Long-life Sodium-ion Batteries Research Articles

Nitrogen-Doped Bioderived Mesoporous Hard Carbon as a Promising Anode for Long-Life Sodium-Ion Battery

Nitrogen-Doped Bioderived Mesoporous Hard Carbon as a Promising Anode for Long-Life Sodium-Ion Battery

The C-BixSnSb composite toward fast-charging and long-life sodium-ion batteries

Sodium ion batteries (SIBs) fitted with high-rate and high-capacity anodes are attractive for their higher energy density and faster charging capability. However, it is still a challenge to develop high-energy SIBs with high power and long life, due to the sluggish kinetic and limited Na+ insertion in electrode materials. The inherent crystal structure and constituent element are two important factors to resolve the critical issues faced above. Taking the merits of layer-structure and middle-entropy, herein, we proposed and designed a high ion-conductive composite combing with ternary alloy and layered BixSnSb@C nanofibers, which eliminate ion migration barriers while maintaining the structural framework for superior rate property and cycle stability. Used as anode for SIBs, the multiphase BixSnSb@C with adjustable Bi content exhibits excellent Na storage capability as compared to their single phase counterpart. Specially, up to a rate of 132C (50 A g−1), the capacity is still as high as 400 mAh g−1, meanwhile, after 5000 charge and discharge cycles at a current density of 12C, the capacity still maintains 85 % of its initial capacity, which outperform the individual Bi- or SnSb-based materials. The superior electrochemical performances originate from the middle-entropy nature and layer structure of BiSnSb alloy, which can provide more channels for fast Na+ transport, and accommodate large volume changes. Besides, the activity energy and ions transport resistance of Na+ in different composites were evaluated. Furthermore, the full-cell coupled with NaNi1/3Fe1/3Mn1/3O2 as cathode was formed and a capacity retention of ∼80 % is realized in 100 cycles. The results show that the BixSnSb@C is a potential anode for fast-charging Na-ion batteries and could be used to guide the design of multi-component alloy-base anodes.

Manipulating Local Chemistry and Coherent Structures for High-Rate and Long-Life Sodium-Ion Battery Cathodes.

Layered sodium transition-metal (TM) oxides generally suffer from severe capacity decay and poor rate performance during cycling, especially at a high state of charge (SoC). Herein, an insight into failure mechanisms within high-voltage layered cathodes is unveiled, while a two-in-one tactic of charge localization and coherent structures is devised to improve structural integrity and Na+ transport kinetics, elucidated by density functional theory calculations. Elevated Jahn-Teller [Mn3+O6] concentration on the particle surface during sodiation, coupled with intense interlayer repulsion and adverse oxygen instability, leads to irreversible damage to the near-surface structure, as demonstrated by X-ray absorption spectroscopy and in situ characterization techniques. It is further validated that the structural skeleton is substantially strengthened through the electronic structure modulation surrounding oxygen. Furthermore, optimized Na+ diffusion is effectively attainable via regulating intergrown structures, successfully achieved by the Zn2+ inducer. Greatly, good redox reversibility with an initial Coulombic efficiency of 92.6%, impressive rate capability (86.5 mAh g-1 with 70.4% retention at 10C), and enhanced cycling stability (71.6% retention after 300 cycles at 5C) are exhibited in the P2/O3 biphasic cathode. It is believed that a profound comprehension of layered oxides will herald fresh perspectives to develop high-voltage cathode materials for sodium-ion batteries.

Sustainable layered cathode with suppressed phase transition for long-life sodium-ion batteries

Sustainable layered cathode with suppressed phase transition for long-life sodium-ion batteries

High-entropy prussian blue analogs with 3D confinement effect for long-life sodium-ion batteries

By combining the benefits of high entropy (HE) and carbon wrapping (CW), HEPBAs@0.1C achieves excellent electrochemical performance and unprecedented stability in the ambient environment.

