Electrochemical cell having a safety vent closure
First Claim
Patent Images
1. The invention relates to an electrochemical cell comprising:
- (a) an electrode assembly containing a first electrode and a second electrode of opposite polarity;
(b) a housing containing said electrode assembly and a means for providing a terminal for the first electrode;
(c) a cover assembly for said housing, said cover assembly comprising a cover member electrically insulated from the housing and containing at least one vent orifice defined by an extended wall of said cover extending into the housing and having a sealing member closing said vent orifice;
(d) an electrically conductive spring comprising a folded elongated member in which the surface defines at least two openings that are axially aligned and two openings of which are spaced apart to form spring means of the folded elongated member, and the extended wall forming the vent orifice of the cover projected through said openings in the folded conductive spring and making electrical contact with said cover member; and
(e) one of said first and second electrodes electrically contacting the conductive spring thereby adapting the cover as a terminal for the second electrode.
0 Assignments
0 Petitions
Accused Products
Abstract
An electrochemical cell having a vent orifice defined in the cover of the cell and a conductive spring member is employed to electrically connect one of the electrodes of the cell to the cover so as to adapt the cover as the terminal for the electrode.
-
Citations
23 Claims
-
1. The invention relates to an electrochemical cell comprising:
-
(a) an electrode assembly containing a first electrode and a second electrode of opposite polarity; (b) a housing containing said electrode assembly and a means for providing a terminal for the first electrode; (c) a cover assembly for said housing, said cover assembly comprising a cover member electrically insulated from the housing and containing at least one vent orifice defined by an extended wall of said cover extending into the housing and having a sealing member closing said vent orifice; (d) an electrically conductive spring comprising a folded elongated member in which the surface defines at least two openings that are axially aligned and two openings of which are spaced apart to form spring means of the folded elongated member, and the extended wall forming the vent orifice of the cover projected through said openings in the folded conductive spring and making electrical contact with said cover member; and (e) one of said first and second electrodes electrically contacting the conductive spring thereby adapting the cover as a terminal for the second electrode. - 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)
-
Specification