For high capacity needs, Silicon Anode requires more toughness to binder in much severer Charge-Discharge conditions, and ForeverEV’s advanced polymer technologies have fulfilled the market needs with a variety of unique BINDER performances.

BATTBOND 290S is an acrylate-based multi-component copolymer, with -CC- bond as the main chain, a branched chain with strong polar functional groups such as -CN, which endows the adhesive molecules with high bonding strength, while the strong polar side groups endow the binder molecules with higher cohesive strength, showing higher cohesive strength during the bonding process of the negative electrode material, and has a certain inhibitory effect on the expansion of the Si-C material;

BATTBOND 290S also has a higher molecular weight and its unique network structure, which makes it show excellent bonding strength in the application of Si-C materials; With water as the dispersion medium, BATTBOND 290S is an environmentally friendly binder material for lithium-ion batteries. It is easy to use, with no need to dissolve/pre-dissolve in advance, it can be used directly by diluting with deionized water.

BATTBOND 290S has good dispersibility for lithium-ion battery silicon-based anode active materials.

BATTBOND 290S has excellent thermal stability and a high decomposition temperature to ensure the stability of the molecular structure during use; The binder has good electrochemical stability and remains stable in the redox environment of lithium-ion batteries without any side reactions; The product also has good mechanical stability, thermal stability and freeze-thaw stability, which is convenient for transportation, storage and processing.

Key Parameters:

  • Appearance: Milky-white to slightly-yellow Liquid
  • Solid Substrate: 15±0.2% (150℃×30min)
  • pH: 7～9
  • Adhesion: ≥25,000mPa·s（12rpm/25℃）
  • Stability: Not breaking
  • Adhesion of Electrodes: Not Powder-off