Do eco-friendly binders affect the electrochemical performance of MOF@CNT anodes in lithium-ion batteries?

Abstract

Today, with the advancement of technology, the environment is in danger more than ever. Given the increasing use of lithium-ion batteries (LIBs), it is essential to find more suitable binders...

The Effect of Poly(vinylidene difluoride-co-hexafluoropropylene)-g-poly(styrene sulfonate) Binder and Carbon Fiber Current Collector on the Electrochemical Performance of LiFePO4 Cathode for Lithium-Ion Batteries

“…In the electrodes with a carbon fiber current collector, the peak adhesion force of electrodes with PVDF-HFP- g -PSSA is approximately five times more than pristine PVDF and in the electrodes with an aluminum current collector. Better adhesion of PVDF-HFP- g -PSSA leads to more strength when the electrode swells during charge/discharge cycles; thus, it enhances electrode stability, cyclability, and flexibility . The higher adhesion of PVDF-HFP- g -PSSA/carbon fiber electrodes can be assigned to their reinforced interfacial stability due to the π–π interactions of polystyrene moieties of PVDF-HFP- g -PSSA and carbon fiber (Figure ).…”

“…T-peeling tests were conducted on prepared electrodes with different binding materials (PVDF-HFP- g -PSSA and PVDF) and different current collectors (carbon fabric and Al) to examine the adhesion strength of the binders. The testing dimensions of electrodes were 1.7 cm × 10 cm using conventional tape, and the specimens were fixed in an STM-50 (SANTAM) tensile testing machine with a peeling speed of 45 mm min –1 and an angle of 90° …”