THERMAL MANAGEMENT MULTILAYER SHEET FOR A BATTERY
Thermal management multilayer sheet, including a first heat-spreading layer, a first side of a first integrity layer disposed on a side of the first heat spreading layer, a first side of a first adhesive layer disposed on an opposite second side of the first integrity layer, a second integrity layer, and a second heat-spreading layer, wherein a first side of the second integrity layer is disposed on an opposite second side of the adhesive layer, and the second heat-spreading layer is disposed on an opposite second side of the second integrity layer; or a first side of the second heat-spreading layer is disposed on an opposite second side of the first adhesive layer, a first side of the second integrity layer is disposed on an opposite second side of the second heat-spreading layer, and a second adhesive layer is disposed on an opposite second side of the second integrity layer.
1 . A thermal management multilayer sheet, comprising
a first heat-spreading layer,
a first side of a first integrity layer disposed on a side of the first heat spreading layer,
a first side of a first adhesive layer disposed on an opposite second side of the first integrity layer,
a second integrity layer, and
a second heat-spreading layer,
wherein
a first side of the second integrity layer is disposed on an opposite second side of the adhesive layer, and
the second heat-spreading layer is disposed on an opposite second side of the second integrity layer,
wherein the first adhesive layer is a single layer or multi-layer adhesive; or
a first side of the second heat-spreading layer is disposed on an opposite second side of the first adhesive layer,
a first side of the second integrity layer is disposed on an opposite second side of the second heat-spreading layer, and
a second adhesive layer is disposed on an opposite second side of the second integrity layer.
2 . The thermal management multilayer sheet of claim 1 , wherein the first and second heat-spreading layers each independently have a thickness of 12.7 to 508 micrometers, and each independently comprise copper, aluminum, silver, a copper alloy, an aluminum alloy, a silver alloy, boron nitride, aluminum nitride, silicon carbide, beryllium oxide, carbon fibers, carbon nanotubes, graphene, graphite, or a combination thereof.
3 . The thermal management multilayer sheet of claim 1 , wherein the first and second integrity layer each independently has a thickness of 25.4 to 508 μm.
4 . The thermal management multilayer sheet of claim 1 , wherein the adhesive layer(s) comprise a polyester adhesive, a polyvinyl fluoride adhesive, an acrylic or methacrylic adhesive, a silicone adhesive, or a combination thereof.
5 . The thermal management multilayer sheet of claim 1 , wherein the adhesive layer(s) further comprise a filler, such as aerogel fillers, glass microballoons, gas-filled hollow polymer microspheres, boron nitride, aluminum nitride, mica, talc, carbon nanotubes, graphite, or a combination thereof.
6 . The thermal management multilayer sheet of claim 1 , wherein at least a portion of the exposed outer edges of the thermal management multilayer sheet comprise a composition that pulls heat away from the body of the composite, such as a ceramic, a high heat capacity wax, a phase change material, or a combination thereof.
7 . An assembly for a battery comprising
at least two electrochemical cells, and
the thermal management multilayer sheet of claim 1 .
8 . The assembly for a battery of claim 7 , wherein the thermal management multilayer sheet is between the at least two electrochemical cells.
9 . An assembly for a battery comprising
at least two electrochemical cells; and
a thermal management multilayer sheet,
wherein the thermal management multilayer sheet comprises
a first heat-spreading layer,
a first side of a first integrity layer disposed on a side of the first heat spreading layer, and
an adhesive layer disposed on an opposite second side of the first integrity layer.
10 . The assembly for a battery of claim 9 , wherein the first heat-spreading layer has a thickness of 12.7 to 508 micrometers, and comprises copper, aluminum, silver, a copper alloy, an aluminum alloy, a silver alloy, boron nitride, aluminum nitride, silicon carbide, beryllium oxide, carbon fibers, carbon nanotubes, graphene, graphite, or a combination thereof.
11 . The assembly for a battery of claim 9 , wherein the integrity layer has a thickness of 25.4 to 508 μm.
12 . The assembly for a battery of claim 9 , wherein the adhesive layer comprises a polyester adhesive, a polyvinyl fluoride adhesive, an acrylic or methacrylic adhesive, a silicone adhesive, or a combination thereof.
13 . The assembly for a battery of claim 9 , wherein at least a portion of the exposed outer edges of the thermal management multilayer sheet comprise a composition that pulls heat away from the body of the composite, such as a ceramic, a high heat capacity wax, a phase change material, or a combination thereof.
14 . The assembly for a battery of claim 9 , wherein the thermal management multilayer sheet is between the at least two electrochemical cells.
15 . The assembly for a battery of claim 9 , comprising two to 10 of the thermal management multilayer sheets.
16 . The assembly for a battery of claim 9 , wherein the electrochemical cells are lithium-ion cells.
17 . The assembly for a battery of claim 9 , wherein the electrochemical cells are prismatic cells, pouch cells, or cylindrical cells.
18 . The assembly for a battery of claim 9 , wherein the electrochemical cell is a pouch cell, and the thermal management multilayer sheet is disposed on and/or adhered to the interior, exterior or both of the flexible housing of the pouch cell.
19 . A battery comprising
the assembly for a battery of claim 9 .
20 . The battery of claim 19 , further comprising
a housing at least partially enclosing the assembly for a battery.