HNBR (Hydrogenated Nitrile Butadiene Rubber) Powder as Battery Electrode Binder, 100 g/bottle, CBEBHNBR

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.

Part Number	CBEBHNBR (C-BEB-HNBR)
CAS	308068-83-9
Chemical Formula/Structure
Appearance	Brown powder
Package Size	100 g/bottle

Notes: Please try to store the HNBR powder 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.