Authors
Weizhi Peng, Ruilong Liu, Taotao Zeng, Wenting Li, Yongyan Zhou, Huiqian Liu, Xin Yang, Wei Xie, Hao He, Zhao Liang
Published in
Small methods. Pages e71128. Oct 15, 2026. Epub Oct 15, 2026.
Abstract
Lithium rich manganese layered oxides (LRMs) are promising cathode materials for high energy lithium-ion batteries owing to their high capacity and low cost, yet their practical applications are limited by lattice degradation and unstable cathode electrolyte interphase (CEI) evolution during cycling. Herein, a fluorine enriched multifunctional Li1.2Mn0.54Ni0.13Co0.13O2(LRM) is constructed through Na+, F-, and Al3+ synergistic regulation to achieve bulk surface stabilization. The introduction of Na+ broadens Li interlayer spacing and accelerates Li+ transport, while Al-O bonding stabilizes the local electronic structure, suppresses cation disorder and Jahn-Teller distortion, and alleviates lattice strain. Furthermore, the preformed fluorine enriched surface region reinforces the outer lattice through the formation of robust F-TM bonds, promoting the generation of a uniform and stable CEI layer, mitigating electrolyte decomposition and interfacial reactions. The optimized NFA-LRM delivers a high discharge capacity of 318.7 mAh g-1 at 0.1 C, with reversible capacities of 140.6 and 108.5 mAh g-1 at 5 C and 10 C, respectively, and retains 96.29% capacity after 250 cycles at 2 C. This work provides a bulk and surface synergistic strategy for high energy LRMs with stabilized oxygen chemistry and durable interfacial stability.
PMID:
42885294
Bibliographic data and abstract were imported from PubMed on 16 Oct 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 13
- Comments 0