Unlocking veiled oxygen redox in Na-based earth-abundant binary layered oxide

2021 ◽  
Author(s):  
Myungkyu Kim ◽  
Hyungjun Kim ◽  
Maenghyo Cho ◽  
Duho Kim
Keyword(s):  
Energy Density ◽  
Transition Metal ◽  
Redox Reactions ◽  
Low Energy ◽  
Layered Oxides ◽  
Layered Oxide ◽  
Earth Abundant

Oxygen-redox reactions (ORRs) in Na-based transition metal (TM) layered oxides have attracted a great deal of attention as a means of overcoming the intrinsic low energy density of the cathodes...

A new lithium diffusion model in layered oxides based on asymmetric but reversible transition metal migration

2020 ◽  
Vol 13 (4) ◽  
pp. 1269-1278 ◽  
Author(s):  
Kyojin Ku ◽  
Byunghoon Kim ◽  
Sung-Kyun Jung ◽  
Yue Gong ◽  
Donggun Eum ◽  
...  
Keyword(s):  
Transition Metal ◽  
Diffusion Model ◽  
Layered Oxides ◽  
Layered Oxide ◽  
Reversible Transition ◽  
Lithium Diffusion ◽  
Metal Migration

We propose a new lithium diffusion model involving coupled lithium and transition metal migration, peculiarly occurring in a lithium-rich layered oxide.

PO43− polyanion-doping for stabilizing Li-rich layered oxides as cathode materials for advanced lithium-ion batteries

2014 ◽  
Vol 2 (20) ◽  
pp. 7454-7460 ◽  
Author(s):  
H. Z. Zhang ◽  
Q. Q. Qiao ◽  
G. R. Li ◽  
X. P. Gao
Keyword(s):  
Energy Density ◽  
Transition Metal ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Metal Cations ◽  
Layered Oxides ◽  
Transition Metal Cations

PO43− polyanion-doped Li-rich layered oxides offer excellent energy density retention during long cycling due to the stronger anion bonding of PO43− polyanions to transition metal cations.

Li- and Mn-rich layered oxide cathode materials for lithium-ion batteries: a review from fundamentals to research progress and applications

2018 ◽  
Vol 3 (5) ◽  
pp. 748-803 ◽  
Author(s):  
Hongge Pan ◽  
Shiming Zhang ◽  
Jian Chen ◽  
Mingxia Gao ◽  
Yongfeng Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Research Progress ◽  
Layered Oxides ◽  
Layered Oxide ◽  
Oxide Cathode

Li- and Mn-rich layered oxides (LMRO) have drawn much attention for application as cathode materials for lithium-ion batteries due to their high-energy density of over 1000 W h kg−1.

Effects of doping high-valence transition metal (V, Nb and Zr) ions on the structure and electrochemical performance of LIB cathode material LiNi0.8Co0.1Mn0.1O2

2021 ◽  
Author(s):  
Yan-Hui Chen ◽  
Jing Zhang ◽  
Li Yi ◽  
Yongfan Zhang ◽  
Shuping Huang ◽  
...  
Keyword(s):  
Energy Density ◽  
Transition Metal ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
High Energy ◽  
High Energy Density ◽  
Layered Oxides ◽  
Valence Transition ◽  
Capacity Degradation ◽  
Potential Decay

Ni-rich layered oxides, like LiNi0.8Co0.1Mn0.1O2 (NCM811), have been widely investigated as cathodes for high energy density. However, gradual structural transformation during cycling can lead to capacity degradation and potential decay...

scholarly journals Origin of reversible oxygen redox reactions in high energy density layered oxides

2021 ◽  
pp. 100508
Author(s):  
Gwanghyeon Choi ◽  
Jaewoon Lee ◽  
Sojung Koo ◽  
Sangeon Park ◽  
Duho Kim
Keyword(s):  
Energy Density ◽  
Redox Reactions ◽  
High Energy ◽  
High Energy Density ◽  
Layered Oxides

Transportation: Fuel Energies

2017 ◽  
Author(s):  
Peter Rez
Keyword(s):  
Energy Density ◽  
Fossil Fuels ◽  
High Energy ◽  
Ease Of Use ◽  
Low Energy ◽  
High Energy Density ◽  
Nuclear Fuels ◽  
Liquid Hydrocarbons ◽  
Transportation Fuel ◽  
Journey Time

Transportation efficiency can be measured in terms of the energy needed to move a person or a tonne of freight over a given distance. For passengers, journey time is important, so an equally useful measure is the product of the energy used and the time taken for the journey. Transportation requires storage of energy. Rechargeable systems such as batteries have very low energy densities as compared to fossil fuels. The highest energy densities come from nuclear fuels, although, because of shielding requirements, these are not practical for most forms of transportation. Liquid hydrocarbons represent a nice compromise between high energy density and ease of use.

Dimers, monomers and pentacoordination in a series of earth-abundant transition metal dibromido complexes supported by a neutral SNS ligand framework

Polyhedron ◽  
2018 ◽  
Vol 154 ◽  
pp. 252-258
Author(s):  
Yasmeen Hameed ◽  
Sarah Ouanounou ◽  
Titel Jurca ◽  
Bulat Gabidullin ◽  
Ilia Korobkov ◽  
...  
Keyword(s):  
Transition Metal ◽  
Earth Abundant ◽  
Sns Ligand

Improved interfacial chemistry and enhanced high voltage-resistant capability of in-situ polymerized electrolyte for LiNi0.8Co0.15Al0.05O2-Li batteries

2021 ◽  
Author(s):  
Yue Ma ◽  
Qifang Sun ◽  
Zhenyu Wang ◽  
Su Wang ◽  
Ying Zhou ◽  
...  
Keyword(s):  
Energy Density ◽  
High Voltage ◽  
Lithium Batteries ◽  
Interfacial Chemistry ◽  
Layered Oxide ◽  
Li Batteries

Ni-rich layered oxide LiNi0.8Co0.15Al0.05O2 (NCA) is one of the most promising cathode candidates for higher energy density lithium batteries. However, the extensive application of NCA is hindered due to the...

Engineering Sulfur Vacancies into Fe9S10 Nanosheet Arrays for Efficient Alkaline Hydrogen Evolution

Nanoscale ◽  
2021 ◽  
Author(s):  
Wenjun He ◽  
Jianing Cheng ◽  
Yaohui Gao ◽  
Caichi Liu ◽  
Jianling Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Metal Sulfides ◽  
Transition Metal Sulfides ◽  
Nanosheet Arrays ◽  
Excellent Activity ◽  
Earth Abundant ◽  
Iron Based

The development of earth-abundant transition metal sulfides electrocatalysts with excellent activity and stability toward alkaline hydrogen evolution reaction (HER) is critical but challenging. Iron-based sulfides are favored due to their...

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