Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for the manufacture of electrodes

An electroactive, repeating unit technology, used in positive electrodes, negative electrodes, electrode fabrication, etc.

Pending Publication Date: 2021-12-14
SOLVAY SA +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although in the specification it is mentioned that a solvent can be added, there is no example of a method in which the mixture to be treated is liquid (no reference to the attached drawing)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for the manufacture of electrodes
  • Method for the manufacture of electrodes
  • Method for the manufacture of electrodes

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0140] According to a first embodiment of the invention, said medium (L) comprises at least one organic carbonate as sole medium (L).

[0141] Non-limiting examples of suitable organic carbonates include, notably: ethylene carbonate, propylene carbonate, mixtures of ethylene and propylene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate esters, butylene carbonate, vinylene carbonate, fluoroethylene carbonate, fluoropropylene carbonate, and mixtures thereof.

no. 2 example

[0142] According to a second embodiment of the invention, said medium (L) comprises at least one ionic liquid (IL) as sole medium (L).

[0143] The term "ionic liquid (IL)" is here intended to mean a compound formed by the combination of a positively charged cation with a negatively charged anion, which exists in the liquid state at atmospheric pressure at temperatures below 100°C.

[0144] Ionic liquid (IL) can be selected from protic ionic liquid (IL p ), aprotic ionic liquid (IL a ) and mixtures thereof.

[0145] The term "protic ionic liquid (IL p )" is here intended to mean that the cation contains one or more H + Ionic liquids of hydrogen ions.

[0146] Contains one or more H + Non-limiting examples of cations for hydrogen ions include notably imidazolium, pyridinium, pyrrolidinium, or piperidinium rings in which a positively charged nitrogen atom is bound to H + on hydrogen ions.

[0147] The term "aprotic ionic liquid (IL a )" is here intended to mean that the ...

example A

[0250] Example A - Compositions for the preparation of anodes

[0251] The compositions of Example 1 and Example 2 were each extruded at a temperature of 200°C. The residence time in the extruder was 5 minutes. RPM=50.

[0252] When the composition came out of the extruder, it was placed on a copper metal collector and then pressed at 230° C. and 200 bar, whereby a SiC electrode was obtained.

[0253] Table 1

[0254]

[0255] (*)Compared

[0256] n / p = not performed

[0257] Adhesion was measured and the results are provided in Table 5.

[0258] The composition of Comparative Example 1C(*) contained the medium (L-1) in an amount outside the required range. The composition could not be extruded.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
boiling pointaaaaaaaaaa
melting pointaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The present invention pertains to an electrode-forming composition, to use of said electrode-forming composition in a process for the manufacture of an electrode, to said electrode and to an electrochemical device comprising said electrode.

Description

Cross References to Related Applications [0001] This application claims priority to European Application No. 19172469.9 filed on May 3, 2019 and European Application No. 20155055.5 filed on February 3, 2020, the entire contents of which applications are incorporated by reference into this application for all purposes . technical field [0002] The present invention relates to an electrode-forming composition, to the use of the electrode-forming composition in a method for manufacturing an electrode, to the electrode and to an electrochemical device comprising the electrode. Background technique [0003] To date, the techniques used to fabricate either positive or negative electrodes have involved the use of organic solvents such as N-methyl-2-pyrrolidone (also known as "NMP") for dissolving fluoropolymer binders and bringing them together with the electroactive material. and all other suitable ingredients to produce a paste that is applied to metal current collectors. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/04H01M4/13H01M4/139
CPCH01M4/13H01M4/139H01M4/62H01M4/623H01M4/625H01M2004/027H01M2004/028H01M4/0404H01M4/0411H01M10/0525H01M4/1393
Inventor J·A·阿布斯勒梅M·比索A·弗拉基D·巴特加佐雷F·里贝拉勒
Owner SOLVAY SA