This research demonstrates that carboxyethyl cellulose improves battery performance compared to traditional binders, indicating potential for better lithium batteries.
Carboxyethyl cellulose lithium (CEC-Li) is a promising new water-soluble binder for lithium batteries. This study describes the preparation of CEC-Li with excellent water solubility (DS of 0.74 and viscosity of 3028 mPa·s) using wood dissolving pulp (DP) as the raw material, lithium hydroxide (LiOH) as the alkaliser, and acrylamide (AM) as the etherifying agent, via alkaline solubilisation, alkalisation reaction, and etherification reaction. Compared to polyvinylidene fluoride (PVDF) binders, the LiFePO 4 (LFP) battery prepared with CEC-Li exhibited lower electrochemical impedance (218 Ω) and a smaller potential difference (0.39 V) than the PVDF-LFP battery (434 Ω and 0.44 V). CEC-Li demonstrated excellent electrochemical performance.
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Qin et al. (2025) studied this question.
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