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Ionic conducting polymer encapsulated graphite as the anode material for lithium ion batteries
Author(s) -
Pan Qinmin,
Wang Lingzhi,
Fang Shibi
Publication year - 2003
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.294
Subject(s) - materials science , graphite , electrolyte , anode , intercalation (chemistry) , raman spectroscopy , chemical engineering , polymer , lithium (medication) , ionic bonding , surface modification , propylene carbonate , faraday efficiency , polymerization , ion , inorganic chemistry , organic chemistry , composite material , electrode , chemistry , physics , endocrinology , optics , engineering , medicine
A novel surface modification approach involving the application of radiation technology to the development of graphite anode of lithium ion batteries. Ionic conductive poly(stylene sulfonic acid) lithium salt (PSSALi) was microencapsulated on the surface of graphite particles by means of radiation‐initiated polymerization. Results showed that the cointercalation of solvated Li + in a propylene carbonate (PC) based electrolyte was depressed successfully and the initial coulombic efficiency was enhanced after encapsulation. The high stability of the surface structure of encapsulated graphite during the initial intercalation process was observed by in situ Raman spectroscopy. Copyright © 2003 John Wiley & Sons, Ltd.