A rheological behavior of various polyvinylidene difluoride binders for high capacity LiNi0.6Mn0.2Co0.2O2

作者：Biso Maurizio; Colombo Roberta; Uddin Md Jamal; Stanga Milena; Cho Sung Jin

来源：Polymer Engineering and Science, 2016, 56(7): 760-764.

DOI：10.1002/pen.24304

<jats:p>Various polyvinylidene difluorides (PVDF) as polymeric binding agent in lithium‐ion battery were rheologically evaluated on high capacity and excess lithium‐LiNi<jats:sub>0.6</jats:sub>Mn<jats:sub>0.2</jats:sub>Co<jats:sub>0.2</jats:sub>O<jats:sub>2</jats:sub> (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 &gt; 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.

• 出版日期2016-7