Water-based PFAS-free binder system for Chemo-mechanically Durable Interfaces in nickel-rich cathodes: Reinforcing the nanonetwork using carboxylated cellulose nanofibers

Water-based PFAS-free binder system for Chemo-mechanically Durable Interfaces in nickel-rich cathodes: Reinforcing the nanonetwork using carboxylated cellulose nanofibers | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 12 May 2026 V1 Latest version Share on Water-based PFAS-free binder system for Chemo-mechanically Durable Interfaces in nickel-rich cathodes: Reinforcing the nanonetwork using carboxylated cellulose nanofibers Authors : Seoyoung Yun [email protected] , Goomin Kwon [email protected] , Heeji Jeon [email protected] , Minseo Kim [email protected] , Hojoon Choi [email protected] , Jieun Jang [email protected] , Jisoo Park [email protected] , Eunsung Hwang [email protected] , Jiwoong Choi [email protected] , Hanbyeol Lee [email protected] , and Jeonghun Kim 0000-0001-6325-0507 [email protected] Authors Info & Affiliations https://doi.org/10.22541/authorea.15003133/v1 14 views 8 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract High-energy Ni-rich layered oxides are leading candidates for use as cathode materials in next-generation lithium-ion batteries. However, their practical application has been hindered by their intrinsic structural instability and chemical incompatibility with conventional aqueous processing methods. In this study, we report a sustainable, water-processable binder strategy using TEMPO-oxidized cellulose nanofibers (TOCNs) to address the trade-off between electrode adhesion and electrochemical stability. In contrast to conventional binders or unmodified cellulose nanofibers, TOCNs possess abundant surface carboxyl groups that promote their dispersion in aqueous media and facilitate robust chemical anchoring to the surface of the active material. This leads to the formation of a uniform, interconnected nanofibrous network that effectively reinforces the electrode microstructure against chemo-mechanical degradation. As a demonstration of this, an NCM811 cathode incorporating the TOCN binder exhibits an exceptional peel strength and excellent electrochemical performance, delivering a high specific capacity with a superior rate capability (134 mAh g-1 at 5 C) and a remarkable cycling stability (83.4% retention after 200 cycles). These findings highlight the potential of functionalized biomass-derived nanostructures for use in durable, eco-friendly, and high-performance energy storage systems. Supplementary Material File (supporting information.docx) supporting information Download 6.83 MB Information & Authors Information Version history V1 Version 1 12 May 2026 Keywords polymer solid state mechanochemical method flame retardant TEMPO-oxidized cellulose nanofiber Water-based binder PFAS-free cathode polymer solid state mechanochemical method flame retardant Clean Energy Green Catalysis Environment Friendly Materials Waste Treatment and Management Authors Affiliations Seoyoung Yun [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Goomin Kwon [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Heeji Jeon [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Minseo Kim [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Hojoon Choi [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Jieun Jang [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Jisoo Park [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Eunsung Hwang [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Jiwoong Choi [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Hanbyeol Lee [email protected] Yonsei University, Seodaemun-gu, Korea (the Republic of), 03722 View all articles by this author Jeonghun Kim 0000-0001-6325-0507 [email protected] View all articles by this author Metrics & Citations Metrics Article Usage 14 views 8 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Seoyoung Yun, Goomin Kwon, Heeji Jeon, et al. Water-based PFAS-free binder system for Chemo-mechanically Durable Interfaces in nickel-rich cathodes: Reinforcing the nanonetwork using carboxylated cellulose nanofibers. Authorea . 12 May 2026. DOI: https://doi.org/10.22541/authorea.15003133/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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