Revealing and suppressing surface Mn(II) formation of Na0.44MnO2 electrodes for Na-ion batteries

Qiao, Ruimin; Dai, Kehua; Mao, Jing; Weng, Tsu‐Chien; Sokaras, Dimosthenis; Nordlund, Dennis; Song, Xiangyun; Battaglia, Vince; Hussain, Zahid; Liu, Gao; Yang, Wanli

doi:10.1016/j.nanoen.2015.06.024

Cited by 118 publications

(113 citation statements)

References 42 publications

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“…In all, considering the cost of scaling up and intrinsic electrochemical performance of the electrodes, O3-Na 0.9 Cu 0. 22 6 and Na x MnFe(CN) 6 exhibit as the most promising candidates for commercial application.…”

Section: Discussionmentioning

confidence: 99%

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Recent Advances in Sodium-Ion Battery Materials

Fang

Xiao

Chen

et al. 2018

Electrochem. Energ. Rev.

271

142

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Grid-scale energy storage systems with low-cost and high-performance electrodes are needed to meet the requirements of sustainable energy systems. Due to the wide abundance and low cost of sodium resources and their similar electrochemistry to the established lithium-ion batteries, sodium-ion batteries (SIBs) have attracted considerable interest as ideal candidates for grid-scale energy storage systems. In the past decade, though tremendous efforts have been made to promote the development of SIBs, and significant advances have been achieved, further improvements are still required in terms of energy/ power density and long cyclic stability for commercialization. In this review, the latest progress in electrode materials for SIBs, including a variety of promising cathodes and anodes, is briefly summarized. Besides, the sodium storage mechanisms, endeavors on electrochemical property enhancements, structural and compositional optimizations, challenges and perspectives of the electrode materials for SIBs are discussed. Though enormous challenges may lie ahead, we believe that through intensive research efforts, sodium-ion batteries with low operation cost and longevity will be commercialized for large-scale energy storage application in the near future.

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Section: Discussionmentioning

confidence: 99%

“…The excellent electrochemical performance of Na 0.44 MnO 2 nanowires benefits from shortened diffusion path of Na ions and stable tunnel structure. After that, a lot of Na 0.44 MnO 2 materials with different nanostructures have been realized [21][22][23]. The sodium storage mechanism has also been studied.…”

Section: Tunnel-type Oxidesmentioning

confidence: 99%

Recent Advances in Sodium-Ion Battery Materials

Fang

Xiao

Chen

et al. 2018

Electrochem. Energ. Rev.

271

142

View full text Add to dashboard Cite

show abstract

“…They also revealed that cycling above 3 V could efficiently suppress the Mn 2+ formation, preventing capacity fading. [100] Cai et al have synthesized monoclinic Na 0.282 V 2 O 5 nanorods by a facile hydrothermal method, containing 3D tunnels along the b-axis. As an SIB cathode material, Na 0.282 V 2 O 5 delivered a discharge capacity of 104 mA h g −1 at 0.3 A g −1 in the range 1.5-4 V with a good capacity retention of 79% over 1000 cycles.…”

Section: Sodium-inserted Tunnel Metal Oxidesmentioning

confidence: 99%

Advanced Cathode Materials for Sodium‐Ion Batteries: What Determines Our Choices?

