Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of supramolecular hybrid airgel composites

A composite material and aerogel technology, applied in electrical components, structural parts, battery electrodes, etc., can solve problems such as limiting the development of power batteries, and achieve the effects of increasing electrochemical performance, reducing weight, and increasing specific surface area.

Active Publication Date: 2022-04-19
ZHEJIANG NARADA POWER SOURCE CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the electrode material structure of the lithium-ion battery itself and the performance of the electrolyte limit the development of power batteries, in order to seek further development in the field of power, it is necessary to solve the problem of improving the performance of lithium-ion batteries in terms of power

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of supramolecular hybrid airgel composites
  • Preparation method and application of supramolecular hybrid airgel composites
  • Preparation method and application of supramolecular hybrid airgel composites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of graphene oxide

[0023] The preparation of graphene oxide (GO) adopts the improved Hummers method. The graphite flakes are mixed with potassium permanganate, the concentrated sulfuric acid and phosphoric acid are mixed evenly, and the mixed solution of concentrated sulfuric acid and phosphoric acid is slowly added to the graphite. In the mixture of scales and potassium permanganate, keep the temperature at 30°C-40°C during the acid addition process, then stir at 45°C-55°C, react for 11-13h, and add concentrated sulfuric acid to it after the reaction system is cooled to room temperature Ice water with the same volume as the phosphoric acid mixture, then add hydrogen peroxide until the reaction system is bright yellow, then centrifuge at a speed of 4500r / min-5500r / min for 20min, discard the supernatant, and wash the rest with ultrapure water and hydrochloric acid in turn After washing three times respectively, the graphene oxide aqueous solution was obt...

Embodiment 2

[0032] (1) Preparation of graphene oxide

[0033]The preparation of graphene oxide (GO) adopts the improved Hummers method. The graphite flakes are mixed with potassium permanganate, the concentrated sulfuric acid and phosphoric acid are mixed evenly, and the mixed solution of concentrated sulfuric acid and phosphoric acid is slowly added to the graphite. In the mixture of scales and potassium permanganate, keep the temperature at 30°C-40°C during the acid addition process, then stir at 45°C-55°C, react for 11-13h, and add concentrated sulfuric acid to it after the reaction system is cooled to room temperature Ice water with the same volume as the phosphoric acid mixture, then add hydrogen peroxide until the reaction system is bright yellow, then centrifuge at a speed of 4500r / min-5500r / min for 30min, discard the supernatant, and wash the rest with ultrapure water and hydrochloric acid in turn After washing three times respectively, the graphene oxide aqueous solution was obta...

Embodiment 3

[0042] (1) Preparation of graphene oxide

[0043] The preparation of graphene oxide (GO) adopts the improved Hummers method. The graphite flakes are mixed with potassium permanganate, the concentrated sulfuric acid and phosphoric acid are mixed evenly, and the mixed solution of concentrated sulfuric acid and phosphoric acid is slowly added to the graphite. In the mixture of scales and potassium permanganate, keep the temperature at 30°C-40°C during the acid addition process, then stir at 45°C-55°C, react for 11-13h, and add concentrated sulfuric acid to it after the reaction system is cooled to room temperature Ice water with the same volume as the phosphoric acid mixture, then add hydrogen peroxide until the reaction system is bright yellow, then centrifuge at a speed of 4500r / min-5500r / min for 25min, discard the supernatant, and wash the rest with ultrapure water and hydrochloric acid in turn After washing three times respectively, the graphene oxide aqueous solution was obt...

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

PUM

No PUM Login to View More

Abstract

The invention provides a preparation method and application of a supramolecular hybrid airgel composite material. The preparation method of the supramolecular hybrid airgel composite material comprises a mixing step, a primary reaction step and a secondary reaction step. Mixing step: adding the metal organic framework compound solution and the iron source solution to the graphene oxide solution, and dispersing to obtain a raw material mixed solution; a primary reaction step: hydrothermally treating the raw material mixed solution to form a hydrogel; and secondary reaction Steps: after the hydrogel is successively treated by vacuum freeze-drying and high-temperature pyrolysis, a supramolecular hybrid airgel composite material is obtained.

Description

technical field [0001] The invention relates to the technical field of battery materials, in particular to a preparation method and application of a supramolecular hybrid airgel composite material. Background technique [0002] In recent years, with the increasing demand for clean energy, researchers have gradually turned their attention to clean energy such as lithium-ion batteries. Lithium-ion battery is a high-energy rechargeable battery in which lithium ions are intercalated and extracted between positive and negative electrode materials. During charging, lithium ions are extracted from the positive electrode and embedded in the negative electrode through the electrolyte solution. Balance, the compensation charge of the external circuit is transferred to the negative electrode, and the discharge process is opposite. Since lithium ions themselves have a lighter mass, this can ensure that the electrode material per unit mass can store more lithium ions, so the energy dens...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/583H01M10/0525
CPCY02E60/10
Inventor 马静刘月学王盈来郭锋
Owner ZHEJIANG NARADA POWER SOURCE CO LTD