HNBR (Hydrogenated Nitrile Butadiene Rubber) Dispersion (20 wt% in NMP) as Battery Electrode Binder, 200 g/bottle, CBEBHNBRD

Hydrogenated Nitrile Butadiene Rubber (HNBR) is a high-performance elastomeric binder used in lithium-ion batteries, particularly in electric vehicle (EV) and high-capacity ternary batteries (NMC/NCA). HNBR is engineered to provide superior mechanical flexibility and interfacial adhesion, preventing the electrode from cracking or peeling during the physical stress of charging and discharging.

NBR acts as a "structural rubber" that holds active material and conductive agents together. (1) HNBR maintains a stable electrode structure even under high-rate charging. Its low swelling in electrolytes ensures that ion and electron pathways remain open, improving the battery's longevity. (2) Unlike brittle binders, HNBR is highly elastic. This makes it a primary candidate for silicon-based anodes and high-nickel cathodes, which expand and contract significantly during use. (3) In solid-state research, HNBR is valued because it resists chemical reactions with sulfide-based solid electrolytes, where standard nitrile rubber (NBR) would harden and fail.

The HNBR dispersion (in NMP) can be readily used for mixing cathode materials to form highly homogeneous slurry. 

Part Number	CBEBHNBRD (C-BEB-HNBRD)
CAS	308068-83-9
Chemical Formula/Structure
Appearance	Brown Slurry
Solid Content in Dispersion	~20 wt% (other solid content in 1-20 wt% can be customized)
Package Size	200 g/bottle

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

References: 

1. N. Verdier, et al. Polyacrylonitrile-based rubber (HNBR) as a new potential elastomeric binder for lithium-ion battery electrodes, J. Power Source, 2019, 440, 227111.
2. Y. Duan, et al. PAA/HNBR composite Binder: A sustainable fluorine-free binder Strategy for high-rate and Durable LiFePO4 cathodes, J. Power Sources, 2026, 665, 239006.