Triclinic Off-Stoichiometric Na3.12Mn2.44(P2O7)2/C Cathode Materials for High-Energy/Power Sodium-Ion Batteries

Zhang, Zhian; Xu, Ming; Bao, Weizhai; Lai, Yanqing; Zhang, Kai; Li, Jie

doi:10.1021/acsami.8b07577

Cited by 42 publications

(31 citation statements)

References 55 publications

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“…[43][44][45] Pyrophosphate materials such as Na 2 FeP 2 O 7 , Na 2 Fe 0.5 Mn 0.5 PO 7 , and Na 3.12 Mn 2.44 (P 2 O 7 ) 2 -C show very high thermal stability as cathode materials and requires further research before commercialization. [46][47][48][49] Silicates and NASICON (NAtrium Super Ionic CONductor) also perform as good cathode materials. The lethargic stability of sodium silicates has to be improved through further research.…”

Section: Anodes For Nibsmentioning

confidence: 99%

Stibium: A Promising Electrode toward Building High-Performance Na-Ion Full-Cells

Subramanyan

Aravindan

2019

Chem

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Antimony-based materials are promising anode candidates for sodium-ion batteries (NIBs) due to their high theoretical capacity of 660 mAh g -1 (Na 3 Sb). In fact, antimony-based alloying and conversion-alloying electrodes exhibit high capacity and cycling stability, with newly developed strategies to overcome the common problem of volume expansion, all leading to renewed interest in antimony-based NIB materials. In this review, we discuss the performance of antimony-based materials for energy storage and conversion devices such as NIBs, Na-ion fuel cells, sea-water batteries, and Na-air batteries. This review also tackles common issues in NIBs that employ antimony-based materials (e.g., Sb-carbon composite and Sb 2 X 3 (X -O, and S), as well as several strategies that can be adopted to address these limitations.

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Section: Anodes For Nibsmentioning

confidence: 99%

Stibium: A Promising Electrode toward Building High-Performance Na-Ion Full-Cells

Subramanyan

Aravindan

2019

Chem

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“…Different from the stoichiometric Na 2 MnP 2 O 7 , the off-stoichiometric Na 3.12 Mn 2.44 (P 2 O 7 ) 2 /C demonstrates a single-phase reaction with low sodium-diffusion activation barriers. [223,224] As shown in Figure 20d-i, Na-migration is more likely to follow two 1 D pathways due to the smaller energy barriers (3.05 eV for Na1 → Na3 → Na1 path, and 2.42 eV for Na2 → Na3 → Na2 path). Among numerous Mn-based polyanion type cathodes, Na 2 MnSiO 4 has the largest discharge capacity of 210 mA h g −1 based on Mn 2+ /Mn 3+ /Mn 4+ redox.…”

