Termination adhesive tape and manufacture method thereof

Abstract

The invention relates to the technical field of adhesive tapes, and particularly relates to a termination adhesive tape and a manufacture method thereof. The termination adhesive tape comprises a base tape and a glue layer located on the base tape, wherein the glue layer is an acrylic glue layer, which is composed of the following raw materials in parts by weight: 1-5 parts of butyl acrylate, 5-12 parts of vinyl acetate, 40-60 parts of ethyl acetate, 20-35 parts of iso-octyl acrylate, 0.5-2 parts of hydroxyethyl methacrylate, 1-3 parts of acrylic acid, 2-4 parts of toluene and 0.1-0.4 part of benzoyl peroxide. The manufacture method sequentially comprises the following steps: A. preparing the acrylic glue: titrating toluene-dissolved benzoyl peroxide used as an initiator to a mixed solution of butyl acrylate, vinyl acetate, ethyl acetate, iso-octyl acrylate, hydroxyethyl methacrylate and acrylic acid at the temperature of 80 DEG C, and ensuring the titration time of 2 hours and self-reaction time of 2.5 hours; and B. applying the acrylic glue on the base tape, sequentially drying, cooling and coiling. The termination adhesive tape provided by the invention has the advantages of low cost, beautiful appearance, simple manufacture process and good electrolyte resistance.

Description

Technical field: [0001] The invention relates to the technical field of adhesive tapes, in particular to a termination adhesive tape and a manufacturing method thereof. Background technique: [0002] Lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices such as mobile phones, digital cameras, and laptop computers, but also widely used in electric vehicles, In terms of large and medium-sized electric equipment such as electric bicycles and electric tools, the safety requirements for lithium-ion batteries are getting higher and higher. At present, in the production process of lithium-ion batteries, ordinary adhesive tape is used to fix and insulate the tabs and termination parts of lithium-ion batteries. The adhesive tape includes: a base tape and a rubber-type glue layer on the base tape. The adhesive tape has the following disadvantages Disadvanta...

AI Technical Summary

Problems solved by technology

At present, in the production process of lithium-ion batteries, ordinary adhesive tape is used to fix and insulate the tabs and termination parts of lithium-ion batteries. The adhesive tape includes: a base tape and a rubber-type glue layer on the base tape. The adhesive tape has the following disadvantages Disadvantages: high cost, complex manufacturing process, the process has three procedures: primer, back coating, top coating; degumming, poor adhesion, discoloration, and corrosion after three days of immersion in the electrolyte, which cannot fully meet the needs of lithium batteries. Application requirements of battery manufacturers

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