et al. 2017

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lithium with cheaper alternatives might make future batteries less susceptible to price fluctuations when the market expands. [5] This concern has in turn spawned a flurry of research activity to look beyond LIB technology. In view of the various rechargeable batteries, sodiumion batteries (SIBs) that consist of a main element of seawater made their presence felt in the battery industry due to their chemical similarity (e.g., only 0.3 V more positive than lithium) but higher abundance compared to lithium, [6] as illustrated in Table 1. SIBs work in the same way as LIBs in that they involve the reversible migration of cations/anions across a separator toward the electrodes to realize voltage-driven electrochemical reactions. [7] The upward trend for sodium-ion battery research is driven by the concern over the scarcity and price rise of lithium. Hence, these major merits, as well as the suitable redox potential (E = 0.3 V vs Li) make the SIB an appropriate choice as a rechargeable battery system.In fact, SIBs started almost in parallel with LIBs in the 1980s but the development of LIBs eventually eclipsed SIBs due to the electrochemical performances of SIBs. [8,9] A major obstacle is that it is difficult to get a sodium host material with comparable operating voltage and capacity as the LIB analogs. Firstly, the larger Na + radius (0.98 Å) than that of Li + (0.69 Å) leads to the kinetically sluggish Na + insertion/extraction and transport cross the host-material framework, which will always make the specific capacity and rate capacity largely degraded. [10] Secondly, the larger volume expansion caused by Na + insertion will also bring a change in the phase and lattice of the host materials, making it difficult to achieve a favorable electrochemical stability compared with the LIB counterparts. [11] In addition, they also suffer from a lower specific energy than LIBs, due to the lower potential and larger atomic weight of sodium. It is still a challenge to build an affordable Na-host materials endowed with a high specific energy (e.g., 500 W h kg −1 in LIBs). [12] Recently, the topic of SIBs was revisited in the hope of exploring possible ways to overcome the concerns about the low energy density and poor cycling life of SIBs.In spite of the above distinct drawbacks, SIBs can actually behave slightly differently in some chemical aspects. For instance, sodium does not react with aluminum, which is contrary to the alloying tendency of lithium. In the commercial market, manufacturers could appreciate this "inertness" to reduce the production cost of batteries by substituting the Among the various energy solutions, lithium-ion batteries (LIBs) play an important role in the process of the transition from fossil fuels to renewables. However, the necessity to replace lithium with cheaper alternatives due to its scarcity has recently attracted great interest to developing sodium-ion batteries (SIBs). Hence, the discovery and development of suitable cathode materials that exhibit high specific capacity, good cycling stabil...

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“…More recently, NMO materials have also been prepared by other synthesis procedures such as wet-chemistry techniques [12], including modified-Pechini methods [16][17][18], spray pyrolysis [19], polyvinilpyrrolidone (PVP)-assisted gel combustion synthesis [20,21], and reverse microemulsion methods [22,23]. However, even if a solution precursor is used, the NMO materials are usually obtained at high temperatures between 800 • C [12,17,18] and 950 • C [16,20,21] after several hours of annealing, typically ranging between 8 and 15 h. Notable exceptions are related to hydrothermal preparation strategies, where typically an aqueous solution is heated at only 205 • C, but for 4 days, in an autoclave [24,25]. Quite surprisingly, NMO materials deliver similar electrochemical performance and specific capacities at low current rates (i.e., approaching the theoretical capacity of 121 mA h g −1 ), despite being synthesized via different methodologies.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Na0.44MnO2 Slabs for Sodium-Ion Batteries Obtained through Urea-Based Solution Combustion Synthesis

et al. 2018

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Abstract:One of the primary targets of current research in the field of energy storage and conversion is the identification of easy, low-cost approaches for synthesizing cell active materials. Herein, we present a novel method for preparing nanometric slabs of Na 0.44 MnO 2 , making use of the eco-friendly urea within a solution synthesis approach. This kind of preparation greatly reduces the time of reaction, decreases the thermal treatment temperature, and allows the obtaining of particles with smaller dimensions compared with those obtained through conventional solid-state synthesis. Such a decrease in particle size guarantees improved electrochemical performance, particularly at high current densities, where kinetic limitations become relevant. Indeed, the materials produced via solution synthesis outperform those prepared via solid-state synthesis both at 2 C, (95 mA h g −1 vs. 85 mA h g −1 , respectively) and 5 C, (78 mA h g −1 vs. 68.5 mA h g −1 , respectively). Additionally, the former material is rather stable over 200 cycles, with a high capacity retention of 75.7%.

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Revealing and suppressing surface Mn(II) formation of Na0.44MnO2 electrodes for Na-ion batteries

Cited by 118 publications

References 42 publications

Recent Advances in Sodium-Ion Battery Materials

Recent Advances in Sodium-Ion Battery Materials

Advanced Cathode Materials for Sodium‐Ion Batteries: What Determines Our Choices?

High-Performance Na0.44MnO2 Slabs for Sodium-Ion Batteries Obtained through Urea-Based Solution Combustion Synthesis

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