Multicomponent layered dielectric film with surface modification
AssigneePolymerplus LLC
InventorsDeepak Langhe, Michael Ponting
Life of this patent
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Abstract
A multicomponent dielectric film includes overlapping dielectric layers and outer layers that have a higher surface energy compared to the overlapping dielectric layers, the overlapping dielectric layers including at least a first polymer material, a second polymer material, and optionally a third polymer material, adjoining dielectric layers defining a generally planar interface therebetween which lies generally in an x-y plane of an x-y-z coordinate system, the interfaces between the layers delocalizing the charge build up in the layers.
Claims12
A multicomponent dielectric film comprising a stack of overlapping dielectric layers and outer layers forming the outermost layers of the multicomponent dielectric film that have a higher surface energy compared to the overlapping dielectric layers,
- the stack of overlapping dielectric layers including first dielectric layers and second dielectric layers of at least a first polymer material, a second polymer material, and optionally a third polymer material, adjoining first and second dielectric layers defining a generally planar interface therebetween which lies generally in an x-y plane of an x-y-z coordinate system, the interfaces between the layers delocalizing the charge build up in the layers allowing increased charge storage on electrodes,
- wherein the outer layers are formed from a fourth polymer material having a different composition and a higher surface energy than the first polymer material, the second polymer material, and optional third polymer material forming the stack of overlapping dielectric layers, and the fourth polymer material is selected from polypropylene, polyethylene, or polyoxymethylene, and
- wherein the multicomponent dielectric film has a surface energy of at least 40 dynes/cm2.
An energy storage device comprising a multicomponent dielectric film, the film including a stack of discrete overlapping dielectric layers and outer layers forming the outermost layers of the multicomponent dielectric film that have a higher surface energy compared to the overlapping dielectric layers,
- the stack of overlapping dielectric layers including first dielectric layers and second dielectric layers of at least a first polymer material, a second polymer material, and optionally a third polymer material, adjoining dielectric layers defining a generally planar interface therebetween which lies generally in an x-y plane of an x-y-z coordinate system, the interfaces between the layers delocalizing the charge build up in the layers allowing increased charge storage on electrodes of the device,
- wherein the outer layers are formed from a fourth polymer material having a different composition and a higher surface energy than the first polymer material, the second polymer material, and optional third polymer material forming the stack of overlapping dielectric layers, and the fourth polymer material is selected from polypropylene, polyethylene, or polyoxymethylene, and
- wherein the multicomponent dielectric film has a surface energy of at least 40 dynes/cm2.
Dependencies are inferred from the claim text.