Preparation and characterization of hot-pressed Li+ ion conducting PEO composite electrolytes

Baltic Polymer Symposium 2015

材料科学;化学

Jurkane, A.^1 ; Gaidukov, S.^1

Institute of Polymer Materials, Faculty of Material Science and Applied Chemistry, Riga Technical University, P.Valdena Street 3, Riga

LV-1048, Latvia^1

关键词: Composite electrolytes;    Hot pressing method;    Polyethylene oxide (PEO);    Polymer composite electrolytes;    Polymer electrolyte;    Polymeric composites;    Thermal and mechanical properties;    Trifluoromethanesulfonate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/111/1/012016/pdf
DOI  :  10.1088/1757-899X/111/1/012016

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Preparation and characterization of hot-pressed Li+ion conducting Polyethylene oxide (PEO) composite electrolytes are discussed in this paper. Lithium trifluoromethanesulfonate with linear formula CF3SO3Li is selected as Li+ion source for polymer composite electrolyte processing. Polyethylene oxide as matrix for polymer electrolyte is selected, because of its cation solvatation and salt complexes formation partibility. Nano-sized fillers such as carbon nanotube (CNT) and graphene (GR) are introduced to polymeric composite to improve PEO electrolyte mechanical properties. The composites were prepared from PEO, CF3SO3LP CNT and GR by solution casting and by hot-pressing method. Influence of CF3SO3LP CNT and GR concentrations on the electrical, thermal and mechanical properties of PEO composite is investigated and discussed. The additives addition to the PEO matrix improves the electrical, thermal and mechanical properties of the composite. The crystallinity of the PEO decreases.