Recently, Professor Liu Jinping's research team from the School of Chemistry, Chemical Engineering and Life Sciences of WUT published a review paper entitled “Filler-Integrated Composite Polymer Electrolyte for Solid-State Lithium Batteries” in Advanced Materials, an international top-level journal of materials. Liu Shuailei, a master student, is the first author of the paper.

Currently, lithium-ion batteries have been widely applied into all aspects of people’s daily life, and this technology won the 2019 Nobel Prize in chemistry as well. However, with the rise of cutting-edge fields like new energy vehicles, smart grids, the Internet of things, the traditional lithium-ion batteries are no longer able to meet the application needs. On the one hand, organic liquid electrolytehas inherent safety hazards that it is toxic, flammable, easy to leak out, and has poor thermal stability; on the other hand, researchers found it difficult to break through the bottleneck of the energy density of liquid lithium-ion batteries. Therefore,the development of solid-state lithium batteries has become one of the important solutions to address the above key problems, thuscapturing extensive attention from the academic and industrial circles in recent years. Among all the solutions, designing a new solid electrolyte with excellent dendrite growth resistance and intrinsic safety is the key to promote the development of high-energy solid-state lithium batteries.

Professor Liu Jinping’s research team recently focused on the research of solid-state energy storage devices, designed a new high-salt polymer electrolyte system, and improved the ionic conductivity of solid polymer electrolyte in ambient air (> 10-4 s cm-1). Moreover, they developedthe ion electron double conduction sequential electrode, andfurther proposed and constructed the integrated solid-state battery, thus guaranteeing the three-dimensional electrode-electrolyte interface while maximizing the energy density and power density of the device (Angew. Chem. Int. ed., 2021, 60, 12931; advanced materials, 2021, 33, 2004959). Based on the previous research foundation and understanding, in this paper, the research team systematically discussed the latest research in the field of filler-integrated composite polymer electrolyte from the perspective of interface design, and proposed the design and regulation principles and potential research directions.

Liu Jinping, chief professor of chemistry and doctoral supervisor of WUT, is the Fellow of the Royal Society of Chemistry (FRSC). He has long been engaged in research on solid electrolytes and solid batteries, water batteries and supercapacitors.

The website link to the paper：https://onlinelibrary.wiley.com/doi/10.1002/adma.202110423

Rewritten by: Sun Zhongyuan

Edited by: Li Tiantian

Reviewed by: Xie Zhizhong

Source: School of Chemistry, Chemical Engineering and Life Sciences