Modified inorganic nanoparticles, polymer mixed slurry, composite membrane and preparation method

A technology of inorganic nanoparticles and mixed slurry, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of affecting the performance of proton exchange membranes, not having the ability to conduct protons, and easily water-retaining substances. Agglomeration and other problems, to achieve high water absorption and long-lasting water retention capacity, high content of phosphonic acid groups, high dielectric constant effect

Inactive Publication Date: 2020-05-05
SHENZHEN GENERAL HYDROGEN ENERGY TECH CORP LTD
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Problems solved by technology

[0004] However, the inventors of the present application have found in the long-term research and development process that commonly used water-retaining substances are either easy to agglomerate, or affect the performance of proton exchange membranes, and do not have the ability to conduct protons. limited

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  • Modified inorganic nanoparticles, polymer mixed slurry, composite membrane and preparation method
  • Modified inorganic nanoparticles, polymer mixed slurry, composite membrane and preparation method
  • Modified inorganic nanoparticles, polymer mixed slurry, composite membrane and preparation method

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] see figure 1 , figure 1 It is a schematic diagram of the molecular formula structure of an embodiment of the modified inorganic nanoparticle of the present invention. The modified inorganic nanoparticle includes: an inorganic nanoparticle 10 and a plurality of phosphonic acid groups 20 .

[0027] The surface of the inorganic nanoparticle 10 has a plurality of evenly distributed hydrophilic groups 101 ; and a plurality of phosphonic acid groups 20 are e...

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Abstract

The invention discloses a modified inorganic nanoparticle, a polymer mixed slurry, a composite membrane and a preparation method; the modified inorganic nanoparticle comprises: an inorganic nanoparticle having a plurality of uniformly distributed hydrophilic groups on the surface; and the plurality of phosphonic acid groups that are uniformly distributed on the surfaces of the inorganic nanoparticles. In this way, the agglomeration phenomenon can be prevented, and it is guaranteed that the proton exchange membrane has the lasting water retention capacity and the effect of improving the protonconductivity under the low-humidity condition.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a modified inorganic nanoparticle, a polymer mixed slurry, a composite membrane and a preparation method for the modified inorganic nanoparticle, a polymer mixed slurry, and a composite membrane. Background technique [0002] A fuel cell is an electrochemical cell whose main principle is to convert the chemical energy in fuel and oxidant directly into electrical energy through oxidation-reduction reactions. Proton Exchange Membrane Fuel Cell (PEMFC, Proton Exchange Membrane FuelCell) is an important branch of the fuel cell field. In addition to the general characteristics of fuel cells such as high energy conversion efficiency and environmental friendliness, it also has fast start-up speed and small size at room temperature. , No electrolyte loss, easy drainage, long life, high specific power and specific energy and other outstanding advantages. Therefore, proton exchange memb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/22C08K3/34C08K9/04C09D127/18C09D7/62H01M8/1004H01M8/1041H01M8/1069H01M8/1081B82Y30/00
CPCB82Y30/00C08K3/22C08K3/34C08K9/04C08K2003/2213C08K2003/2241C08K2201/011C09D127/18C09D7/62H01M8/1004H01M8/1041H01M8/1069H01M8/1081Y02E60/50
Inventor 黄衡恢樊建涛张立徐姣艳杨成
Owner SHENZHEN GENERAL HYDROGEN ENERGY TECH CORP LTD
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