H$_{\bm 2}$O $_{\bm 2}$-Aided One-Pot Hydrothermal Synthesis of Nanocrystalline LiMn$_{\bm 2}$O$_{\bm 4}$ Cathode for Lithium Batteries

Sathiyaraj, K.; Bhuvaneswari, G. D.; Kalaiselvi, N.; Peter, Anthuvan John

doi:10.1109/tnano.2011.2171359

Cited by 8 publications

(3 citation statements)

References 44 publications

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“…The EIS spectra after the 1 st discharge show a second semicircle in the higher frequency region. To extract the relevant information, we used an equivalent circuit with an additional resistive component, R MF (Figure S4) [57,58] . Therefore, R HF , R MF, and R LF correspond to the x‐intercepts at high, mid, and low frequencies, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…To extract the relevant information, we used an equivalent circuit with an additional resistive component, R MF ( Figure S4). [57,58] Therefore, R HF , R MF, and R LF correspond to the x-intercepts at high, mid, and low frequencies, respectively. They refer to the ohmic resistance (R HF ), BASE-catholyte interfacial resistance (R MF ), and chargetransfer resistance at the current collector interfaces (R LF ).…”

Section: Reconfigured Lab-scale Cell Operated Under the Retuned Condimentioning

confidence: 99%

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Operational Strategies to Improve the Performance and Long‐Term Cyclability of Intermediate Temperature Sodium‐Sulfur Batteries

Kandhasamy

Nikiforidis

Jongerden³

et al. 2021

ChemElectroChem

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Based on the preliminary investigation of the intermediate temperature sodium-sulfur (IT-NaS) battery (150°C), herein we advance this energy storage system, by retuning the catholyte formulation; namely i) concentration, ii) layer thickness, and iii) cutoff limits during galvanostatic charge-discharge cycling, lowering the operating temperature and improving cell design. The systematic implementation of these strategies boosted the cell performance significantly, delivering 112 mAh/g-sulfur, 90 % of its theoretical specific capacity (125 mAh/g-sulfur), and 50 deep reversible charge-discharge cycles with coulombic and round-trip energy efficiencies of 97 � 3 % and 73 � 4 %, respectively. Along with the stability and improvement of cycle life, this study demonstrates, for the first time, the practicality of the tubular IT-NaS technology at a temperature as low as 125°C.

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Section: Resultsmentioning

confidence: 99%

Section: Reconfigured Lab-scale Cell Operated Under the Retuned Condimentioning

confidence: 99%

Operational Strategies to Improve the Performance and Long‐Term Cyclability of Intermediate Temperature Sodium‐Sulfur Batteries

Kandhasamy

Nikiforidis

Jongerden³

et al. 2021

ChemElectroChem

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show abstract

“…LiMn 2 O 4 cyclability seems to be improved by cationic replacement and control of morphology. 3 Among the solid solutions studied in the literature, the LiMn 1.5 Ni 0.5 O 4 spinel shows good cycling stability on repeated lithium ion extraction and insertion, making it the most attractive material for practical application. Moreover LiMn 1.5 Ni 0.5 O 4 shows not only high oxidation voltage but also very high stability.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical performance of Li(4−x)/3Mn(5−2x)/3FexO4 (x = 0.5 and x = 0.7) spinels: effect of microstructure and composition

et al. 2013

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Samples of spinel type oxides Li((4-x)/3)Mn((5-2x)/3)Fe(x)O4 (x = 0.5 and x = 0.7) were prepared by combining sol-gel processes and further thermal treatments. The structure and microstructure were characterized by different techniques (XRD, SEM and HRTEM) showing a cubic spinel-type structure, S.G. Fd3m in all cases. Complementary techniques were used to determine composition (EDS, EELS and TGA). Electrochemical properties were studied from charge/discharge measurements and supported by impedance spectroscopy analysis. Optimal results were obtained for the x = 0.7 sample treated at 500 °C that reached a capacity of 185 mAh g(-1) at a charge rate of C/10; this value implies an enhancement of 60% in capacity with respect to the minimum value registered in a similar composition. The observed response has been related both to microstructural aspects, i.e. morphology and particle size, and to the amount of Mn(3+), suggesting that nano-sizes lead to better electrochemical behavior. Both samples used as cathodes showed a good cycling efficiency, only with a slight loss of capacity and a coulombic efficiency close to 95%.

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Review on synthesis methods to obtain LiMn2O4-based cathode materials for Li-ion batteries

Marincaş

Goga

Dorneanu

et al. 2020

J Solid State Electrochem

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H$_{\bm 2}$O $_{\bm 2}$-Aided One-Pot Hydrothermal Synthesis of Nanocrystalline LiMn$_{\bm 2}$O$_{\bm 4}$ Cathode for Lithium Batteries

Cited by 8 publications

References 44 publications

Operational Strategies to Improve the Performance and Long‐Term Cyclability of Intermediate Temperature Sodium‐Sulfur Batteries

Operational Strategies to Improve the Performance and Long‐Term Cyclability of Intermediate Temperature Sodium‐Sulfur Batteries

Electrochemical performance of Li(4−x)/3Mn(5−2x)/3FexO4 (x = 0.5 and x = 0.7) spinels: effect of microstructure and composition

Review on synthesis methods to obtain LiMn2O4-based cathode materials for Li-ion batteries

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