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A rheological behavior of various polyvinylidene difluoride binders for high capacity LiNi 0.6 Mn 0.2 Co 0.2 O 2
Author(s) -
Biso Maurizio,
Colombo Roberta,
Uddin MdJamal,
Stanga Milena,
Cho SungJin
Publication year - 2016
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24304
Subject(s) - materials science , polyvinylidene fluoride , difluoride , rheology , chemical engineering , suspension (topology) , slurry , lithium (medication) , battery (electricity) , lithium ion battery , lithium battery , coating , dispersant , composite material , ion , polymer , inorganic chemistry , organic chemistry , thermodynamics , chemistry , mathematics , endocrinology , engineering , power (physics) , homotopy , medicine , physics , pure mathematics , dispersion (optics) , optics , ionic bonding
Various polyvinylidene difluorides (PVDF) as polymeric binding agent in lithium‐ion battery were rheologically evaluated on high capacity and excess lithium‐LiNi 0.6 Mn 0.2 Co 0.2 O 2 (Ni‐rich NMC). We found that the suspension polymerized PVDF binder is more stable upon gelation for long duration while other high molecular weight PVDF binders (MW > 900,000) show irreversible rheological transformation that can dramatically compromise the coating step during lithium‐ion battery electrode slurry preparation. POLYM. ENG. SCI., 56:760–764, 2016. © 2016 Society of Plastics Engineers