Interfacial Chemistry in Solid-State Lithium-Ion and Lithium Metal Batteries and Beyond

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Background

Due to the energy crisis and environmental pollution, energy storage materials and systems are becoming more and more important in our daily life. Lithium-ion batteries (LiBs) as promising energy storage systems have been extensively investigated and achieved great success not only in our portable device but also in electric vehicles. However, the low energy density and the safety issues related to the application of flammable liquid organic electrolytes of the state-of-the-art LiBs cannot meet the ever-increasing energy demand and the safety requirement of users. Therefore, developing high energy density and safe LiBs is highly desirable. Solid-state lithium-ion batteries and solid-state lithium metal batteries eliminating the use of flammable liquid organic electrolytes are promising candidates for practical applications in long-range electric vehicles with high safety properties. In recent years, more and more research interests have been focused on solid-state batteries.

Solid-state lithium-ion and lithium metal batteries own so many advantages including energy density and safety, however, they still suffer from the severe interfacial challenges that hinder their practical applications. These interfacial challenges include (i) poor interfacial contact, (ii) lithium dendrite formation, (iii) incompatible solid-state electrolyte/electrode interface, (iv) space charge layer, etc. Thus, the interfacial chemistry and interfacial properties are critical for the electrochemical performance of solid-state lithium-ion batteries and lithium metal batteries. Therefore, we propose a title on “Interfacial Chemistry in Solid-State Lithium-Ion and Lithium Metal Batteries” for the articles collection aiming to provide and share valuable and practical strategies, designs and mechanisms of interface chemistry for the community of solid-state batteries research field.

The scope of this research topic mainly includes the interface and sub-interface studies of solid-state lithium batteries and beyond, including the interface engineering, in-situ/ex-situ interface characterization, and the integrations of solid-state electrolyte and electrode. The interfacial chemistry and properties are the most crucial factors that influence the electrochemical performance of solid-state batteries. So, we are highly interested in research papers and review papers about addressing and discussing the interfacial challenges in solid-state lithium batteries. Other article types such as mini-reviews and perspectives are also welcome.

Keywords: Interface, Solid-state batteries, Solid-state electrolytes, Lithium metal batteries

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