Electric Storage Battery Construction and Method of Manufacture
1 Assignment
0 Petitions
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.
-
Citations
76 Claims
-
1-65. -65. (canceled)
-
66. A method of constructing an electric storage battery, comprising:
-
forming an electrode assembly, the electrode assembly including a first electrode strip and a second electrode strip wound around a pin to form a spiral roll, the pin being in electrical communication with the first electrode strip, wherein forming the electrode assembly includes winding the first electrode strip and the second electrode strip around the pin while the pin extends from at least one end of the spiral roll; inserting the electrode assembly into a case such that the first electrode strip and the second electrode strip are in the case; and fastening a tab between the second electrode strip and the case. - View Dependent Claims (67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
-
Specification