The outcome of this innovation is a lithium-sulfur (Li-S) battery with high weight energy density. The demand for lithium-ion batteries (LIBs) is on the rise due to the widespread adoption of electric vehicles. However, ensuring a stable supply of battery materials continues to be a significant challenge.
The difference is that the solid electrolyte also acts as a separator between the cathode and anode. Additionally, because only lithium (Li) ions move within the electrolyte, all-solid-state batteries are less prone to side reactions and to deterioration.
Compact, lightweight, and high-power lithium-ion batteries (LIBs) are used in smartphones and electric vehicles (EVs) and have become indispensable to our society.
For sulfide lithium-sulfur all-solid-state batteries, the team developed a cathode that combines a Li 2 S-based solid solution and a sulfide solid electrolyte, which dramatically improved the cathode's capacity and life. "No capacity deterioration was observed even after 2000 charge-discharge cycles." (Fig. 5).
Li-S batteries have the potential to emerge as the next generation of energy storage solutions, garnering worldwide attention. Science Japan publishes news and stories about Japan's leading research institutions and their findings and achievements.
The 'ALCA-Specially Promoted Research for Innovative Next Generation Batteries (ALCA-SPRING)' project, aimed at the realization of next generation batteries that surpass lithium-ion batteries (LIBs), was launched in 2013.
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