摘要
研究了聚苯乙烯含量对聚氧乙烯－聚氧丙烯－聚苯乙烯多嵌段聚合物的力学性能及其与ＬｉＣｌＯ４络合物的离子导电性能的影响；并以电导率较高的络合物为电解质，Ｎａ１＋ｘＶ３Ｏ８复合物和Ｌｉ片分别为正、负极组装了薄型锂电池并测定其放电性能。
The mechanical properties of polyoxyethylenepolyoxypropylenepolystyrene(PEOPPOPS) multiblock copolymer and conductivity of their LiClO_4 complex were investigated. The tensile strength of the multiblock copolymer reaches a maximum value of about 10.9 MPa, when the PS content is about 5%. Introduction of PPO and PS blocks lowers the crystallinity of PEO. As PEO content increases, the conductivity of LiClO4 complex of the multiblock copolymer increases. The conductivity at room temperature can reaches 5.8×10-4 S/cm. The conductivity increases with the temperature. A lithium battery has been constructed using LiClO_4 complex of the multiblock copolymer as the electrolyte and Na_(1+x)V_3O_8 composite as the cathode, and lithium metal as anode. The performance of the battery has been investigated at 100 ℃.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1998年第3期130-132,共3页
Polymer Materials Science & Engineering
基金
国家自然科学基金
关键词
聚氧乙烯
聚苯乙烯
固体电解质
锂电池
导电性
polyoxyethylene
polystyrene
solid polymer electrolyte
lithium battery
