MACHINING METHOD FOR POSITIVE AND NEGATIVE POLE PIECES OF LITHIUM BATTERY

The present invention relates to a machining method for positive and negative pole pieces of a lithium battery. All raw materials in the positive and negative poles of the lithium battery are as follows in parts by mass: 80-100 parts of an electrode active material, 60-80 parts of a solvent, 5-10 pa...

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Bibliographic Details
Main Authors WENKANG LI, ZHE ZONG, XIANFU SUN, SHENGHUI LU
Format Patent
LanguageEnglish
Published 03.10.2023
Subjects
BASIC ELECTRIC ELEMENTS
CUTTING
CUTTING-OUT
DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING
ELECTRICITY
HAND CUTTING TOOLS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORATING
PERFORMING OPERATIONS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
PUNCHING
PUNCHING METAL
SEVERING
SEVERING BY MEANS OTHER THAN CUTTING
STAMPING-OUT
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:The present invention relates to a machining method for positive and negative pole pieces of a lithium battery. All raw materials in the positive and negative poles of the lithium battery are as follows in parts by mass: 80-100 parts of an electrode active material, 60-80 parts of a solvent, 5-10 parts of a binder and 1-4 parts of a conductive agent. Preparation of electrode slurry: mixing the electrode active material, the solvent, the binder and the conductive agent together, and performing full stirring and dispersion to form slurry, coating: uniformly coating a current collector with the slurry prepared in the first step, and drying the solvent, and blanking of pole pieces: blanking, by a blanking device, the pole pieces prepared in the second step into a specified size and shape.
Bibliography:Application Number: NL20232034063