Screen printed dense electrolyte films for sodium nickel chloride (Na-Ni-Cl) batteries

Screen printed dense electrolyte films for sodium nickel chloride…

Presenter: Robert Mitchell
Title: Screen printed dense electrolyte films for sodium nickel chloride (Na-Ni-Cl) 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.

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Robert Mitchell
Dr Robert Mitchell (Senior Research Scientist, Nanomaterials) has an MChem in Chemistry (Hull University) and PhD in chemistry (York University). Rob joined CPI in 2017 having previously worked as a Post-Doctoral Research Associate in Physics at York University. He has over 10 years R&D experience of synthesis and characterisation of nanomaterials and composites from academia and industrial collaborations, with particular focus on applications in energy and catalysis. Rob has a strong specialisation in analytical characterisation of materials, using spectroscopy, microscopy and surface characterisation techniques to understand how nanoscale features affect the macroscopic properties of materials. His experience in inks and coatings includes formulation development, optimisation of particle dispersions through mixing and grinding, and implementation of quick screening tests for high throughput experimentation.