Phosphorylated Chitosan/Polyacrylic Acid Cross‐Linked Binder Enabling Silicon Anodes with High Electrochemical Stability and Intrinsic Thermal Safety

after 200 cycles. In addition, PCS also inhibits the pyrolysis of PAA, increases the temperature at which the binder decomposes to produce combustible gases, and reduces the number of combustible gases generated, thereby enhancing the fire safety of the binder. Moreover, its water solubility also reduces the use of organic solvents, making it more environmentally friendly. This research work introduces a novel method for realizing a binder with electrochemical cycling stability and high thermal safety, addressing the key challenges in the pursuit of sustainable energy solutions.