Bamboo-derived hard carbon/carbon nanotube composites as anode material for long-life sodium-ion batteries with high charge/discharge capacities

Bamboo-derived hard carbon/carbon nanotube composites as anode material for long-life sodium-ion batteries with high charge/discharge capacities

Synthesis and design of NaNi1/3Fe1/3Mn1/3O2 cathode materials for long-life sodium-ion batteries

To enable the widespread adoption of residential energy storage, sustainable, low-cost, long-life, and energy-dense battery technologies are required. Sodium-ion offers many of these characteristics, however often the system is tailored for energy rather than cycle life. In this work, the effect of synthesis conditions upon the primary and agglomerated secondary particle size and shape of the sodium-ion cathode material NaNi1/3Fe1/3Mn1/3O2 was investigated for optimization of energy and cycle life. A two-level full factorial experimental design was utilized to examine how the synthesis parameters (pH, molar ratio of ammonia/metal precursor salt, and stirring speed) affect the physical and electrochemical properties. This approach enabled a comprehensive investigation of the main effects and interactions of these parameters. The data from multiple synthesis runs were analyzed using statistical methods and regression analysis. This experimental design provided valuable insights into the relationship between synthesis parameters and material properties. Statistical analysis indicates that both physical and electrochemical properties are mainly controlled through pH and NH4OH, while the effects of stirring speed are less pronounced. The optimal synthetic conditions producing the highest cycling performance were extrapolated from the statistical analysis. A validation experiment showed that particles synthesized with optimum parameters displayed a threefold increase in cycling performance together with uniformly distributed particle size and a high tap density.

Reusing the steel slag to design a gradient-doped high-entropy oxide for high-performance sodium ion batteries

Herein, a high-entropy layered oxide (HEO) is proposed as an outstanding cathode material for long-life sodium-ion batteries. Based on the self-segregation of elements from surface to bulk phase, a multi-element gradient doped high-entropy cathode material is prepared by doping steel slag with available elements (Mg, Al, Si, Fe, Ca). The surface high-entropy region vastly improves the air stability of materials and reduces surface impurities and side reactions. The Na-O-Mg configuration of near-surface high-entropy region continuously stimulates the anionic redox activity, and the DEMS shows the high-strength Al-O bonding achieves zero oxygen release. Therefore, the LNSM-0.01 reveals a stable capacity of ∼24 mA h g−1 in the range of 4.0–4.5 V. The Ca2+ in bulk phase high-entropy region disrupts the Na+/vacancy ordering transition and enhances the kinetic performance (90 mA h g−1 at 1000 mA g−1), while Fe2+/3+ provides a large amount number of charge compensation. Further, DFT calculations prove that the entropy stability based on synergistic effect immeasurably reinforce the layered oxide configuration, building a more robust structural framework during cycling. This work deepens the understanding on multi-element gradient doping to prepare HEOs, and provides a novel pathway for resource utilization of solid waste.

Novel NASICON-Type Na-V-Mn-Ni-Containing Cathodes for High-Rate and Long-Life SIBs.

Partial substitution of V by other transition metals in Na3 V2 (PO4 )3 (NVP) can improve the electrochemical performance of NVP as a cathode for sodium-ion batteries (SIBs). Herein, phosphate Na-V-Mn-Ni-containing composites based on NASICON (Natrium Super Ionic Conductor)-type structure have been fabricated by sol-gel method. The synchrotron-based X-ray study, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) studies show that manganese/nickel combinations successfully substitute the vanadium in its site within certain limits. Among the received samples, composite based on Na3.83 V1.17 Mn0.58 Ni0.25 (PO4 )3 (VMN-0.5, 108.1 mAh g-1 at 0.2 C) shows the highest electrochemical ability. The cyclic voltammetry, galvanostatic intermittent titration technique, in situ XRD, ex situ XPS, and bond valence site energy calculations exhibit the kinetic properties and the sodium storage mechanism of VMN-0.5. Moreover, VMN-0.5 electrode also exhibits excellent electrochemical performance in quasi-solid-state sodium metal batteries with PVDF-HFP quasi-solid electrolyte membranes. The presented work analyzes the advantages of VMN-0.5 and the nature of the substituted metal in relation to the electrochemical properties of the NASICON-type structure, which will facilitate further commercialization of SIBs.

