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CN-122025580-A - Composite material for water-based ammonium ion/proton hybrid battery and preparation method and application thereof

CN122025580ACN 122025580 ACN122025580 ACN 122025580ACN-122025580-A

Abstract

The invention relates to the technical field of battery materials, and particularly discloses a composite material for a water-based ammonium ion/proton hybrid battery, and a preparation method and application thereof. The invention prepares the conductive polymer coated manganese dioxide composite material by adopting an organic-inorganic interface reaction, the preparation process is simple and easy to operate, the cost of the required raw materials is low and the required raw materials are easy to obtain, the synthesized material is a nanoscale material, and the composite material has the advantages of good dispersibility, high specific surface area, good conductivity, stable structure and the like.

Inventors

  • LIU YANYAN

Assignees

  • 河北师范大学

Dates

Publication Date
20260512
Application Date
20260127

Claims (10)

  1. 1. The composite material for the aqueous ammonium ion/proton mixed battery is characterized in that the composite material for the aqueous ammonium ion/proton mixed battery is a conductive polymer coated manganese dioxide composite material.
  2. 2. The preparation method of the composite material for the water-based ammonium ion/proton mixed battery is characterized by comprising the following steps of: S1, dissolving a manganese source in deionized water to obtain a solution A; s2, dispersing the organic micromolecular monomer into an organic solvent to obtain a solution B; S3, mixing the solution A and the solution B, standing at 3-6 ℃, separating solid from liquid, and washing a solid filter material to obtain a precursor; S4, drying the precursor at-50 to-60 ℃ to obtain the composite material for the water-based ammonium ion/proton mixed battery.
  3. 3. The method for preparing a composite material for an aqueous ammonium ion/proton mixed battery according to claim 2, wherein in S1, the mass-volume ratio of the manganese source to deionized water is 0.1g:100ml to 0.15g:100ml; In S2, the volume ratio of the small organic molecule monomer to the organic solvent is 1:100-5:100.
  4. 4. The method for producing a composite material for an aqueous ammonium ion/proton hybrid battery according to claim 3, wherein in S3, the volume ratio of the solution a to the solution B is 1:1 to 1:1.1.
  5. 5. The method for producing a composite material for an aqueous ammonium ion/proton hybrid battery according to claim 2, wherein in S1, the manganese source is potassium permanganate.
  6. 6. The method for producing a composite material for an aqueous ammonium ion/proton hybrid battery according to claim 2, wherein in S2, the small organic molecule monomer is any one of an aniline monomer, a pyrrole monomer, and a thiophene monomer; in S2, the organic solvent is carbon tetrachloride.
  7. 7. The method for producing a composite material for an aqueous ammonium ion/proton hybrid battery according to claim 2, wherein in S3, the time for the standing treatment is 22 to 50 hours.
  8. 8. The method for producing a composite material for an aqueous ammonium ion/proton hybrid battery according to claim 2, wherein in S4, the heat-retaining time of the drying treatment is 45 to 50 hours.
  9. 9. An aqueous ammonium ion/proton mixed electrode comprising the composite material for an aqueous ammonium ion/proton mixed battery according to claim 1.
  10. 10. Use of the aqueous ammonium ion/proton mixed electrode according to claim 9 for the preparation of an aqueous ammonium ion/proton mixed ion battery.

Description

Composite material for water-based ammonium ion/proton hybrid battery and preparation method and application thereof Technical Field The invention relates to the technical field of composite materials, and particularly discloses a composite material for a water-based ammonium ion/proton hybrid battery, a preparation method and application thereof. Background Development of rechargeable batteries is an important research direction for achieving clean energy and sustainable development. In recent years, in pursuit of high safety, high stability and ecological friendly energy storage devices, a large number of researchers transfer their eyes to aqueous ion batteries based on aqueous electrolyte, and because of their characteristics of environmental friendliness, high safety, high transmission efficiency and the like, the battery has a wide application prospect in the field of large-scale energy storage. However, high interest in aqueous metal ion (e.g., li +、Zn2+、Al3+, etc.) batteries has also led to some degree of neglect in the study of aqueous non-metal ion (e.g., H +、H3O+、NH4+) batteries. Therefore, recent researchers gradually transfer the view to the field of water-based non-metal ion batteries, wherein the water-based ammonium ion batteries and the water-based proton batteries are widely focused on the advantages of high intrinsic safety, low cost, sustainability and the like, and are characterized in that (1) the water-based ammonium ion batteries and the water-based proton batteries are low in cost, environment-friendly and sustainable, and different from metal ions, H +、H3O+ and NH 4+ are only composed of N element and H element, are sustainable resources widely distributed in the nature, and because H +、H3O+、NH4+ -based electrolyte is generally easy to dissolve in water and pyrolyze, the recycling of the batteries is very simple, convenient, efficient and low in cost, and the problem that the recycling of the traditional metal ion batteries is difficult is greatly solved. (2) The H +、H3O+、NH4+ has small hydration radius and light molar mass (< 19 g.mol -1) and is lower than most metal carriers, so that the device has rapid and efficient diffusion rate and is beneficial to improving the power density of the device. Therefore, developing an inexpensive, safe, and environment-friendly aqueous nonmetallic ion battery, particularly an aqueous nonmetallic ion hybrid battery, has become an effective strategy for realizing large-scale energy storage. Disclosure of Invention In view of the above, the invention provides a composite material for a water-based ammonium ion/proton hybrid battery, and a preparation method and application thereof. In order to achieve the above purpose, the present invention provides the following technical solutions: the invention provides a composite material for an aqueous ammonium ion/proton mixed battery, which is a conductive polymer coated manganese dioxide composite material. Compared with the prior art, the invention prepares the composite material for the aqueous ammonium ion/proton mixed battery, which is prepared by adopting the organic-inorganic interface reaction, wherein the manganese dioxide with the layered structure has an open two-dimensional ion channel which can accommodate ion diffusion and is beneficial to the intercalation/deintercalation of nonmetallic carriers, and the surface of the manganese dioxide material with the layered structure is coated with the polymer with high conductivity, so that the conductivity of the composite material can be improved, the dissolution of the manganese dioxide in electrolyte can be slowed down, the nanocrystallization of the material can be maintained, the specific surface area of the material can be improved, more reactive active sites can be provided, the ion transmission can be facilitated, and the higher storage capacity can be obtained. When the conductive polymer coated manganese dioxide composite material is applied to the preparation of the water system ammonium ion/proton mixed ion battery, the obtained battery material has excellent multiplying power performance and stable cycle life, has a high application prospect, and provides a new design idea for the existing water system non-metal ion battery. The invention provides a preparation method of a composite material for an aqueous ammonium ion/proton mixed battery, which comprises the following steps: S1, dissolving a manganese source in deionized water to obtain a solution A; s2, dispersing the organic micromolecular monomer into an organic solvent to obtain a solution B; S3, mixing the solution A and the solution B, standing at 3-6 ℃, separating solid from liquid, and washing a solid filter material to obtain a precursor; S4, drying the precursor at-50 to-60 ℃ to obtain the composite material for the water-based ammonium ion/proton mixed battery. The preparation process of the composite material for the water-based ammonium ion/proton mixed battery is simple an