An interface-reinforced rhombohedral Prussian blue analogue in semi-solid state electrolyte for sodium-ion battery

Xie, Bingxing; Wang, Liguang; Li, Haifeng; Huo, Hua; Cui, Can; Sun, Bo; Ma, Yulin; Wang, Jiajun; Yin, Geping

doi:10.1016/j.ensm.2020.12.008

Cited by 54 publications

(26 citation statements)

References 55 publications

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“…From Figure , very similar variation in the D Na + is observed for all samples because of the similar electrochemical behaviors. An obvious leap in D Na + at ∼3.6 V during the oxidation process can be found for all KMHCF samples, which should be related to the diffusion path switch of Na + at different interstitial sites due to the different spin states of the [Fe(CN) 6 ] 4– /[Fe(CN) 6 ] 3– and Mn 2+ /Mn 3+ couples . Correspondingly, the more obvious leap of D Na + at 4.2 V should be ascribed to the switch of the charge/discharge process.…”

Section: Resultsmentioning

confidence: 82%

Reactant Concentration and Aging-Time-Regulated Potassium Manganese Hexacyanoferrate as a Superior Cathode for Sodium-Ion Batteries

Liu

Lam

Hou

2021

ACS Appl. Energy Mater.

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In this study, the sodium citrate assisted coprecipitation method was adopted to prepare high-quality potassium manganese hexacyanoferrate (KMHCF) by adjusting the reactant concentration and aging time. The influences of reactant concentration and aging time on the microstructures and electrochemical performance were investigated systematically. With the variations in preparation conditions, the as-prepared samples showed similar monoclinic crystal structure but different morphologies as well as electrochemical behaviors. The results proved that the lower reactant concentration is more beneficial to the formation of large particles with fewer defects of Fe(CN)6 vacancies and interstitial and coordinated water in the crystal structure. As a result, better cycling stability was obtained for the KMHCF1 samples prepared with a lower reactant concentration when compared to the KMHCF3 samples prepared with a higher reactant concentration. However, the small particles (KMHCF3) benefited the electrochemical kinetics, resulting in a larger specific capacity when compared with the large particles (KMHCF1). Similarly, the aging time also exhibited significant impacts on the microstructure and electrochemical performance of the as-prepared samples. The 24 h was confirmed to be the optimal aging time for the KMHCF samples. Among all samples, the KMHCF2_24h exhibited the best electrochemical performance with a large initial specific capacity of 140.3 mA h g–1 and a high capacity retention of 80.61% after 100 cycles at 20 mA g–1. A very high capacity retention of 85.02% after 500 cycles was achieved even at a high current density of 200 mA g–1. This should be ascribed to the regular cubic morphology of particles with the optimal size (1 μm) and less defects resulted from the optimal reactant concentration and aging time. This study provides a valuable and practical guidance for the synthesis of high-performance Prussian blue analogue cathode materials for sodium-ion batteries.

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Section: Resultsmentioning

confidence: 82%

Reactant Concentration and Aging-Time-Regulated Potassium Manganese Hexacyanoferrate as a Superior Cathode for Sodium-Ion Batteries

Liu

Lam

Hou

2021

ACS Appl. Energy Mater.

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“…So the improved cyclability of PB after using CDP can be obtained, as shown in Figure 3a,b,d, because of the enhanced PB interface stability originated from the effective protection of some formed phosphate compounds on the surface of the PB cathode. 58 However, no matter whether the interface between the PB cathode and the electrolyte is enhanced or not in the CDP-containing and CDP-free electrolytes, the common capacity (below 110 mAh g −1 at 1C) and fluctuated Coulombic efficiency of PB are similarly exhibited during cycling (Figure 3a,b,d) due to the main limitations of the low quality of the bulk phase in comparison with the effect of interface instability.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Interface Reinforcement of a Prussian Blue Cathode Using a Non-Flammable Co-Solvent Cresyl Diphenyl Phosphate for a High-Safety Na-Ion Battery

Xie

et al. 2021

ACS Sustainable Chem. Eng.

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A Prussian blue (PB)-based sodium-ion battery (SIB) is a promising candidate in large-scale electric energy storage. However, its development is hindered by the poor cyclability of the PB cathode and safety problems with a flammable electrolyte. Herein, a non-flammable co-solvent cresyl diphenyl phosphate (CDP) in the electrolyte is proposed to increase the safety associated with PB-based SIBs, due to its effective flame retardancy for the electrolyte and good compatibility with the Na anode. Moreover, the deteriorated electrochemical performance of PB is obviously suppressed with cathode interface reinforcement after using CDP, resulting in excellent cyclability with a capacity retention of 83.1% after 700 cycles. The capacity fading of PB can be effectively suppressed with a protective film of phosphates produced by CDP decomposition, forming FePO4, which can activate low-spin Fe-ion sites in the PB lattice. This work effectively improves the battery safety and interface stability between the PB cathode and the electrolyte using the non-flammable CDP co-solvent, as well as the clarification of a capacity fading mechanism for general PB with considerable Fe(CN)6 vacancies and crystal water.

