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High-potential high-capacity organic polymer anode material and preparation method and application thereof

A positive electrode material, high capacity technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problem that it does not have high potential and high capacity performance, and the positive electrode material of sodium ion battery cannot be well applied and cannot be well applied to large-scale storage. Energy field and other problems, to overcome the poor battery cycle stability, excellent cycle stability, better effect

Inactive Publication Date: 2019-06-21
欧格尼材料科技江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing anode materials suitable for sodium ion batteries cannot be applied well, do not have the performance of high potential and high capacity, and cannot be well applied in the field of large-scale energy storage. The purpose is to provide a A kind of high-potential high-capacity organic polymer positive electrode material and its method and application, solve the use problem of sodium-ion battery positive electrode material

Method used

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  • High-potential high-capacity organic polymer anode material and preparation method and application thereof
  • High-potential high-capacity organic polymer anode material and preparation method and application thereof

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Embodiment 1

[0032] The invention discloses a high-potential and high-capacity organic polymer positive electrode material and its method and application. The raw material includes polyvinyl carbazole.

[0033] Specifically, a high-potential and high-capacity organic polymer positive electrode material, the raw material also includes a conductive carbon material and a binder.

[0034] Preferably, the mass ratio of polyvinylcarbazole, conductive carbon material and binder is 60-80wt%: 10-30wt%: 10wt%.

[0035] In this embodiment, the specific ratio and composition of the cathode material are shown in Table 1 by mass.

[0036] Table 1

[0037] Polyvinylcarbazole conductive carbon material binder Example 1 70 20 10 Example 2 65 25 10 Example 3 90 50 30 Example 4 40 5 5 Example 5 50 40 5

[0038] Wherein, the binder is LA133 binder.

Embodiment 2

[0040] A method for preparing a high-potential high-capacity organic polymer positive electrode material, comprising the following steps:

[0041] (1) Disperse polyvinyl carbazole and conductive carbon material in NMP in proportion, stir for 10 minutes, and then sonicate for 30 minutes;

[0042] (2) Weigh the mixed polyvinyl carbazole and conductive carbon material, put them into an agate mortar, add a binder, and grind for 30 minutes to obtain a slurry;

[0043] The slurry is the positive electrode material. Wherein, NMP is N-methylpyrrolidone.

Embodiment 3

[0045] An electrode sheet of a high-potential and high-capacity organic polymer cathode material

[0046] (1) Disperse polyvinyl carbazole and conductive carbon material in NMP in proportion, stir for 10 minutes, and then sonicate for 30 minutes;

[0047] (2) Weigh the mixed polyvinyl carbazole and conductive carbon material, put them into an agate mortar, add a binder, and grind for 30 minutes to obtain a slurry;

[0048] (4) The obtained slurry was uniformly coated on an aluminum foil, dried at 60° C., and then punched with a puncher with a diameter of 12 mm to obtain a PVK electrode sheet.

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Abstract

The invention discloses a high-potential high-capacity organic polymer anode material and a preparation method and application thereof. The material comprises a raw material of polyvinyl carbazole. The organic polymer material polyvinyl carbazole is used for preparing the sodium ion battery anode material, so that the cost of the raw material is further reduced, and the battery cost is effectivelysaved.

Description

technical field [0001] The invention relates to the field of sodium ion batteries, in particular to a high-potential and high-capacity organic polymer positive electrode material and a method and application thereof. Background technique [0002] Lithium-ion secondary batteries (LIBs) have been widely used in various portable electronic products, pure electric vehicles and hybrid vehicles due to the advantages of high energy density, high operating voltage, long cycle life and low self-discharge rate. However, the lithium reserves in LIBs are very limited (crust content: ~0.0065%), making it difficult to further reduce the cost of lithium-containing electrode materials; at the same time, it is difficult to further increase the energy density of LIBs. The above two important factors greatly limit the application of lithium-ion batteries in the field of large-scale energy storage. [0003] The study found that the standard redox potential of sodium (-2.71V for Na+ / Na) is very...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/60H01M4/137H01M10/054
CPCY02E60/10
Inventor 樊聪唐武赵伟
Owner 欧格尼材料科技江苏有限公司
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