Polyampholyte Copolymers Based on Dual Ionic Monomers as Self‐Healing Aqueous Binders for Lithium Ion Battery Cathodes

ranging from -57°C to 166°C), varying from sticky polymers to very brittle membranes. The intermediate compositions, which show copolymers that are mechanically flexible and highly adhesive, were further evaluated. Self-healing properties were investigated by optical microscopy and rheological measurements, showing intrinsic repair ability at different temperatures, such as 40°C. Finally, ionic conductivity and electrochemical battery testing of the selected polyampholyte copolymer composition corroborate the potential application as water-soluble binders in cathodes for lithium-ion batteries.