Conversion and displacement reaction types of transition metal compounds for sodium ion battery

Chen, Guoying; Sun, Qian; Yue, Ji-Li; Shadike, Zulipiya; Yang, Yin; Ding, Fei; Lin, Song; Fu, Zheng-Wen

doi:10.1016/j.jpowsour.2015.03.018

Cited by 31 publications

(17 citation statements)

References 24 publications

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“…A broad range of conversion reactions based on sodium has been studied so far: oxides (CuO, − Co 3 O 4 , − NiO, Fe 3 O 4 , − Fe 2 O 3 , − MoO 3 , WO 3 ), sulfides (CoS 2 , Co 3 S 4 , FeS 2 , − WS 2 , , MoS 2 , − Ni 3 S 2 , − Cu 2 S), fluorides (CoF 2 ), phosphides (NiP 3 ), nitrides (VN, Ni 3 N), selenides (FeSe, MoSe, Cu 2 Se), and ternary systems (FeV 2 S 4 , Mo 3 Co 6 S 8 , titanates, NiCo 2 O 4 ). Their cell chemistry has been found to be complex in all cases.…”

Section: Introductionmentioning

confidence: 99%

Reaction Mechanism and Surface Film Formation of Conversion Materials for Lithium- and Sodium-Ion Batteries: An XPS Case Study on Sputtered Copper Oxide (CuO) Thin Film Model Electrodes

et al. 2016

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Charge storage based on conversion reactions is a promising concept to store electrical energy. Many studies have been devoted to conversion reactions with lithium; however, still many scientific questions remain due to the complexity of the reaction mechanism combined with surface film formation. Replacing lithium by sodium is an attractive approach to widen the scope of conversion reactions and to study whether the increase in ion size changes the reaction mechanisms and whether the cell performance benefits or worsens. In this study, we use thin film electrodes as a additive-free model system to study the conversion reaction of CuO with sodium (CuO/Na) by means of electrochemical methods, microscopy, and X-ray photoelectron spectroscopy. The reaction mechanism and film formation are being discussed. Some important differences to the analogue lithium-based system (CuO/Li) are found. Whereas CuO has been reported as charge product in CuO/Li cells, charging is incomplete in the case of CuO/Na and only Cu2O is formed. As an important finding, oxygen appears to be redox active and Na2O2 forms during charging from Na2O. Moreover, surface film formation due to electrolyte decomposition is much more severe as compared to CuO/Li. Depth profiling is used to probe the inner composition of the surface film, revealing a much thicker surface film with more inorganic components as compared to the lithium system. It is also found that the surface film disappears to a large extent during charging.

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Section: Introductionmentioning

confidence: 99%

Reaction Mechanism and Surface Film Formation of Conversion Materials for Lithium- and Sodium-Ion Batteries: An XPS Case Study on Sputtered Copper Oxide (CuO) Thin Film Model Electrodes

et al. 2016

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“…Research interest in anti-PbO type materials has not been confined to their magnetic properties; their performance as Li and Na ion battery electrodes has also been studied. − , All investigations reached similar conclusions regarding phase evolution. Specifically, an intercalation reaction was found to occur at shallow discharge states, followed by a conversion reaction at deeper discharge states.…”

mentioning

confidence: 85%

On the Electrochemical Phase Evolution of Anti-PbO-Type CoSe in Alkali Ion Batteries

et al. 2021

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The reaction mechanism of anti-PbO type CoSe in Li, Na, and K ion half cells is studied. Ex situ X-ray diffraction data is analyzed with the Rietveld method, in conjunction with discharge profiles and extended cycling data. These indicate that intercalation followed by a conversion reaction occur in all systems. For the case of Na, the intercalation reaction was associated with a contraction in the stacking axis lattice parameter, whereas Li and K exhibited expansion. Magnetic susceptibility versus temperature measurements of Li- and Na-intercalated CoSe samples produce unusual results, and several explanations are proposed, including the formation of a superconductive phase. Extended cycling experiments are also performed, and high initial capacities of 937, 657, and 972 mAh/g are observed for Li, Na, and K, respectively. However, all systems exhibit significantly lower second discharge capacities of 796, 530, and 515 mAh/g. The capacities continue to decline during extended cycling, with the systems exhibiting tenth cycle capacity fades of 52, 85, and 95% and Li half cells exhibit capacities over 150 mAh/g at 15 mA/g after 50 cycles. The capacity fade is likely attributable to volume changes and irreversibility associated with conversion and intercalation reactions. This work correlates electrochemical features to the structural evolution, magnetic properties, and reaction mechanisms.

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“…They revealed a reversible phase transformation from Cu 2 Se to Cu and Na 2 Se upon electrochemical cycling based on TEM and XAS analyses. A FeSe thin film prepared by radio‐frequency magnetron sputtering was also evaluated as a cathode for Na/Se batteries . The FeSe electrode exhibited a reversible capacity of 300 mA h g −1 , and a redox reaction occurred at 2.0 V versus Na + /Na.…”

Section: Cathode Materials With Conversion Reaction For Na Storagementioning

confidence: 99%

Conversion‐Based Cathode Materials for Rechargeable Sodium Batteries

Kim

Kang

2018

Advanced Energy Materials

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Conversion‐based electrode materials for rechargeable sodium batteries (RSBs) have received considerable attention because of their potentially higher energy densities than those of conventional intercalation‐based electrode materials. This would overcome generally lower energy densities of RSBs than those of lithium‐ion batteries. However, they often suffer from large volume changes, sluggish Na‐ion kinetics, and large overpotential in their reaction. Intensive research has thus focused on improving the electrochemical performance through a number of approaches, including analyses of the reaction mechanisms during charge/discharge, engineering the electrode materials in terms of their nanostructuring or compositing, and searching for new candidate materials. This review presents an overview of the approaches used to explore conversion electrode materials for RSBs, in particular focusing on those with relative high redox potential that could be possibly used as cathodes, followed by a discussion of the challenges and perspectives involving future research directions for these materials.

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Conversion and displacement reaction types of transition metal compounds for sodium ion battery

Cited by 31 publications

References 24 publications

Reaction Mechanism and Surface Film Formation of Conversion Materials for Lithium- and Sodium-Ion Batteries: An XPS Case Study on Sputtered Copper Oxide (CuO) Thin Film Model Electrodes

Reaction Mechanism and Surface Film Formation of Conversion Materials for Lithium- and Sodium-Ion Batteries: An XPS Case Study on Sputtered Copper Oxide (CuO) Thin Film Model Electrodes

On the Electrochemical Phase Evolution of Anti-PbO-Type CoSe in Alkali Ion Batteries

Conversion‐Based Cathode Materials for Rechargeable Sodium Batteries

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