Scholarlink

<p>Na<sub>4</sub>Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>(P<sub>2</sub>O<sub>7</sub>) (NFPP), as a polyanionic cathode material, has garnered significant attention due to its high theoretical capacity, low volume variation, high operating voltage, and environmental friendliness. Simultaneously, challenges such as the low intrinsic electronic conductivity, impurity phase formation, and sluggish sodium-ion diffusion kinetics inherent to NFPP have driven extensive research into material modification and structural design. While these research efforts have attracted considerable interest over the past decade, a timely and systematic summary and analysis of the progress remain lacking. This review comprehensively addresses the challenges confronting NFPP materials and the corresponding advancements in modification strategies. Firstly, the classical approach of elemental doping, encompassing both anion and cation doping, is introduced. Subsequently, significant progress in carbon coating and structural design strategies is detailed. Finally, based on the practical application requirements for NFPP materials, the persisting challenges are thoroughly analyzed. Feasible future research directions are outlined to provide researchers with relevant insights and references.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Advancements and challenges in modification strategies for Na4Fe3(PO4)2(P2O7) Cathode: toward high-performance sodium-ion batteries

  • 期刊论文

  • 发表日期：

    2026年3月9日

查看全文
  • Pengcheng Liu,
  • Penghao Wang,
  • Juan Wu,
  • Dan Xue,
  • Boyan Ji,
  • Like Zhang,
  • Ruizhi Zhang,
  • Han Chen,
  • Jing Li,
  • Li Xiao

摘要

Na4Fe3(PO4)2(P2O7) (NFPP), as a polyanionic cathode material, has garnered significant attention due to its high theoretical capacity, low volume variation, high operating voltage, and environmental friendliness. Simultaneously, challenges such as the low intrinsic electronic conductivity, impurity phase formation, and sluggish sodium-ion diffusion kinetics inherent to NFPP have driven extensive research into material modification and structural design. While these research efforts have attracted considerable interest over the past decade, a timely and systematic summary and analysis of the progress remain lacking. This review comprehensively addresses the challenges confronting NFPP materials and the corresponding advancements in modification strategies. Firstly, the classical approach of elemental doping, encompassing both anion and cation doping, is introduced. Subsequently, significant progress in carbon coating and structural design strategies is detailed. Finally, based on the practical application requirements for NFPP materials, the persisting challenges are thoroughly analyzed. Feasible future research directions are outlined to provide researchers with relevant insights and references.