Composite emulsion type lithium battery ceramic diaphragm adhesive as well as preparation method and application thereof

• Main Authors: ZHUANG AO, WANG YOUZHI, ZHOU KAI, HUANG QIANG
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

The invention relates to the field of lithium battery ceramic diaphragm adhesives, and discloses a composite emulsion type lithium battery ceramic diaphragm adhesive as well as a preparation method and application thereof. Water-soluble and water-insoluble monomers, a reactive emulsifier, an initiator and the like are added in batches for polymerization to obtain a composite system product of a conventional emulsion and a microemulsion, and the particle size distribution of the composite system product has the characteristic of bimodal distribution and is respectively within the range of less than 100nm and the range of 100nm-1000nm. Reaction raw materials comprise the following components: 5-15 parts of a water-soluble monomer; 10 to 30 parts of a non-water-soluble monomer; 0.5-2 parts of a reactive emulsifier; 0.1 to 0.5 part of a co-emulsifier; 0.2 to 1 part of an initiator; and 70 to 80 parts of pure water. The preparation process of the product is simple in technology and low in energy consumption. The a