Research Topic

Electrocatalysis of Lithium Chalcogenide Batteries

About this Research Topic

Lithium-sulfur (Li-S), lithium-selenide (Li-Se) and lithium-oxygen (Li-O2 ) batteries have been long deemed as promising candidates for next-generation energy storage systems, owing to their high theoretical energy density and low cost. However, both lithium chalcogenide batteries are still challenged by several challenges that hinder their practical application. Over the past decade, significant improvements in Li-S batteries and Li-Se batteries have been halted by the sluggish reaction kinetics. The incomplete transformation and unsatisfactory electrocatalytic activity of chalcogenide redox promoter leads to low material utilization and poor reversibility, resulting in low discharge capacity, undesired rate capability and cycle stability. Similarly, in the field of Li-O2 , the sluggish OER reaction has plagued the field with extremely high charge overpotentials and corresponding electrolyte degradation. The use of an electrocatalyst in Li-O2 has been a much-debated topic with many researchers unclear as to its exact mechanism and role.

The practical application of Li-S, Li-Se, Li-Se/S and Li-O2 batteries are still hindered by numerous challenges, especially on their sluggish redox reaction kinetics. To solve these problems, numerous efforts have been pursued to accelerate electrocatalytic behavior, including sulfur host design, separator modification, interlayer configuration, air cathode-catalyst design, and redox mediators. Of the various strategies, designing high activity catalysts to serve as active sites for fast lithium polychalcogenide (LiPC) conversion reaction is the key role in achieving fast and durable Li-S and Li-Se performances. Similarly, the use of electrocatalysts will reduce the prohibitively high charge potentials during the oxygen evolution reaction of Li-O2 . Moreover, understanding of the electrocatalyst on both OER in Li-O2 and the formation of Li2 S and Li2 Se will clarify future directions.

This Research Topic on electrocatalysis of lithium chalcogenide batteries is expected to provide a forum for battery research communities to discuss the catalyst design in lithium chalcogenide batteries. For this Research Topic, Original Research papers, Reviews, and short communications are welcomed on the following topics:
• Advanced cathode, separator and interlayer for accelerated kinetics of lithium chalcogenide batteries.
• Fundamental understanding of the catalytic effects in lithium chalcogenide batteries.
• Theoretical simulation of the chalcogenide electrodes and catalysts.
• Optimized cell design for high loading, efficient catalysis, and a minimum amount of electrolyte.
• Electrocatalyst with high catalytic activity and long durability.


Keywords: electrocatalyst, conversion reaction, redox reaction kinetics, chalcogenide, lithium-sulfur batteries


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

Lithium-sulfur (Li-S), lithium-selenide (Li-Se) and lithium-oxygen (Li-O2 ) batteries have been long deemed as promising candidates for next-generation energy storage systems, owing to their high theoretical energy density and low cost. However, both lithium chalcogenide batteries are still challenged by several challenges that hinder their practical application. Over the past decade, significant improvements in Li-S batteries and Li-Se batteries have been halted by the sluggish reaction kinetics. The incomplete transformation and unsatisfactory electrocatalytic activity of chalcogenide redox promoter leads to low material utilization and poor reversibility, resulting in low discharge capacity, undesired rate capability and cycle stability. Similarly, in the field of Li-O2 , the sluggish OER reaction has plagued the field with extremely high charge overpotentials and corresponding electrolyte degradation. The use of an electrocatalyst in Li-O2 has been a much-debated topic with many researchers unclear as to its exact mechanism and role.

The practical application of Li-S, Li-Se, Li-Se/S and Li-O2 batteries are still hindered by numerous challenges, especially on their sluggish redox reaction kinetics. To solve these problems, numerous efforts have been pursued to accelerate electrocatalytic behavior, including sulfur host design, separator modification, interlayer configuration, air cathode-catalyst design, and redox mediators. Of the various strategies, designing high activity catalysts to serve as active sites for fast lithium polychalcogenide (LiPC) conversion reaction is the key role in achieving fast and durable Li-S and Li-Se performances. Similarly, the use of electrocatalysts will reduce the prohibitively high charge potentials during the oxygen evolution reaction of Li-O2 . Moreover, understanding of the electrocatalyst on both OER in Li-O2 and the formation of Li2 S and Li2 Se will clarify future directions.

This Research Topic on electrocatalysis of lithium chalcogenide batteries is expected to provide a forum for battery research communities to discuss the catalyst design in lithium chalcogenide batteries. For this Research Topic, Original Research papers, Reviews, and short communications are welcomed on the following topics:
• Advanced cathode, separator and interlayer for accelerated kinetics of lithium chalcogenide batteries.
• Fundamental understanding of the catalytic effects in lithium chalcogenide batteries.
• Theoretical simulation of the chalcogenide electrodes and catalysts.
• Optimized cell design for high loading, efficient catalysis, and a minimum amount of electrolyte.
• Electrocatalyst with high catalytic activity and long durability.


Keywords: electrocatalyst, conversion reaction, redox reaction kinetics, chalcogenide, lithium-sulfur batteries


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

About Frontiers Research Topics

With their unique mixes of varied contributions from Original Research to Review Articles, Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author.

Topic Editors

Loading..

Submission Deadlines

06 December 2020 Manuscript
10 February 2021 Manuscript Extension

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

Loading..

Topic Editors

Loading..

Submission Deadlines

06 December 2020 Manuscript
10 February 2021 Manuscript Extension

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

Loading..
Loading..

total views article views article downloads topic views

}
 
Top countries
Top referring sites
Loading..