School of Physical Science and Technology Assistant Professor Liu Wei’s research group recently published a review tilted “Practical challenges and future perspectives of all-solid-state lithium metal batteries” in the internationally famous journal Chem.
As energy storage devices, lithium-ion batteries have become fundamental building blocks of modern society for their high energy density, superior cycling stability and light weight. However, state-of-the-art lithium-ion batteries cannot satisfy the increasing demand for higher energy density in large-scale energy storage applications. As a result, with new chemistries of both electrode and electrolyte materials, advanced lithium-based batteries with higher energy density, longer cycle life and higher safety should be developed urgently. Particularly, developing all-solid-state lithium metal batteries is a hot research topics. The application of solid state electrolytes by replacing liquid electrolyte in the lithium batteries could fundamentally eliminate the safety concerns. However, the sluggish Li-ion transport of solid state electrolytes as well as the high impedances at the solid-state electrolytes and electrode interface are the main factors impeding the commercialization process of all-solid-state lithium metal batteries.
The authors review the most recent progress and well-developed strategies to address the sluggish Li-ion transport of solid state electrolytes as well as the high impedance at the solid-state electrolytes/electrode interface. Furthermore, they give an overview of the recent advances and critical challenges for all-solid-state lithium metal batteries based on Li-intercalation compounds, sulfur and oxygen cathode share prospects of their future developments for next-generation energy storages. This review provides valuable reference for the commercialization of all-solid-state lithium metal batteries.
Postdoc Xia Shuixin of Liu group is the first author and undergraduate Wu Xinsheng is the co-first author. Assistant Professor Liu Wei and Adjunct Professor Cui Yi are the corresponding authors. ShanghaiTech University is the first responsible institution.
Schematic diagram of the development trends of lithium batteries from conventional lithium ion battery to all-solid-state lithium ion batteries using solid-state electrolyte, and then to advanced batteries of all-solid-state lithium metal batteries, all-solid-state lithium-sulfur batteries and all-solid-state lithium-air batteries based on Li metal anode.