Paving the Way for the Future of Energy Storage with Solid-State Batteries（英語版のみ）

2024年12月20日

東北大学材料科学高等研究所（WPI-AIMR）

Rapid advancements in solid-state battery technology are ushering in a new era of energy storage solutions, with the potential to revolutionize everything from electric vehicles to renewable energy systems. Evolutions in electrolyte engineering have played a key role in this progress, enhancing the development and performance of high-performance all-solid-state batteries (ASSBs).

A recent review paper dived into these developments and summarized the cutting-edge research on inorganic solid electrolytes (ISEs) used in ASSBs. Researchers explored how oxides, sulfides, hydroborates, antiperovskites and halides play a pivotal role in powering next-generation -batteries. These materials are not only used as electrolytes but also as catholytes and interface layers, which enhance battery performance and safety.

“We highlighted the recent breakthroughs in synthesizing these materials, honing our attention on the innovative techniques that enable the precise tuning of their properties to meet the demanding requirements of ASSBs,” says Eric Jianfeng Cheng, an associate professor at Tohoku University’s Advanced Institute for Materials Research (AIMR). “Precise tuning is crucial for developing batteries with higher energy densities, longer life cycles, and better safety profiles than conventional liquid-based batteries.”

Cheng and his colleagues also touched on the key electrochemical characteristics of ISEs, such as ionic conductivity, stability, and compatibility with electrodes Additionally, they explored current ASSB models, proposing emerging approaches that could pave the way for the future of energy storage.

Yet, the review cautioned that several challenges remain in the development of ASSBs. One significant hurdle is the limited compatibility between ISEs and electrodes, which can lead to harmful interfacial reactions. Overcoming these issues is critical for enhancing the efficiency and longevity of ASSBs. The review outlined these challenges in detail while also sharing insights into ongoing efforts to tackle them.

“Our comprehensive review underscores the importance of continued research and development in the field of solid-state batteries. By developing new materials, improving synthesis methods, and overcoming compatibility issues, current efforts are driving innovation toward practical ASSBs that could transform how we store and use energy,” adds Cheng.

The review was published in the Journal of Materials Chemistry A.

Schematic representation of the future perspectives on ASSBs based on inorganic solid electrolytes (ISEs): a) multi-phase ISEs in ASSBs, b) effect of layer thickness on ASSBs performance, c) encapsulated electrolytes, and d) lock and key concept. ©Eric Jianfeng Cheng et al.

論文情報

タイトル：	Inorganic solid electrolytes for all-solid-state lithium/sodium-ion batteries: recent developments and applications
著者：	Muhammad Muzakir, Karnan Manickavasakam, Eric Jianfeng Cheng, Fangling Yang, Ziyun Wang, Hao Li, Xinyu Zhang, Jiaqian Qin
掲載誌：	Journal of Materials Chemistry A
DOI：	10.1039/D4TA06117A