The invention discloses an in-situ preparation method and application of a polymer electrolyte. According to the method, a monomer, an initiator and lithium salt are mixed under the condition that noligands are used; the monomer, the initiator and the lithium salt are uniformly stirred so as to form a precursor solution; a cellulose membrane is soaked in the precursor solution under a protectivegas; heating and a reaction are carried out for 24 hours, so that the monomer is subjected to an atom transfer radical polymerization reaction, so that a polymer and a polymer electrolyte are obtained; and the polymer and the polymer electrolyte are applied to a lithium battery. With the in-situ preparation method and the application of the polymer electrolyte of the invention adopted, the defectssuch as long preparation period, complex process route, organic solvent retention, and introduction of impurities of an existing polymer electrolyte can be eliminated; a technological process is simplified; the growth of lithium dendrites is inhibited; and the problem of electrolyte leakage can be thoroughly solved. With the novel method adopted, the polymer electrolyte for the lithium battery can be simply and effectively prepared.

In-situ preparation method and application of polymer electrolyte

The invention discloses a method for synthesizing a polyethylene glycol-based segmented copolymer. According to the method, under a condition that no ligand is used, four reaction raw materials, namely a monomer, a catalyst, a macroinitiator PEO-Br or PEO-Cl, and a solvent, are mixed, and then a corresponding segmented copolymer is prepared from the monomer through atom transfer free radical polymerization reactions. By improving the raw materials for the atom transfer free radical polymerization reactions, micro reaction mechanisms corresponding to a synthesis method, and the like, the polyethylene glycol-based segmented copolymer is synthesized under the condition that no ligand is used, defects that ligand in a conventional atom transfer free radical polymerization system is high in price, large in toxicity, large in volatilization, and the like, can be effectively solved, a synthesis method for synthesizing the segmented copolymer by using an atom transfer free radical polymerization method is further improved, and environment damage and reaction cost can be reduced.

Method for synthesizing polyethylene glycol-based segmented copolymer

The invention belongs to the field of polymer electrolytes, and particularly relates to a triblock hybrid polymer electrolyte as well as a preparation method and application thereof. The key structureand composition in the polymer electrolyte, the preparation process and the like are improved; the preparation method comprises the following steps: dissolving octamercapto polysilsesquioxane, a methacrylate-terminated polyester-polyethylene glycol-polyester triblock polymer and metal salt in an organic solvent; carrying out ultraviolet curing reaction, and preparing the triblock hybrid polymer electrolyte by utilizing ring-opening polymerization reaction of hydroxyl and cyclic lactone and thiol-ene reaction without photosensitizer ultraviolet initiation. Compared with the prior art, the problems of low ionic conductivity, low lithium ion transference number, poor mechanical properties and the like of the polymer electrolyte can be effectively solved.

Triblock hybrid polymer electrolyte as well as preparation method and application thereof

The invention discloses a sulfur-containing polymer solid electrolyte as well as a preparation method and application thereof. The sulfur-containing polymer solid electrolyte comprises a sulfur-containing polymer, a lithium salt and a porous support material; the molecular weight of the sulfur-containing polymer is 2000-50000 Da, and the mass fraction of the sulfur-containing polymer in the sulfur-containing polymer solid electrolyte is 35%-85%. The sulfur-containing polymer solid electrolyte is applied to preparation of a solid lithium battery. The sulfur-containing polymer solid electrolyteprovided by the invention has relatively high lithium ion conductivity and a relatively wide electrochemical window; the solid-state lithium battery provided by the invention can realize rapid charging and discharging, is good in rate capability, and has excellent long-cycle stability.

Sulfur-containing polymer solid electrolyte as well as preparation method and application thereof

The invention discloses an atom transfer free radical polymerization method regulated and controlled by an inorganic metal salt; according to the method, under a condition without use of other organiccompounds and additives, a polymerization system including vinyl monomers, an initiator, the inorganic metal salt and a transition metal catalyst makes the vinyl monomers undergo an atom transfer free radical polymerization reaction to generate a corresponding polymer under the action of the inorganic metal salt with the catalyst and the initiator. By improvement of the reaction raw materials used in the key atom transfer free radical polymerization reaction, the action of inorganic metal salt cations and the initiator is used, the oxidation-reduction potential of the catalyst is reduced, andthe atom transfer free radical polymerization reaction of the vinyl monomers is more easily catalyzed to generate the polymer with active characteristics. The polymerization method adopts cheap and easily available inorganic metal salt for participating in the reaction, can avoid use of expensive and great-toxicity organic compounds and additives, and reduces the degree of damage to the environmental and reaction costs.

