Reversible Sodium Ion Insertion in Single Crystalline Manganese Oxide Nanowires with Long Cycle Life

Cao, Yuliang; Xiao, Ling; Wang, Wei; Choi, Daiwon; Nie, Zimin; Yu, Jianguo; Saraf, Laxmikant V.; Yang, Zhenguo; Li, Jun

doi:10.1002/adma.201100904

Cited by 659 publications

(541 citation statements)

References 34 publications

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“…Due to the larger size of the Na ion, the effects of mutual repulsion between ions begin to distort the structure when there are fewer Na ions in the tunnel, i.e., lower intercalation levels. This suggests that the use of cycling in restricted ranges in recent work 37,38 has in part achieved stable cycling by avoiding structural degradation. The enhanced impact of the Na-ion size is also evident from the predicted cell volume of 420.8 Å 3 for α-NaMnO 2 compared to 374.3 Å 3 when Li-ions are intercalated.…”

Section: Chemistry Of Materialsmentioning

confidence: 99%

Electrochemistry of Hollandite α-MnO₂: Li-Ion and Na-Ion Insertion and Li₂O Incorporation

2013

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MnO 2 is attracting considerable interest in the context of rechargeable batteries, supercapacitors, and Li−O 2 battery applications. This work investigates the electrochemical properties of hollandite α-MnO 2 using density functional theory with Hubbard U corrections (DFT+U). The favorable insertion sites for Li-ion and Na-ion insertion are determined, and we find good agreement with measured experimental voltages. By explicit calculation of the phonons we suggest multiple insertion sites are accessible in the dilute limit. Significant structural changes in α-(Li,Na) x MnO 2 during ion insertion are demonstrated by determining the low energy structures. The significant distortions to the unit cell and Mn coordination are likely to be active in causing the observed degradation of α-MnO 2 with cycling. The presence of Li 2 O in the structure reduces these distortions significantly and is the probable cause for the good experimental cycling stability of α-[0.143Li 2 O]-MnO 2 . However, the presence of Na 2 O is less effective in reducing the distortion of the Na-ion intercalated form. We also find a distinct change in the favored Li-ion insertion site, not identified in previous studies, for lithiation of α-Li x MnO 2 at x > 0.5. The migration barriers for both Li-ions and Na-ions increase from <0.3 eV in the dilute limit to >0.48 eV for α-(Li,Na) 0.75 MnO 2 . Finally, the electronic density of states in α-MnO 2 with the incorporation of Li 2 O has the character of a full metal, not a half metal as was suggested in previous work. This may be key to its good performance as a catalyst in Li−O 2 batteries.

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Section: Chemistry Of Materialsmentioning

confidence: 99%

Electrochemistry of Hollandite α-MnO₂: Li-Ion and Na-Ion Insertion and Li₂O Incorporation

2013

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“…A large variety of compounds, such as transition metal oxides,6, 7, 8, 9 phosphates,10, 11, 12 ferrocyanide,13, 14, 15 hard carbon,16, 17, 18, 19 metal alloys,20, 21, 22 and organic materials,23, 24, 25 have demonstrated considerable Na‐storage capacities for SIBs. However, most of them suffer from structural instability during Na‐insertion/extraction reactions.…”

Section: Introductionmentioning

confidence: 99%

Phosphate Framework Electrode Materials for Sodium Ion Batteries

et al. 2017

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Sodium ion batteries (SIBs) have been considered as a promising alternative for the next generation of electric storage systems due to their similar electrochemistry to Li‐ion batteries and the low cost of sodium resources. Exploring appropriate electrode materials with decent electrochemical performance is the key issue for development of sodium ion batteries. Due to the high structural stability, facile reaction mechanism and rich structural diversity, phosphate framework materials have attracted increasing attention as promising electrode materials for sodium ion batteries. Herein, we review the latest advances and progresses in the exploration of phosphate framework materials especially related to single‐phosphates, pyrophosphates and mixed‐phosphates. We provide the detailed and comprehensive understanding of structure–composition–performance relationship of materials and try to show the advantages and disadvantages of the materials for use in SIBs. In addition, some new perspectives about phosphate framework materials for SIBs are also discussed. Phosphate framework materials will be a competitive and attractive choice for use as electrodes in the next‐generation of energy storage devices.

