Na 2 MnSiO 4 as an attractive high capacity cathode material for sodium-ion battery

Law, Markas; Ramar, Vishwanathan; Balaya, Palani

doi:10.1016/j.jpowsour.2017.05.069

Cited by 71 publications

(59 citation statements)

References 47 publications

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“…In the presence of additive levels of FEC, sodium–vanadium phosphate (NVP) and fluorophosphate (NVPF) cathodes could be cycled with enhanced capacity retention and coulombic efficiency, as well as high power densities . VC was also successfully used in combination with Na 2 MnSiO 4 cathodes cycled in EC/PC electrolyte . The addition of VC into the electrolytes could reduce the cathode interfacial resistivity and thereby mitigate the dissolution of Mn 2+ .…”

Section: Additives For Sodium‐ion Batteriesmentioning

confidence: 99%

“…[53,61,62] VC was also successfully used in combination with Na 2 MnSiO 4 cathodes cycled in EC/PC electrolyte. [63] The addition of VC into the electrolytesc ould reduce the cathodei nterfacial resistivity and thereby mitigate the dissolution of Mn 2 + .Additionally,i na nu ltraconcentrated aqueous electrolyte, VC also inhibits activemateriald issolution and side reactions that generate O 2 .T he addition of 2wt% VC in 10 m NaClO 4 aqueous electrolytes delivered betterp erformance, alongside higher cycling stability, which could be explained by the formation of as table passivation layer on the cathode surface. [64] Sodium-based Prussian blues (Na-PB), AM[Fe(CN)] 6 ·m H 2 O (A = alkali ion, M = transition metal), present an open structure with tailorable channels that allow rapid Na + transport.…”

Section: Passivating Additives For Cathodesmentioning

confidence: 99%

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Electrolyte Additives for Room‐Temperature, Sodium‐Based, Rechargeable Batteries

Eshetu

Martínez‐Ibáñez

Sánchez-Díez

et al. 2018

Chemistry An Asian Journal

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Owing to resource abundance, and hence, a reduction in cost, wider global distribution, environmental benignity, and sustainability, sodium-based, rechargeable batteries are believed to be the most feasible and enthralling energy-storage devices. Accordingly, they have recently attracted attention from both the scientific and industrial communities. However, to compete with and exceed dominating lithium-ion technologies, breakthrough research is urgently needed. Among all non-electrode components of the sodium-based battery system, the electrolyte is considered to be the most critical element, and its tailored design and formulation is of top priority. The incorporation of a small dose of foreign molecules, called additives, brings vast, salient benefits to the electrolytes. Thus, this review presents progress in electrolyte additives for room-temperature, sodium-based, rechargeable batteries, by enlisting sodium-ion, Na-O /air, Na-S, and sodium-intercalated cathode type-based batteries.

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Section: Additives For Sodium‐ion Batteriesmentioning

confidence: 99%

Section: Passivating Additives For Cathodesmentioning

confidence: 99%

Electrolyte Additives for Room‐Temperature, Sodium‐Based, Rechargeable Batteries

Eshetu

Martínez‐Ibáñez

Sánchez-Díez

et al. 2018

Chemistry An Asian Journal

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“…Orthosilicate Na 2 MnSiO 4 has been recently proposed as a promising Na storage material because of its impressive sodium storage performance, low cost and environmentally benign 14–19 . The structural stability of this material is mainly provided by the (SiO 4 ) 4− matrix via strong Si-O bonds.…”

Section: Introductionmentioning

confidence: 99%

“…Law et al . 14 prepared Na 2 MnSiO 4 via a modified two-step route and reported an impressive sodium storage performance of 210 mAhg −1 at 0.1 C. Using first-principles calculations, Zhang et al . 19 investigated ion diffusion mechanism of Na 2 MnSiO 4 and concluded that the Na ion diffusion is faster than Li ion diffusion in Li 2 MnSiO 4 .…”

Section: Introductionmentioning

confidence: 99%

Defects, Dopants and Sodium Mobility in Na2MnSiO4

Kuganathan

Chroneos

2018

Sci Rep

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Sodium manganese orthosilicate, Na2MnSiO4, is a promising positive electrode material in rechargeable sodium ion batteries. Atomistic scale simulations are used to study the defects, doping behaviour and sodium migration paths in Na2MnSiO4. The most favourable intrinsic defect type is the cation anti-site (0.44 eV/defect), in which, Na and Mn exchange their positions. The second most favourable defect energy process is found to be the Na Frenkel (1.60 eV/defect) indicating that Na diffusion is assisted by the formation of Na vacancies via the vacancy mechanism. Long range sodium paths via vacancy mechanism were constructed and it is confirmed that the lowest activation energy (0.81 eV) migration path is three dimensional with zig-zag pattern. Subvalent doping by Al on the Si site is energetically favourable suggesting that this defect engineering stratergy to increase the Na content in Na2MnSiO4 warrants experimental verification.

