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
- Issue Date
- May-2019
- Publisher
- AMER CHEMICAL SOC
- Citation
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.58, no.19, pp 8123 - 8130
- Pages
- 8
- Journal Title
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
- Volume
- 58
- Number
- 19
- Start Page
- 8123
- End Page
- 8130
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/90191
- DOI
- 10.1021/acs.iecr.9b00870
- ISSN
- 0888-5885
1520-5045
- 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 (similar to 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 similar to 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.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/90191)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.