Electric storage battery construction and method of manufacture
First Claim
1. A method of forming a battery, comprising:
- arranging battery components such thatan electrode is in electrical communication with a pin,an electrode is electrically insulated from the pin,a tab provides electrical communication between an end cap and the electrode that is electrically isolated from the pin,the electrodes are positioned in a case and are wound around the pin, andthe end cap is configured to close an opening in the case;
transporting electrolyte through the opening and into the case while resting the end cap on the case with an edge of the case between a portion of the tab and a portion of the end cap and the tab extends from the electrodes in the case over an edge of the case, the edge defining the opening; and
sealing the opening with the end cap.
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Accused Products
Abstract
An electric storage battery and method of manufacture thereof characterized by a feedthrough pin which is internally directly physically and electrically connected to an inner end of a positive electrode substrate. A C-shaped mandrel extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case and in the final product constitutes one of the battery terminals with the battery case comprising the other terminal. Active material is removed from both sides of the outer end of the negative electrode in the jellyroll to allow room for adhesive tape to secure the jellyroll. The electrolyte is injected through the open end of the case after the endcap is welded to the negative electrode but before sealing the endcap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.
151 Citations
29 Claims
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1. A method of forming a battery, comprising:
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arranging battery components such that an electrode is in electrical communication with a pin, an electrode is electrically insulated from the pin, a tab provides electrical communication between an end cap and the electrode that is electrically isolated from the pin, the electrodes are positioned in a case and are wound around the pin, and the end cap is configured to close an opening in the case; transporting electrolyte through the opening and into the case while resting the end cap on the case with an edge of the case between a portion of the tab and a portion of the end cap and the tab extends from the electrodes in the case over an edge of the case, the edge defining the opening; and sealing the opening with the end cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification