NaCrO2 is a Fundamentally Safe Positive Electrode Material for Sodium-Ion Batteries with Liquid Electrolytes

Xia, Xin; Dahn, J. R.

doi:10.1149/2.002201esl

Cited by 197 publications

(182 citation statements)

References 17 publications

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“…Recently, several types of insertion materials have been introduced as cathode materials for sodium-ion batteries (SIBs) including P2-types [9][10][11][12][13][14][15][16] , O3-types [17][18][19][20][21][22][23][24][25][26][27][28][29] , pyrophosphates [30][31][32] and organo-compounds [33][34][35] . Owing to the large ionic size of Na þ ions (1.02 Å), their insertion into a spinel framework does not readily occur.…”

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confidence: 99%

“…In contrast, two-dimensional layer structures do favour the insertion of Na þ ions into their structures. Among these, P2-(refs 9-16) and O3-types [17][18][19][20][21][22][23][24][25][26][27][28][29] , which are classified by their sequence of oxygen stacking, are of interest because of their large reversible capacities. For layer-structured compounds, the P2-type usually stabilizes into Na-deficient compositions such as Na 2/3 MO 2 (M: Ni, Co, Mn, Fe and so on).…”

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“…Recently, Komaba et al 9 suggested a new compound (P2-type Na 2/3 Fe 0.5 Mn 0.5 O 2 ) that delivers 190 mAh g À 1 , thereby enabling the use of earth-abundant elements but it shows lower cycle retention of 79% during 30 cycles. O3-type compounds, typically NaMO 2 (M: Ni, Co, Mn, Fe, Cr, V and so on), possess the same crystal structure as LiMO 2 (M: Ni, Co, Mn) [17][18][19][20][21][22][23][24][25][26][27][28][29] . These layer structures are readily synthesized via various methods such as the ceramic method 17,18,20,21,25,27 , co-precipitation 19,22,23,26 and sol-gel processing 24 .…”

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Radially aligned hierarchical columnar structure as a cathode material for high energy density sodium-ion batteries

et al. 2015

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Delivery of high capacity with good retention is a challenge in developing cathodes for rechargeable sodium-ion batteries. Here we present a radially aligned hierarchical columnar With this cathode material, we show that an electrochemical reaction based on Ni 2 þ /3 þ /4 þ is readily available to deliver a discharge capacity of 157 mAh (g-oxide) À 1 (15 mA g À 1 ), a capacity retention of 80% (125 mAh g À 1 ) during 300 cycles in combination with a hard carbon anode, and a rate capability of 132.6 mAh g -1 (1,500 mA g -1 , 10 C-rate). The cathode also exhibits good temperature performance even at À 20°C. These results originate from rather unique chemistry of the cathode material, which enables the Ni redox reaction and minimizes the surface area contacting corrosive electrolyte.

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Radially aligned hierarchical columnar structure as a cathode material for high energy density sodium-ion batteries

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“…This insighti sv ery powerful in sodium-ion battery electrodes because the major issues with positive electrodes are the amount of sodium that can be reversibly inserted/extracted and the number of major structurald istortions that occur during the insertion/extraction process. Specifically,s ome cathodes under study include Na x CoO 2 , [73] Na x MnO 2 , [74] Na x CrO 2 , [75] Na x FePO 4 , [76] Na x M 2 (XO 4 ) 3 , and variousc ompositions in the Na x M 2 O 2y (PO 4 ) 2 F 3Ày series,i n which M = V, Fe, Co, Mn, and Ni and X = Si, P, S, and Mo. [8,77] To Figure 17.…”

Section: Sodium-based Batteriesmentioning

confidence: 99%

In Situ Powder Diffraction Studies of Electrode Materials in Rechargeable Batteries

