@article{Byun2024, 
author = {Seoungwoo Byun and Zhu Liu and Dong Ok Shin and Kyuman Kim and Jaecheol Choi and Youngjoon Roh and Dahee Jin and Seungwon Jung and Kyung-Geun Kim and Young-Gi Lee and Stefan Ringe and Yong Min Lee},
title = {Alkali Metal Ion Substituted Carboxymethyl Cellulose as Anode Polymeric Binders for Rapidly Chargeable Lithium-Ion Batteries},
year = {2024},
journal = {Energy & Environmental Materials},
volume = {7},
number = {1},
pages = {e12509},
keywords = {de-solvation, digital twins, fast charging, graphite anodes, polymeric binders},
url = {https://www.sciopen.com/article/10.1002/eem2.12509},
doi = {10.1002/eem2.12509},
abstract = {The increasing demand for short charging time on electric vehicles has motivated realization of fast chargeable lithium-ion batteries (LIBs). However, shortening the charging time of LIBs is limited by Li+ intercalation process consisting of liquid-phase diffusion, de-solvation, SEI crossing, and solid-phase diffusion. Herein, we propose a new strategy to accelerate the de-solvation step through a control of interaction between polymeric binder and solvent-Li+ complexes. For this purpose, three alkali metal ions (Li+, Na+, and K+) substituted carboxymethyl cellulose (Li-, Na-, and K-CMC) are prepared to examine the effects of metal ions on their performances. The lowest activation energy of de-solvation and the highest chemical diffusion coefficient were observed for Li-CMC. Specifically, Li-CMC cell with a capacity of 3 mAh cm−2 could be charged to >95% in 10 min, while a value above >85% was observed after 150 cycles. Thus, the presented approach holds great promise for the realization of fast charging.}
}