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“…The interfacial side reactions and Na dendrite growth typically observed in PBA‐based Na‐ion batteries that rely on conventional carbonate liquid electrolytes can be suppressed by a polymerized FEC that results in a semi‐solid state Na‐ion battery with a reinforced PBA‐electrolyte interface, which achieves an ultra‐long lifetime of 3000 and 4000 cycles at 1 and 2C, and high‐rate capacity of 121 mAh g −1 at 1 C and 88 mAh g −1 at 10C. [ 113 ] Besides, the use of ionic liquids with PBAs for Na‐ion batteries has yet to be explored. However, there are some studies on Ca‐ion [ 200 ] and Zn‐ion batteries [ 201 ] where the use of PBAs along with ionic liquid‐based electrolytes is exploited.…”

Section: The Sei/cei In Na‐ion Battery Electrodesmentioning

confidence: 99%

Structure, Composition, Transport Properties, and Electrochemical Performance of the Electrode‐Electrolyte Interphase in Non‐Aqueous Na‐Ion Batteries

Muñoz‐Márquez

Zarrabeitia

Passerini

et al. 2022

Adv Materials Inter

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Great research efforts have been made towards the development of new battery materials that increase cycle life, safety, and energy density, as well as power density [4,5] along with investigations focused on understanding novel battery chemistries that can become an alternative to the dominant liquid electrolyte-based Li-ion battery technology. [6][7][8][9][10] Na-ion technologies have emerged as one of the most promising for battery applications. [11][12][13][14][15] Interestingly, while the attention is on a given battery chemistry that promises one order of magnitude increase of the energy density, [16,17] or in a specific electrode material that outperforms currently available electroactive materials in terms of specific capacity or operating voltage, [18][19][20] there is a tendency to overlook the crucial role that battery interfaces play in the safety, power capability, morphology of lithium deposits, shelf-life, and cycle life of the battery. [21] The success of commercial Li-ion rechargeable batteries was possible due to the correct selection of electrolyte materials that resulted in the formation of a stable anode-electrolyte interface, [22] known as the solid electrolyte interphase (SEI) as proposed by Peled. [23] This highlights how interfacial stability is crucial for battery development, becoming a bottleneck even when the ideal battery materials are chosen yet the battery interfaces prevent the optimum ionic or electronic transport, the correct adhesion among components, or the long term stability required for commercial battery operation.The nature of the SEI has led to the use of different modeling approaches [24][25][26][27][28][29][30] and surface-specific experimental techniques for its characterization. Among the most widely used analytical techniques, ex situ [31] and in situ [32] Fourier transform infrared (FTIR) spectroscopy, Raman microscopy, and spectroscopy [33,34] along with refinements such as shell-isolated nanoparticles for enhanced Raman spectroscopy (SHINERS), [35] electrochemical quartz crystal microbalance (EQCM), [36] spectroscopic ellipsometry, [37] atomic force microscopy (AFM), [38] X-ray photoelectron spectroscopy (XPS) [39][40][41] including the use of the Auger parameter [42] or other charge correction methods [43] for peak assignment, nuclear magnetic resonance (NMR), [44] X-ray absorption spectroscopy (XAS), [45] soft X-ray absorption spectroscopy (sXAS), [46][47][48] and time-of-flight secondary ion mass spectrometry (ToF-SIMS) [41] have been utilized to investigate the properties and formation mechanisms of the SEI. The electrode-electrolyte interfaces for solid-state batteries have also been experimentallyRechargeable Li-ion battery technology has progressed due to the development of a suitable combination of electroactive materials, binders, electrolytes, additives, and electrochemical cycling protocols that resulted in the formation of a stable electrode-electrolyte interphase. It is expected that Na-ion technology will attain a position comparable to Li-ion batte...

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An interface-reinforced rhombohedral Prussian blue analogue in semi-solid state electrolyte for sodium-ion battery

Cited by 54 publications

References 55 publications

Reactant Concentration and Aging-Time-Regulated Potassium Manganese Hexacyanoferrate as a Superior Cathode for Sodium-Ion Batteries

Reactant Concentration and Aging-Time-Regulated Potassium Manganese Hexacyanoferrate as a Superior Cathode for Sodium-Ion Batteries

Interface Reinforcement of a Prussian Blue Cathode Using a Non-Flammable Co-Solvent Cresyl Diphenyl Phosphate for a High-Safety Na-Ion Battery

Structure, Composition, Transport Properties, and Electrochemical Performance of the Electrode‐Electrolyte Interphase in Non‐Aqueous Na‐Ion Batteries

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