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Changing the World through Creative Research

Battery Materials

Future vehicles and mobile devices will require more compact and safer power sources. Battery technology is expected to evolve from the current lithium-ion battery (LIB) to all solid-state batteries and lithium metal batteries, pursuing innovations in energy density, safety, life, and cost. SAIT is developing novel materials to enable those technologies employing state-of-art computational methods and high speed synthesis techniques.

Next Generation Battery Materials

Power Solutions Enabling e-Mobility and Future Mobile Devices

Overview ① Future Mobile Power and Microbatteries
The mobile devices of tomorrow will be smaller, more functional, and more wearable to enhance people’s lives with new experiences. In particular, wearable devices will have many features, such as health monitoring, artificial intelligence (AI), and augmented reality (AR) and will come in a variety form factors, e.g., watches, glasses, and earphones. To supply reliable power in compact wearable devices, batteries should be smaller, safer, and of higher capacity. Also, the markets for small electronic devices requiring microbatteries are growing, such as IoT devices, medical devices, RFID, and electronic cosmetics.

② EV Battery
The importance of electric vehicles (EVs) for the efficient use of energy is increasing, along with worldwide efforts to reduce greenhouse gas emissions and industrialize green energy. The battery is the key technology for the success of EV business. Innovative battery technologies will increase the driving range and reduce the cost of electric vehicles. Battery technology is expected to evolve from the current lithium-ion battery (LIB) to next-generation high capacity LIBs, all solid-state batteries, and lithium metal-based batteries, pursuing improvements in energy density, safety, and life, as well as reduction in cost.

Technology Trend Innovation in materials is the key to boosting the electromobility market. The key R&D trends are increasing energy density with new materials and developing multi-functional technologies. In recent years, it has become increasingly important to make batteries safer for use in EVs and Mobile to mitigate the risk of fire.

SAIT Technology ① Future Mobile Power and Microbatteries
To support the development of wearable devices that incorporate health monitoring, AI, or AR, SAIT is developing high-power and safe battery technologies utilizing 3-dimensional structures with high-density electrodes and solid electrolytes.

② EV Battery
SAIT is actively conducting research on post Li-ion battery systems, such as all-solid-state battery and Li-air battery technologies that will enable the driving range of EVs to be equivalent to that of internal combustion engine (ICE) vehicles. SAIT is researching new materials and cell designs for solid-state batteries. Novel sulfide- and oxide-based lithium ion conductors, and the interfaces adjacent to them, are major exploration areas. SAIT is also studying Li-air batteries, which have the highest theoretical energy density among all known battery systems. This research focuses on chemically stable cathode materials and robust oxygen blocking solid electrolytes for long-term reliability.