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对于高性能Na₃V₂(PO₄)₃@C阴极材料在离子和混合/离子电池中的高性兴奋剂

Beibei Ma¹, Yawen Liang¹, Xiaokai Ma¹

¹Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, Henan 450003, PR China.

Journal of colloid and interface science

|May 14, 2025

概括

开发了用于储能的先进阴极,使用高的兴奋剂和对Na3V2的碳涂层. 这些材料在离子和混合/离子电池中表现出色.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

对于高效的能量存储需求的不断增长推动了超越离子电池的研究.
先进的正极材料对于下一代电池至关重要,例如离子电池 (SIB) 和混合/离子电池 (HLSIB).

研究的目的:

开发一种新型的高度化Na3V2(PO4)3@C (HENVP@C) 复合性阴极材料.
在SIB和HLSIB中评估HENVP@C的电化学性能.

主要方法:

合成了一种复合材料,用五个离子 (Ti4+,Mn2+,Fe2+,Zr4+,Mo6+) 合Na3V2(PO4)3并涂上碳涂层.
对半电池进行了电化学性能测试,以评估容量,周期寿命和稳定性.

主要成果:

HENVP@C展示了显著的Li+/Na+存储能力,具有高容量,优良的循环寿命和稳定性.
高性兴奋剂稳定了纳西康的结构,增强了离子导电性,改善了离子扩散动力学.
表面的碳涂层提高了材料的电子导电性.

结论:

高性兴奋剂和碳涂层是提高SIB和HLSIB阴极性能的有效策略.
开发的HENVP@C材料显示了先进的储能应用的巨大潜力.
这项工作为高性能阴极材料提供了新的设计原则.

关键词:

高电化学性能高电化学性能高的兴奋剂使用高的兴奋剂.混合/离子电池是一种/离子电池.纳3) V2) PO4)) 3) @C 阴极离子电池是一种离子电池.

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