Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 565, Issue -, Pages 270-277Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.01.028
Keywords
Si anode; PEDOT:PSS; Binder; Lithium ion batteries
Categories
Funding
- Science and Technology Commission of Shanghai Municipality [18230743400, 17ZR1441200, 18QA1402400]
- National Natural Science Foundation of China [21771124]
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Developing conductive polymer binders is a new way to enhance the electric connectivity and mechanical contact of Si based anode material. While the linear structure of commercial PEDOT:PSS cannot effectively alleviate the volume expansion of Si. Herein, glycerol was introduced as a cross-linker to PEDOT: PSS binder for Si anodes, which can further improve the interfacial compatibility between silicon and PEDOT:PSS. After crosslinking, the peel force increased 2 times. As a result, the Si nanoparticles anode with the glycerol-crosslinked binder exhibited a high reversible capacity of 1951.5 mAh g(-1) after 200 cycles at 0.5 A g(-1) and superior rate capability (804 mAh g(-1) at a high current of 8.0 A g(-1)) for the inherent superior conductivity of PEDOT:PSS. (C) 2020 Published by Elsevier Inc.
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