including Scanning Electron Microscopy and Electrochemical Impedance Spectroscopy.