Contact arrangement for a galvanic battery
First Claim
1. Contact arrangement for a battery cell of a galvanic battery comprising(a) a positive mass layer;
- (b) a negative electrode layer;
(c) a separator layer arranged between the positive mass layer and the negative electrode layer so as to separate each from the other;
(d) a positive current collector connected to the positive mass layer;
(e) a case of an insulating material which hermetically encloses the active components of the battery cell in a vacuum;
(f) contact units to create contact through the case with the positive current collector and with the negative electrode layer, respectively, and(g) at least one additional insulation layer of a tough and adhesive material and which is limited by the case, so as to maintain the hermetic nature of the case despite the passing-through of the contact unit, wherein the additional insulation layer is at least on the negative side of the cell fitted onto the outer face of the case so that the contact unit, when passing into the case, first penetrates through the said additional insulation layer in a hermetic engagement with the additional insulation layer so as to maintain the vacuum in the cell.
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Accused Products
Abstract
Described herein is a contact arrangement for a battery cell of a galvanic battery. The battery cell comprises a positive mass layer (6, 106) and a negative electrode layer (11, 111). A separator layer (5, 105) separates the positive mass layer (6, 106) and the negative electrode layer (11, 111) from each other. A positive current collector (7, 107) is connected to the positive mass layer (6, 106). A case (1, 2, 101, 102) made of an insulating material hermetically encloses the active components of the battery cell. Contact units (12, 14, 16, 22, 23, 24, 116) create electrical contact through the case (1, 2, 101, 102) with the positive current collector (7, 107) and with the negative electrode layer (11, 111), respectively. An additional insulation layer (9, 13, 113) made of a tough and adhesive material and bounded by the case (1, 2, 101, 102) is provided so as to maintain the hermetic nature of the case despite the passing-through of a contact unit (12, 14, 16, 22, 23, 24, 116). According to the invention, the additional insulation layer (13, 113) is at least on the negative side of the cell disposed on the outer face of the case (1, 2, 101, 102) so that the contact unit (16, 23, 24, 116), when passing through the case (1, 2, 102), first penetrates through the said additional insulation layer (13, 113).
14 Citations
11 Claims
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1. Contact arrangement for a battery cell of a galvanic battery comprising
(a) a positive mass layer; -
(b) a negative electrode layer; (c) a separator layer arranged between the positive mass layer and the negative electrode layer so as to separate each from the other; (d) a positive current collector connected to the positive mass layer; (e) a case of an insulating material which hermetically encloses the active components of the battery cell in a vacuum; (f) contact units to create contact through the case with the positive current collector and with the negative electrode layer, respectively, and (g) at least one additional insulation layer of a tough and adhesive material and which is limited by the case, so as to maintain the hermetic nature of the case despite the passing-through of the contact unit, wherein the additional insulation layer is at least on the negative side of the cell fitted onto the outer face of the case so that the contact unit, when passing into the case, first penetrates through the said additional insulation layer in a hermetic engagement with the additional insulation layer so as to maintain the vacuum in the cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. An element of a flat alkaline cell comprising a plastic sheet for a cell envelope wall, a metal collector plate having its major surfaces coextensive with the flat dimensions of said cell, a metallic connector, a fused metallic bond between said plate and said connector on a central portion of a first major surface of said plate, a coating of a material which is adherent to the metal of said plate and is resistant to attack by potassium hydroxide on said first major surface of said plate coextensive with and bonded to said first major surface of said plate over essentially the entire surface surrounding said connected bond, and bonded to said plastic sheet over an area essentially coextensive and in registry with said first major surface of said plate, said sheet having a passage for said connector and said connector passing through said sheet at the central portion of said plate, whereby essentially the entire lateral extent of said coating on said plate seals against the flow of potassium hydroxide to be contained within the cell to said passage in said envelope sheet.
Specification