Energy storage device
AssigneeMotorola, Inc.
InventorsMichael Fulcher, Paul Gies, Steven L. Hassenzahl
Life of this patent
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Abstract
A metal foil laminate package for an electrochemical cell has a multilayered structure (32, 34) comprising a metal foil (40) sandwiched between layers of a thermoplastic (38) and a heat-sealable polymer (42). An electrically conducting tab (28) extends from the cell and has a layer of insulative tape (29) disposed on both sides of the tab. Apertures (50,52,60,62) formed through the various layers of the package expose both sides of the tab, providing sites for subsequent welding of the tab to external circuitry.
Claims12
An electrochemical cell including an anode, a cathode, a separator, and first and second tab members, said cell being enclosed in a metal foil laminate material, and further including an insulating tape disposed between said tabs and said metal foil laminate wherein said tab members remain enclosed within an interior portion of the metal foil laminate material.
An electrochemical cell including an anode, a cathode, a separator, and first and second tab members, said cell being enclosed in a metal foil laminate material, and further including an insulating tape disposed between said tabs and said metal foil laminate further comprising first and second apertures, the first aperture extending through said metal foil laminate material, the second aperture positioned below the first aperture and extending through said insulating tape.
An electrochemical cell enclosed in a metal foil laminate material, comprising:
- an anode, a cathode and a separator;
- and
- first and second tab members each having opposing upper and lower major surfaces, each major tab surface having a layer of insulating tape disposed thereon, wherein
- a portion of each major surface of each tab member remains exposed through a pair of apertures formed in the insulating tape and the metal foil laminate material.
An electrochemical cell enclosed in a metal foil laminate material, comprising:
- an anode, a cathode and a separator;
- first and second tab members each having a major tab surface;
- and
- first and second layers of insulating tape, the first layer of insulating tape disposed upon the major surface of each tab member, and the second layer of insulating tape disposed upon an outer surface of said foil laminate material, wherein
- apertures formed through the metal foil laminate material and the first and second layers of insulating tape expose a portion of each tab member.
Dependencies are inferred from the claim text.