Polymer electrolyte batteries containing a potassium salt to stabilize performance and operating life
CA 2199446 A1 · Owner: Gagnon, Rene · Inventors: Choquette, Yves; Gagnon, Rene; Armand, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a rechargeable lithium battery which has a lithium anode a lithium ion reducible cathode connected to a polymer and a polymer electrolyte. Potassium ions are introduced at the cathode or in the electrolyte or both at once, in such a way that potassium is distributed in the cathode and the electrolyte when the battery is at equilibrium. In this way during cycling, the performance of the power source in terms of energy and power.
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 March 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 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.