Gm Global Technolgoy Operations, Inc.

Renard E Mix

George W Brutchen

Tony E Key

Robert L Galyen

Stephen T Crisler

A corrosion- and vibration-resistant battery terminal including a connector portion comprising a tin-coated, creep-resistant metal blade having a lead collar embedding one end thereof and receiving a battery terminal post therein.

Battery terminal

In this invention, lead based battery terminal units are molded in a fluid tight manner into the main body of a polypropylene battery case so that only the outer ends of the terminal units are external to the case. The terminal units have elongated straps slotted to receive the projecting lugs integral with positive and negative lead based electrode plates, which are interleaved with one another and with glass mat separators. After the plates and separators are installed and the extending electrode plate lugs appropriately fitted in the slots of the straps, flux and glass beads are inserted in the void areas in a strap-lug amalgamation zone. The case is subsequently closed by a polypropylene cover plate which is heat sealed thereto to form a substantially water tight assembly. The closed case is partially inserted in a tank containing a level of circulating cooling water. With the case being cooled by the water a low voltage magnetic induction welding head assembly mounted within the tank can be electrically energized to provide a high frequency welding field that heats the strap and the lugs so that the lugs and strap metals fuse together. The battery is subsequently completed by the addition of electrolyte.

Storage battery and method of connecting case sealed terminals to

In an electric storage battery having cell elements including compressed fibrous interelectrode separators, a retainer plate engaging the walls of the battery container for holding the cell element under compression.

Battery having a retainer plate for holding the cell elements

Method of enveloping a battery plate in a heat-fusible fibrous separator material (e.g., fibrous glass mat) including the step of tacking the mat to itself by means of an electric arc.

Method of enveloping battery plates

Method and apparatus for joining lead battery parts (e.g., plate lugs, intercell connectors, terminals, etc.) together via a low resistance electrical coupling wherein substantially oxide-free, arc-melted, superheated molten lead is cast into a cavity between the parts. The parts are shielded from the arc while being bathed in a non-oxidizing atmosphere which is preferably formed from an ionizable, non-oxidizing gas heated by the lead-melting arc and spewed onto the parts along with the molten lead to provide additional heat thereto.

Battery assembly process

A lead acid storage battery and method of making same wherein a plurality of plate lugs are welded to a plate strap while a bed of insulating particulates (e.g., glass beads) at the roots of the lugs underlie the strap during welding to insulate the battery case from heat and prevent molten lead from entering the container.

Battery construction and method of connecting terminals to electrodes

Filling a mat-immobilized-electrolyte battery with electrolyte by injecting the electrolyte into the battery container beneath a galvanic cell element preplaced therein such that the electrolyte rises upwardly through the element.

Filling mat-immobilized-electrolyte batteries

A laminated metal-polymer support for the active material of an electric storage battery and method of making same. Anchoring tabs punched from a thin metal sheet project into openings between the grid wires of a polymer grid work and are pressed into engagement with the adjacent grid wires to secure the polymer grid work to metal sheet. Porous polymer grid works are particularly useful with deep discharge Pb-acid batteries.

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Yorktown, IN, United States of America

Renard E Mix