Li2NaV2(PO4)3: A novel composite cathode material with high ratio of rhombohedral phase

Tang, Yuanhao; Wang, Chenyun; Zhou, Jingjing; Bi, Yujing; Liu, Yang; Wang, Deyu; Shi, Siqi; Li, Guobao

doi:10.1016/j.jpowsour.2012.11.020

Cited by 45 publications

(38 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The capacity and capacity retention rate are both beyond the Tang's report. 18 The electrode of LNVP/C delivers an initial discharge capacity of 106 mAh g ¹1 at 2 C, higher than the capacity Zhang's report. 12 After 150 cycles, about 86.8% of the initial capacity is maintained.…”

Section: Resultsmentioning

confidence: 65%

“…However, approximately 10% of the capacity is lost through the first 50 cycles, showing low reversible capacity. Then, Tang et al 18 developed a composite Li 2 NaV 2 (PO 4 ) 3 /C by a simple solid state reaction utilizing the aforementioned mechanism. The material comprises of Rhom-LVP, Mono-LVP and Rhom-NVP, coexistent with a ratio of 59:10:31.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sodium Citrate Induced Sol-gel Synthesis of Rhombohedral Structure Li2NaV2(PO4)3/C Composite with High Capacity and Stability as Cathode for Lithium–ion Batteries

et al. 2019

View full text Add to dashboard Cite

The rhombohedral structure Li 2 NaV 2 (PO 4) 3 /C composites were successfully synthesized by a sodium citrate induced sol-gel method. The Li 2 NaV 2 (PO 4) 3 /C consists of microplates roughly 80-90 nm in thin. The carbon content in the LNVP/C is approximately 8.29 wt%. As cathode materials for lithium-ion batteries, a cathodic peak at 3.67 V and an anodic peak at 3.82 V can be seen in CV curves, corresponding to the redox couple of V 4+ /V 3+. In addition, the electrode can deliver an initial discharge capacity of 111.4 mAh g −1 at 1 C and about 96.4% of the initial capacity is maintained after 150 cycles. LNVP/C also exhibits high coulomb efficiency and good rate performance.

show abstract

Section: Resultsmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Sodium Citrate Induced Sol-gel Synthesis of Rhombohedral Structure Li2NaV2(PO4)3/C Composite with High Capacity and Stability as Cathode for Lithium–ion Batteries

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The lattice parameters of M‐LVP, R‐LVP and R‐NVP in each sample are shown in Table S1. Compared to the pure monoclinic LVP (Table S1), the cells volume of M‐LVP in three samples are bigger due to the lattice distortion and doping effects caused by Na‐ions . Therefore, the trace amount of R‐NVP can promote the formation of R‐LVP and increase its stability.…”

Section: Resultsmentioning

confidence: 92%

Porous Isomeric Li_2.5Na_0.5V₂(PO₄)₃ Wide Voltage Cathode for High‐Performance Lithium‐Ion Batteries Synthesized Through a Colloid Chemical Method

Wang

Zhang

et al. 2019

ChemElectroChem

View full text Add to dashboard Cite

The synthesis of highly active and stable cathode materials for lithium‐ion batteries (LIBs) is a major challenge for electrochemical energy storage. Herein, we report an isomeric Li2.5Na0.5V2(PO4)3 porous nanoparticle composite synthesized through a colloid chemical strategy. This composite is composed of monoclinic Li3V2(PO4)3 (M–LVP), rhombohedral Li3V2(PO4)3 (R‐LVP) and rhombohedral Na3V2(PO4)3 (R‐NVP). Benefiting from the porous structure and synergistic effects between the stable M−LVP and highly conductive R‐LVP, this composite cathode exhibits outstanding electrochemical performance for LIBs. It shows a high discharge capacity of 228.1 mAh g−1 at 0.1 C rate (1 C=150 mA g−1) and 108.9 mAh g−1 at 10 C rate in a wide potential range between 1.5 and 4.3 V. Moreover, even in a high current density of 10 C, it still exhibits a stable cycle performance and retains a discharge capacity of 80 mAh g−1 after 500 cycles.

