Flexible electrode and preparation method thereof, as well as huge-energy flexible electric storage device with function of instant manufacturing for ready-to-use effect

A storage device, flexible conductive technology, applied in the direction of electrode manufacturing, active material electrodes, alkaline storage battery electrodes, etc., can solve the problems of waste, low energy density, increased production costs, etc., to reduce manufacturing costs, simplify the preparation process, and improve the shelf life prolonged effect

Active Publication Date: 2018-09-07
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flexible energy storage devices are composed of flexible electrodes, electrolytes, and flexible packaging materials. The development of flexible electrodes is naturally the key to development, but existing flexible batteries have problems such as low energy density.
More importantly, as a flexible electronic device, there will still be many problems in the actual marketization process. The long storage period and the inability to recycle are problems that need

Method used

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  • Flexible electrode and preparation method thereof, as well as huge-energy flexible electric storage device with function of instant manufacturing for ready-to-use effect
  • Flexible electrode and preparation method thereof, as well as huge-energy flexible electric storage device with function of instant manufacturing for ready-to-use effect
  • Flexible electrode and preparation method thereof, as well as huge-energy flexible electric storage device with function of instant manufacturing for ready-to-use effect

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0064] The present invention also provides a method for preparing an electrode, including the following steps:

[0065] After mixing the first metal salt with redox capability and the solvent, a first mixture is obtained;

[0066] After mixing the second metal salt with redox capability and the solvent, a second mixture is obtained;

[0067] Immerse the flexible conductive substrate of the positive electrode in the first mixture obtained in the above steps, and obtain the positive electrode after drying;

[0068] Immerse the flexible conductive substrate of the negative electrode in the second mixture obtained in the above steps, and obtain the negative electrode after drying;

[0069] The electrode includes a positive electrode and / or a negative electrode.

[0070] The selection and combination of the first metal salt with redox capability, the second metal salt with redox capability, and the positive / negative electrode flexible conductive matrix in the preparation method of the present...

Example Embodiment

[0102] Example 1

[0103] Step 1: Make a piece of length 4×4cm 2 The carbon cloth is soaked in concentrated nitric acid and sonicated for 15 minutes, then soaked in deionized water and sonicated for 15 minutes, taken out and dried naturally for later use;

[0104] Step 2. Put the cleaned carbon cloth into an aqueous solution of nickel metal salt (1.0 mole per liter) for soaking, take it out after 30 minutes, adsorb a layer of nickel metal salt on the surface of the carbon cloth, and dry at 50°C to obtain Positive electrode of storage device;

[0105] Step 3: Put the cleaned 4×4cm 2 The carbon cloth is soaked in the metal salt aqueous solution (2.0 moles per liter) of the negative iron, and taken out after 30 minutes. A layer of iron metal salt is adsorbed on the surface of the carbon cloth and dried at 50°C to obtain the negative electrode of the storage device;

[0106] Step 4. Prepare alkaline aqueous solution, control the concentration of potassium hydroxide to 3 moles per liter, o...

Example Embodiment

[0114] Example 2

[0115] Step 1: Soak a carbon fiber with a length of 5cm in concentrated nitric acid and ultrasonically treat it for 15 minutes, then soak it in deionized water and ultrasonically treat it for 15 minutes, take it out and dry it naturally for later use;

[0116] Step 2: Put the cleaned carbon fiber into an aqueous solution of nickel metal salt (1.0 mole per liter) for soaking, take it out after 30 minutes, adsorb a layer of nickel metal salt on the surface of the carbon fiber, and dry at 50°C to obtain an electrical storage device Piece positive

[0117] Step 3. Put the cleaned 5cm long carbon fiber into the metal salt aqueous solution (2.0 moles per liter) of the anode iron for soaking, take it out after 30 minutes, adsorb a layer of iron metal salt on the surface of the carbon fiber, and dry at 50°C to obtain The negative electrode of the storage device;

[0118] Step 4. Prepare alkali polyvinyl alcohol solid electrolyte, control the concentration of potassium hydr...

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Abstract

The invention provides an electrode. The electrode comprises a flexible conductive substrate and metal salt, wherein the metal salt is compounded onto the flexible conductive substrate and has the oxidation reduction ability; the electrode comprises a positive pole and/or a negative pole. The invention provides a novel flexible electrode material. The metal salt with the oxidation reduction ability and the flexible conductive substrate are combined to form the flexible electrode material; when the flexible electrode material is applied, an electric storage device has high energy density and high power density, and flexibility characteristic; the function of instant manufacturing for ready-to-use effect is realized, and the maintenance is not needed even if the flexible electrode material is stored for a long time; only the electrode and the electrolyte are mixed to form an effective electric storage part in the use process, the storage problem of the electric storage device does not need to be considered, the quality warranty period of the energy storage device is greatly prolonged, and the regeneration function is realized. The electrode has the advantages that the preparation technology is simplified, the manufacturing cost is reduced, and the synthesis step of any material is not needed.

Description

technical field [0001] The present invention relates to the technical field of electric storage devices, and relates to an electrode and its preparation method, a flexible electric storage device, and in particular to a flexible electrode and its preparation method, and a gigantic flexible ready-to-use electric storage device. Background technique [0002] Electricity storage device is a broad concept that generally refers to components that can store electric energy. Among the commonly used power storage devices, secondary batteries and supercapacitors have been research hotspots in the field in recent years. [0003] A secondary battery is a device that converts chemical energy into electrical energy. It is generally referred to as a battery. After discharge, it can regenerate the internal active material by charging and store electrical energy as chemical energy; when it needs to be discharged, it can convert chemical energy into electrical energy again. . Secondary bat...

Claims

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Application Information

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IPC IPC(8): H01M4/02H01M4/04H01M4/24H01M4/28H01M10/04H01M10/28H01G11/30H01G11/86
CPCH01G11/30H01G11/86H01M4/02H01M4/0416H01M4/24H01M4/28H01M10/04H01M10/28H01M2004/021Y02E60/10Y02P70/50
Inventor 薛冬峰陈昆峰梁晰童
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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