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Tungsten-based material super battery and super capacitor

A super battery, tungsten-based technology, applied in the field of chemistry, can solve problems that cannot meet the needs of large-scale energy storage and power supply fields

Active Publication Date: 2020-12-18
合肥集新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, many improvements in lead-acid battery materials, structures and processes are still unable to break through the bottleneck that limits its performance improvement, making it unable to meet the needs of large-scale energy storage and power supply fields.

Method used

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  • Tungsten-based material super battery and super capacitor
  • Tungsten-based material super battery and super capacitor
  • Tungsten-based material super battery and super capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0136] First, the synthesis method and specific characterization of tungsten oxide are as follows:

[0137] (1) Preparation of tungsten oxide.

[0138] (A) Ammonium tungstate was dissolved in deionized water to prepare a 3% ammonium tungstate solution by mass fraction, and 2 molar concentration of sulfuric acid was added to adjust the acid concentration in the solution to 1.5%. Stir the above solution for 30 minutes to obtain a uniformly mixed solution, transfer the mixed solution to a 5-liter reactor and heat to 95 degrees Celsius for 60 hours; after the reaction is completed, it is naturally cooled, the product is washed with deionized water, and the electrode is obtained after drying. Tungsten oxide active material. In order to further understand the morphology and structure of the prepared hydrated tungsten oxide material, the applicant further performed transmission electron microscope and XRD characterizations on it, and the results are as follows:

[0139] attached ...

Embodiment 2

[0153] Example 2 Tungsten super battery based on tungsten oxide negative electrode and carbon positive electrode

[0154] (1) Preparation of tungsten oxide. Dissolve ammonium tungstate in deionized water to prepare a 5% ammonium tungstate solution by mass fraction, add 2 molar sulfuric acid to adjust the acid concentration in the solution to 1.5%, and then add 1% ammonium sulfate by mass fraction. Stir the above solution for 30 minutes to obtain a uniformly mixed solution, transfer the mixed solution to a reaction kettle and heat it to 90 degrees Celsius for 12 hours; after the reaction is completed, cool naturally, wash the product with deionized water, and obtain a hexagonal crystal structure after drying. Tungsten active material.

[0155] (2) Fabrication of tungsten oxide electrodes and carbon electrodes. The tungsten oxide prepared by the method (1) in Example 2, the carbon black conductive agent, and the polyvinylidene fluoride binder are dispersed in an appropriate amou...

Embodiment 3

[0159] Example 3 Tungsten super battery based on carbon-tungsten composite negative electrode and carbon positive electrode

[0160] (1) Fabrication of composite tungsten oxide electrode and carbon electrode.

[0161] The tungsten oxide active material synthesized as in Example 2 was used. Disperse the tungsten oxide, activated carbon, carbon black conductive agent, and polyvinylidene fluoride binder in an appropriate amount in the ratio of 4:4:1:1 in the nitrogen methyl pyrrolidone solvent, stir and mix evenly to obtain a composite tungsten oxide electrode slurry. It should be noted here that the carbon material in the composite tungsten oxide electrode can be any commercially available carbon material used in the electrode, and activated carbon is only one of the commonly used options, rather than any particularly preferred example. Those skilled in the art can easily select other common carbon materials to replace the activated carbon in this embodiment. In each of the f...

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Abstract

A high-performance tungsten-based super battery system, covering the corresponding material-structure-process integrated design and construction method. In this technology, tungsten-based materials are used as negative electrodes, and high specific surface carbon or lead oxide positive materials are assembled into four types of super batteries, including 1) tungsten-carbon super battery, 2) tungsten-tungsten super battery, 3) tungsten-oxidized Lead super battery, 4) super battery system with mixed tungsten (containing lead oxide, lead and carbon materials), that is, the above two types of super batteries are used in combination.

Description

technical field [0001] The invention relates to a tungsten trioxide material used in an electrochemical energy storage conversion device, including the design and synthesis of electrode materials, the design and preparation of electrode and battery structures, and the design and manufacture of other related components. More specifically, it involves the fields of chemistry, chemical engineering, materials and energy. Background technique [0002] This patent application relates to the design and manufacture of high-performance batteries and supercapacitors (collectively referred to as supercells in this patent). With the process of industrialization and the rapid development of the global economy, the world's energy consumption has also increased steadily, which will inevitably lead to the depletion of fossil fuels and the deterioration of the ecological environment. [0003] Exploring renewable energy sources (such as solar energy, wind energy, and tidal energy) while impr...

Claims

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Application Information

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IPC IPC(8): H01M4/48
CPCH01M4/48H01M4/56H01M4/583H01M10/20H01M10/36Y02E60/10Y02E60/13H01G11/46H01M2220/20
Inventor 张雨虹
Owner 合肥集新能源科技有限公司
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