• 专利标题:   New layered oxide anode material of sodium ion battery useful for anode sheet composed of aluminum foil, polyvinylidene fluoride coated on aluminum foil, conductive carbon black and layered oxide anode material.
  • 专利号:   CN115312698-A
  • 发明人:   HUANG Z, MAO Z, ZHANG G
  • 专利权人:   SUZHOU DEJIA ENERGY TECHNOLOGY CO LTD
  • 国际专利分类:   H01M010/054, H01M004/131, H01M004/36, H01M004/485, H01M004/62
  • 专利详细信息:   CN115312698-A 08 Nov 2022 H01M-004/131 202304 Chinese
  • 申请详细信息:   CN115312698-A CN11139801 19 Sep 2022
  • 优先权号:   CN11139801

▎ 摘  要

NOVELTY - Layered oxide anode material of sodium ion battery of (I) is new. USE - (I) is useful for anode sheet and sodium ion batteries (all claimed). ADVANTAGE - (I) improves the high pressure performance by doping anion and cation, promotes anion oxygen to generate reversible redox reaction, improves the capacity of the whole battery, enhances the electronegativity, and improves the reversibility of valence change oxygen. DETAILED DESCRIPTION - Layered oxide anode material of sodium ion battery of formula (NaxLiaNibAlcMdO2-yFy) (I) is new. M = Mn, Fe, Cu, Co, V, Cr, Zr and Zn; x = 0.67-2, preferably 0.7-1.8; y = 0-0.5, preferably 0.05-0.4; a, b, c, and d = 0 and 1, preferably a and c = 0.05-0.2 and b and d = 0.2-0.8. Provided that: M is variable valence metal; x, a, b, c, d and y are the mole percentage of the corresponding element, each component satisfy the charge conservation and chemical measurement conservation, and the relation of a, b, c, and d satisfy a+b+c+d = 1. INDEPENDENT CLAIMS are also included for: Preparation of (I); Anode sheet of sodium ion battery, comprising current collector, agglomerant coated on current collector, conductive additive and the layered oxide anode material, where the ratio between agglomerant, conductive additive and layered oxide anode material is 1:1:8; and Sodium ion battery, comprising anode sheet.