Zinc doped P2-type layered cathode for high-voltage and long-life sodium ion batteries: impacts of calcination temperature and cooling methods

Zinc doped P2-type layered cathode for high-voltage and long-life sodium ion batteries: impacts of calcination temperature and cooling methods

Synergisticγ-In2 Se3 @rGO Nanocomposites with Beneficial Crystal Transformation Behavior for High-Performance Sodium-Ion Batteries.

Crystal transformation of metal compound cathodes during charge/discharge processes in alkali metal-ion batteries usually generates profound impact on structural stability and electrochemical performance, while the theme in anode materials, which always occurs and completes during the first redox cycle, is rarely explored probably due to the fast transformation dynamics. Herein, for the first time, a unique crystal transformation behavior with slow dynamics in anode of sodium-ion batteries (SIBs) is reported, which further promotes electrochemical performance. Specifically, irreversible γ → β crystal transformation of In2 Se3 is observed, induced by the persistent size degradation of In2 Se3 particles during repeated sodiation/desodiation, supported by a series of ex situ characterizations, such as HRTEM, XRD, and XPS of γ-In2 Se3 /reduced graphene oxide (γ-In2 Se3 @rGO) nanocomposite. The hybrid electrode shows ultrahigh long-term cycling stability (378mA h g-1 at 1.0 A g-1 after 1000 cycles) and excellent rate capability (272mA h g-1 at 20.0 A g-1 ). Full battery with Na3 V2 (PO4 )3 cathode also manifests superior performance, promising β-In2 Se3 dominated electrode materials in high-power and long-life SIBs. The first-principle calculations suggest the crystal transformation enhances electric conductivity of β-In2 Se3 and facilitates its accessibility to sodium. In combination with the synergistic effect between rGO matrix, substantially enhanced electrochemical performance is realized.

NaNbV(PO4)3: Multielectron NASICON-Type Anode Material for Na-Ion Batteries with Excellent Rate Capability.

NASICON-type NaNbV(PO4)3 electrode material synthesized by the Pechini sol-gel technique undergoes a reversible three-electron reaction in a Na-ion cell which corresponds to the Nb5+/Nb4+, Nb4+/Nb3+, and V3+/V2+ redox processes and provides a reversible capacity of 180 mAh·g-1. The sodium insertion/extraction takes place in a narrow potential range at an average potential of 1.55 V versus Na+/Na. Structural characterization by operando and ex situ X-ray diffraction disclosed the reversible evolution of the NaNbV(PO4)3 polyhedron framework during cycling, while XANES measurements in the operando regime confirmed the multielectron transfer upon sodium intercalation/extraction into NaNbV(PO4)3. This electrode material demonstrates extended cycling stability and excellent rate capability maintaining the capacity value of 144 mAh·g-1 at 10 C current rates. It can be regarded as a superior anode material suitable for application in high-power and long-life sodium-ion batteries.

P2-Type Moisture-Stable and High-Voltage-Tolerable Cathodes for High-Energy and Long-Life Sodium-Ion Batteries.

P2-Na0.67Ni0.33Mn0.67O2 represents a promising cathode for Na-ion batteries, but it suffers from severe structural degradation upon storing in a humid atmosphere and cycling at a high cutoff voltage. Here we propose an in situ construction to achieve simultaneous material synthesis and Mg/Sn cosubstitution of Na0.67Ni0.33Mn0.67O2 via one-pot solid-state sintering. The materials exhibit superior structural reversibility and moisture insensitivity. In-operando XRD reveals an essential correlation between cycling stability and phase reversibility, whereas Mg substitution suppressed the P2-O2 phase transition by forming a new Z phase, and Mg/Sn cosubstitution enhanced the P2-Z transition reversibility benefiting from strong Sn-O bonds. DFT calculations disclosed high chemical tolerance to moisture, as the adsorption energy to H2O was lower than that of the pure Na0.67Ni0.33Mn0.67O2. A representative Na0.67Ni0.23Mg0.1Mn0.65Sn0.02O2 cathode exhibits high reversible capacities of 123 mAh g-1 (10 mA g-1), 110 mAh g-1 (200 mA g-1), and 100 mAh g-1 (500 mA g-1) and a high capacity retention of 80% (500 mA g-1, 500 cycles).