Section: Othersmentioning

confidence: 99%

Section: Jahn-teller Distortionmentioning

confidence: 99%

Manganese‐Based Materials for Rechargeable Batteries beyond Lithium‐Ion

Zhang

Sun

et al. 2021

Advanced Energy Materials

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108

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etc., is essentially crucial to help combat these hazards and build a sustainable society. Among them, rechargeable battery has been regarded as a key technology. In the past decade, we have witnessed that the prevailing lithium-ion batteries (LIBs) made our society more portable, intelligent, and cleaner. [17][18][19] Nevertheless, the limited lithium resources and rising cost hinder their applications in the long run, especially in the field of large-scale stationary energy storage for renewable energy resources (e.g., solar, tide, and wind power). Thus, it is a huge stimulus for researchers to explore more sustainable rechargeable battery systems, which are expected to involve abundant and nontoxic metals to reduce the cost and impacts on environment.Diversified rechargeable batteries such as, the monovalent sodium-ion batteries (SIBs), [20][21][22][23][24] potassium-ion batteries (PIBs), [25][26][27] bivalent zinc-ion batteries (ZIBs), [28][29][30][31] magnesium-ion batteries (MIBs), [32][33][34][35] calcium-ion batteries (CIBs), [36][37][38][39] and trivalent aluminum-ion batteries (AIBs), [40][41][42] have emerged and shown great energy storage promise. As depicted in Figure 1a, those nonlithium metals are much more abundant than Li, especially Al, Ca, Na, K, and Mg, all of which rank the top-8 abundant elements in earth crust. For SIBs and PIBs, since Al would not form alloys with Na and K, Al foil can be used as anode collector, which further lowers the prices of SIBs and PIBs. On the other hand, the higher standard potential of Na/Na + (−2.71 V vs standard hydrogen electrode, SHE) and K/K + (−2.93 V) and their heavier atomic weights make energy densities of SIBs and PIBs intrinsically lower than that of LIBs. For multivalent-ion batteries, the multielectron transfer enables their volumetric capacities (e.g., 5857 and 8056 mA h cm −3 for Zn and Al, respectively) higher than that of Li (2042 mA h cm −3 ). [43,44] Additionally, the small cation radius of Zn 2+ (0.74 Å), Mg 2+ (0.72 Å), and Al 3+ (0.54 Å) indicate that many intercalation electrode materials typical in LIBs may be also potential hosts for reversible intercalation of these multivalent ions. Combining all the above merits, one can anticipate that these emerging rechargeable batteries would be considered as promising alternatives to LIBs.In quest of safe, cost-effective, and high-performance rechargeable batteries, two technical routes have been

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“…The crystallographic study was started by a simple comparison between the XRD pattern of the prepared materials in the Na 2 O-CuO-P 2 O 5 -As 2 O 5 system and those of the previous studies of diphosphate Na 2 MP 2 O 7 [5,7,14,28,29] and Na 2 CoP 1.5 As 0.5 O 7 [15]. In this case, only the Na 2 CuP 1.5 As 0.5 O 7 diffractogram showed a similarity with that of the β-Na 2 CuP 2 O 7 diphosphate [17].…”

Section: X-ray Powder Diffractionmentioning

confidence: 99%

Synthesis, Electrical Properties and Na+ Migration Pathways of Na2CuP1.5As0.5O7

ALQarni

Marzouki

Smida³

et al. 2020

Processes

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A new member of sodium metal diphosphate-diarsenate, Na2CuP1.5As0.5O7, was synthesized as polycrystalline powder by a solid-state route. X-ray diffraction followed by Rietveld refinement show that the studied material, isostructural with β-Na2CuP2O7, crystallizes in the monoclinic system of the C2/c space group with the unit cell parameters a = 14.798(2) Å; b = 5.729(3) Å; c = 8.075(2) Å; β = 115.00(3)°. The structure of the studied material is formed by Cu2P4O15 groups connected via oxygen atoms that results in infinite chains, wavy saw-toothed along the [001] direction, with Na+ ions located in the inter-chain space. Thermal study using DSC analysis shows that the studied material is stable up to the melting point at 688 °C. The electrical investigation, using impedance spectroscopy in the 260–380 °C temperature range, shows that the Na2CuP1.5As0.5O7 compound is a fast-ion conductor with σ350 °C = 2.28 10−5 Scm−1 and Ea = 0.6 eV. Na+ ions pathways simulation using bond-valence site energy (BVSE) supports the fast three-dimensional mobility of the sodium cations in the inter-chain space.

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Triclinic Off-Stoichiometric Na_3.12Mn_2.44(P₂O₇)₂/C Cathode Materials for High-Energy/Power Sodium-Ion Batteries

Cited by 42 publications

References 55 publications

Stibium: A Promising Electrode toward Building High-Performance Na-Ion Full-Cells

Stibium: A Promising Electrode toward Building High-Performance Na-Ion Full-Cells

Manganese‐Based Materials for Rechargeable Batteries beyond Lithium‐Ion

Synthesis, Electrical Properties and Na+ Migration Pathways of Na2CuP1.5As0.5O7

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