Precursor-based methods for low-temperature synthesis of defectless NaMnPO4 with an olivine- and maricite-type structure

Koleva, V.; Boyadzhieva, T.; Zhecheva, E.; Nihtianova, D.; Simova, Svetlana; Tyuliev, G.; Stoyanova, Р.

doi:10.1039/c3ce41545g

Cited by 49 publications

(43 citation statements)

References 41 publications

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“…Thermal decomposition and the ion-exchange reaction are utilized to prepare maricite-and olivine-structured NaMnPO 4 , respectively. [153] Neither the thus-prepared olivine nor the maricite NaMnPO 4 contain any antisite defects or Na, Mn deficiency. Neither of these two samples showed favorable electrochemical performance, however.…”

Section: Sodium Iron/manganese Phosphates and Iron/manganese Fluorophmentioning

confidence: 98%

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High‐Abundance and Low‐Cost Metal‐Based Cathode Materials for Sodium‐Ion Batteries: Problems, Progress, and Key Technologies

Chen

Liu

Wang

et al. 2019

Advanced Energy Materials

195

149

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Recently, room-temperature stationary sodium-ion batteries (SIBs) have received extensive investigations for large-scale energy storage systems (EESs) and smart grids due to the huge natural abundance and low cost of sodium. The SIBs share a similar "rocking-chair" sodium storage mechanism with lithium-ion batteries; thus, selecting appropriate electrodes with a low cost, satisfactory electrochemical performance, and high reliability is the key point for the development for SIBs. On the other hand, the carefully chosen elements in the electrodes also largely determine the cost of SIBs. Therefore, earth-abundantmetal-based compounds are ideal candidates for reducing the cost of electrodes. Among all the high-abundance and low-cost metal elements, cathodes containing iron and/or manganese are the most representative ones that have attracted numerous studies up till now. Herein, recent advances on both ironand manganese-based cathodes of various types, such as polyanionic, layered oxide, MXene, and spinel, are highlighted. The structure-function property for the iron-and manganese-based compounds is summarized and analyzed in detail. With the participation of iron and manganese in sodium-based cathode materials, real applications of room-temperature SIBs in large-scale EESs will be greatly promoted and accelerated in the near future.

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Section: Sodium Iron/manganese Phosphates and Iron/manganese Fluorophmentioning

confidence: 98%

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

High‐Abundance and Low‐Cost Metal‐Based Cathode Materials for Sodium‐Ion Batteries: Problems, Progress, and Key Technologies

Chen

Liu

Wang

et al. 2019

Advanced Energy Materials

195

149

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“…The charge/discharge performance of olivine NaFePO 4 strongly depends on the carbon coating and particle nanosizing techniques. Moreover, it should be mentioned that the thermodynamically stable phase of NaFePO 4 is not olivine, but maricite . Therefore, conventional solid‐phase reactions at high temperature are no longer suitable for synthesizing olivine NaFePO 4 .…”

Section: Polyanionic Compoundsmentioning

confidence: 99%

Recent Advances and Prospects of Cathode Materials for Sodium‐Ion Batteries

2015

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Sodium-ion batteries (SIBs) receive significant attention for electrochemical energy storage and conversion owing to their wide availability and the low cost of Na resources. However, SIBs face challenges of low specific energy, short cycling life, and insufficient specific power, owing to the heavy mass and large radius of Na(+) ions. As an important component of SIBs, cathode materials have a significant effect on the SIB electrochemical performance. The most recent advances and prospects of inorganic and organic cathode materials are summarized here. Among current cathode materials, layered transition-metal oxides achieve high specific energies around 600 mW h g(-1) owing to their high specific capacities of 180-220 mA h g(-1) and their moderate operating potentials of 2.7-3.2 V (vs Na(+) /Na). Porous Na3 V2 (PO4 )3 /C nanomaterials exhibit excellent cycling performance with almost 100% retention over 1000 cycles owing to their robust structural framework. Recent emerging cathode materials, such as amorphous NaFePO4 and pteridine derivatives show interesting electrochemical properties and attractive prospects for application in SIBs. Future work should focus on strategies to enhance the overall performance of cathode materials in terms of specific energy, cycling life, and rate capability with cationic doping, anionic substitution, morphology fabrication, and electrolyte matching.

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“…However, this is not an easy task because most of the sodium‐equivalent lithium‐based compounds do not work well; for example, olivine LiMPO 4 (M = Mn, Fe, and Co) shows good capacity and cyclability but sodium‐equivalent compounds such as NaMPO 4 exhibit poor capacity even in the first cycle. At the same time, most of the sodium‐equivalent NaMPO 4 compounds crystallize into maricite crystal structure, which is thermodynamically stable and electrochemically inactive . Similar to cathode materials, difficulties arise in the anode counterpart also due to conversion reactions that occur at relatively high potentials (which eventually decreases overall cell voltage) especially in the case of oxides, fluorides, chlorides, bromides, and so on.…”

Section: Introductionmentioning

confidence: 99%

Sodium ion batteries: a newer electrochemical storage

Nithya

Gopukumar

2014

WIREs Energy & Environment

131

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Vehicle electrification is one of the most significant solutions that address the challenges of fossil fuel depletion, global warming, CO 2 pollution, and so on. To mitigate these issues, recent research mainly focuses on finding clean energy storage devices such as batteries, supercapacitors, fuel cells, and so forth. Owing to the outstanding energy and power density, lithium-ion batteries (LIB) have captured the market for portable electronics, hybrid electric vehicles, plug-in hybrid electric vehicles, and so on. During 1970-1980s, electrode materials for both LIBs and sodium-ion batteries (NIBs) were investigated but higher energy and power density of LIBs have made it a popular candidate for portable electronics. Issues arise on the availability of lithium reserves, so it is high time we take a look at finding alternative energy storage system without compromising on the energy and power density of the state-of-the-art LIBs. Therefore, researchers have revisited NIBs and recent developments have contributed towards discovering new electrode materials to match the energy and power density of LIBs at low cost. While a variety of positive and negative electrode materials have been investigated for NIBs so far, the influence of voltage, capacity, cycle life, and volume expansion of negative electrodes on Na + ion extraction and insertion are more as compared with LIBs. This affects the energy and power density of NIBs but cost-effective partial replacement of LIBs is viable and is widely pursued.

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Precursor-based methods for low-temperature synthesis of defectless NaMnPO4 with an olivine- and maricite-type structure

Cited by 49 publications

References 41 publications

High‐Abundance and Low‐Cost Metal‐Based Cathode Materials for Sodium‐Ion Batteries: Problems, Progress, and Key Technologies

High‐Abundance and Low‐Cost Metal‐Based Cathode Materials for Sodium‐Ion Batteries: Problems, Progress, and Key Technologies

Recent Advances and Prospects of Cathode Materials for Sodium‐Ion Batteries

Sodium ion batteries: a newer electrochemical storage

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