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US 8,945,740 B2Granted
Vent for electrochemical cell
AssigneeJohnson Controls - SAFT Advanced Power Solutions LLC
InventorsJason D. Fuhr, Wataru Tsutsui, Gary P. Houchin-Miller, Christopher M. Bonin
Life of this patent
Estimating the term…
Abstract
An electrochemical cell includes a housing having a first end and a vent located at the first end that is configured to deploy from the housing to allow the expulsion of gases from within the cell. The electrochemical cell also includes at least one projection extending outward from the first end adjacent the vent. The at least one projection is configured to prevent accidental deployment of the vent.
Claims23
An electrochemical cell comprising:
- a housing having a first end and a second end;
- a vent defined by a peripheral vent groove located on an exterior surface of the first end and extending along an entire periphery of the first end, wherein the peripheral vent groove is configured to fracture in response to a given pressure within the housing so as to facilitate deployment of the vent outward and away from the exterior surface of the first end to allow the expulsion of gases from within the cell;
- and at least one projection extending outward from the first end of the housing, immediately adjacent and outside the peripheral vent groove along the periphery of the first end, wherein the at least one projection is configured to prevent accidental fracture of the peripheral vent groove.
An electrochemical cell comprising:
- a housing;
- a peripheral vent groove located on a first end of the housing and extending along an entire periphery of the first end, the peripheral vent groove configured to fracture in response to a given pressure within the housing so as to separate a vent from the first end of the housing to allow gases from within the cell to exit the cell, wherein the vent is located on an exterior surface of the first end of the housing and configured to be separated outward and away from the exterior surface of the first end;
- and at least one projection extending outward from the first end of the housing, immediately adjacent to and partially surrounding at least a portion of the peripheral vent groove, wherein the at least one projection is configured to prevent accidental fracture of the peripheral vent groove.
Dependencies are inferred from the claim text.