Inverse spinel compounds as cathodes for lithium batteries
CA 2102738 C · Owner: E-One Moli Energy (Canada) Limited · Inventors: Fey, George T.; Dahn, Jeffrey Raymond
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High voltage lithium batteries can be made using lithium transition metal oxides having an inverse spinel structure as a cathode material. In particular, these inverse spinel compounds can be suitable for use in lithium ion batteries. Along with high operating voltage, such batteries can exhibit reasonable capacity rate capability, and reversibility.
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 November 9, 1993 and granted January 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2015.
- 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.