et al. 2015

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The ability to directly track the charge carrier in a battery as it inserts/extracts from an electrode during charge/discharge provides unparalleled insight for researchers into the working mechanism of the device. This crystallographic-electrochemical information can be used to design new materials or modify electrochemical conditions to improve battery performance characteristics, such as lifetime. Critical to collecting operando data used to obtain such information insitu while a battery functions are X-ray and neutron diffractometers with sufficient spatial and temporal resolution to capture complex and subtle structural changes. The number of operando battery experiments has dramatically increased in recent years, particularly those involving neutron powder diffraction. Herein, the importance of structure-property relationships to understanding battery function, why insitu experimentation is critical to this, and the types of experiments and electrochemical cells required to obtain such information are described. For each battery type, selected research that showcases the power of insitu and operando diffraction experiments to understand battery function is highlighted and future opportunities for such experiments are discussed. The intention is to encourage researchers to use insitu and operando techniques and to provide a concise overview of this area of research.Keywords situ, batteries, diffraction, studies, powder, electrode, materials, rechargeable Disciplines Engineering | Science and Technology Studies Publication DetailsSharma, N., Pang, W. Kong., Guo, Z. & Peterson, V. K. (2015). In situ powder diffraction studies of electrode materials in rechargeable batteries. ChemSusChem: chemistry and sustainability, energy and materials, 8 (17), 2826-2853. This journal article is available at Research Online: http://ro.uow.edu.au/eispapers/4279 In Situ Powder Diffraction Studies of Electrode Materials in Rechargeable BatteriesNeerajS harma,* [a] Wei Kong Pang, [b, c] Zaiping Guo, [c] and Vanessa K. Peterson [b] ChemSusChem 2015, 8,2826 -2853 2 015 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim 2826 Reviews DOI:1 0.1002/cssc.201500152 Batteries and Energy StorageIncreasingw orldwide need for energy is depleting our main energy sources, including fossil fuels such as coal, petroleum, and natural gas. Concurrently,t he combustion of fossil fuels is increasing harmful greenhouse gas emissionsa nd other environmentalp ollutants. Renewable ands ustainable energy is required to solve such problems. To enabler enewable energy, energy conversion and storage systems are essential to smooth out the intermittent nature of generation. There are an umber of energy-conversion and storage systems (e.g.,f lywheels), but lithium-ion rechargeable batteries are proving to be the dominantr echargeableb attery system. This is because of their high energy density,h igh power density,a nd higher operating voltage comparedw ith other rechargeable batteries, such as lead-acid and widely used nickel-metal-hybrid batteri...

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“…Since 2010, their electrochemical properties, such as specific capacity, cycle life, and c-rate capability, have been investigated to determine the relationship between cathode structure and electrochemical performance. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] Among various Na x MO 2 -type candidates, P-type Na x MO 2 materials have shown a higher capacity and longer cycle life than O-type materials due to the better sodium ion diffusivity in trigonal prismatic (P) rather than octahedral (O) environments. As a result, more reports on P2-type cathodes have been published.…”

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Effect of Calcination Temperature on a P-type Na_0.6Mn_0.65Ni_0.25Co_0.10O₂Cathode Material for Sodium-Ion Batteries

Nguyen

Kim

Choi

et al. 2016

J. Electrochem. Soc.

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Unstable and deficient supplies of lithium resources have led to the development of alternative battery systems such as sodium-ion batteries. Herein, P-type Na0.6Mn0.65Ni0.25Co0.10O2 cathode materials were synthesized by a co-precipitation and solid-state reaction method. When the calcination temperature was changed from 700 to 1000°C, Na0.6Mn0.65Ni0.25Co0.10O2 had a different morphology and crystalline structure; however, a P3-type structure was formed only at 700°C, and P2-type structured cathodes could be obtained at 800, 900, and 1000°C. Their electrochemical performances were evaluated with 2032 coin-type half cells. Among them, the P2-type cathode calcinated at 900°C, exhibited a high specific discharge capacity of 148 mAh g−1, and a stable cycling performance at a 0.2 C rate for 150 cycles.

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NaCrO2 is a Fundamentally Safe Positive Electrode Material for Sodium-Ion Batteries with Liquid Electrolytes

Cited by 197 publications

References 17 publications

Radially aligned hierarchical columnar structure as a cathode material for high energy density sodium-ion batteries

Radially aligned hierarchical columnar structure as a cathode material for high energy density sodium-ion batteries

In Situ Powder Diffraction Studies of Electrode Materials in Rechargeable Batteries

Effect of Calcination Temperature on a P-type Na_0.6Mn_0.65Ni_0.25Co_0.10O₂Cathode Material for Sodium-Ion Batteries

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NaCrO2 is a Fundamentally Safe Positive Electrode Material for Sodium-Ion Batteries with Liquid Electrolytes

Cited by 197 publications

References 17 publications

Radially aligned hierarchical columnar structure as a cathode material for high energy density sodium-ion batteries

Radially aligned hierarchical columnar structure as a cathode material for high energy density sodium-ion batteries

In Situ Powder Diffraction Studies of Electrode Materials in Rechargeable Batteries

Effect of Calcination Temperature on a P-type Na0.6Mn0.65Ni0.25Co0.10O2Cathode Material for Sodium-Ion Batteries

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Effect of Calcination Temperature on a P-type Na_0.6Mn_0.65Ni_0.25Co_0.10O₂Cathode Material for Sodium-Ion Batteries