Lithium secondary cell with high charge and discharge rate capability
CA 2851994 C · Owner: A123 Systems, Inc. · Inventors: Riley, Gilbert N. Jr; Gozdz, Antoni S.; Chiang, Yet-Ming
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lithium secondary cell comprising a high capacity lithium containing positive electrode in electronic , contact with a positive electrode current collector electronically connected with an external circuit, a high , capacity negative electrode in electronic contact with a negative electrode current collector electronically , connected with the external circuit a separator positioned between and in ionic contact with the positive , and negative electrode and an electrolyte in ionic contact with the positive and negative electrode. The , high capacity lithium secondary cell has a total area specific impedance for the cell, where the area , specific impedance of the positive electrode …
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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 February 7, 2005 and granted May 15, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.