US 5,702,841 AGranted

Electrolyte venting system with tubular splash guards

AssigneeGlobe-Union Inc.

InventorsBrian J. Thomas, Gerald D. Slayton, Jerome R. Heiman, Rick Barnett

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Abstract

A battery cover for a battery casing has a plurality of electrolyte containing cells, a primary cover and a secondary cover. The primary cover has a plurality of barrels arranged along a longitudinal axis and the secondary cover has a plurality of tubular elements extending downwardly and insertable in the barrels of the primary cover. Each of the tubular elements has an inner tubular member and an outer tubular member. The outer tubular member has an axially extending cutout portion which runs from its tip to the surface of the secondary cover. The battery cover also has a plurality of baffles defining a circuitous passageway for gases which are evolved in the cells of the battery to be released to an external port located on the secondary cover.

Claims14

Dependent claims

An electrolyte venting system comprising:

a casing defining an electrolyte containing cell;
a primary cover mounted on said casing, said primary cover having a barrel corresponding to said electrolyte containing cell;
and
a secondary cover mounted on said primary cover, said secondary cover having coaxially arranged inner and outer tubular elements extending from a surface thereof, said inner tubular element having a diameter smaller than an inner diameter of said outer tubular element said tubular elements being inserted in said barrel of said primary cover, said outer tubular element having a plurality of slots formed therethrough;
wherein said primary and secondary covers define a chamber disposed around said outer tubular element and in communication with said plurality of slots, said chamber being in fluid communication with an external port, wherein gases which are generated in said electrolyte containing cell pass from said cell through said barrel and between said inner and outer tubular elements then radially outwardly through said slots in said outer tubular element into said chamber and out of said chamber through said external port.

2 more elements

A battery cover for a battery casing defining a plurality of electrolyte containing cells, comprising:

a primary cover having a plurality of barrels arranged along a longitudinal axis thereof;
and
a secondary cover having a plurality of tubular elements extending from a surface thereof, said tubular elements being insertable in said barrels of said primary cover, each of said tubular elements having an inner tubular member and an outer tubular member, said outer tubular member having a plurality of slots formed therethrough;
wherein said secondary cover includes an external port in gaseous communication with said barrels of said primary cover;
said primary cover has a first ridge portion surrounding each of said barrels and said secondary cover has a second ridge portion corresponding to each of said first ridge portions such that gaseous communication between each of said barrels and said external port is achieved through an open section in at least one of said first and second ridge portions;
said primary cover and said secondary covers being provided with additional ridges for partitioning said barrels from each other to form a plurality of compartments, wherein the longitudinal axis of the barrels is offset from the center of each compartment thereby defining a short side and a long side in each compartment;
wherein said open section in at least one of said first and second ridge portions is located adjacent to and faces the short side of each compartment;
and
wherein the additional ridges of said secondary cover have cutouts formed adjacent said short side of said compartments such that gas can communicate among said barrels and said external port through said cutouts.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/504,073Filed 19 Jul 1995
Granted: 30 Dec 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H01M 50/30
Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells:…
H01M 50/147
Primary casings; Jackets or wrappings: lids or covers
Y02E 60/10
Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation: energy storage using batteries
H01M
Batteries and fuel cells

Family

No related US applications are recorded in the indexed filing history.

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