Ti, F Codoped Sodium Manganate of Layered P2-Na 0.7 MnO 2.05 Cathode for High Capacity and Long-Life Sodium-Ion Battery

Open AccessRenewablesRESEARCH ARTICLES14 Jan 2023Ti, F co-doped Sodium Manganate of Layered P2-Na0.7MnO2.05 Cathode for High Capacity and Long-life Sodium Ion Battery Pengchao Wen, Haodong Shi, Dandan Guo, Aimin Wang, Yan Yu and Zhong-Shuai Wu Pengchao Wen Google Scholar More articles by this author , Haodong Shi Google Scholar More articles by this author , Dandan Guo Google Scholar More articles by this author , Aimin Wang Google Scholar More articles by this author , Yan Yu Google Scholar More articles by this author and Zhong-Shuai Wu Google Scholar More articles by this author https://doi.org/10.31635/renewables.022.202200012 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail The development of layered sodium manganese oxides cathode materials with high capacity and structural stability is one of the keys to boost the performance of sodium-ion batteries (SIBs), but remains a great challenge. Herein, a titanium and fluorine co-doped P2 type sodium manganate of Na0.7MnO2.05 cathode material (NMO-0.1TF) is developed as high-capacity and long-durable cathode for high-performance SIBs. The titanium and fluorine co-doping could significantly reduce the structural deformation, synergistically improved structural stabilization, inhibit the formation of irreversible phases and enhance electrochemical kinetics. As a result, the NMO-0.1TF||Na battery working in the voltage ranges of 2.0-4.2 V exhibits a high specific capacity of 227 mAh g-1 at current density of 20 mA g-1, and excellent rate performance (76 mAh g-1 at a high current density of 3 A g-1). Such battery still delivers an outstanding cycle stability, shows a high initial discharge capacity of 133 mAh g-1 at 1 A g-1, and maintains the initial capacity of 96.2% after 200 cycles. More importantly, the assembled full battery of NMO-0.1TF||hard carbon validates high capacity and impressive cyclability. Therefore, this co-doped NMO-0.1TF cathode with high capacity and excellent stability presents brilliantly practical application for developing high energy density SIBs. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2023 Chinese Chemical Society Downloaded 7 times PDF downloadLoading ...

Ti, F Codoped Sodium Manganate of Layered P2-Na 0.7 MnO 2.05 Cathode for High Capacity and Long-Life Sodium-Ion Battery

Ti, F Codoped Sodium Manganate of Layered P2-Na _0.7 MnO _2.05 Cathode for High Capacity and Long-Life Sodium-Ion Battery

A low-strain metal organic framework for ultra-stable and long-life sodium-ion batteries

As sodium-ion batteries (SIBs) attract more attention, various host materials allowing Na-ions insertion/extraction are being developed. Among them, Prussian blue analogues (PBAs), as typical metal organic frameworks, are regarded as promising cathodes for SIBs because of their open frame structure and simple synthesis process. However, the presence of [Fe(CN)6] vacancies and crystal water in PBA framework usually induce poor electrochemical performance. Herein, high quality Na-rich monoclinic nickel hexacyanoferrate Na1.95Ni[Fe(CN)6]0.89·2.87H2O with nanocubes morphology (NiHCF–NCs) has been prepared through a simple diethylenetriaminepentaacetic acid disodium (Na2DTPA)-assisted coprecipitation strategy. Benefiting from inhibiting defects and low-strain sodium storage mechanism, as-obtained NiHCF–NCs exhibits superior electrochemical properties in terms of high capacity (81.3 mAh g−1), excellent rate capability (64.5 mAh g−1 at 4000 mA g−1), and outstanding cycle performance (97.1% capacity retention over 2000 cycles). Moreover, full-cell assembled with NiHCF–NCs cathode and NaTi2(PO4)3@C anode presents competitive behaviors of good rate capability and ultra-long cycle lifespan over 5000 cycles, greatly promoting the development of SIBs in practical application.

