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A kind of preparation method and application of polymer-containing nanowire composite film material

A composite thin film and nanowire technology, applied in structural parts, secondary battery repair/maintenance, electrical components, etc., can solve problems such as reducing the cycle stability of solid-state batteries, achieve short synthesis time, improve transmission efficiency, and improve performance Effect

Active Publication Date: 2022-02-08
佛山仙湖实验室
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the volume change of the cathode particles, some cracks in the inorganic buffer layer were observed after cycling, which greatly reduced the cycle stability of solid-state batteries.

Method used

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  • A kind of preparation method and application of polymer-containing nanowire composite film material
  • A kind of preparation method and application of polymer-containing nanowire composite film material
  • A kind of preparation method and application of polymer-containing nanowire composite film material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A polymer-containing nanowire composite thin film material, which sequentially includes a polymer layer, a composite layer and a functional interface layer from top to bottom, and the thickness of the polymer-containing nanowire composite thin film material is 35 μm.

[0055] in,

[0056] The composite layer includes a framework structure composed of graphene and nanowires, and the voids of the framework structure are filled with polymers;

[0057] The functional interface layer is composed of a framework structure composed of graphene and nanowires.

[0058] The content of polyethylene oxide in the composite layer is 40wt% of the composite layer; the thickness is 25 μm;

[0059] The nanowires have a diameter of 100 mm and a length of 5 μm.

[0060] The preparation method of the above-mentioned polymer-containing nanowire composite thin film material comprises the following steps:

[0061] S1. the composite material (graphene accounts for 3wt% of composite material) ...

Embodiment 2

[0073] A polymer-containing nanowire composite thin film material, which sequentially includes a polymer layer, a composite layer and a functional interface layer from top to bottom, and the thickness of the polymer-containing nanowire composite thin film material is 37 μm.

[0074] in,

[0075] The composite layer includes a framework structure composed of graphene and nanowires, and the voids of the framework structure are filled with polymers;

[0076] The functional interface layer is composed of a framework structure composed of graphene and nanowires.

[0077] The content of polyethylene oxide in the composite layer is 45wt% of the composite layer; the thickness is 30 μm;

[0078] The nanowires have a diameter of 150 mm and a length of 6 μm.

[0079] The preparation method of the above-mentioned polymer-containing nanowire composite thin film material comprises the following steps:

[0080] S1. the composite material (graphene accounts for 3wt% of composite material) ...

Embodiment 3

[0084] A polymer-containing nanowire composite film material, which sequentially includes a polymer layer, a composite layer and a functional interface layer from top to bottom, and the thickness of the polymer-containing nanowire composite film material is 40 μm.

[0085] in,

[0086] The composite layer includes a framework structure composed of graphene and nanowires, and the voids of the framework structure are filled with polymers;

[0087] The functional interface layer is composed of a framework structure composed of graphene and nanowires.

[0088] The content of polyethylene oxide in the composite layer is 50wt% of the composite layer; the thickness is 35 μm;

[0089] The nanowires have a diameter of 170 mm and a length of 8 μm.

[0090] The preparation method of the above-mentioned polymer-containing nanowire composite thin film material comprises the following steps:

[0091] S1. the composite material (graphene accounts for 3wt% of composite material) of the nan...

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Abstract

The present invention aims to provide a polymer-containing nanowire composite thin film material, which comprises a polymer layer, a composite layer and a functional interface layer in sequence from top to bottom, wherein the composite The layer includes a frame structure composed of graphene and nanowires, the frame structure has voids, and polymers are filled in the voids; the functional interface layer is a frame structure composed of graphene and nanowires Composition; The polymer is polyethylene oxide. The invention also relates to a preparation method of the above-mentioned polymer-containing nanowire composite thin film material and its application in lithium batteries.

Description

technical field [0001] The invention relates to the field of film materials, in particular to a polymer-containing nanowire composite film material, a preparation method and an application thereof. Background technique [0002] With the rapid development of economy and technology, the gradual depletion of fossil energy has become increasingly prominent, and the research, development and utilization of efficient, clean and renewable energy is imminent. Among many renewable energy sources, lithium-ion batteries exhibit excellent energy storage performance and are one of the effective ways to solve energy crisis and environmental problems. However, due to safety issues such as flammability, corrosion, and poor thermal stability of organic electrolytes, the development of traditional lithium-ion batteries is limited. In comparison, all-solid-state batteries are considered to be the preferred direction for the next generation of new power batteries and energy storage batteries b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M4/62H01M10/0525
CPCH01M10/4235H01M4/624H01M10/0525Y02E60/10
Inventor 徐林程宇陈一鸣麦立强
Owner 佛山仙湖实验室
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