摘要
由于凝胶聚合物电解质具有较好的机械加工性能和安全性能以及较高的室温离子电导率,因而得到广泛的研究与应用。综述了聚偏氟乙烯、聚丙烯腈、聚甲基丙烯酸甲酯和聚氧化乙烯等锂离子电池凝胶聚合物电解质近几年的研究进展,主要介绍了这些凝胶聚合物电解质体系性能的优缺点以及对其改性研究的各种探索。特别是对目前研究最广泛的聚偏氟乙烯体系的改性进行了较为详细的论述。其中,添加无机纳米粒子的改性是目前的研究热点,是凝胶聚合物电解质的发展趋势,并对凝胶聚合物电解质的未来发展作了展望。
The gel polymer electrolyte(GPE) was studied and applied widely because of its good mechanical properties and safety as well as higher ionic conductivities at room temperature.The progresses of GPE such as polyethylene oxide(PEO ),polyvinylidene fluoride(PVDF ),polymethyl methacrylate(PMMA ) and polyacrylonitrile(PAN) for lithium-ion batteries are summarized.The advantages and disadvantages of these gel systems are introduced and a variety of modification of these systems is mainly focused on.Especially,the development of PVDF system which is a current research focus for GPEs is discussed here in details.Moreover,GPE doped with inorganic nano particles is the key research point recently and the study direction for GPEs in future.
出处
《化学通报》
CAS
CSCD
北大核心
2010年第5期414-418,共5页
Chemistry
基金
山东省优秀中青年科学家科研奖励基金项目(2005BS09002)资助
关键词
凝胶聚合物电解质
锂离子电池
电导率
改性
掺杂
Gel polymer electrolyte(GPE)
Lithium ion batteries
Conductivity
Modification
Doping