https://onlinelibrary.wiley.com/doi/pdf/10.1002/smtd.202000218

A Chronicle Review of Nonsilicon (Sn, Sb, Ge)-Based Lithium/Sodium-Ion Battery Alloying Anodes

The past decade has witnessed a rapidly growing interest toward sodium ion battery (SIB) for large-scale energy storage in view of the abundance and easy accessibility of sodium resources. Key to addressing the remaining challenges and setbacks and to translate lab science into commercializable products is the development of high-performance anode materials. Anode materials featuring combined conversion and alloying mechanisms are one of the most attractive candidates, due to their high theoretical capacities and relatively low working voltages. The current understanding of sodium-storage mechanisms in conversion-alloying anode materials is presented here. The challenges faced by these materials in SIBs, and the corresponding improvement strategies, are comprehensively discussed in correlation with the resulting electrochemical behavior. Finally, with the guidance and perspectives, a roadmap toward the development of advanced conversion-alloying materials for commercializable SIBs is created.

Conversion-Alloying Anode Materials for Sodium Ion Batteries

Room-temperature solid-state sodium batteries (SSBs) are viewed as one of the most promising candidates for next-generation energy storage devices because of their cost-effectiveness, safety perfor...

Reducing Interfacial Resistance by Na-SiO2 Composite Anode for NASICON-Based Solid-State Sodium Battery

Lithium ion-containing Na+ Super Ionic Conductor (NASICON) electrolytes are important materials for new energy-storage technologies. The NASICON abbreviation represents several compounds with simil...

Methods for Lithium Ion NASICON Preparation: From Solid-State Synthesis to Highly Conductive Glass-Ceramics

Facile synthesis of Sb nanoparticles anchored on reduced graphene oxides as excellent anode materials for lithium-ion batteries

An insight into the effect of g-C3N4 support on the enhanced performance of ZnS nanoparticles as anode material for lithium-ion and sodium-ion batteries

Microstructure and electrochemical characteristics of glass anode composition (100-x) (0.7[0.625SnO-0.375GeO2]-0.3Sb2O3)-xBaO (x = 0, 2, 4, 6 and 8 mol%, labeled as Bx) for the sodium battery is analyzed. The absence of peaks in the XRD traces related to glass former (Sb2O3) after discharging is directly confirmed that the antimony content retains its amorphous phase even after the samples are being discharged. Several nanosized amorphous intermediate domains are precipitated in the bright region of Sn-Ge-Sb glass network as appeared in TEM results. Except for the sample B6, all the other samples exhibited two sloping sodiation and de-sodiation plateaus which are almost constant at around 0.62 V and 0.14 V due to the formation of amorphous intermediates domains such as Na9Sn4 and NaSn3 in the glass network. The initial discharge capacity achieved to be highest for B6 sample (838 mA h g−1) and loss of discharge capacity is up to ~31.18% even at high rate 5C. A systematic study can monitor the stable cycle performance and shed light on the design of target glass anode with high capacity and stability.

SnO-GeO2-Sb2O3 glass anode network mixed with different Ba2+ fractions: Investigations on Na-ion storage capacity and stability

High Na-ion conducting Na1+x[SnxGe2−x(PO4)3] glass-ceramic electrolytes: Structural and electrochemical impedance studies

Mixed polyanion glass and glass-ceramic cathodes can have the potential to overcome the disadvantages of achieving high theoretical capacities of promising crystalline network. Three targeted cathode compositions were chosen for the present study (NaFe0.5(VO)0.5PO4, NaMn0.7(VO)0.3PO4 and NaCo0.7(VO)0.3PO4) based on the superior performance over their crystalline counter parts with highest current density ~ 100 mAh/g. XRD results displayed that major crystalline phases (Na2FeP2O7 (COD ID: 4001802), Na2MnP2O7 (ICSD ID: 71229)) which are precipitated with an ordered triclinic, P1 structure. However, Na2CoP2O7 (ICSD ID: 71230) crystalline phase exhibits orthorhombic/P n a 21 structure. The highest conducting glass-ceramic cathode sample NaCo0.7(VO)0.3PO4 (σ = 6.41 × 10−7 S·cm−1) retains its discharge capacity retention as 84.5 mAh g−1 (91%) even after 50 cycles. At a high rate of 10C, NaFe0.5(VO)0.5PO4 cathode sample is achieved to be highest discharge capacity retention 69.7% than NaCo0.7(VO)0.3PO4 (53.76%) which is a significant feature of mixed polyanion family of glass-ceramic cathodes.

Balaji Rao Ravuri

Papers

An insight into the effect of g-C3N4 support on the enhanced performance of ZnS nanoparticles as anode material for lithium-ion and sodium-ion batteries

SnO-GeO2-Sb2O3 glass anode network mixed with different Ba2+ fractions: Investigations on Na-ion storage capacity and stability

High Na-ion conducting Na1+x[SnxGe2−x(PO4)3] glass-ceramic electrolytes: Structural and electrochemical impedance studies

Electrical conductivity and charge/discharge profiles of mixed polyanion glass-ceramic cathodes for use in Na-ion batteries

Mixed Polyanion Na‐Mn‐V‐P Glass–Ceramic Cathode Network: Improved Electrochemical Performance and Stability