Structural evolution and electrochemistry of monoclinic NaNiO2 upon the first cycling process

Han, Meng; Gonzalo, Elena; Casas‐Cabañas, Montse; Rojo, Teófilo

doi:10.1016/j.jpowsour.2014.02.048

Cited by 147 publications

(161 citation statements)

References 15 publications

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“…Because of its relative ionic radius, Na-ion ordering is predicted to be stronger than that of Li ions, leading to even higher disordering temperatures, making experimental validation of this study viable. Indeed, ordering is observed experimentally in Na-intercalating layered oxides, which show numerous voltage steps and plateaus indicating ordering phase transitions even at relatively high cycling rates of C=20 or C=10 [15,16,42,43]. The degeneracy of phases as uncovered in this study can be an indicator of relative disordering temperatures, with highly degenerate systems tending to lower disordering temperatures.…”

Section: A Comparison To Experimentsmentioning

confidence: 53%

Vacancy Ordering in O3 -Type Layered Metal Oxide Sodium-Ion Battery Cathodes

et al. 2015

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Current state-of-the-art Na-ion battery cathodes are selected from the broad chemical space of layered first-row transition-metal (TM) oxides. Unlike their lithium-ion counterparts, seven first-row layered TM oxides can intercalate Na ions reversibly. Their voltage curves indicate significant and numerous reversible phase transformations during electrochemical cycling. These transformations are not yet fully understood but arise from Na-ion vacancy ordering and metal oxide slab glide. In this study, we investigate the nature of vacancy ordering within the O3 host lattice framework. We generate predicted electrochemical voltage curves for each of the Na-ion intercalating layered TM oxides by using a high-throughput framework of density-functional-theory calculations. We determine a set of vacancy-ordered phases appearing as ground states in all Na x MO 2 systems and investigate the energy effect of the stacking of adjacent layers.

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Section: A Comparison To Experimentsmentioning

confidence: 53%

Vacancy Ordering in O3 -Type Layered Metal Oxide Sodium-Ion Battery Cathodes

et al. 2015

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“…[107] Monoclinic O′3-NaNiO 2 exhibits multiple well-defined voltage plateaus accompanied by several phase transformations of O′3-, P′3-, P″3-, O″3-, and O′′′3-layered phases during Na + extraction/ insertion processes when cycled between 1.5 and 4.0 V at 0.1 C. Hence, NaNiO 2 showed a large irreversible capacity loss during the first electrochemical process. [108] The capacity retention could be largely increased to 94% (115 mA h g −1 ) after 20 cycles when the upper voltage cutoff was set to 3.75 V (Figure 2g). [21,24] To reduce the nickel from trivalent to divalent in O′3 NaNiO 2 , Sb-based O′3-Na 3 Ni 2 SbO 6 [109,110] and Bi-based O′3-Na 3 /Bi 5+ cationic ordering or a superstructure within the each slab, where each (Bi) SbO 6 octahedron is surrounded by six NiO 6 octahedra forming a honeycomb network.…”

Section: Wwwadvenergymatdementioning

confidence: 98%

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Wang

You

Yin

et al. 2017

Advanced Energy Materials

660

464

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sources into large-scale grids, inexpensive, efficient, and fast-responding electrical energy storage (EES) systems are essential to store the off-peak energy and releasing the stored energy during the onpeak period. Among various EES systems, rechargeable batteries represent one of the most competitive technologies because of their high conversion efficiency and environmental friendliness. [1][2][3][4] For stationary EES systems, batteries with low cost, high safety, high rate capability, and long cycle stability are highly desired.Lithium (Li)-ion batteries (LIBs) have achieved great success in the market of portable electronics and electric vehicles since their commercialization by Sony Company in 1991. However, the shortage of Li resources in nature gives rise to a concern about its sustainable development in grid scale. Compared with Li, sodium resource has rich natural abundance in the earth crust and a worldwide distribution, consequently leading to a low price of sodium-based raw materials (e.g., the cost of Na 2 CO 3 is about 25-30 times lower than that of Li 2 CO 3 ). Besides, sodium has a suitable redox potential (E 0 (Na + /Na) = −2.71 V versus standard hydrogen electrode (SHE), 0.3 V above that of Li + /Li) and similar physical and chemical properties with lithium. [5,6] Therefore, rechargeable sodium-ion batteries (SIBs), which have a similar "rockingchair" working principle of LIBs, are emerging as an appealing choice as alternatives for LIBs. Note that it is difficult for SIBs to bypass LIBs in terms of energy densities because of the much higher weight of Na and lower standard electrochemical potential. [7][8][9][10] Nevertheless, the use of low-cost materials, including inexpensive Na-based raw materials and Al current collectors for both cathodes and anodes in SIBs, could significantly reduce the cost. In this case, SIBs could be applied where cost-effectiveness rather than energy density is the most critical issue, e.g., in the field of large-scale EES. As a result, sodiumbased electroactive materials are enjoying renewed interest especially for very low cost systems for grid storage. [11,12] Given that cathode materials are the key component that determines energy density and cost, tremendous efforts have been devoted to exploring suitable positive electrode materials with high reversible capacity, rapid Na ions insertion/extraction, and good cycling stability in the past few years. [13,14] A broad range of compounds, including layered oxides, polyanionic frameworks, hexacyanoferrates, and organics, haveThe increasing demand for replacing conventional fossil fuels with clean energy or economical and sustainable energy storage drives better battery research today. Sodium-ion batteries (SIBs) are considered as a promising alternative for grid-scale storage applications due to their similar "rockingchair" sodium storage mechanism to lithium-ion batteries, the natural abundance, and the low cost of Na resources. Searching for appropriate electrode materials with acceptable electrochemical perfor...

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“…[ 73 ] The substitution of other transition metals in O3-NaNiO 2 could lead to better electrochemical performance. Komaba et al demonstrated that O3-NaNi 0.5 Mn 0.5 O 2 electrodes could deliver a capacity of 105-125 mA h g −1 at current densities of 240-4.8 mA g −1 in the voltage range of 2.2−3.8 V vs Na + /Na.…”

Section: O3-type Tmosmentioning

confidence: 99%

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Kim

Zhang

et al. 2016

Advanced Energy Materials

884

595

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Grid‐scale energy storage systems (ESSs) that can connect to sustainable energy resources have received great attention in an effort to satisfy ever‐growing energy demands. Although recent advances in Li‐ion battery (LIB) technology have increased the energy density to a level applicable to grid‐scale ESSs, the high cost of Li and transition metals have led to a search for lower‐cost battery system alternatives. Based on the abundance and accessibility of Na and its similar electrochemistry to the well‐established LIB technology, Na‐ion batteries (NIBs) have attracted significant attention as an ideal candidate for grid‐scale ESSs. Since research on NIB chemistry resurged in 2010, various positive and negative electrode materials have been synthesized and evaluated for NIBs. Nonetheless, studies on NIB chemistry are still in their infancy compared with LIB technology, and further improvements are required in terms of energy, power density, and electrochemical stability for commercialization. Most recent progress on electrode materials for NIBs, including the discovery of new electrode materials and their Na storage mechanisms, is briefly reviewed. In addition, efforts to enhance the electrochemical properties of NIB electrode materials as well as the challenges and perspectives involving these materials are discussed.

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Structural evolution and electrochemistry of monoclinic NaNiO2 upon the first cycling process

Cited by 147 publications

References 15 publications

Vacancy Ordering in O3 -Type Layered Metal Oxide Sodium-Ion Battery Cathodes

Vacancy Ordering in O3 -Type Layered Metal Oxide Sodium-Ion Battery Cathodes

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

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