Non-aqueous secondary battery and separator used therefor
CA 2496513 A1 · Owner: Honmoto, Hiroyuki · Inventors: Nishikawa, Satoshi; Daido, Takahiro; Honmoto, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-aqueous secondary battery-use separator comprising a porous film enclosing a net-form support and consisting of organic polymer that swells in an electrolyte to hold it, wherein the net-form support has an average film thickness of 10-30 µm, METSUKE of 6-20 g/m2 a Gurley value of up to 10 , sec/100cc a MacMillan number (25~C) of up to 10, and MacMillan number × film thickness (µm) of up to 200, the separator has an average film thickness of 10-35 µm, METSUKE of 10-25 g/m2 a Gurley value of up to 60 , sec/100cc or between 60 sec/100 cc and 500 sec/100cc and a specific , relational expression is induced between an effective active material mass in the battery system and the …
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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 August 21, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2025.
- 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.