Integrated Combinatorial Synthesis, Characterization, and Test Platform for Lithium-Ion Battery Cathode Materials

Abstract

An integrated combinatorial synthesis, characterization, and testing methodology and platform is proposed and developed for high-throughput exploration of Li-ion rechargeable battery cathode chemistries. This article describes the design of the platform's combinatorial synthesis part and its prototype performance. A key design element is a multi-gear powertrain with a unique milling-force adjustable pestle that ensures high compatibility with varying types of electrode materials. To demonstrate the prototype, LiNiO2 was prepared via a solid-state route under various operating conditions. We evaluated the effects of processing parameters, including milling force and mixing speed, on the synthesized electrode’s physical properties and electrochemical behavior. The synthesized LiNiO2 materials show excellent electrochemical performance comparable to manually synthesized LiNiO2.