show abstract

“…Soon afterwards, in 2017, Wang et al further investigated the sodium storage properties of the Li 3− x Na x V 2 (PO 4 ) 3 species, showing that the simultaneous presence of lithium and sodium can effectively enhance the energy storage properties of the species. Furthermore, Cushing and Goodenough reported the structure of R‐Li 2 NaV 2 (PO 4 ) 3 , and subsequent in‐depth research on the electrochemical properties of diamond‐structured and mixed‐phase Li 2 NaV 2 (PO 4 ) 3 revealed that this material exhibits good Li storage performance . Mao et al probed the electrochemical properties of a full battery based on Li 2 NaV 2 (PO 4 ) 3 species, while Zhu et al reported that the Li storage performance of Li 0.95 Na 0.05 Ti 2 (PO 4 ) 3 is superior to that of LiTi 2 (PO 4 ) 3 .…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, Cushing and Goodenough reported the structure of R-Li 2-NaV 2 (PO 4 ) 3 , 24 and subsequent in-depth research on the electrochemical properties of diamond-structured and mixed-phase Li 2 NaV 2 (PO 4 ) 3 revealed that this material exhibits good Li storage performance. 25,26 Mao et al probed the electrochemical properties of a full battery based on Li 2 NaV 2 (PO 4 ) 3 species, 27 while Zhu et al reported that the Li storage performance of Li 0.95 Na 0.05 Ti 2 (PO 4 ) 3 is superior to that of LiTi 2 (PO 4 ) 3 . 28 The above results show that the ratio of lithium to sodium can affect the electrochemical properties of the species.…”

mentioning

confidence: 99%

Synthesis and electrochemical performance of Na _{3−
x} Li _x V ₂ (PO ₄ ) ₃ /C as cathode materials for Li‐ion batteries

et al. 2019

View full text Add to dashboard Cite

Summary Herein, a series of lithium‐sodium hybrid ion Na3−xLixV2(PO4)3/C (x = 2.5, 2.0, 1.5, 1.0, 0.5) as cathode materials are prepared by sol‐gel method. The lithium storage properties of Na3−xLixV2(PO4)3/C reveal that the lithium sodium ratio has a strong influence on material structure and the electrochemical properties. The multiple voltage platforms are observed at charge and discharge curve for the Na0.5Li2.5V2(PO4)3 material, as it contains rhombohedral and monoclinic Li3V2(PO4)3 phases, whereas a single voltage platform can be observed when x is less than 2, which are mixtures of Na3V2(PO4)3 with rhombohedral structure and Li3V2(PO4)3 with rhombohedral structure. Notably, NaLi2V2(PO4)3/C prepared by the calcination at 700°C for 8 hours contains a single rhombohedral phase. And when the charging and discharging voltage at the range 2.5 to 4.5 V and current density at 0.5C, NaLi2V2(PO4)3/C and Na2.5Li0.5V2(PO4)3/C are prepared by the pre‐calcination at 400°C for 4 hours and subsequent calcination at 750°C for 8 hours exhibit high first‐cycle specific discharge capacities of 124.8 and 130.0 mAh·g−1. The capacities are 118.4 and 115.1 mAh·g−1 after 50 cycles, indicating excellent capacity retention.

show abstract

Li2NaV2(PO4)3: A novel composite cathode material with high ratio of rhombohedral phase

Cited by 45 publications

References 15 publications

Sodium Citrate Induced Sol-gel Synthesis of Rhombohedral Structure Li<sub>2</sub>NaV<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/C Composite with High Capacity and Stability as Cathode for Lithium–ion Batteries

Sodium Citrate Induced Sol-gel Synthesis of Rhombohedral Structure Li<sub>2</sub>NaV<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/C Composite with High Capacity and Stability as Cathode for Lithium–ion Batteries

Porous Isomeric Li_2.5Na_0.5V₂(PO₄)₃ Wide Voltage Cathode for High‐Performance Lithium‐Ion Batteries Synthesized Through a Colloid Chemical Method

Synthesis and electrochemical performance of Na _{3−
x} Li _x V ₂ (PO ₄ ) ₃ /C as cathode materials for Li‐ion batteries

Contact Info

Product

Resources

About

Li2NaV2(PO4)3: A novel composite cathode material with high ratio of rhombohedral phase

Cited by 45 publications

References 15 publications

Sodium Citrate Induced Sol-gel Synthesis of Rhombohedral Structure Li<sub>2</sub>NaV<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/C Composite with High Capacity and Stability as Cathode for Lithium–ion Batteries

Sodium Citrate Induced Sol-gel Synthesis of Rhombohedral Structure Li<sub>2</sub>NaV<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/C Composite with High Capacity and Stability as Cathode for Lithium–ion Batteries

Porous Isomeric Li2.5Na0.5V2(PO4)3 Wide Voltage Cathode for High‐Performance Lithium‐Ion Batteries Synthesized Through a Colloid Chemical Method

Synthesis and electrochemical performance of Na 3− x Li x V 2 (PO 4 ) 3 /C as cathode materials for Li‐ion batteries

Contact Info

Product

Resources

About

Porous Isomeric Li_2.5Na_0.5V₂(PO₄)₃ Wide Voltage Cathode for High‐Performance Lithium‐Ion Batteries Synthesized Through a Colloid Chemical Method

Synthesis and electrochemical performance of Na _{3−
x} Li _x V ₂ (PO ₄ ) ₃ /C as cathode materials for Li‐ion batteries