Negative electrode material for non-aqueous liquid electrolyte secondary cell, method for producing same and non-aqueous liquid electrolyte secondary cell employing same
CA 2189258 C · Owner: Akashi, Hiroyuki · Inventors: Yamada, Shinichiro; Akashi, Hiroyuki; Tanaka, Kohichi
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A negative electrode material for a secondary cell for anon-aqueous liquid electrolyte for realizing a high charging/discharging capacity and a high discharging efficiency a method for producing such material and a non-aqueous liquid electrolyte secondary cell employing such material. The negative electrode material contains at least one carbonaceous material selected from the group consisting of coffee beans tea leaves, cane sugar, corns, fruits, straws of cereals and husks of cereals a carbonaceous material derived from a plant-origin high molecular material containing a sum total of 0.2 to 20 wt% of metal elements phosphorus and sulphur calculated as elements or a carbonaceous …
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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.
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- Filed March 6, 1996 and granted May 31, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2018.
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