Chemical activation of nanocrystalline LiNbO3 anode for improved storage capacity in lithium-ion batteries

Sanad, Moustafa M.S.; Toghan, Arafat

doi:10.1016/j.surfin.2021.101550

Cited by 10 publications

(4 citation statements)

References 56 publications

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“…2c, the peaks of Nb 3d at 209.2 eV and 206.5 eV correspond to the characteristic peaks of 3d 3/2 and 3d 5/2 orbits, in which the fitted peaks of 209.78 eV and 207.07 eV corresponding to Nb 5+ ions and the refined peaks of 209.13 eV and 206.44 eV ascribe to Nb 4+ ions. 40 In the O 1s spectrum of P-KNO (Fig. 2d), the peak at 529.4 eV is assigned to the characteristic lattice oxygen (O L ) of potassium niobate and the peak at 530.7 eV indexes to the surface adsorbed oxygen or oxygen vacancy (O V ).…”

Section: Resultsmentioning

confidence: 99%

A phosphorus-doped potassium peroxyniobate electrocatalyst with enriched oxygen vacancies boosts electrocatalytic nitrogen reduction to ammonia

et al. 2022

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Section: Resultsmentioning

confidence: 99%

A phosphorus-doped potassium peroxyniobate electrocatalyst with enriched oxygen vacancies boosts electrocatalytic nitrogen reduction to ammonia

et al. 2022

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“…[57] Sanad et al prepared LiNbO 3 by calcination using tartaric acid salt as raw material, and then activated the material using HClO 4 . [58] The activated LiNbO 3 has increased lattice parameters and volume, and possesses excellent multiplicative properties, maintaining 88.5 % of the original capacity after returning to small current cycles. Xiong et al synthesized Li 0.1 La 0.3 NbO 3 anode materials with abundant ionic vacancy structures using solid-phase reactions.…”

Section: Other Niobium-titanium Oxidesmentioning

confidence: 99%

Niobium‐Based Oxide for Anode Materials for Lithium‐Ion Batteries

Sheng,

Wang,

Yin

et al. 2024

Chemistry A European J

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Recently, it has become imperative to develop high energy density as well as high safety lithium‐ion batteries (LIBS) to meet the growing energy demand. Among the anode materials used in LIBs, the currently used commercial graphite has low capacity and is a safety hazard due to the formation of lithium dendrites during the reaction. Among the transition metal oxide (TMO) anode materials, TMO based on the intercalation reaction mechanism has a more stable structure and is less prone to volume expansion than TMO based on the conversion reaction mechanism, especially the niobium‐based oxide in it has attracted much attention. Niobium‐based oxides have a high operating potential to inhibit the formation of lithium dendrites and lithium deposits to ensure safety, and have stable and fast lithium ion transport channels with excellent multiplicative performance. This review summarizes the recent developments of niobium‐based oxides as anode materials for lithium‐ion batteries, discusses the special structure and electrochemical reaction mechanism of the materials, the synthesis methods and morphology of nanostructures, deficiencies and improvement strategies, and looks into the future developments and challenges of niobium‐based oxide anode materials.

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“…In recent years, the monitoring of lithium-ion batteries [1,2] under normal and hazardous operating conditions has become increasingly important, whether in technical applications or for the development of new materials in laboratory cells (e.g., [3][4][5]). For SOC and SOH estimation, charge-discharge curves are traditionally used, and more recently also impedance spectra.…”

Section: Introductionmentioning

confidence: 99%

“… 2 3 Co 2+ → Co 3+ → Co 4+ (3.5-4 V, e.g., Li 0.93 CoO 2 → Li 0.73 CoO 2 → Li 0.5 CoO 2 ),4 Ni 2+ → Ni 3+ → Ni 4+ (3.8-4.2 V),5 Mn 2+ → Mn 3+ → Mn 4+ (3.5-3.7 V, e.g., LiMn 2 O 4 → Li 0.2 Mn 2 O 4 ),6 Fe 2+ → Fe 3+ (3.2-3.5 V).…”

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confidence: 99%

Differential Capacity as a Tool for SOC and SOH Estimation of Lithium Ion Batteries Using Charge/Discharge Curves, Cyclic Voltammetry, Impedance Spectroscopy, and Heat Events: A Tutorial

et al. 2022

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State-of-charge (SOC) and state-of-health (SOH) of different cell chemistries were investigated using long-time cycle tests. This practical guide illustrates how differential capacity dQ/dU (capacitance) obtained from discharge curves, impedance spectra, and cyclic voltammograms can be used for the instant diagnosis of lithium-ion batteries without fully charging and discharging the cell. The increase of dU/dQ is an early indicator of upcoming heat events and deep discharge. The criterion dQ/dU = dU/dQ = 1 could serve as an indicator for “full charge”. The frequency response of capacitance correlates with the available charge of the battery and reflects overcharge events and deep discharges long before the battery fails. It is not necessary to measure down to extremely low frequencies because the charge transfer pseudocapacitance of around 10 Hz reflects well the SOC. Computer-aided calculation methods for the evaluation of measurements in industrial environments and for the training of students are presented.

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Chemical activation of nanocrystalline LiNbO3 anode for improved storage capacity in lithium-ion batteries

Cited by 10 publications

References 56 publications

A phosphorus-doped potassium peroxyniobate electrocatalyst with enriched oxygen vacancies boosts electrocatalytic nitrogen reduction to ammonia

A phosphorus-doped potassium peroxyniobate electrocatalyst with enriched oxygen vacancies boosts electrocatalytic nitrogen reduction to ammonia

Niobium‐Based Oxide for Anode Materials for Lithium‐Ion Batteries

Differential Capacity as a Tool for SOC and SOH Estimation of Lithium Ion Batteries Using Charge/Discharge Curves, Cyclic Voltammetry, Impedance Spectroscopy, and Heat Events: A Tutorial

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