[3A01-07] Topical symposium

10:00 AM - 10:30 AM JST(1:00 AM - 1:30 AM UTC)

[3A03【依頼講演】] Development of biomass residue-derived binders for silicon negative electrode and surface analysis by XPS

*Takuya Eguchi¹ (1. Nihon University (Japan))

Kenaf-derived lignin copolymerized with polyacrylamide (KL-PAM) was developed as an aqueous binder for Si electrodes, and its thermally controlled dual stabilization mechanisms were cleared. Low-temperature treatment improved flexibility and adhesion, whereas high-temperature treatment enhanced conductivity through carbonization. Both approaches outperformed conventional binders. Therefore, both low- and high-temperature thermal treatment strategies are viable for lignin-based binders for Si electrodes, with distinct development pathways required according to their fundamentally different stabilization mechanisms.

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