Potassium-sodium-manganese-iron-based Prussian-blue electrode material, and preparation method and application thereof

A potassium-sodium-manganese-based, Prussian blue technology, applied in nanotechnology, battery electrodes, circuits, etc. for materials and surface science, can solve the problem of memory effect affecting the use of lead-acid batteries, safety problems, and environmental pollution. , to achieve the effect of easy industrialized continuous production, low cost, and increased specific surface area
CN106549155AInactive Publication Date: 2017-03-29HENAN NORMAL UNIV
3 Cites 26 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN NORMAL UNIV
Publication Date
2017-03-29
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a potassium-sodium-manganese-iron-based Prussian-blue electrode material, and a preparation method and application thereof, belonging to the technical field of synthesis of new-energy materials. According a technical scheme in the invention, the potassium-sodium-manganese-iron-based Prussian-blue electrode material has a general chemical formula of K<x>Na<y>MnFe(CN)<6>, wherein x and y are both more than 0 and less than 2; and the material has a cubic structure and a particle size of 10 to 200 nm. The invention also discloses the preparation method for the potassium-sodium-manganese-iron-based Prussian-blue electrode material and application of the material to the positive electrode of a sodium-ion battery. The potassium-sodium-manganese-iron-based Prussian-blue electrode material prepared in the invention has the cubic structure and a particle size of 10 to 200 nm; the nanometer three-dimensional structure of the material leads to increase in the specific surface area of the material and effective reduction in transfer distance of ions or electrons in the electrode material, so the rate performance and cycle stability of the electrode material are improved; and the electrode material has excellent electrochemical performance as a positive electrode material for the sodium-ion battery.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of synthesis of new energy materials, and in particular relates to a potassium-sodium-manganese-iron-based Prussian blue electrode material and a preparation method and application thereof. Background technique

[0002] With the increasing demand for energy in human society, energy and environmental issues have become prominent. Renewable energy such as wind energy and solar energy have also been greatly developed. The impact of weather and environment is very obvious. Renewable energy is discontinuous, unstable and uncontrollable features. At the same time, it also needs to be used like a power grid, which requires corresponding supporting equipment to store the obtained energy, thereby ensuring the stability and continuity of energy supply. With the operation and use of the smart grid, large-scale energy storage technology is also particularly critical. Secondary batteries can achieve high-efficiency con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More