Publication:
Photo-crosslinked lignin/PAN electrospun separator for safe lithium-ion batteries

Simple item page
dc.contributor.authorKAHRAMAN, MEMET VEZİR
dc.contributor.authorsKahraman M. V.
dc.date.accessioned2022-11-04T07:10:40Z
dc.date.available2022-11-04T07:10:40Z
dc.date.issued2022-10-01
dc.description.abstractA novel crosslinked electrospun nanofbrous membrane with maleated lignin (ML) and poly(acrylonitrile) (PAN) is presented as a separator for lithium-ion batteries (LIBs). Alkali lignin was treated with an esterifcation agent of maleic anhydride, resulting in a substantial hydroxyl group conversion to enhance the reactivity and mechanical properties of the fnal nanofber membranes. The maleated lignin (ML) was subsequently mixed with UV-curable formulations (up to 30% wt) containing polyethylene glycol diacrylate (PEGDA), hydrolyzed 3-(Trimethoxysilyl)propyl methacrylate (HMEMO) as crosslinkers, and poly(acrylonitrile) (PAN) as a precursor polymer. UV-electrospinning was used to fabricate PAN/ML/HMEMO/PEGDA (PMHP) crosslinked membranes. PMHP membranes made of electrospun nanofbers feature a three-dimensional (3D) porous structure with interconnected voids between the fbers. The mechanical strength of PMHP membranes with a thickness of 25 µm was enhanced by the variation of the cross-linkable formulations. The cell assembled with PMHP2 membrane (20 wt% of ML) showed the maximum ionic conductivity value of 2.79*10−3 S cm−1, which is signifcantly higher than that of the same cell with the liquid electrolyte and commercial Celgard 2400 (6.5*10−4 S cm−1). The enhanced LIB efciency with PMHP2 membrane can be attributed to its high porosity, which allows better electrolyte uptake and demonstrates higher ionic conductivity. As a result, the cell assembled with LiFePO4 cathode, Li metal anode, and PMHP2 membrane had a high initial discharge specifc capacity of 147 mAh g−1 at 0.1 C and exhibited outstanding rate performance. Also, it efectively limits the formation of Li dendrites over 1000 h. PMHP separators have improved chemical and physical properties, including porosity, thermal, mechanical, and electrochemical characteristics, compared with the commercial ones.
dc.identifier.citationKahraman M. V. , "Photo-crosslinked lignin/PAN electrospun separator for safe lithium-ion batteries"", SCIENTIFIC REPORTS, cilt.12, sa.18272, ss.1-13, 2022
dc.identifier.doi10.1038/s41598-022-23038-7
dc.identifier.endpage13
dc.identifier.issn2045-2322
dc.identifier.issue18272
dc.identifier.startpage1
dc.identifier.urihttps://www.nature.com/articles/s41598-022-23038-7
dc.identifier.urihttps://hdl.handle.net/11424/282887
dc.identifier.volume12
dc.language.isoeng
dc.relation.ispartofSCIENTIFIC REPORTS
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectTemel Bilimler
dc.subjectMühendislik ve Teknoloji
dc.subjectNatural Sciences
dc.subjectEngineering and Technology
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectTemel Bilimler (SCI)
dc.subjectDoğa Bilimleri Genel
dc.subjectÇOK DİSİPLİNLİ BİLİMLER
dc.subjectEngineering, Computing & Technology (ENG)
dc.subjectNatural Sciences (SCI)
dc.subjectNATURAL SCIENCES, GENERAL
dc.subjectMULTIDISCIPLINARY SCIENCES
dc.subjectMultidisipliner
dc.subjectMultidisciplinary
dc.titlePhoto-crosslinked lignin/PAN electrospun separator for safe lithium-ion batteries
dc.typearticle
dspace.entity.typePublication
local.avesis.id9f88634d-be4f-45c2-88a6-c789b30ba604
relation.isAuthorOfPublication7676f3ad-0384-4001-b17d-b928ae2de7e6
relation.isAuthorOfPublication.latestForDiscovery7676f3ad-0384-4001-b17d-b928ae2de7e6

Files

Collections

Research Outputs