PTFE (Polytetrafluoroethylene, Chemours) Powder as Battery Electrode Binder, 100 or 250 g/bottle, CBEBPTFE

PTFE (Polytetrafluoroethylene) is a high-performance fluoropolymer used as a binder in lithium-ion batteries (LIBs), primarily in applications utilizing the solvent-free or dry-electrode processing technique. It is a linear polymer composed entirely of carbon and fluorine (-CF2-CF2- backbone). The strong, short C-F bonds give it superior properties of chemical Inertness and thermal stability. The most significant use of PTFE is in the Dry Electrode Process (DEP), which eliminates the need for any liquid solvent (NMP or water), offering major cost, energy, and environmental benefits. Unlike traditional binders that are dissolved and then dried, PTFE is mixed as a powder (or dispersion). Under high mechanical shear and heat (e.g., during high-speed mixing, kneading, or hot-rolling), the PTFE particles undergo a phase transformation and are physically stretched into a vast, three-dimensional network of nano-fibrils.

Part Number	CBEBPTFE (C-BEB-PTFE)
CAS	9002-84-0
Chemical Formula	(CF2CF2)n
Appearance	White Powder
Density	~2.16 g/cm3
Average Size	500 um
Melting Point	Tg: 130 °C Tm: 327 °C
Package Size	100 g/bottle

Notes: Please try to store the PTFE powders in a dry place (glovebox is the best option). 

References: 

1. D. Kong, et al. Revealing the Impact of the Binder Content on Solvent-Free PTFE-Based SiOx/C Composite Electrodes for High-Energy-Density Lithium-Ion Batteries, ACS Appl. Energy Mater. 2025, 8, 20, 15438–15447.
2. K. E. Sung, et al. Enhanced adhesion in PTFE-based dry electrodes with hydrogen bonding co-binder integration for advanced lithium-ion batteries, Chem. Engineering J., 2025, 511, 161789.