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“…[180] An even higher capacity for Na 2 MnSiO 4 was later reached by Law et al, who added 5% of vinylene carbonate to the electrolyte. [181] Their initial capacity of 155 mAh g −1 increased to 210 mAh g −1 after 10 cycles (Figure 15b). This corresponds to the reversible cycling of 1.5 Na + .…”

Section: Na 2 Msio 4 (M = Mn Fe Co)mentioning

confidence: 98%

Polyanionic Insertion Materials for Sodium‐Ion Batteries

Barpanda

Lander

Nishimura

et al. 2018

Advanced Energy Materials

337

185

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future. [1][2][3] To avoid this scenario, Na-ion batteries can play a vital role. Contrary to Li, Na has abundant natural resources with even geographic distribution. In addition to being the fifth-most abundant element in earth's crust, the Na charge carrier is also the second lightest alkali element in the periodic table. In this context, mammoth effort has been geared to build efficient Na-ion batteries. 2D layered oxides are the most important category of cathode materials, which has been proven by their dominance in commercial Li-ion batteries. Although the only difference is the intercalation ion, the electrochemical behavior and structure transformation of Na analogs are very different to that in Li-ion batteries. These are mainly caused by the larger size of Na, which can stabilize the layered structure (empirical stability criterion for ABO 2 : r B /r A <0.86 for α-NaFeO 2 type structure) and thus prevent Na from occupying tetrahedral sites and promote Na cation ordering. [31] NaMO 2 compounds can retain the layered structure for all 3d transition elements M, whereas Co and Ni are the exclusive 3d transition metals that can offer ground state stability of layered structure of LiMO 2 . Thereby, intensive survey for a variety of NaMO 2 compounds was performed. [4][5][6]32] However, even with the inherently stable structural nature of NaMO 2 compounds, they usually suffer from a slopy voltage profile distributed over a wide potential range at lower average voltage (at least 0.3 V and in many cases over 0.5 V) as compared to the Li analog, identifying only a few complicated compounds that can generate >3.5 V versus Na/Na + .Development of high voltage cathode materials is of paramount importance for Na batteries, bearing in mind the relative difference in anode potential of Li/Li + : −3.03 V and Na/ Na + : −2.71 V versus NHE. With an essential lack of high-voltage layered cathode material, polyanion compounds form a major stream toward the stable cathode materials operating over 3.5 V in Na batteries. Light and small polyanion units such as (SO 4 ) 2− , (PO 4 ) 3− , (BO 3 ) 3− , (SiO 4 ) 4− , which have also been widely explored as major components in Li-ion battery cathodes, offer two major functions; i) raising the redox potential largely as compared to the simple oxides with identical redox couple, and ii) providing inherent safety to the battery system. These two very important features led olivine LiFePO 4 to a great commercial success in the Li battery market over a decade ago, [35,37,38,63] proving that additional atoms X (X = P in this case), other than Efficient energy storage is a driving factor propelling myriads of mobile electronics, electric vehicles and stationary electric grid storage. Li-ion batteries have realized these goals in a commercially viable manner with ever increasing penetration to different technology sectors across the globe. While these electronic devices are more evident and appealing to consumers, there has been a growing concern for micro-to-mega grid storage systems. Ove...

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Na 2 MnSiO 4 as an attractive high capacity cathode material for sodium-ion battery

Cited by 71 publications

References 47 publications

Electrolyte Additives for Room‐Temperature, Sodium‐Based, Rechargeable Batteries

Electrolyte Additives for Room‐Temperature, Sodium‐Based, Rechargeable Batteries

Defects, Dopants and Sodium Mobility in Na2MnSiO4

Polyanionic Insertion Materials for Sodium‐Ion Batteries

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