杂原子掺杂磷酸铁锂碳包覆层的改性研究进展

doi:10.11896/cldb.24080184

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Abstract Lithium iron phosphate (LiFePO₄) has become the mainstream anode material in the current market due to its low production cost, environmental friendliness, thermal stability and high safety. In battery technology development, carbon capping technology is widely used to improve the conductivity and multiplicity performance of electrode materials. However, this technology still faces several challenges in practical applications, including uneven carbon coating, excessive carbon content, and instability in the structure of the carbon coating layer, which lead to reductions in energy density and cycling life. Doping heteroatoms into the lattice of carbon-based materials is demonstrated to be an effective solution based on the results from the experimental and theoretical studies. Heteroatoms enhance the electrical conductivity of the electrodes by adjusting the electronic structure of the carbon layer, while increasing the graphitization degree of the carbon material improves its chemical stability. Additionally, the introduction of heteroatoms can suppress the aggregation and growth of LiFePO₄ particles, thereby improving the structural stability of the carbon coating. This approach not only enhances electrochemical performance but also effectively reduces the volume occupied by the carbon layer in the electrode, thus meeting the requirements for energy density. This paper reviews the recent advancements in the research on heteroatom-doped carbon coatings for LiFePO₄, summarizes in detail the effect of single heteroatom-, double heteroatom- and triple heteroatom-doped with carbon coating on the modification of LiFePO₄, the existing challenges are identified, and future research directions are proposed.

Key words： lithium iron phosphate cathode material carbon coating heteroatom-doped

Published: 10 October 2025 Online: 2025-09-24

CLC number:

TQ152

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	Articles by authors
	PENG Chaoyin
	YAO Yaochun
	LI Yin
	CHEN Qiulin
	ZHANG Keyu
	HU Junxian
	ZHANG Shaoze

Cite this article:

PENG Chaoyin,YAO Yaochun,LI Yin, et al. Research Progress in the Modification of Heteroatom-doped Carbon Coatings on Lithium Iron Phosphate Cathode[J]. Materials Reports, 2025, 39(19): 24080184-8.

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https://www.mater-rep.com/EN/10.11896/cldb.24080184 OR https://www.mater-rep.com/EN/Y2025/V39/I19/24080184

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