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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

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 to be solved urgently.
For example, the existing power storage devices will face problems such as self-discharge and failure during the placement process, and the long storage period will cause companies to periodically eliminate power storage devices before they are sold, which increases production costs and cannot Recycling will cause users to have a lot of waste after use, and it does not conform to the development concept of green environmental protection

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

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Experimental program
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preparation example Construction

[0064] The present invention also provides a preparation method of an electrode, comprising the following steps:

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

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

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

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

[0069] The electrodes include positive and / or negative electrodes.

[0070] In the present invention, the selection, combination and corresponding preferred range of the first metal salt with redox ability, the second metal salt with redox ability, and the positive / negative electrode flexible conductive substrate in t...

Embodiment 1

[0103] Step 1. Make a piece with a length of 4×4cm 2 The carbon cloth was soaked in concentrated nitric acid and ultrasonically treated for 15 minutes, then soaked in deionized water and ultrasonically treated for 15 minutes, and then dried naturally for use after taking it out;

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

[0105] Step 3: Put the cleaned 4×4cm 2 Put the carbon cloth into the metal salt solution (2.0 moles per liter) of the negative electrode iron for soaking, take it out after 30 minutes, absorb a layer of iron metal salt on the surface of the carbon cloth, and dry it at 50 ° C to obtain the negative electrode of the electric storage device;

[0106] Step 4, prepare aqueous alkali solution, control the concentra...

Embodiment 2

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

[0116] Step 2. Soak the cleaned carbon fiber in an aqueous solution of nickel metal salt (1.0 mol per liter), take it out after 30 minutes, absorb a layer of nickel metal salt on the surface of the carbon fiber, and dry it at 50°C to obtain a storage device piece positive;

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

[0118] Step 4, preparing alkali polyvinyl alcohol solid electrolyte, controlling the concentration of potassium hydroxide to 3 moles per liter...

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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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