Battery comprising lithium vanadium oxide as active material
CA 2037047 A1 · Owner: Gilmour, Alexander · Inventors: Neat, Robin J.; Gilmour, Alexander; Rance, Marion R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
57) Abstract, A battery (1) which includes at least one electrochemical cell having: a negative electrode (4); an electrolyte; and a positive electrode (5). The positive electrode has an active material which includes or comprises Lithium Vanadium Oxide having a stoichiometry or LiVOx where 2.5 ? x ? 3. A method of manufacturing the active material by decomposition of a Manganese salt and Ammonium Vanadate (NH4VO3) is also disclosed.
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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
- Filed July 17, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 17, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2012.
- 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.