High-power sodium titanate anodes; a comparison of lithium vs sodium-ion batteries

Xu, Youren; Bauer, Dustin; Lübke, Mechthild; Ashton, Thomas E.; Zong, Yun; Darr, Jawwad A.

doi:10.1016/j.jpowsour.2018.10.038

Cited by 32 publications

(19 citation statements)

References 85 publications

(125 reference statements)

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“…Under ambient alkali conditions, NaO 23 TiO 2 formed on the surface of Ti 3 C 2 as nanobelts, which sat between MXene layers like filling in a sandwich (Figure a), preventing agglomeration and allowing a capacity comparable to the theoretical capacity of sodium titanate (178 mAh g −1 ) to be retained after 4000 cycles at 5 A g −1 . Other sodium titanates have previously exhibited pseudocapacitive energy storage mechanisms, and so it should be no surprise that electrochemical tests of NaO 23 TiO 2 /Ti 3 C 2 produced results similar to those of pristine Ti 3 C 2 T X (Figure c, e). However, the composite does show improved capacity and cycling stability compared to both its individual components; an improvement which could be attributed to the high ion accessibility and prevention of volume expansion that are afforded by the composite's unique morphology (discussed further in Section 4 of this review).…”

Section: Li‐ion Batteriesmentioning

confidence: 98%

MXene‐Based Anodes for Metal‐Ion Batteries

Greaves

Barg

Bissett

2020

Batteries & Supercaps

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2D transition metal carbides and nitrides (MXenes) are electrochemically active materials capable of exhibiting pseudocapacitance. Multilayer MXenes are similar to graphite, but with larger interlayer spacing and surface functionalities which allow them to readily disperse in water and undergo a range of reactions without compromising their electrical conductivity. The large interlayer spacing enables MXenes to readily intercalate large ions, and form composites with materials such as graphene, metal oxides, transition metal dichalcogenides and silicon, with which they make electrodes able to deliver exceptional capacities at high power rates over thousands of cycles. Research into MXenes for energy storage has grown exponentially since 2011, and it is now necessary, especially for readers new to the field, to review progress made in more specific areas. This critical review will therefore analyse the progress made in developing MXene‐based batteries, focusing solely on anodes developed for metal‐ion batteries such as Li‐ion, Na‐ion and K‐ion.

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Section: Li‐ion Batteriesmentioning

confidence: 98%

MXene‐Based Anodes for Metal‐Ion Batteries

Greaves

Barg

Bissett

2020

Batteries & Supercaps

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“…6). The analyzed methods for the synthesis of nanostructures of active metal titanates are successfully applied in [58][59][60][61][62][63][64]. In [58], sodium titanate nanopowder (nominal formula Na 1.5 H 0.5 Ti 3 O 7 ) was directly synthesized using a continuous hydrothermal flow synthesis process with the help of a relatively low base concentration (4 M NaOH) in the process.…”

Section: Methods Of Synthesizing Na 2 Ti 3 O 7 and Obtaining Nanotubementioning

confidence: 99%

“…The analyzed methods for the synthesis of nanostructures of active metal titanates are successfully applied in [58][59][60][61][62][63][64]. In [58], sodium titanate nanopowder (nominal formula Na 1.5 H 0.5 Ti 3 O 7 ) was directly synthesized using a continuous hydrothermal flow synthesis process with the help of a relatively low base concentration (4 M NaOH) in the process. The as-made titanate nanomaterials were characterized using powder X-ray diffraction, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy, Brunauer-Emmett-Teller analysis and transmission electron microscopy to evaluate results as potential electrode materials for Li-ion and Na-ion batteries.…”

Section: Methods Of Synthesizing Na 2 Ti 3 O 7 and Obtaining Nanotubementioning

confidence: 99%

Preparation and Research Into Functional Properties of Nanostructured Titanates of Lithium and Sodium

Mammadov¹,

Sharifova²,

Самедзаде³

et al. 2019

Chemical Problems

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Information about methods of preparation, structure and physical-chemical properties of nanostructured materials based on lithium and sodium titanates was analyzed and summarized. The functional nanostructured composite materials based on sodium and lithium titanates to produce an anode material with high capacity and working stable potential in the course of cycling with optimal electronic and ionic conductivity were examined. Examples of specific schemes, physical-chemical properties and the mechanism of functional processes by using bioactive and doped components were presented.

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“…However, large SSA always tends to the excessive consumption of cathodes/electrolyte, resulting in low initial Coulombic efficiency or even reducing the energy density in full cell configurations . In addition, various morphology carbonaceous anodes such as hollow microsphere, nanospheres, nanosheets, nanorods, nanofibers, and graphene possess poor reversible capacities of no more than 300 mAh g −1 , which is far from meeting the requirements of advanced electric‐mobile‐devices. Hence, the attentions are gradually diverted to heteroatom doping owing to multiple heteroatom can effectively regulate the physicochemical properties of carbonaceous anodes, including electronegativity, electronic conductivity, and hydrophilicity .…”

Section: Introductionmentioning

confidence: 99%

Accurate Control Multiple Active Sites of Carbonaceous Anode for High Performance Sodium Storage: Insights into Capacitive Contribution Mechanism

Liang

et al. 2020

Advanced Energy Materials

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Heteroatom doping is widely recognized as an appealing strategy to break the capacitance limitation of carbonaceous materials toward sodium storage. However, the concrete effects, especially for heteroatomic phase transformation, during the sodium storage reaction remain a confusing topic. Here, a novel hypercrosslinked polymerization approach is demonstrated to fabricate pyrrole/thiophene hypercrosslinked microporous copolymer and further give porous carbonaceous materials with accurately regulated N/S dual doping corresponding to starting feeding ratios. Significantly, the N doping contributes to the conductivity and surface wettability, while the S doping is bridged to build stable active sites, which can be electrochemically converted into mercaptan anions via faraday reaction and further enhancing reversible capacities. Meanwhile, the abundant S doping can also conduce to the expanded interlayer spacing to shorten the ions diffusion distance, thus optimizing the reaction kinetic. As a result, the N0.2S0.8‐micro‐dominant porous carbon delivers the highest reversible capacity of 521 mAh g−1 at 100 mA g−1 and excellent cyclic stability over 2000 cycles at 2000 mA g−1 with a capacity decay of 0.0145 mAh g−1 per cycle. This work is anticipated to provide an in‐depth understanding of capacitance contribution and illuminate the heteroatomic phase transformation during sodium storage reactions for doping carbonaceous anodes.

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High-power sodium titanate anodes; a comparison of lithium vs sodium-ion batteries

Cited by 32 publications

References 85 publications

MXene‐Based Anodes for Metal‐Ion Batteries

MXene‐Based Anodes for Metal‐Ion Batteries

Preparation and Research Into Functional Properties of Nanostructured Titanates of Lithium and Sodium

Accurate Control Multiple Active Sites of Carbonaceous Anode for High Performance Sodium Storage: Insights into Capacitive Contribution Mechanism

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