Developing nanocellulose-based binders with eco-friendly and high ion transfer properties for aqueous fabrication processes in LFP thick electrodes
발표자
()
초록
내용
LFP (LiFePO4) is known for its cost-effectiveness, stability, and safety, including high moisture stability. However, its lower voltage and gravimetric capacity compared to NCM and NCA pose limitations on energy density. Developing a thick electrode for LFP shows promise in overcoming these constraints. In this study, we focused on designing and producing a nanocellulose-based binder specifically for the LFP thick electrode. The nanocellulose-based binder stands out for its environmentally friendly, as it employs aqueous solvents throughout its manufacturing process, from binder to electrode production. Moreover, its structure fosters nanofiber formation, facilitating the efficient transfer of lithium ions within the electrode. The abundant hydroxyl groups on the surface of the nanocellulose-based binder enhance its adhesion and compatibility with the electrode. The nanocellulose-based binder maintains mechanical stability and alleviates the effect of reducing ionic conductivity as the electrode becomes thicker.