Nowadays, household hybrid electric vehicles, electric buses, patrol electric vehicles, etc. have long been widely used in various fields. New energy electric vehicles are a mainstream development trend to solve energy, environment, urban transportation and other problems, and are also a major direction for the development of the automobile manufacturing industry in the future. A large amount of materials are needed in the battery system of new energy vehicles to realize the battery cell grouping. The requirements for each material are different, which can basically be divided into structural adhesive materials, thermal conductive materials, insulating materials, thermal insulation materials and sealing materials.
The power battery is the "heart" of new energy vehicles, and the adhesive is the "muscular membrane tissue" that realizes the lasting power of the "heart". A good adhesive is crucial to the safety of new energy vehicles such as anti-collision and shockproof, flame retardant, thermal conductivity, waterproof and other aspects. The four major functions of adhesives on power batteries:
1. Provide protection for power batteries;
2. Realize safe and reliable lightweight design;
3. Thermal management;
4. Help batteries cope with more complex usage environments.
Lithium battery tape refers to a pressure-sensitive tape used for electrode winding, pole piece protection and core termination in the intermediate production process of lithium battery cells (winding/lamination, shell welding and sealing, etc.). Its main function is to insulate and fix lithium batteries. The development of electrical tapes accompanies the development of lithium batteries. Lithium battery tapes are classified by use: termination tape, PACK tape, protective film tape, pole ear tape, high temperature tape, fixed tape, removable tape, double-sided tape, etc.
Power battery tape is a battery tape that uses PET film as the base material and is coated with non-silicone pressure-sensitive adhesive on the PET film. It is used for the shell of the soft-package power battery of electric vehicles, the battery cell set in the shell, the top cover of the cover shell, the top surface of the battery cell, the two sides and the bottom surface.
The characteristics of lithium battery tape are mainly determined by factors such as base material, adhesive and use, so lithium battery tape is generally classified according to base material, adhesive and use. There are many types of lithium battery tapes. Manufacturers mostly develop and produce lithium battery tapes according to customer requirements for the use of materials. Among them, the composition of the adhesive determines the characteristics and uses of lithium battery tapes. Commonly used adhesives include acrylic adhesives, rubber adhesives, etc.