Atom transfer free radical polymerization method regulated and controlled by inorganic metal salt

The invention discloses a toxic ligand free electrochemistry regulated atom transfer radical polymerization method. According to the method, under an electrochemical effect, no any toxic ligand is used, and five reactions raw materials namely monomers, a catalyst, an initiator, an electrolyte, and a solvent are mixed to make the monomers carry out atom transfer radical polymerization reactions to generate corresponding polymers. The reaction raw materials and reaction conditions of atom transfer radical polymerization reactions are improved; during the process of atom transfer radical polymerization reactions, an electrochemical effect is applied; the problem that a low valent transition metal catalyst is difficult to store and process in an atom transfer radical polymerization system is effectively solved; the shortages such as toxic ligand, pricy reducing agent, strong toxicity, volatility, and the like, are overcome, and the damage to the environment and the reaction cost are both reduced.

Toxic ligand free electrochemistry regulated atom transfer radical polymerization method

The invention discloses a ligand-free atom transfer radical polymerization method under the action of alkali. The method is characterized by comprising the following step: mixing reaction raw materials comprising a monomer, an initiator and a catalyst without using a ligand under the action of alkali, so that the monomer is subjected to atom transfer radical polymerization reaction to generate a corresponding polymer. The ligand-free atom transfer radical polymerization method improves the reaction raw materials adopted in the key atom transfer radical polymerization reaction, uses alkali to participate in the reaction, can further optimize components of an atom transfer radical polymerization system, overcomes defects that toxic and volatile organic compounds or polar solvents used by the atom transfer radical polymerization system as the ligands are expensive, highly toxic and volatile in the prior art, and reduces the degree of damage to the environment and the reaction cost.

Ligand-free atom transfer radical polymerization method under action of alkali

The invention belongs to the field of polymer electrolytes, and relates to a preparing method and application of a polymer electrolyte. According to the preparing method, a first reactant containing sulfydryl terminals and a second reactant with the two ends containing acrylate terminals are taken as raw materials, and under the function of a main catalyst and a cocatalyst, a sulfydryl-Michael addition reaction is carried out for preparing the polymer electrolyte. The first reactant at least contains three sulfydryl groups; the main catalyst is used for capturing protons on the sulfydryl groups of the first reactant to form thioalcohol negative ions, and the thioalcohol negative ions are used for attacking electron-deficiency double bonds in the second reactant; metal salt serves as the cocatalyst; positive ions of the metal salt and the second reactant are subjected to a complex reaction, so that the electron cloud density of the double bonds of acrylate is lowered, the process that the thioalcohol negative ions attack the double bonds of the acrylate for the sulfydryl-Michael addition reaction is promoted, and the reaction speed and the conversion rate of the addition reaction are increased.

Preparing method and application of polymer electrolyte

The invention provides a ligand-free atom transfer radical polymerization method under the effect of metal elementary substances. Organic ligands are omitted in the ligand-free atom transfer radical polymerization method. Polymerization systems comprise vinyl monomers, halogenated hydrocarbon, the metal elementary substances and transition metal catalysts. The ligand-free atom transfer radical polymerization method has the advantages that atom transfer radical polymerization reaction can be carried out on the monomers under halogenated hydrocarbon activation effects of the metal elementary substances, and accordingly polymers with narrow molecular weight distribution can be generated; the halogenated hydrocarbon is activated by the aid of the metal elementary substances, accordingly, the reaction activity of the polymerization systems can be improved, polymerization after-treatment procedures can be simplified, and the cost can be reduced; the organic ligands are omitted in the ligand-free atom transfer radical polymerization method, and accordingly the shortcomings of high cost and toxicity, volatility and the like due to organic compounds or polar solvents which are used as ligands in existing atom transfer radical polymerization systems can be overcome.

Ligand-free atom transfer radical polymerization method under effect of metal elementary substances

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Wang Jirong

Author Tools

Chat about Author