Abstract
A separator includes a substrate layer, a first adhesive layer, and a second adhesive layer stacked sequentially. Both the first adhesive layer and the second adhesive layer are disposed on at least one side of the substrate layer. Both the first adhesive layer and the second adhesive layer extend from a first end of the separator toward a second end of the separator opposite to the first end of the separator. The first adhesive layer includes first adhesive particles. The second adhesive layer includes second adhesive particles. A particle diameter of each first adhesive particle is D1 μm, and a particle diameter of each second adhesive particle is D2 μm, D2>D1.
Full Text
What is claimed is:
A separator includes a substrate layer, a first adhesive layer, and a second adhesive layer stacked sequentially. Both the first adhesive layer and the second adhesive layer are disposed on at least one side of the substrate layer. Both the first adhesive layer and the second adhesive layer extend from a first end of the separator toward a second end of the separator opposite to the first end of the separator. The first adhesive layer includes first adhesive particles. The second adhesive layer includes second adhesive particles. A particle diameter of each first adhesive particle is D1 μm, and a particle diameter of each second adhesive particle is D2 μm, D2>D1.
Timeline
Filed
03/26/2026Published
07/30/2026Granted
Not AvailableIPC Codes(8)
H01M 50/42:Acrylic resins
H01M 10/0525:Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0587:of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators