Improving interfacial stability and electrochemical performance of LiNi0.5Mn1.5O4 cathode material via Li2SiF6 coating

Journal of Energy Storage 2026 Open access

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Authors: Zhiqi Ren, Yuhang Wang, Fei Xie, Yan Liu, Jiaxiu Sun, Yiming Yin, Danfeng Zhang, Jianwen Yang, Bin Huang, yanwei Li, Shunhua Xiao
DOI: 10.1016/j.est.2026.120611
Cited by: 1
References: 27

Abstract

A novel surface modification strategy using lithium hexafluorosilicate (Li 2 SiF 6 , LSF) is developed to enhance the interfacial stability and electrochemical performance of LiNi 0.5 Mn 1.5 O 4 (LNMO) cathode material. LNMO@1wt%LSF delivers an initial Coulombic efficiency of 81.58% and a high-rate discharge capacity of 84.85 mAh g −1 at 15C. It maintains 117.82 mAh g −1 after 600 cycles at 25 °C and 2C, and retains 75.34% of its capacity after 200 cycles at 55 °C. The coating reduces interfacial and charge-transfer resistance and enhances voltage stability. This work demonstrates that the LSF coating is a very promising strategy for improving the electrochemical performance of LNMO cathode materials.

Fields of Study & Subjects

Advancements in Battery Materials Supercapacitor Materials and Fabrication Fiber-reinforced polymer composites

Publication details

Journal / source
Journal of Energy Storage
Publisher
Elsevier BV
Volume
152
Pages
120611–120611
Publication date
23 January 2026
Language
EN