Automated Electrochemical Experiments Team

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The Electrochemical Automated Experiment Team actively utilizes robotic experimental techniques to achieve high-throughput experimentation across various processes, enabling the rapid acquisition of large-scale experimental data. By applying data science methodologies to the collected experimental datasets, the team conducts research with the primary goal of accelerating the discovery of innovative electrochemical materials.

A high-throughput evaluation system for electrolyte additives was established using a microplate-type electrochemical cell. By applying machine learning methods such as Bayesian optimization, we successfully discovered synergistic additive combinations that improve the cycle life of lithium-air batteries.

A sealed parallel electrochemical cell suitable for lithium-ion and sodium-ion batteries was developed. Its applicability for performance evaluation of lithium-ion batteries under high-temperature conditions was successfully demonstrated.

An automated experimental robot system was built within a dry room, equipped with mechanisms for the precise stacking of anode, separator, and cathode layers, as well as electrolyte injections. Applying this system to lithium-air batteries proved effective for acquiring highly reproducible charge-discharge data and for developing electrolytes focused on the synergistic effects of additives.

By applying advanced analytical techniques, the degradation mechanisms of high-energy-density lithium-air batteries were investigated in detail. It was revealed that water and carbon dioxide generated at the cathode cross over to the anode and irreversibly react with the lithium metal electrode, which constitutes a major bottleneck for battery lifespan. Introducing a lightweight protective film successfully enhanced the cycle life of lithium-air batteries.

• Solid-State Battery Group
• Battery Interface Control Group
• Battery Materials Analysis Group
• Photovoltaic Materials Group
• Rechargeable Battery Materials Group
• Solid State Battery Ionics Group
• Environment-Controlled Microscopy Group
• Automated Electrochemical Experiments Team
• Functional Electrolyte Synthesis Team