Electrochemo-mechanical effects as a critical design factor for all-solid-state batteries

Yong Bae Song, Hiram Kwak, Woosuk Cho, Kyung Su Kim, Yoon Seok Jung, Kern Ho Park

Research output: Contribution to journalReview articlepeer-review

15 Citations (Scopus)


All-solid-state batteries (ASSBs) using inorganic solid electrolytes (SEs) are in the spotlight for next-generation energy storage devices because of their potential for outstanding safety and high energy density. Recent progress in this field has been primarily based on advances in materials, such as the discovery of SEs with high ionic conductivities and the improvement of interfacial stability in electrodes. However, the use of inelastic SEs causes severe electrochemo-mechanical failures, such as cathode active material (CAM) disintegration, CAM/SE contact loss, and stress build-up during cycling, deteriorating the Li+ and e transport pathways. Although these concerns have been addressed previously, they have not been contextualized systematically in terms of the mechanical interactions among the components and their impacts on electrochemical performance. Here, we categorize the electrochemo-mechanical effect in ASSBs and its ramifications in terms of stress sources, active materials, composite electrodes, and cell stacks.

Original languageEnglish
Article number100977
JournalCurrent Opinion in Solid State and Materials Science
Issue number1
Publication statusPublished - 2022 Feb

Bibliographical note

Funding Information:
This work was supported by the Technology Development Program to Solve Climate Changes of the National (NRF) funded by the Ministry of Science & ICT (NRF-2017M1A2A2044501) and the Creative Materials Discovery Program of the NRF funded by the Ministry of Science & ICT (NRF-2018M3D1A1058727), and by the Technology Innovation Program (20007045 and 20012216) funded By the Ministry of Trade, Industry & Energy (MOTIE, Korea). This work was also funded by the Yonsei University Research Fund of 2021 (2021-22-0326).

Publisher Copyright:
© 2021 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Materials Science(all)


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