fig7

Figure 7. (A) Schematic illustration of the interaction between cross-linked PAA-PVA and the Si anode, and the cycling performance of Si electrodes using PAA-PVA, NaCMC, and PAA binders. Adapted from ref.^[64]; (B) Schematic illustration of polymer interaction among PAA, NaCMC, and functionalized SCNT, enhancing mechanical integrity, and peeling test results and cycle performance comparison among μSi electrodes using PAA-NaCMC 1, PAA, and NaCMC binders. Adapted with permission from ref.^[34]; (C) Schematic illustration of Si/C composite anodes incorporating the cross-linked binder P(SH-BA). Rate capability comparison of Si/C₄₅₀ electrodes with various binder systems. Long-term cycling performance and Coulombic efficiency of coin-type Si/C₆₀₀//Li half cells employing P(SH-BA3%) and PSH binders (tested at 0.2 C). Adapted with permission from ref.^[13]; (D) Schematic representations of LiPAA, TA, and SS, followed by a depiction of the physicochemically cross-linked LPTS composite polymer binder and its functional integration into Si-based anodes during lithiation/delithiation. Initial galvanostatic charge-discharge profiles of Si/PTS, Si/LPT, Si/LPS, and Si/LPTS electrodes at 0.1 C are shown, along with their cycling stability at 0.5 C, highlighting the improved electrochemical performance enabled by the LPTS binder system. Adapted with permission from ref.^[38]; (E) Schematic illustration of the Si/CPU-PAA anode architecture and hierarchical stress-dissipating polymeric network. Cycling performance of Si anodes in half cells at 1 A g^-1 with a high Si mass loading of 1.5 mg cm^-2. Morphological comparison between Si/PAA and Si/CPU-PAA anodes before and after 50 cycles in Si//Li half cells, demonstrating the structural reinforcement provided by the CPU-PAA binder. Adapted with permission from ref.^[22].