Graphene modified diaphragm of lithium battery as well as preparation method and application of graphene modified diaphragm

• Main Authors: LING CHENDONG, HE MINHUA
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention discloses a lithium battery graphene modified diaphragm as well as a preparation method and application thereof, and belongs to the technical field of lithium ion battery materials. The lithium battery graphene modified diaphragm comprises a diaphragm base membrane and a diaphragm coating, and the diaphragm coating is prepared from the following raw materials in parts by weight: 10-20 parts of graphene, 1-3 parts of ferric nickel zinc oxide, 0.5-1 part of methyl methacrylate, 3-8 parts of 3-isopropyl-dimethyl benzyl isocyanate, 0.5-1.5 parts of nano calcium carbonate, 0.1-0.5 part of AEO-7, 0.1-0.5 part of 1, 3-dimethyl-3, 4, 5, 6-tetramethyl-1, 3-pentanediol monoisobutyrate, 0.1-0.5 part of sodium hydroxide, 0.1-0.5 part of sodium hydroxide, 0.1-0.5 part of sodium hydroxide, 0.1-0.5 part of sodium hydroxide, 0.1-0.5 part of sodium hydroxide, 0.1-0.5 part of sodium hydroxide, 0.1-0.5 part of sodium hydroxide, 0.1-0.5 part of sodium hydroxide, 0.1- 0.1 to 0.5 part of 2, 6-tetrahydro-2-pyrimidone