摘要
制备了SPA/PVA/LiClO4凝胶电解质和固体导电膜。结果表明,LiClO4和SPA的质量分数分别为0.9%和3.5%的水凝胶电导率可达8.30×10-3S/cm;SPA、PVA、LiClO4的浓度分别为3.75g/100mL、3.75g/100mL和0.9g/100mL的水凝胶电解质电导率可达8.42×10-3S/cm,经过流延法制备的固体薄膜表面电导率为3.00×10-10S/cm,体积电导率9.8×10-8S/cm,证明固体膜具有固体电解质性能。固体膜的红外光谱分析表明PVA中的-OH基与SPA中的-COO-有氢键作用,使树脂对Li+,Na+的作用减弱,加速了Li+,Na+在弱交联网络中的络合-解离过程,提高了离子的迁移速率,从而实现了离子导电。
The solid electrical conductive film of SPA/PVA/LiClO4 was prepared by flowing extend method. The results show that the electrical conductivity of hydrogel with 0.9 g LiClO4/100 mL, 3.75 g SPA/100 mL and 3.75 g PVA/100 mL is 8.42×10-3 S/cm; the surface and volume conductivity of solid state film with 1.5 g SAP, 1.5 g PVA and 0.36 g LiClO4 respectively are 3.00×10-10 S/cm and 9.8×10-8 S/cm. FTIR spectra show hydrogen bond of -OH in PVA with -COO in SPA performs, weakens the interaction between -COO- and Li+ or Na+, which accelerate exchanges of combination to ionization and ions moving rate under electric field so that ions conducting have been realized.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2003年第5期101-104,共4页
Polymer Materials Science & Engineering
关键词
聚丙烯酸钠吸水树脂
聚乙烯醇
高氯酸锂
聚电解质
制备
性能
电导率
固体电解质导电膜
sodium polycrylate absorbent resin
polyelectrolyte
electrical conductivity
polyvinyl alcohol
lithium perchlorate
SPA/PVA/LiClO_4 electrical conductive membrane
