聚环氧乙烷固态聚合物电解质基室温固态锂金属电池的研究进展  

Research Progress on Room-temperature Solid-state Lithium Metal Batteries with Poly(ethylene oxide)-based Solid Polymer Electrolytes

作　　者：张仕杰 王朵 崔浩然 张雅岚 张浩 苑志祥 韩鹏献[2,4,5] 姚树玉 黄浪[2,4,5] 张建军 崔光磊[2,4,5] Zhang Shijie;Wang Duo;Cui Haoran;Zhang Yalan;Zhang Hao;Yuan Zhixiang;Han Pengxian;Yao Shuyu;Huang Lang;Zhang Jianjun;Cui Guanglei(College of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 266590;Qingdao Industrial Energy Storage Research Institute,Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao 266101;Qingdao No.2 Middle School of Shandong Province,Qingdao 266061;Shandong Energy Institute,Qingdao 266101;Qingdao New Energy Shandong Laboratory,Qingdao 266101)

机构地区：[1]山东科技大学材料科学与工程学院,青岛266590 [2]中国科学院青岛生物能源与过程研究所青岛储能产业技术研究院,青岛266101 [3]山东省青岛第二中学,青岛266061 [4]山东能源研究院,青岛266101 [5]青岛新能源山东省实验室,青岛266101

出　　处：《化学学报》2024年第6期690-706,共17页Acta Chimica Sinica

基　　金：国家重点研发计划(No.2023YFC2812700);国家自然科学基金(Nos.52073298,52273221);中国科学院青年创新促进会(No.2020217);青岛新能源山东省实验室开放课题(No.QNESL OP202312)资助。

摘　　要：锂离子电池已被广泛应用于国民经济的诸多领域,然而采用液态电解液的锂离子电池可能会存在电解液泄漏、挥发、燃烧甚至爆炸等潜在安全隐患.相对比而言,采用固态电解质的固态锂电池具有高安全特性,已成为科研界和产业界研发的热点和重点.作为固态锂电池的核心部件,固态电解质至关重要.聚环氧乙烷(PEO)固态聚合物电解质(SPE)具有较高的柔韧性、优良的加工性和良好的界面接触性,且与锂金属负极兼容性好,是固态锂金属电池(SSLB)相对理想的电解质材料.但PEO固态聚合物电解质室温离子电导率偏低,严重制约了其在室温固态聚合物锂金属电池领域的进一步广泛发展和应用.经过国内外科研人员等的不断努力,截至目前PEO固态聚合物电解质基室温SSLB已经取得了相当大的研究进展.从纳米填料复合、三维(3D)骨架增强、分子水平调节、与其他聚合物共混及正极内部构建离子快速传输通道等策略出发,对PEO固态聚合物电解质用于室温SSLB的研究进展进行了详细阐述.最后还对PEO固态聚合物电解质基室温SSLB所面临的挑战以及未来发展趋势进行了系统展望.Lithium-ion batteries are widely used in various fields of the national economy.However,those with liquid elec-trolytes may pose potential safety hazards,such as electrolytes leakage,volatilisation,combustion and even explosion.In contrast,solid-state lithium batteries with solid electrolyte exhibit high safety characteristics and have become a research and development hotspot in the scientific and industrial sectors.The design and development of solid-state electrolytes are crucial for solid-state lithium batteries.Poly(ethylene oxide)(PEO)solid polymer electrolyte(SPE)is an excellent electrolyte mate-rial for solid-state lithium-metal batteries(SSLBs)due to its high flexibility,excellent processability,good interfacial contact and compatibility with lithium-metal anode.However,the low room temperature ionic conductivity of PEO-based solid pol-ymer electrolytes has seriously restricted its further development and application in the field of room temperature solid poly-mer lithium metal batteries.Through the continuous efforts of researchers at home and abroad,considerable progress has been made in the development of room-temperature solid-state lithium metal batteries SSLBs with PEO-based solid polymer electrolytes.A detailed description of the research progress room-temperature SSLBs with PEO-based solid-state polymer electrolytes is provided.The strategies covered include nanofiller composites,three-dimensional(3D)skeleton enhancement,molecular level modulation,blending with other polymers,and constructing fast ion transport channels inside the cathode.Finally,a systematic outlook on the challenges and future development trends room-temperature SSLBs with PEO-based solid polymer electrolyte are presented.

关 键 词：聚环氧乙烷 固态聚合物电解质 室温 高效离子传输 固态锂金属电池 

分 类 号：TM912[电气工程—电力电子与电力传动] O646[理学—物理化学]