A binder-free Si-based anode for Li-ion batteries

Chunqian Zhang, Fan Yang, Dalin Zhang, Xu Zhang, Chunlai Xue, Yuhua Zuo, Chuanbo Li*, Buwen Cheng, Qiming Wang

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

16 Citations (Scopus)

Abstract

A binder-free anode for lithium ion batteries consisting of micro-sized silicon particles and polyacrylonitrile (PAN) was prepared. By optimizing the size of the Si particles and the ratio of Si particles to PAN, the performance of the anode was greatly enhanced. Although its columbic efficiency in the first cycle is comparatively lower than that made by traditional methods, it increases to 99% in the 8th cycle, and remains above 99.5% for up to 190+ cycles. Due to its adhesivity and conductance, pyrolyzed PAN (PPAN) can be used both as a binder and the conductive agent at the same time.

Original languageEnglish
JournalRSC Advances
Volume5
Issue number21
Pages (from-to)15940-15943
Number of pages4
ISSN2046-2069
DOIs
Publication statusPublished - 2015

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2015.

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