In this review, we summarize recent advances in the fundamental understanding of the O 2 electrochemistry in Li O 2 batteries, including the O 2 reduction to Li 2 O 2 on discharge and the reverse Li 2 O 2 oxidation on recharge and factors that exert strong influences on the redox of O 2 /Li 2 O 2.
Upon charging of Li O 2 batteries, Li 2 O 2 formed in the previous discharge process is oxidized to O 2 and Li + ions. Because of the poor electrical conductivity of Li 2 O 2, it is difficult to efficiently oxidize the solid Li 2 O 2 on charging, which presents a major challenge for the realization of Li O 2 batteries with high rate capability.
The remarkable energy density of Li–O 2 batteries is mainly due to two factors: first, the cathode material, oxygen, is obtained from the surrounding environment instead of being kept within the battery, resulting in a decrease in the weight of the completed battery.
The Li O 2 battery has the potential to deliver extremely high energy densities. However, the practical use of Li O 2 batteries has been restricted by their high charge overpotential, low energy efficiency, and poor cyclability, which are attributable to the formation of solid and insulating Li 2 O 2.
Alkali metal–O 2 battery systems demonstrate a promising prospect as a high-energy density solution regarding the increasing demand of mankind for energy storage. Combining a metallic negative electrode with a breathing oxygen electrode, a metal–O 2 cell can be considered as a half battery/half fuel cell system.
TU Wien has now succeeded in developing an oxygen-ion battery that has some important advantages. Although it does not allow for quite as high energy densities as the lithium-ion battery, its storage capacity does not decrease irrevocably over time: it can be regenerated and thus may enable an extremely long service life.
The Li O 2 battery has the potential to deliver extremely high energy densities. However, the practical use of Li O 2 batteries has been restricted by their high charge …
Along with battery manufacturers, automakers are developing new battery designs for electric vehicles, paying close attention to details like energy storage effectiveness, …
Alkali metal–O 2 battery systems demonstrate a promising prospect as a high-energy density solution regarding the increasing demand of mankind for energy storage. …
In 1999, with the commercialization of LiCoO 2, the anionic redox of layered transition oxides was realized in the fully delithiated Li x CoO 2.Short O–O bonds were revealed by de-lithiated Li x …
Importantly, there is an expectation that rechargeable Li-ion battery packs be: (1) defect-free; (2) have high energy densities (~235 Wh kg −1); (3) be dischargeable within 3 h; (4) have charge/discharges cycles greater …
Controlling with 3.6 V charging cut-off voltage, Li-O 2 cell performs high areametric capacity (2.5 mAh/cm 2), remarkable energy efficiency (∼0.47 V overpotential), …
"Noon Energy''s technology complements the vision of our new $1.5 billion Sustainability Fund as the world works to meet energy demand while lowering emissions." In …
The new battery concept is not intended for smartphones or electric cars, because the oxygen-ion battery only achieves about a third of the energy density that one is …
Rechargeable Li–O2 batteries have amongst the highest formal energy and could store significantly more energy than other rechargeable batteries in practice if at least a …
Controlling with 3.6 V charging cut-off voltage, Li-O 2 cell performs high …
This article elucidates the fundamental principles of lithium–oxygen batteries, analyzes the primary issues currently faced, and summarizes recent research advancements …
Molecular orbital principles are convenient for an atomic-level understanding …
Non-aqueous Metal–Oxygen Batteries: Past, Present, and Future Maxwell D. Radin and Donald J. Siegel 1 What Is the Motivation for High Energy-Density Batteries? A metal-oxygen battery …
Metal-air batteries with high energy densities have achieved worldwide attention in recent years, such as Mg-air, Li-air, and Al-air batteries. 1–7 Among them, Zn-air batteries …
The oxygen-ion battery could be an excellent solution for large energy storage systems, for example to store electrical energy from renewable sources. Ceramic materials as …
Recent developments of Li-excess transition-metal oxides, which deliver a large capacity of more than 200 mAh/g using an extra redox reaction of oxygen, introduce new …
Lithium-ion batteries are key energy-storage devices for a sustainable society. The most widely used positive electrode materials are LiMO2 (M: transition metal), in which a …
Alkali metal–O 2 battery systems demonstrate a promising prospect as a high …
Researchers from the Vienna University of Technology have discovered an interesting new battery technology: the oxygen-ion battery (OIB) based on ceramic materials. …
The Li O 2 battery has the potential to deliver extremely high energy densities. …
This article elucidates the fundamental principles of lithium–oxygen batteries, …
Molecular orbital principles are convenient for an atomic-level understanding of how reversible oxygen-redox reactions occur in bulk, providing a solid foundation toward …
Rechargeable Li–O2 batteries have amongst the highest formal energy and …