J. Mater. Sci. Technol. ›› 2016, Vol. 32 ›› Issue (3): 195-199.DOI: 10.1016/j.jmst.2015.12.019

    Next Articles

Highly Stable Silicn-Carbn-Nitrgen Cmpsite Andes frm Silsesquiazane fr Rechargeable Lithium-In Battery

Yng Sek Kim1, Yng L. J1, Yung-Je Kwark2, *   

  1. 1. Schl f Chemical & Bimlecular Engineering, Crnell University, Ithaca, NY 14853, USA;
    2. Department f rganic Materials and Fiber Engineering, Sngsil University, Seul 06978, Suth Krea
  • Received:2015-10-16 Revised:2015-12-06 Online:2016-03-10
  • Contact: Ph.D.; Tel.: +82 28200621; Fax: +82 28178346.E-mail address: ykwark@ssu.ac.kr (Y.-J. Kwark).
  • Supported by:
    This wrk was supprted by the Human Resurces Develpment f the Krea Institute f Energy Technlgy Evaluatin and Planning (KETEP) grant funded by the Ministry f Knwledge Ecnmy (N. 20124030200070), Republic f Krea.

Abstract: Herein, we develped nvel silicn-carbn-nitrgen (SiCN) cmpsites synthesized by pyrlyzing silsesquiazane plymer as an ande material fr rechargeable lithium-in batteries. Amng variable pyrlysis temperatures f 700 °C, 1000 °C and 1300 °C, the SiCN cmpsites prepared at 1000 °C shwed the highest capacity with utstanding battery cycle life by cyclic vltammetry and electrchemical impedance spectrscpy. Such gd battery and electrchemical perfrmances shuld be attributed t a prper rati f carbn and nitrgen r xygen in the SiCN cmpsites. Furthermre, ur SiCN electrde pssessed better lithium in cnductivity than pure silicn nanparticles. This wrk demnstrates that plymer-derived cmpsites are amng the prmising strategies t achieve highly stable silicn andes fr rechargeable batteries.

Key words: Plymer-derived ceramics, Silsesquiazane, Lithium in battery, Lithium in cnductivity