NaPAA (Sodium Polyacrylate) Aqueous Dispersion as Sodium-Ion Battery Electrode Binder, 100 g/bottle, CSIBEBNaPAA

NaPAA (Sodium Polyacrylate) is an advanced binder derived from Poly(acrylic acid) (PAA) through a process of partial or full neutralization with sodium hydroxide (NaOH). It is a high-performance, water-soluble binder used predominantly in Silicon (Si)-based anodes for next-generation sodium-ion batteries (LIBs). NaPAA provides the required mechanical strength to hold the active material (like SnO2 and Black Phosphorus, which swell significantly) together, preventing the particles from pulverizing and losing electrical contact. NaPAA helps form a stable and protective Solid Electrolyte Interphase (SEI) film on the anode surface. This film prevents continuous side reactions with the electrolyte, suppressing the accumulation of resistive SEI components and greatly improving cycle life.

Part Number	CSIBEBNaPAA (C-SIBEB-NaPAA)
CAS	9003-04-7
Chemical Formula	(C3H3NaO2)n
Appearance	Milk white dispersion with light yellow
Solid Content	6.05%
Dispersion Viscosity	10000-18000 cP (40°C)
pH	6.9
Package Size	100 g/bottle

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

References: 

1. D. H. Yun, et al. A binder-driven cathode–electrolyte interphase via a displacement reaction for high voltage Na3V2(PO4)2F3 cathodes in sodium-ion batteries, J. Mater. Chem. A, 2023, 11, 5540-5547.
2.  J. Patra, et al. A Water-Soluble NaCMC/NaPAA Binder for Exceptional Improvement of Sodium-Ion Batteries with an SnO2-Ordered Mesoporous Carbon Anode, ChemSusChem, 2018, 11, 3923-3931.