Two‐dimensional MXenes for lithium‐sulfur batteries

By Chao Zhang, Linfan Cui, Sina Abdolhosseinzadeh, J. Heier. InfoMat, 2020

253 citations recorded by the source corpus.

Rechargeable lithium-sulfur (Li-S) batteries have attracted significant research attention due to their high capacity and energy density. However, their com-mercial applications are still hindered by challenges such as the shuttle effect of soluble lithium sulfide species, the insulating nature of sulfur, and the fast capacity decay of the electrodes. Various efforts are devoted to address these problems through questing more conductive hosts with abundant polysulfide chemisorption sites, as well as modifying the separators to physically/chemi-cally retard the polysulfides migration. Two dimensional transition metal carbides, carbonitrides and nitrides, so-called MXenes, are ideal for confining the polysulfides shuttling effects due to their high conductivity, layered structure as well as rich surface terminations. As such, MXenes have thus been widely studied in Li-S batteries, focusing on the conductive sulfur hosts, polysulfides interfaces, and separators. Therefore, in this review, we summarize the significant progresses regarding the design of multifunctional MXene-based Li-S batteries and discuss the solutions for improving electrochemical performances in detail. In addition, challenges and perspectives of MXenes for Li-S batteries are also outlined.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/fee4ef0c8005fd819a68f5dae8699c83d9a1c434

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In Electrical and Electronic Engineering

In Materials Chemistry

Citations in the corpus

Advanced energy materials for flexible batteries in energy storage: A review (2020, methodology): “The paper substrates assembled by 2D graphene and MXene nanosheets present a popular choice to wrap active materials.(252,253) For instance, graphene and MXene paper are selected as a scaffold to load V2O5, 254 LiFePO4, 255 and silicon,(256) leading to improved battery performances.”