A fluorinated O3-type layered cathode for long-life sodium-ion batteries

The fluorination of O3-type layered Na[Ni0.5Mn0.5]O2 cathodes effectively mitigates destructive phase transitions and concomitant microcracking and suppresses the parasitic reaction with electrolyte.

Artificial cathode electrolyte interphase by functional additives toward long-life sodium-ion batteries

Although Na0.67Fe0.5Mn0.5O2 has attracted tremendous attentions as a cathode material for sodium-ion batteries (NIBs), undesirable side reactions at the interphase between the electrode and electrolyte have limited its wide utilization. An effective way to prevent the side reaction is to artificially induce a mechanically robust and chemically stable cathode electrolyte interphase (CEI). In this paper, functional additives of NaF and Na2CO3 were used to artificially form a thick and stable CEI layer, and their effects were deeply investigated. It was demonstrated that the functional additives in electrolytes could be partially decomposed during a charge process, then it could play a key role in forming a thick and stable interphase directly on the cathode surface. The newly formed CEI layer could sup- press the dissolution of transition metals into the electrolyte and prevent the deterioration of the solid interphase layer. As a result, the additives successfully prevent the capacity fading problem of Na0.67Fe0.5Mn0.5O2 during electrochemical cycling, which results in the improved cyclability compared to the bare Na0.67Fe0.5Mn0.5O2. We believe that the addition of functional additive is a simple and cost-effective way to artificially form a stable CEI layer on a cathode, therefore, this approach is expected to be widely applicable to other electrode materials that suffer from the unstable interfaces.

One-step large-scale fabrication of Bi@N-doped carbon for ultrahigh-rate and long-life sodium-ion battery anodes

Bismuth has been deemed to be the promising anode material for sodium-ion batteries on account of large volumetric capacity (3800 mAh cm−3) and high electrical conductivity. However, huge volume change during sodiation/desodiation usually causes pulverization of electrode, leading to poor rate performance and cycling stability. Herein, one-step large-scale fabrication of bismuth@N-doped carbon (Bi@C) is proposed to construct well-behaved electrode materials for sodium-ion batteries. Surprisingly, the Bi@C anode presents superior sodium storage performance, manifesting a high specific capacity (346 mAh g−1 at 0.1 A g−1), excellent rate stability (274 mAh g−1 under ultrahigh current density of 50 A g−1) and long life span (344 mAh g−1 at 1 A g−1 after cycling over 1500 times, 0.003% loss per cycle). Such excellent performances of Bi@C are attributed to the nano-sized Bi particles (~ 15 nm) encapsulated by thin carbon layer doped with N. These structural characteristics optimize the ion transfer and increase the accessible area between electrode and electrolyte, and then give a high capacitive contribution to the capacity.

High-mass-loading Sn-based anode boosted by pseudocapacitance for long-life sodium-ion batteries

Sodium-ion batteries (SIBs) are considered as a promising alternative to lithium-ion batteries in large-scale energy storage due to the abundant sodium resources and low cost. However, the practical applications are still hindered by several factors such as limited cycling life and low mass loading of the electrode. Herein, a uniform free-standing Sn-based (Sn@CFC) electrode was synthesized via a facile electrospinning method. The cross-link nitrogen-doped carbon fiber and ultrasmall metallic Sn nanoparticles together provide fast ions and electrons pathway, enabling a dominant pseudocapacitance contribution of 87.1% at a scan rate of 0.5 mV s−1. The Sn@CFC electrode hence exhibits a high reversible area capacity of 1.68 mAh cm−2 at 50 mA g−1 and long cycle life of 1000 cycles at 200 mA g−1 with more than 80% capacity retention. Moreover, the facile manufacturing technique yields the Sn@CFC electrode with an extremely high mass loading of 5.5 mg cm−2 with very little sacrifice of electrochemical performances. This study provides a promising route to scalably fabricate electrodes with high area capacity and high energy density for advanced SIBs.