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  • 专利标题:   Manufacture of single-layer or multilayer porous film for electrode material, involves providing flowable base mixture, forming precursor film comprising partial layer(s) formed from mixture, contacting precipitant, and precipitating binder.
  • 专利号:   WO2021087535-A1, KR2022093356-A, CN114631223-A, EP4055658-A1, US2022393302-A1, JP2023501342-W
  • 发明人:   UNGERANK M
  • 专利权人:   CREONIA EU, CREONIASELS GMBH, CREONIA CELLS GMBH, CREONIA CELLS GMBH, CREONIA EU
  • 国际专利分类:   H01M010/0525, H01M002/14, H01M002/16, H01M050/403, H01M010/052, H01M004/13, H01M050/406, H01M050/414, H01M050/446, H01M050/449, H01M050/457, H01M050/46, H01M050/491, H01M050/40, H01M050/409, B29C044/00, B29C048/00, B29C048/21, B32B005/32, C08J009/28, H01M004/139, H01M004/62
  • 专利详细信息:   WO2021087535-A1 14 May 2021 202145 Pages: 43 German
  • 申请详细信息:   WO2021087535-A1 WOAT060374 05 Nov 2019
  • 优先权号:   CN80101931, EP802037, JP526012, WOAT060374, CN80101931, US17773320, KR718798

▎ 摘　　要

NOVELTY - Manufacture of a single-layer or multilayer porous film involves providing a flowable base mixture (A) comprising a solvent, a filler insoluble in the solvent and a polymeric binder dissolved in the solvent for forming a film layer (A) of the film, forming a precursor film (21) comprising at least one partial layer formed from the mixture (A), bringing the precursor film into contact with a precipitant, and precipitating the binder as the solvent is soluble in the precipitant but the binder is insoluble in the precipitant. USE - Manufacture of single-layer or multilayer porous film for electrode material used in energy storage medium (all claimed) e.g. lithium ion battery. ADVANTAGE - The method provides film having excellent mechanical stability, and provides energy storage medium having high energy density. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of the method. Storage container (4) Precipitation bath (9) Circulating pump (10) Electrode material (15) Precursor film (21)