Advanced Energy Materials
Volume 15, Issue 12
March 25, 2025
Reduction-Induced Oxygen Loss: the Hidden Surface Reconstruction Mechanism of Layered Oxide Cathodes in Lithium-Ion Batteries (Adv. Energy Mater. 12/2025)
Lithium-Ion Batteries
In article number 2404193, Jongsoon Kim, Jihyun Hong, and co-workers reveal a hidden surface degradation mechanism in layered oxide cathodes for lithium-ion batteries. Reduction-induced side reactions at the cathode-electrolyte interface, such as rocksalt phase formation, oxygen loss, and electrolyte decomposition, occurring at a relatively high potential of ∼3 V (vs. Li/Li+) during lithiation are identified. This challenges the conventional view, which has focused solely on oxidation-driven degradation
- Seungyun Jeon
- Gukhyun Lim
- Hoseok Lee
- Hyunyoung Park
- Min Kyung Cho
- Chan Kim
- YeEun Lee
- Jaehoon Kim
- Minhyung Kwon
- Jung-Keun Yoo
- Hyangsoo Jeong
- Jinwoo Kim
- Seung-Ho Yu
- Minah Lee
- Jongsoon Kim
- Jihyun Hong
https://advanced.onlinelibrary.wiley.com/toc/16146840/2025/15/12
Image created by minjeong Kim / Nanosphere
Advanced Energy Materials
Volume 15, Issue 12
March 25, 2025
Reduction-Induced Oxygen Loss: the Hidden Surface Reconstruction Mechanism of Layered Oxide Cathodes in Lithium-Ion Batteries (Adv. Energy Mater. 12/2025)
Lithium-Ion Batteries
In article number 2404193, Jongsoon Kim, Jihyun Hong, and co-workers reveal a hidden surface degradation mechanism in layered oxide cathodes for lithium-ion batteries. Reduction-induced side reactions at the cathode-electrolyte interface, such as rocksalt phase formation, oxygen loss, and electrolyte decomposition, occurring at a relatively high potential of ∼3 V (vs. Li/Li+) during lithiation are identified. This challenges the conventional view, which has focused solely on oxidation-driven degradation
https://advanced.onlinelibrary.wiley.com/toc/16146840/2025/15/12
Image created by minjeong Kim / Nanosphere