Method for providing a hermetically sealed coin cell
AssigneeWilson Greatbatch Technologies, Inc.
InventorsRobert S. Rubino, Hong Gan, Joseph Prinzbach, Esther S. Takeuchi
Life of this patent
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Abstract
A hermetically sealed coin cell is described. The coin cell has the opposite polarity terminals isolated from one another by a glass-to-metal seal. Glassing a conductive disc inside a ring of greater diameter and height forms this seal. The height of the ring is equivalent to the desired height of the cell. The disc acts as one cell terminal, which can be positive or negative, and the ring serves as the other terminal. In plan view, both terminals are on the same side of the cell. This allows for easy mounting and connection to an electronic circuit board, and the like.
Claims12
A method for providing an electrochemical battery, comprising the steps of:
- a) providing a ring having a surrounding ring sidewall extending to a ring upper end and a ring lower end;
- b) providing a base having a surrounding base sidewall extending to a base upper end and a base lower end;
- c) positioning the base inside the ring surrounding the base with the base upper end spaced below the ring upper end;
- d) sealing the base to the ring with a glass material;
- e) positioning a first electrode on the base upper end, the first electrode having spaced apart upper and lower first electrode sides with the first lower electrode side proximate the base upper end and the first upper electrode side spaced below the ring upper end;
- f) supporting a separator on the first upper electrode side;
- g) positioning a second, counter electrode on the separator, the second electrode having spaced apart upper and lower second electrode sides with the second upper electrode side spaced below the ring upper end;
- h) activating the first and second electrodes with an electrolyte;
- and
- i) sealing a plate to the ring upper end.
Dependencies are inferred from the claim text.