Alkali metal polysilica gel electrolyte lead-acid battery and method for making the same
CA 1314588 C · Owner: C & D Charter Power Systems, Inc. · Inventors: Noveske, Terrence M.; Misra, Sudhan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for producing a lead-acid battery having a thixotropic gel electrolyte, comprising combining an aqueous colloidal dispersion of alkali metal polysilica with sulfuric acid while introducing the combination into a lead-acid battery precursor. A lead-acid battery comprising a battery case positive, and negative metal plates spaced one from another within said case and a thixotropic gel electrolyte within said case and providing electrolytic connection between said positive and negative plates, comprising sodium polysilica, sulfuric acid and water.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 16, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.