Housing for a sealed electrochemical battery cell
First Claim
Patent Images
1. An electrochemical cell, comprising:
- a cylindrical container having a closed bottom and an open top end that is closed by a collector assembly;
an electrode assembly disposed in the container, the electrode assembly comprising a positive electrode, a negative electrode and a separator disposed between the electrodes, and an electrolyte;
a gasket positioned between conductive components of the collector assembly and the container;
the collector assembly including a retainer, a contact terminal and a contact spring electrically connected with the contact terminal; and
the contact spring defining an opening, contact spring further including an axially extending wall exerting radial compression of the collector assembly with a portion of the gasket, the contact spring having a peripheral flange extending radially outward from the axially extending wall and exerting axial compression of the collector assembly with a portion of the gasket, the contact spring having a tab electrically connected to the a current collector in the electrode assembly.
7 Assignments
0 Petitions
Accused Products
Abstract
An electrochemical cell with a collector assembly for sealing the open end of a cell container. The collector assembly includes a retainer and a contact spring with a peripheral flange, each having a central opening therein. A pressure release vent member disposed between the retainer and the peripheral flange of the contact spring seals the openings in the retainer and contact spring under normal conditions and ruptures to release pressure from within the cell when the internal pressure exceeds a predetermined limit.
52 Citations
12 Claims
-
1. An electrochemical cell, comprising:
-
a cylindrical container having a closed bottom and an open top end that is closed by a collector assembly; an electrode assembly disposed in the container, the electrode assembly comprising a positive electrode, a negative electrode and a separator disposed between the electrodes, and an electrolyte; a gasket positioned between conductive components of the collector assembly and the container; the collector assembly including a retainer, a contact terminal and a contact spring electrically connected with the contact terminal; and the contact spring defining an opening, contact spring further including an axially extending wall exerting radial compression of the collector assembly with a portion of the gasket, the contact spring having a peripheral flange extending radially outward from the axially extending wall and exerting axial compression of the collector assembly with a portion of the gasket, the contact spring having a tab electrically connected to the a current collector in the electrode assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification