Tunnel-type and p2-o3 mixed phase layered oxide composite cathode material

By employing seed-mediated heterogeneous epitaxial growth and phase-selective doping, the problems of lattice mismatch and irreversible phase transition in tunnel-type and layered sodium-ion battery cathode materials were solved, achieving low-impedance interfaces and high structural stability, thereby improving the electrochemical performance of sodium-ion batteries.

CN122417843APending Publication Date: 2026-07-17LUOYANG TONGRUN INFO TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202610686823.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-19
Publication Date
2026-07-17

Smart Images

  • Figure CN122417843A_ABST
    Figure CN122417843A_ABST
Patent Text Reader

Abstract

本发明涉及钠离子电池正极材料技术领域，提供一种隧道型与P2‑O3混合相层状氧化物复合正极材料，包含Ti掺杂的隧道相组分、Al掺杂的P2‑O3层状相组分及原位生成的尖晶石型界面过渡相。采用种子介导异相外延生长工艺，优先富集于隧道相，优先富集于层状相，在两相界面构建低阻抗离子传输通道，兼具高比容量与优异循环稳定性，适用于钠离子电池。
Need to check novelty before this filing date? Find Prior Art