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   Articles with "li2o2" as a keyword



Single‐Atom Catalyst Induced Amorphous Li2O2 Layer Enduring Lithium–Oxygen Batteries with High Capacity

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recommendations! Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202410091

Abstract: Aprotic lithium–oxygen batteries (LOBs) may deliver exceptionally high energy density but struggle to attain rapid reversibility and substantial capacity simultaneously, due to typical surface or solution‐formed insulating solid Li2O2. Tuning the structure of Li2O2 to… read more here.

Keywords: lithium oxygen; capacity; high capacity; single atom ... See more keywords

The origin of potential rise during charging of Li-O2 batteries

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recommendations! Published in 2017 at "Science China Chemistry"

DOI: 10.1007/s11426-017-9085-5

Abstract: When aprotic Li-O2 batteries recharge, the solid Li2O2 in the positive electrode is oxidized, which often exhibits a continuous or step increase in the charging potential as a function of the charging capacity, and its… read more here.

Keywords: potential rise; li2o2; charging batteries; rise charging ... See more keywords

An electrochemical investigation of oxygen adsorption on Pt single crystal electrodes in a non-aqueous Li+ electrolyte

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recommendations! Published in 2020 at "Electrochemistry Communications"

DOI: 10.1016/j.elecom.2020.106814

Abstract: Abstract Cyclic voltammetry has been used to probe the initial stages of oxygen reduction and oxidation in lithium-containing dimethyl sulfoxide at well-defined Pt single crystal electrodes in order to elucidate any catalytic effects ascribable to… read more here.

Keywords: oxygen; li2o2; single crystal; surface ... See more keywords

Potassium Doping Facilitated Formation of Tunable Superoxides in Li2O2 for Improved Electrochemical Kinetics.

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recommendations! Published in 2020 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.9b21554

Abstract: Superoxide (O2-) species play a crucial role in determining the charge kinetics for aprotic lithium-oxygen (Li-O2) batteries. However, the growth of O2--rich lithium peroxide (Li2O2) is challenging since O2- is thermodynamically unfavorable and unstable in… read more here.

Keywords: li2o2; tunable superoxides; potassium doping; formation tunable ... See more keywords

True Reaction Sites on Discharge in Li-O2 Batteries.

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recommendations! Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.1c09916

Abstract: In the pursuit of an advanced Li-O2 battery, the true reaction sites in the cathode determined its cell performance and the catalyst design. When the first layer of insulating Li2O2 solid is deposited on the… read more here.

Keywords: li2o2; reaction; true reaction; catalyst design ... See more keywords