Conductive ceramic substrate for batteries

• US 5,126,218 A
• Filed: 10/02/1990
• Issued: 06/30/1992
• Est. Priority Date: 04/23/1985
• Status: Expired due to Term

• Current Assignee: Atraverda Limited (Ebonex Limited)
• Original Assignee: Atraverda Limited (Ebonex Limited)
• Inventors: Clarke, Robert L.
• Primary Examiner(s): Niebling, John F.
• Assistant Examiner(s): MARQUIS, STEVEN
• Application Number:
  US07/593,327
• Time in Patent Office: 637 Days
• Field of Search: 429/228, 429/233, 429/245
• US Class Current: 429/245
• CPC Class Codes: H01M 10/18 with bipolar electrodes
• CPC Class Codes: H01M 4/14 Electrodes for lead-acid accumulators
• CPC Class Codes: H01M 4/68 for use in lead-acid accumulators
• CPC Class Codes: H01M 4/73 for lead-acid accumulators, e.g. frame plates
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An improved substrate for battery sustems is disclosed. The substrate is a conductive ceramic formed from a sub-stiochemetric titanium dioxide material. The material preferrably is TiOx, where x is in the region of 1.55 to 1.95. Methods of manufacture are disclosed as well as configurations for battery elements.

Claims

1. A secondary lead-acid battery comprising an active material support member, said support member including a titanium suboxide electrode material having the formula TiO_x, where x=1.55 to 1.95, an active material paste comprising lead oxide, lead sulfate and sulfuric acid in contact with said titanium suboxide electrode, and an electrolyte comprising sulfuric acid.

2. A battery as in claim 1 wherein said titanium suboxide electrode material is in the form of a solid ceramic.

3. A battery as in claim 1 wherein said titanium oxide is in the form of a powder.

4. A battery as in claim 1 wherein said electrode material is in the form of a conductive paint.

5. A battery as in claim 1 wherein said electrode material is in the form of a conductive paint.

6. A battery as in claim 2 wherein said support member comprises a plastic wall and wherein said titanium suboxide electrode material is in the form of pins passing through said wall such that said pins are exposed on each end.

7. A battery as in claim 2 wherein said support member consists of said titanium oxide electrode material.

8. A battery as in claim 7 wherein said titanium oxide is in the form of a plate.

9. A battery as in claim 1 further comprising a case for containing said support and electrolyte, wherein said case is sealed.