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“…Similar to their Li counterparts,1 though sodium‐based system has similar electrochemical reaction characteristics compared to lithium‐based one, the larger ionic radius for sodium ion cause sluggish kinetics and volume change during Na storage, leading to lower capacity, poor cycling and rate properties of the Na storage materials. Recently, major efforts have been devoted to promote the electrochemical performance of Na storage materials, for example, Na x MO 2 ,2, 3, 4, 5, 6, 7, 8, 9, 10 polyanionic framework compounds,11, 12, 13, 14, 15, 16, 17, 18, 19 hexacyanoferrate,20, 21, 22, 23, 24, 25, 26, 27 for the cathode materials, and hard carbons,28, 29, 30, 31, 32, 33 alloys,34, 35, 36, 37, 38, 39, 40, 41 oxides,42, 43 sulfides37, 44, 45, 46 for the anode materials.…”

Section: Introductionmentioning

confidence: 99%

A Safer Sodium‐Ion Battery Based on Nonflammable Organic Phosphate Electrolyte

et al. 2016

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Sodium‐ion batteries are now considered as a low‐cost alternative to lithium‐ion technologies for large‐scale energy storage applications; however, their safety is still a matter of great concern for practical applications. In this paper, a safer sodium‐ion battery is proposed by introducing a nonflammable phosphate electrolyte (trimethyl phosphate, TMP) coupled with NaNi0.35Mn0.35Fe0.3O2 cathode and Sb‐based alloy anode. The physical and electrochemical compatibilities of the TMP electrolyte are investigated by igniting, ionic conductivity, cyclic voltammetry, and charge–discharge measurements. The results exhibit that the TMP electrolyte with FEC additive is completely nonflammable and has wide electrochemical window (0–4.5 V vs. Na/Na+), in which both the Sb‐based anode and NaNi0.35Mn0.35Fe0.3O2 cathode show high reversible capacity and cycling stability, similarly as in carbonate electrolyte. Based on these results, a nonflammable sodium‐ion battery is constructed by use of Sb anode, NaNi0.35Mn0.35Fe0.3O2 cathode, and TMP + 10 vol% FEC electrolyte, which works very well with considerable capacity and cyclability, demonstrating a promising prospect to build safer sodium‐ion batteries for large‐scale energy storage applications.

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Reversible Sodium Ion Insertion in Single Crystalline Manganese Oxide Nanowires with Long Cycle Life

Cited by 659 publications

References 34 publications

Electrochemistry of Hollandite α-MnO₂: Li-Ion and Na-Ion Insertion and Li₂O Incorporation

Electrochemistry of Hollandite α-MnO₂: Li-Ion and Na-Ion Insertion and Li₂O Incorporation

Phosphate Framework Electrode Materials for Sodium Ion Batteries

A Safer Sodium‐Ion Battery Based on Nonflammable Organic Phosphate Electrolyte

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Reversible Sodium Ion Insertion in Single Crystalline Manganese Oxide Nanowires with Long Cycle Life

Cited by 659 publications

References 34 publications

Electrochemistry of Hollandite α-MnO2: Li-Ion and Na-Ion Insertion and Li2O Incorporation

Electrochemistry of Hollandite α-MnO2: Li-Ion and Na-Ion Insertion and Li2O Incorporation

Phosphate Framework Electrode Materials for Sodium Ion Batteries

A Safer Sodium‐Ion Battery Based on Nonflammable Organic Phosphate Electrolyte

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Product

Resources

About

Electrochemistry of Hollandite α-MnO₂: Li-Ion and Na-Ion Insertion and Li₂O Incorporation

Electrochemistry of Hollandite α-MnO₂: Li-Ion and Na-Ion Insertion and Li₂O Incorporation