NaTiO<sub>2</sub>: a layered anode material for sodium-ion batteries

Wu, Di; Li, Xin; Xu, Bo; Twu, Nancy; Liu, Lei; Ceder, Gerbrand

doi:10.1039/c4ee03045a

Cited by 262 publications

(216 citation statements)

References 40 publications

Supporting

Mentioning

208

Contrasting

Unclassified

Order By: Relevance

“…Ceder's group recently reported layered NaTiO 2 as a potential anode for NIBs. [ 379 ] They demonstrated that O3-NaTiO 2 can deliver a reversible capacity of ≈150 mA h g −1 , corresponding to ≈0.5 Na transfer in the voltage range between 0.6 and 1.6 V vs Na + /Na, in contrast to a previous report. [ 383 ] The widened low voltage window that can be achieved by reducing the water concentration in the electrolyte was speculated to result in the increase in the specifi c capacity.…”

Section: (24 Of 38)contrasting

confidence: 38%

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Kim

Zhang

et al. 2016

Advanced Energy Materials

850

595

View full text Add to dashboard Cite

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.

show abstract

Section: (24 Of 38)contrasting

confidence: 38%

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Kim

Zhang

et al. 2016

Advanced Energy Materials

850

595

View full text Add to dashboard Cite

show abstract

“…Though few Na-vacancy-ordered phases are fully characterized in O3-type Na-ion intercalation systems, the experimental results available are in good agreement with our observations. Direct comparison with experiments is possible for systems where transition into a P3 host does not occur during cycling, such as Na x VO 2 [17] and Na x TiO 2 [41].…”

Section: A Comparison To Experimentsmentioning

confidence: 99%

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

et al. 2015

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…Micro-sized particles of O3-type NaTiO 2 were synthesized via solid-state reaction using metallic sodium to reduce anatase TiO 2 [89]. Within the 0.6-1.6 V potential range NaTiO 2 delivers a specific capacity of 152 mA h g −1 and retains 98% of its initial capacity after 60 cycles at a rate of 0.1 C. In situ XRD confirmed that the (de)sodiation process propagated through a reversible O3 to O3ʹ phase transition.…”

Section: Science China Materialsmentioning

confidence: 99%

Beyond Li-ion: electrode materials for sodium- and magnesium-ion batteries

2015

View full text Add to dashboard Cite

to develop and install renewable energy harvesting technologies [3]. However, their successful implementation will be dependent on reliable and robust storage devices since harvesting solar and wind energy is inherently intermittent and the majority of consumption targets cannot be readily tethered to the grid.As energy storage devices, batteries possess high portability, high energy density, high Coulombic efficiency, and long cycle life. They are ideal power sources for portable devices, automobiles, and backup power supplies; accordingly, batteries power nearly all of our mobile electronics and are used to improve the efficiency of hybrid electric vehicles [4,5]. Unfortunately, considerable improvements in performance are still required in order to meet the demands of advanced portable devices and achieve energy sustainability (e.g., through smart grid and electric vehicle technologies) [6]. These enduring needs have driven intensive research investments. While efforts have been successful, there is still significant room for improvement regarding the development and understanding of electrode materials [7]. The overall capacity and potential cycling window of many electrode materials are limited to prevent degradation over long term cycling. In addition to exploring new electrode materials, there have been strong efforts to improve those that are already utilized. Expense reduction is a priority as approximately 23% and 8% of the overall battery pack costs stem from the respective cathode and anode active materials alone [8].An alkali-ion battery consists of several electrochemical cells connected in parallel and/or in series to provide a designated current or voltage. Each electrochemical cell has two electrodes separated by an electrolyte that is electrically insulating but ionically conductive. During discharge, when the alkali-ion battery operates as a galvanic cell, alkali ions exit the negative electrode (typically carbon) and insert themselves into the positive electrode while electronsThe need for economical and sustainable energy storage drives battery research today. While Li-ion batteries are the most mature technology, scalable electrochemical energy storage applications benefit from reductions in cost and improved safety. Sodium-and magnesium-ion batteries are two technologies that may prove to be viable alternatives. Both metals are cheaper and more abundant than Li, and have better safety characteristics, while divalent magnesium has the added bonus of passing twice as much charge per atom. On the other hand, both are still emerging fields of research with challenges to overcome. For example, electrodes incorporating Na + are often pulverized under the repeated strain of shuttling the relatively large ion, while insertion and transport of Mg 2+ is often kinetically slow, which stems from larger electrostatic forces. This review provides an overview of cathode and anode materials for sodium-ion batteries, and a comprehensive summary of research on cathodes for magnesium-ion batteries. In additi...

show abstract

NaTiO₂: a layered anode material for sodium-ion batteries

Abstract: We report on layered NaTiO2as a potential anode material for Na-ion batteries.

Cited by 262 publications

References 40 publications

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

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

Beyond Li-ion: electrode materials for sodium- and magnesium-ion batteries

Contact Info

Product

Resources

About

NaTiO2: a layered anode material for sodium-ion batteries

Abstract: We report on layered NaTiO2as a potential anode material for Na-ion batteries.

Cited by 262 publications

References 40 publications

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

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

Beyond Li-ion: electrode materials for sodium- and magnesium-ion batteries

Contact Info

Product

Resources

About

NaTiO₂: a layered anode material for sodium-ion batteries