Nonaqueous cell
CA 1315842 C · Owner: Brand, Laura Estelle · Inventors: Chi, Ignacio; Vyas, Brijesh; Granstaff, Shelie Monroe, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a nonaqueous cell. The cell is comprised of a lithium negative electrode, a positive electrode which is comprised of active material and electrolyte. The electrolyte is comprised of a solvent and current carrying species. The solvent is comprised of at least 15 mole percent ethylene carbonate at least 15 mole, percent propylene carbonate and at least 15 mole percent polyethylene glycol dialkyl ether. These three materials combine to provide a cell which has an increased fire hazard safety. Additionally the addition of polyether to the propylene carbonate/ethylene carbonate mixture increases the cycle life of the cell.
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
- Granted April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
- 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.