Nonflammable/self-extinguishing electrolytes for batteries
CA 2255780 A1 · Owner: Ventura, Susanna C. · Inventors: Smedley, Stuart; Narang, Subhash C.; Koolpe, Gary
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel fire-retardant electrolyte compositions are provided. These compositions comprise a lithium salt dissolved in a fire-retardant solvent selected from the group consisting of phosphates cyclophosphazenes, silanes, fluorinated carbonates fluorinated, polyethers and mixtures thereof. The electrolyte composition optionally contains a CO2-generating compound. Also provided are fire-retardant batteries and fire-retardant conductive films formulated with such compositions as well as methods of manufacturing such films.
Read the whole patent
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
- Filed May 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2019.
- 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.