Adhesive material and electrochemical apparatus containing same
AssigneeNingde Amperex Technology Limited
InventorKewen Hu
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Abstract
An adhesive material includes an adhesive film, where the adhesive film includes a bonding layer and a first functional layer. The first functional layer includes a styrene-isoprene-styrene rubber and an additive, where the additive includes a wax or a polymer surfactant. With the first functional layer having the styrene-isoprene-styrene rubber and the additive provided, the adhesive material is capable of adjusting bonding strengths on both surfaces of the adhesive film through heat treatment and/or pressure treatment, and avoiding permeation and/or shifting between layers in the adhesive film, thereby improving the safety performance of the electrochemical apparatus.
Claims18
An adhesive material, comprising an adhesive film, the adhesive film comprising a bonding layer and a first functional layer, wherein the first functional layer comprises a styrene-isoprene-styrene rubber and an additive, and the additive comprises a wax or a polymer surfactant;
- wherein the adhesive film is a substrate-free adhesive film;
- and
- wherein a mass percentage of the additive is from 0.5% to 5.0% based on a total mass of the first functional layer.
Dependencies are inferred from the claim text.