Preparation method of flexible and foldable all-organic secondary battery

Abstract

The invention relates to a preparation method of a flexible and foldable all-organic secondary battery, and belongs to the technical field of electrochemical power sources. The preparation method of the flexible and foldable all-organic secondary battery comprises the following steps: (1) preparation of an anode material and a thin film, namely adding naphthalenetetracarboxylic dianhydride and 4,4'-diaminodiphenyl ether to an n-methyl pyrrolidone (NMP) solution, adding a graphene conducting agent and carrying out reflux reaction in an argon atmosphere to prepare the film; (2) preparation of a cathode material and the thin film, namely putting ferrocene, tetramethylethylenediamine and n-butyl lithium into a Schlenk reaction bottle, adding petroleum ether, reacting and precipitating the mixture, cleaning the sediment with a solvent, adding the petroleum ether, dropwise adding hydrogen methyl dichlorosilane, and carrying out thermochemical polymerization on solid to prepare the film; (3) preparation of polymer gel electrolyte, namely mixing polyvinyl pyrrolidone with NaCl/H2O liquid; and (4) battery assembly, assembling the cathode material film, the anode material film and the gel electrolyte into the battery. The preparation method has the advantages that the process is stable; the product is ultrathin, controllable, flexible, foldable, easy to design, safe and nontoxic, and can meet the requirements of human body fitting comfort and special occasions.

Description

technical field [0001] The invention belongs to the technical field of chemical power sources, and in particular relates to a preparation method of a flexible and foldable all-organic secondary battery. Background technique [0002] At present, wearable electronic devices are one of the current hot spots in the development of electronic devices, and the key technology that restricts the rapid development of wearable devices will be the matching power components. Hundreds of different wearable devices have appeared on the market, but there have been few breakthroughs in wearable power technology. Based on the structure of the human body, how to better fit the wearable power supply to human limbs is an urgent problem to be solved, and the flexibility of the film of the power supply system has become a solution to this problem. [0003] At present, the main thin-film power supply for wearable electronic devices is thin-film lithium-ion battery, but this kind of battery is only...

AI Technical Summary

Problems solved by technology

Limited by the basic structure and main material properties of lithium-ion batteries, thin-film lithium-ion batteries cannot be used for long-term, random, and large-scale folding and bending, especially with the use of clothing.

Moreover, the existing thin-film lithium-ion batteries, due to the use of organic electrolytes or transition metal electrode materials, have certain toxic properties to the human body. If they leak, they will threaten the health of the human body.

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