100g Polytetrafluoroethylene (PTFE) Binder

Product Details:

Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene, consisting solely of carbon and fluorine atoms. Compared with Polyvinylidene Fluoride (PVDF) binder, the PTFE binder offers better chemical and thermal stability due to its stable –CF₂–CF₂– structure. It is particularly suitable for applications in alkaline environments, where PVDF tends to degrade significantly through dehydrofluorination.

The PTFE binder is widely used in the preparation of electrode materials for batteries, fuel cells, and supercapacitors. Studies have shown that supercapacitors utilizing PTFE binders can deliver enhanced capacity and improved cycling performance.

Packing: 100g/bottle

CAS Number	9002-84-0
Appearance	White powder
Particle Size	~480 um
Glass Transition Temperature	326~328 °C
Relative Density	2.14~2.20 g/cm3
Apparent Density	~600 g/L

Use Instructions:

1) For solid electrode preparation, mix the active material with PTFE powder and then grind to form a homogeneous mixture. Adding several drops of water or other solvent can improve the homogeneity.

2) For electrode slurry application, add the active material and PTFE powder into suitable amount of water or other solvent and then stir to form a homogeneous slurry.

References:

1. Effects of Various Binders on Supercapacitor Performances, Int. J. Electrochem. Sci., 11 (2016) 8270 – 8279

2. Effect of binder on the performance of carbon/carbon symmetric capacitors in salt aqueous electrolyte, Electrochimica Acta 140 (2014) 132–138

3. Role of Binders in High Temperature PEMFC Electrode, J. Electrochem. Soc., 158 (6) B675-B681 (2011)