2023-03-23 オークリッジ国立研究所(ORNL)
固体電池は、リチウムイオン電池よりも充電が速く、持続時間が長く、より安全に動作する可能性があるため、自動車メーカーにとって商業化の目標となっている。
研究者たちは、等方圧加圧法によって固体電解質の均一な薄膜を作成でき、イオンの移動をスムーズに行うことができることを発見し、商業的にスケールアップすることが比較的容易であると指摘した。
＜関連情報＞
- https://www.ornl.gov/news/research-team-supports-isostatic-pressing-solid-state-battery-manufacturing
- https://pubs.acs.org/doi/full/10.1021/acsenergylett.2c01936
固体電池の大量生産における等方圧加圧の役割 The Role of Isostatic Pressing in Large-Scale Production of Solid-State Batteries
Marm Dixit, Chad Beamer, Ruhul Amin, James Shipley, Richard Eklund, Nitin Muralidharan, Lisa Lindqvist, Anton Fritz, Rachid Essehli, Mahalingam Balasubramanian and Ilias Belharouak
ACS Energy Letters Published:October 18, 2022
DOI:https://doi.org/10.1021/acsenergylett.2c01936
Abstract
Scalable processing of solid-state battery (SSB) components and their integration is a key bottleneck toward the practical deployment of these systems. In the case of a complex system like a SSB, it becomes increasingly vital to envision, develop, and streamline production systems that can handle different materials, form factors, and chemistries as well as processing conditions. Herein, we highlight isostatic pressing (ISP) as a versatile processing platform for large-scale production of the currently most promising solid electrolyte materials. We briefly summarize the development of ISP techniques as well as the processing methods and windows accessible. Subsequently, we discuss recent reports on SSBs that leverage ISP techniques and their impact on the electrochemical performance of the systems. Finally, we also provide a techno-economic analysis for implementing ISP at scale along with some key perspectives, challenges, and future directions for large-scale production of SSB components and integration.
