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Rational design of a tunnel-monoclinic intergrowth cathode based on surface energy chemistry modulation for sodium-ion batteries

Year: 2026
Type: article
Abstract: growth strategy based on surface energy regulation mechanisms. The growth mechanism of the NMO-FMHCF intergrowth material was investigated by tracking its real-time morphological evolution at varying phase ratios and aging times. Furthermore, through electrochemical testing combined with theoretical calculations, we elucidate the synergistic enhancement effects of the NMO-FMHCF intergrowth structure in terms of structural stability, electrochemical performance, and sodium replenishment during the first cycle. The optimized intergrowth cathode material demonstrated significantly improved first-cycle charge-discharge efficiency, with a capacity retention rate of 70.46% after 950 cycles at 5C, indicating a promising new approach for designing high-performance sodium-ion battery cathode materials.
DOI: 10.1039/d6sc04912e
Authors: Han-Xiao Liu, Di-Xing Ni, Ling-Yi Kong, Jia-Yang Li, Zepeng Lv, Jianxun Song, Zhen-Guo Wu, Xiao-Dong Guo, Yao Xiao
Language: English
Open Access status: diamond
Funders: National Natural Science Foundation of China, Central South University, Zhengzhou University, State Key Laboratory of Powder Metallurgy, Wuhan Textile University, National Key Research and Development Program of China
Awards: G1259711968, G1671901715, G2271006258, G3462957179, G5044142516, G6071749647, G691830983, G7373473051, G7426643871
OpenAlex ID: W7204941767
FWCI:
Cites: 52
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Related to: 10