Preparation method of water-retentive alkaline gel electrolyte

A gel electrolyte, alkaline technology, applied in the energy field, can solve the problems of low ion mobility, dehydration failure, poor water retention, etc., and achieve the effects of high ion mobility, simple preparation method, and prolonged service life.

Inactive Publication Date: 2019-02-01
SHANGHAI SHANGDE EXPERIMENTAL SCHOOL
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Problems solved by technology

Among them, the flexible electrolyte is the key material to realize the flexible battery. At present, the semi-solid flexible electrolyte based on polyvinyl alcohol (PVA) gel is mainly used, but a fatal problem of this type of electrolyte is poor moisture retention, even when it is n...

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  • Preparation method of water-retentive alkaline gel electrolyte

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0022] Such as figure 1 Shown, a kind of preparation method of water retention alkaline gel electrolyte, its steps are as follows:

[0023] S1. The tetraethylammonium hydroxide (TEAOH) solution was magnetically stirred at room temperature.

[0024] Take 7-13mL tetraethylammonium hydroxide (TEAOH) solution with a mass fraction of 35% in a flask, and stir it magnetically at room temperature.

[0025] S2. Potassium hydroxide is slowly added to the tetraethylammonium hydroxide (TEAOH) solution, and ...

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Abstract

The invention discloses a preparation method of water-retentive alkaline gel electrolyte, comprising the steps of subjecting TEAOH (tetraethylammonium hydroxide) solution to normal-temperature magnetic stirring; adding potassium hydroxide slowly into the TEAOH solution, and magnetically stirring continuously to form a mixed solution; adding PVA (polyvinyl alcohol) slowly into the mixed solution, and stirring and dispersing at a set stirring temperature; heating under continuous stirring and dispersing to a set heating temperature to from gel; pouring the gel into a container, freezing to shape, and thawing after shaping to obtain water-retentive alkaline gel electrolyte. The water-retentive alkaline gel electrolyte prepared herein has good moisturizing function and stability in air and hashi8gh ion migration rate and high conductivity, the preparation method is simple, and the service life of a flexible cell can be extended.

Description

technical field [0001] The invention belongs to the technical field of energy, and in particular relates to a preparation method of a water-retaining alkaline gel electrolyte. Background technique [0002] Future electronic devices are developing towards flexible and wearable devices. A variety of novel flexible electronic devices have emerged as the times require, attracting the attention of the public and many companies. At present, some companies have launched a series of flexible electronic products such as flexible screens, flexible keyboards, and wearable medical detectors. In order to truly realize the concept of flexible devices, the energy storage and energy supply units of flexible devices must also be flexible. Therefore, flexible energy storage devices, including traditional flexible zinc-manganese batteries, flexible supercapacitors, and some new high-energy-density batteries such as flexible zinc-air batteries, have attracted extensive attention from industry...

Claims

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Application Information

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IPC IPC(8): H01M10/26
CPCH01M10/26H01M2300/0014H01M2300/0085Y02E60/10
Inventor 王书阳鲍若凡
Owner SHANGHAI SHANGDE EXPERIMENTAL SCHOOL
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