Topics

Air-induced Degradation and Electrochemical Regeneration for the Performance of Layered Ni-Rich Cathodes.

07:00 EST 8th November 2019 | BioPortfolio

Summary of "Air-induced Degradation and Electrochemical Regeneration for the Performance of Layered Ni-Rich Cathodes."

Nickel-rich layered oxides are promising cathodes for power batteries owing to their high capacity and low cost. However, during the production, storage, and application of nickel-rich cathodes, especially in case the Ni content exceeds 70%, their surfaces almost inevitably react with ambient air to form electrochemical inert Li2CO3 and LiOH, leading to significant capacity loss and therefore imposing significant hurdle to practical applications of nickel-rich cathodes. Here, we reveal surface structures and electrochemical properties of the exposed LiNi0.8Co0.15Al0.05O2 (NCA) cathodes and investigate systematically the impact of exposure humidity, temperature, and time on NCA cathodes. We demonstrate that an introduction of a 3.0-4.5 V galvanostatic cycling operation at initial cycles can remarkably regenerate the subsequent 3.0-4.3 V battery performances of the exposed cathode. This work represents a facile method to regenerate the battery performance of surface degraded nickel-rich cathodes, opening up an avenue in fulfilling efficient production, storage, and application of nickel-rich cathode materials.

Affiliation

Journal Details

This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252
Pages:

Links

DeepDyve research library

PubMed Articles [22704 Associated PubMed Articles listed on BioPortfolio]

Understanding the role of aluminium in determining the surface structure and electrochemical performance of layered cathodes.

The electrochemical properties of layered cathodes can be enhanced by doping with aluminium. However, understanding of the underlying mechanism of Al ion behaviour is deficient, which obstructs its fu...

The Role of Manganese in Lithium- and Manganese-rich Layered Oxides Cathodes.

Lithium-rich transition-metal-oxide cathodes are among the most promising materials for the next lithium-ion-batteries generation because they operate at high voltages and deliver high capacities. How...

Enhanced K-ion kinetics in a layered cathode for potassium ion batteries.

A layered cathode for K-ion storage was achieved using electrochemical ion-exchange. It delivers a large specific capacity, superior rate performance and excellent cycling performance. Interestingly, ...

Strongly Coupled Pyridine-V O ·nH O Nanowires with Intercalation Pseudocapacitance and Stabilized Layer for High Energy Sodium Ion Capacitors.

Developing pseudocapacitive cathodes for sodium ion capacitors (SICs) is very significant for enhancing energy density of SICs. Vanadium oxides cathodes with pseudocapacitive behavior are able to offe...

Revealing of the Activation Pathway and Cathode Electrolyte Interphase Evolution of Li-rich 0.5Li2MnO3•0.5LiNi0.3Co0.3Mn0.4O2 Cathode by In-Situ Electrochemical Quartz Crystal Microbalance.

The first-cycle behavior of layered Li-rich oxides, including Li2MnO3 activation and cathode electrolyte interphase (CEI) formation, significantly influences their electrochemical performance. However...

Clinical Trials [7518 Associated Clinical Trials listed on BioPortfolio]

To Compare Ridge Preservation Technique Using Leukocyte Platelet Rich Fibrin (L-PRF) and Freeze-dried Bone Allograft (FDBA) Layered Technique vs L-PRF/FDBA and L-PRF Alone in Influencing Quantity and Quality of New Bone Formation in Grafted Extraction Soc

This study will evaluate the effect of Leukocyte Platelet Rich Fibrin and freeze-dried bone allograft in a layered technique on the bone quantity and quality following socket grafting in p...

Effects of the Use of Platelet-rich Fibrin on Bone Regeneration After Impacted Third Molar Surgery

The purpose of this study is to evaluate the bone regeneration after impacted third molar surgery on split mouth design using platelet-rich fibrin.

Electrochemical Skin Conductance in Evaluation of Chronic Neuropathy électrochimique cutanée

Use of cutaneous electrochemical conductance for preclinical screening of small-caliber nerve fibers

Platelet-rich Plasma for Menical Tear

Meniscal injuries are a common pathology among athletes, and have an impact on the daily or sporting practice of patients. Surgical approach implies sometimes heavy consequences. Platelet-...

Patellar Tendon Regeneration With Platelet-rich Plasma

The central third of the patellar tendon is used as a donor site for anterior cruciate ligament (ACL) reconstruction. After months or years the harvest site partially regenerates. The rege...

Medical and Biotech [MESH] Definitions

A preparation consisting of PLATELETS concentrated in a limited volume of PLASMA. This is used in various surgical tissue regeneration procedures where the GROWTH FACTORS in the platelets enhance wound healing and regeneration.

A scanning probe microscopy technique that uses an ultramicroelectrode as the scanning probe that simultaneously records changes in electrochemical potential as it scans thereby creating topographical images with localized electrochemical information.

An electrochemical technique for measuring the current that flows in solution as a function of an applied voltage. The observed polarographic wave, resulting from the electrochemical response, depends on the way voltage is applied (linear sweep or differential pulse) and the type of electrode used. Usually a mercury drop electrode is used.

Membrane transporters that co-transport two or more dissimilar molecules in the opposite direction across a membrane. Usually the transport of one ion or molecule is against its electrochemical gradient and is "powered" by the movement of another ion or molecule with its electrochemical gradient.

Membrane transporters that co-transport two or more dissimilar molecules in the same direction across a membrane. Usually the transport of one ion or molecule is against its electrochemical gradient and is "powered" by the movement of another ion or molecule with its electrochemical gradient.

Quick Search


DeepDyve research library

Searches Linking to this Article