Access port for use in electrochemical cells
AssigneeMedtronic, Inc.
InventorsKurt Casby, David Haas, Hailiang Zhao
Life of this patent
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Abstract
An electrochemical cell, comprising: an encasement including a case having a bottom and a sidewall terminating at an open top and a cover disposed over the case open top and hermetically sealed to the case, the encasement defining an interior space for containing cell components; and an access port defining at least one lumen extending through any of the case bottom, the case sidewall or the cover for receiving a liquid electrolyte, the access port being sealed closed after receiving the liquid electrolyte using a fusion welding method in the presence of the electrolyte.
Claims19
An electrochemical cell, comprising:
- an encasement including a case having a bottom and a sidewall terminating at an open top and a cover disposed over the case open top and hermetically sealed to the case, the encasement defining an interior space for containing cell components;
- and
- an access port defining at least one lumen extending through any of the case bottom, the case sidewall or the cover for receiving a liquid electrolyte, the access port being sealed closed after receiving the liquid electrolyte using a fusion welding method in the presence of the electrolyte.
A method for manufacturing an electrochemical cell, comprising:
- forming an access port including an exterior aperture and an interior aperture and a side defining a lumen extending between the exterior aperture and the interior aperture, through a material forming an encasement of the electrochemical cell;
- filling the electrochemical cell with a liquid electrolyte through the access port;
- and
- welding the access port closed in the presence of the electrolyte.
Dependencies are inferred from the claim text.