PAN (Polyacrylonitrile) Aqueous Dispersion (LA133) as Battery Electrode Binder, 200 g/bottle, CBEBPAN

Aqueous PAN-based binders are typically copolymers designed to combine the mechanical strength of PAN with the water-solubility of acrylic or amide groups. The nitrile groups in PAN have a strong dipole moment. While PAA relies on hydrogen bonding, PAN-based binders use dipole-dipole interactions and specific chemical affinities to stay attached to the silicon and the copper current collector.

The PAN Component: Provides high polarity and electrochemical stability. The nitrile groups (-C-N) provide strong interaction with the electrolyte, facilitating Li-ion transport. The "Aqueous" Component: Monomers like Acrylic Acid or Acrylamide are added to the chain. These introduce carboxyl (-COOH) or amide groups that allow the polymer to be processed in distilled water.

Moreover, PAN is a well-known host for Gel Polymer Electrolytes. In a binder form, it swells slightly in the liquid electrolyte, creating a "nano-highway" for lithium ions. This reduces the internal resistance of the cell, allowing for better C-rate performance (faster charging).

Part Number	CBEBPAN (C-BEB-PAN)
CAS	25014-41-9
Chemical Formula	(C3H3N)n
Appearance	Milk white dispersion
Size	D50: 0.72 um
Solid Content	15.1%
Dispersion Viscosity	5350 cP (40°C)
pH	8.2
Package Size	200 g/bottle

Notes: Please try to store the PAN aqueous dispersion liquid in a dry place (glovebox is the best option). 

References: 

1. L. Luo, et al. Comprehensive Understanding of High Polar Polyacrylonitrile as an Effective Binder for Li-Ion Battery Nano-Si Anodes, ACS Appl. Mater. Interfaces 2016, 8, 12, 8154–8161.
2. Y. Chen, et al. Insight into Superior Electrochemical Performance of 4.5 V High-Voltage LiCoO2 Using a Robust Polyacrylonitrile Binder, ACS Appl. Energy Mater. 2022, 5, 3, 3072–3080.