Adhesive paper and electrochemical apparatus and electronic apparatus containing such adhesive paper
AssigneeNingde Amperex Technology Limited
InventorKewen Hu
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Abstract
An adhesive paper includes an adhesive layer and a substrate layer. The adhesive layer includes polyolefin and/or modified polyolefin. Dissolved substance of the adhesive paper in a lithium salt-free electrolyte, as tested by cyclic voltammetry, shows zero reaction peaks at a scanning voltage of 4.5 V and an oxidation peak intensity less than 1×10−7 A at a scanning voltage from 3 V to 4.5 V. The adhesive paper provided in this application has good electrolyte resistance, high adhesion force, and low swelling degree, thereby contributing to improved safety performance and prolonged service life of the electrochemical apparatus.
Claims20
An adhesive paper, comprising a substrate layer and an adhesive layer provided on one surface of the substrate layer, the adhesive layer comprising polyolefin and/or modified polyolefin;
- wherein dissolved substance of the adhesive paper in a lithium salt-free electrolyte, as tested by cyclic voltammetry, shows zero reaction peaks at a scanning voltage of 4.5 V and an oxidation peak intensity less than 1×10−7 A at a scanning voltage from 3 V to 4.5 V.
An electrochemical apparatus, comprising an adhesive paper, the adhesive paper comprises a substrate layer and an adhesive layer provided on one surface of the substrate layer, the adhesive layer comprising polyolefin and/or modified polyolefin;
- wherein dissolved substance of the adhesive paper in a lithium salt-free electrolyte, as tested by cyclic voltammetry, shows zero reaction peaks at a scanning voltage of 4.5 V and an oxidation peak intensity less than 1×10−7 A at a scanning voltage from 3 V to 4.5 V.
Dependencies are inferred from the claim text.