Solder sealed solid electrolyte cell housed within a ceramic frame and the method for producing it

• US 5,362,579 A
• Filed: 10/20/1993
• Issued: 11/08/1994
• Est. Priority Date: 11/27/1992
• Status: Expired due to Fees

• Current Assignee: Gould Electronics Incorporated (Eternal Materials Co., Ltd.)
• Original Assignee: Gould Electronics Incorporated (Eternal Materials Co., Ltd.)
• Inventors: Rossoll, Mary P., Revilock, Alan J.
• Primary Examiner(s): Skapars, Anthony
• Application Number:
  US08/139,422
• Time in Patent Office: 384 Days
• Field of Search: 429/162, 429/163, 429/178, 429/211, 429/192, 429/194, 429/224
• US Class Current: 429/162
• CPC Class Codes: H01M 50/186 characterised by the disposition of the sealing members
• CPC Class Codes: H01M 50/191 Inorganic material
• CPC Class Codes: H01M 6/12 with flat electrodes
• CPC Class Codes: H01M 6/181 with polymeric electrolytes
• CPC Class Codes: Y10T 29/4911 including sealing
• CPC Class Codes: Y10T 29/49115 including coating or impregnating

Abstract

A solid electrolyte cell and method for producing it in which the cell components are assembled within a ceramic frame which is closed on the top by a first terminal of the cell using a solder seal and closed on the bottom by a second terminal of the cell using a solder seal and said second terminal having the opposite polarity to that of the first terminal.

Claims

1. A cell comprising a ceramic frame defining an opening and having a top surface and a bottom surface;

a first conductive terminal sheet solder secured to and closing the bottom surface of the frame;

a second conductive terminal sheet solder secured to and closing the top surface of the frame; and

an anode, an electrolyte and cathode assembly within the opening of the frame and arranged so that the anode makes electrical contact with one conductive terminal sheet and the cathode makes electrical contact with the other conductive terminal sheet.

2. The cell of claim 1 wherein the anode is lithium, and the cathode is MnO₂.

3. The cell of claim 1 wherein the first conductive terminal sheet and second conductive terminal sheet are copper.

4. The cell of claim 1 wherein one of the conductive terminal sheets has an extended tab that extends over and onto the other conductive terminal sheet and said tab is insulated from the other conductive terminal sheet so that both terminals are on the same side of the cell.