Solid Polymer Electrolytes Based on Functionalized Tannic Acids from Natural Resources for All­Solid­State Lithium­Ion Batteries

Title
Solid Polymer Electrolytes Based on Functionalized Tannic Acids from Natural Resources for All­Solid­State Lithium­Ion Batteries
Authors
심지민배기윤김희중이진홍김동균윤우영이종찬
Issue Date
2015-12
Publisher
ChemSusChem
Citation
VOL 8, NO 24-4138
Abstract
Solid polymer electrolytes (SPEs) for all-solid-state lithium-ion batteries are prepared by simple one-pot polymerization induced by ultraviolet (UV) light using poly(ethylene glycol) methyl ether methacrylate (PEGMA) as an ion-conducting monomeric unit and tannic acid (TA)-based crosslinking agent and plasticizer. The crosslinking agent and plasticizer based on natural resources are obtained from the reaction of TA with glycidyl methacrylate and glycidyl poly(ethylene glycol), respectively. Dimensionally stable free-standing SPE having a large ionic conductivity of 5.6 x 10(-4) S cm(-1) at room temperature can be obtained by the polymerization of PEGMA into P(PEGMA) with a very small amount (0.1 wt%) of the crosslinking agent and 2.0 wt% of the plasticizer. The ionic conductivity value of SPE with a crosslinked structure is one order of magnitude larger than that of linear P(PEGMA) in the waxy state.
URI
http://pubs.kist.re.kr/handle/201004/71136
ISSN
1864-5631
Appears in Collections:
KIST Publication > Article
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