The invention discloses a method for preparing a lithium ion battery positive electrode material. The method comprises the following steps: preparing a monodisperse graphene solution with consistent flake diameter size and good dispersion in an ultrasonic oscillation manner; and transferring the graphene solution into a high-shear emulsifying homogenizer for performing shearing dispersion, and filling the sheared graphene solution and a positive active material into a zirconia ball milling tank together for performing ball milling and mixing. The graphene solution is mixed with the positive active material in a mechanical ball milling manner, so that the graphene can be inlaid into or coated with positive active material granules, an excellent bonding interface can be formed, and the positive active material granules are refined; and therefore, the material is uniform, and the rate capability and consistency of the material are improved. Finally, the positive slurry subjected to ball milling is dried, ground and screened so as to obtain the positive electrode material powder.

Method for preparing lithium ion battery positive electrode material

The invention discloses a preparation method for improving cycle performance of a LiMnO2 lithium ion battery positive electrode material by use of graphene. The LiMn2O4-graphene composite positive electrode material is prepared through simply ball-milling graphene and LiMn2O4. Compared with the LiMn2O4 material, the LiMnO2 lithium ion battery positive electrode material has the advantages that because of a three-dimensional conductive frame formed by the graphene, the agglomeration of LiMn2O4 particles is relieved, the volume change of the LiMn2O4 material due to intercalation and deintercalation of Li can be adapted, the intercalation and deintercalation and the charge transfer speed are also increased, and the cyclic performance of the LiMnO2 positive electrode material is more greatly improved. The preparation method is simple in steps, and low in cost; the obtained LiMnO2-graphene positive electrode material is better in conductivity and charge transfer speed than those of the LiMn2O4 material, shows more excellent cyclic performance of a lithium ion battery, and is expected to be popularized and applied in the industrial field of lithium ion batteries.

Preparation method of LiMn2O4-graphene composite positive electrode material

The invention relates to a method for producing an aluminum foil-based positive electrode plate from a high-dispersion graphene improved ternary material. The method comprises the following steps: mixing graphene powder with an activator, and carrying out stirring, washing, dewatering, suction filtration, vacuum drying, mixing and ultrasonic vibration to obtain an intercalated graphene solution; and mixing the intercalated graphene solution, a ternary material and polyvinylidene fluoride, or mixing the intercalated graphene solution, the ternary material, conductive carbon and polyvinylidene fluoride, and then producing the ternary positive electrode plate according to production steps of the ternary positive electrode plate in the lithium battery industry. The method has the advantages oflow raw material cost, wide sources of raw materials, simple preparation process, simplicity in operation, and short time. The produced sample has an excellent discharge performance, especially has agood discharge cycle performance under a large current condition, and lays a solid foundation for industrialization.

Method for producing aluminum foil-based positive electrode plate from high-dispersion graphene improved ternary material

The invention relates to a method for improving the performances of a ternary electrode through intercalated graphene. The method comprises the following steps: mixing graphene powder with an activator, and carrying out stirring, washing, suction filtration, vacuum drying and ultrasonic mixing to prepare an intercalated graphene solution; and producing the ternary positive electrode by using the intercalated graphene solution as a conductive agent. The activator is a concentrated nitric acid and hydrogen peroxide mixed solution, and a mass ratio of 65 wt% concentrated nitric acid to 30 wt% hydrogen peroxide is 1:(0.1-0.5). The method has the advantages of low raw material cost, wide sources of raw materials, simple preparation process, simplicity in operation, and short time. The producedsample has an excellent discharge performance, especially has a good discharge cycle performance under a heavy current condition, and lays a solid foundation for industrialization.

Method for improving performances of ternary electrode through intercalated graphene

The invention relates to a graphene-containing lithium manganate positive pole piece is formed by applying a coating material on an aluminum foil surface The coating material is composed of the following components in percentage by weight: 75-94% of positive pole material, 1-15% of conducting agent and 5-10% of binding agent The positive pole piece prepared by the preparation method enhances the capacity, cycle performance and rate capability of the battery, and improves the availability of graphene

Preparation method of graphene-containing lithium manganate positive pole piece

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.

Jing Mengmeng

Author Tools

Chat about Author

Papers

Preparation method of graphene-containing lithium manganate positive pole piece