Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/151298
Title: In situ cross-linked carboxymethyl cellulose-polyethylene glycol binder for improving the long-term cycle life of silicon anodes in Li ion batteries
Authors: Lee, Dongsoo
Park, Hyunjung
Goliaszewski, Alan
Byeun, Yun-ki
Song, Taeseup
Paik, Ungyu
Keywords: Engineering::Chemical engineering
Issue Date: 2019
Source: Lee, D., Park, H., Goliaszewski, A., Byeun, Y., Song, T. & Paik, U. (2019). In situ cross-linked carboxymethyl cellulose-polyethylene glycol binder for improving the long-term cycle life of silicon anodes in Li ion batteries. Industrial and Engineering Chemistry Research, 58(19), 8123-8130. https://dx.doi.org/10.1021/acs.iecr.9b00870
Journal: Industrial and Engineering Chemistry Research
Abstract: To increase the energy density of Li-ion batteries (LIBs), silicon has been widely studied due to its relative abundance and high theoretical specific capacity (∼3572 mAh g–1). However, silicon experiences drastic volume changes up to 300% associated with Li. Here, we report an in situ cross-linked carboxymethyl cellulose-polyethylene glycol (CMC-PEG) binder and its application to the silicon anode to improve cycle life. Through in situ cross-linking during the electrode drying process, the cross-linked CMC-PEG binder is simply prepared without an additional process. In particular, the cross-linked CMC-PEG binder is effective in enhancing cohesion between active materials and adhesion between active materials and a current collector. The silicon anode with the cross-linked CMC-PEG binder shows stable cycling performance with a capacity of ∼2000 mAh g–1 up to 350 cycles at 0.5 C. In terms of simplicity, this binder has potential to be used for silicon anodes and other electrodes experiencing volume expansion during cycling.
URI: https://hdl.handle.net/10356/151298
ISSN: 0888-5885
DOI: 10.1021/acs.iecr.9b00870
Rights: © 2019 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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