Nanostructured lithium-free oxyanion cathode, Li x Co2(MoO4)3 [0≤ x &lt;3] for 3 V class lithium batteries

Begam, K. M.; Michael, M. S.; Prabaharan, S. R. S.

doi:10.1007/s10008-007-0457-3

Cited by 9 publications

(11 citation statements)

References 19 publications

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“…However, the Mo 6+ /Mo x+ redox couple was found to be irreversible in most cases, perhaps due to the instability of tetrahedrally coordinated Mo 5+ or Mo 4+ ions. 219 Arroyo-de Dompablo et al 220,221 investigated the electrochemical performance of olivine-LiCoAsO 4 experimentally and computationally. Both experimental and computational results show LiCoAsO 4 is electrochemically active with an average insertion voltage of 4.7 V, which is slightly lower (about 0.1 V) than its phosphate analogues LiCoPO 4 , due to the slightly less covalent nature of the AsO 4 3À group.…”

Section: Other Polyanion Compoundsmentioning

confidence: 99%

Recent advances in the research of polyanion-type cathode materials for Li-ion batteries

Gong

Yang

2011

Energy Environ. Sci.

482

308

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In the past decades, research efforts on polyanion-type cathode materials by the scientific community intensified significantly. This paper reviews the latest advances in the exploration and development of polyanion-type compounds as high performance cathode materials for Li-ion batteries. It focuses on the synthesis, structure and physicochemical (especially electrochemical) properties of several classes of polyanion compounds. The relationship between composition-structure-performance of the novel electrode materials is also summarized and analyzed. The main approaches, achievements and challenges in this field are briefly commented and discussed.National Natural Science Foundation of China[20873115, 21021002, 90606015]; National Basic Research Program of China (973 program)[2007CB209702, 2011CB935903

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Section: Other Polyanion Compoundsmentioning

confidence: 99%

Recent advances in the research of polyanion-type cathode materials for Li-ion batteries

Gong

Yang

2011

Energy Environ. Sci.

482

308

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“…Co 2 (MoO 4 ) 3 structure shows more than 2 Li/f.u. with available redox couples of Co 3+ /Co 2+ and Mo 6+ /Mo 5+ vs. Li + /Li . Li 3 Fe(MoO 4 ) 3 material also shows the existence of multi electron transfer with formation of amorphous Fe−O and Li‐Mo−O phase at C/10 rate in the voltage window of 1.0 −4.0 V .…”

Section: Introductionmentioning

confidence: 92%

Electrochemical Lithium and Sodium Insertion Studies on Tungsten Oxyphosphate

Satyanarayana

Upadhyayula

2017

ChemistrySelect

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Electrochemical Li insertion/de‐insertion studies were performed on monoclinic W2O3(PO4)2 in the voltage window of 3.5‐1.8 V vs. Li+/Li. At C/5 rate, 2.0 Li+ ions/f.u (90 mAh g−1 ) are inserted in the lattice during first discharge and 1.75 Li+ ions (75 mAh g−1 ) are de‐inserted during first charge with a reversible two phase process. A stable discharge capacity of 65 and 55 mAh g−1 were obtained in the voltage window of 3.5‐1.8 V and 3.5‐2.25 V at C/5 rate, respectively. In case of discharge to 1.4 V, the initial discharge capacity of 200 mAh g−1 was obtained with insertion of 4.5 Li+ ions. The irreversible phase change was observed on charge with 11th cycle discharge capacity of 50 mAh g−1. The X‐ray photo electron spectroscopy analysis shows the feasibility of W6+/ W5+ and W5+/W4+ redox couples vs. Li+/Li. The sodium ion insertion into the crystal lattice leads to poor reversibility with delivered discharge capacity of 30 mAh g−1 at the end of 25 cycles at C/5 rate in the voltage window of 1.2‐3.0 V vs. Na+/Na. Ex‐situ X‐ray diffraction patterns indicate that Li insertion/de‐insertion was possible in the parent phase. Formation of a new phase was observed which was also amenable for facile insertion/de‐insertion of Li. Both the parent as well as the new phase undergoes reversible phase transitions during the process of insertion/de‐insertion of Li in the voltage window of 1.8‐3.5 V.

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“…Comparison of first charge/discharge of nano-composite and conventional Li 2 M 2 (MoO 4 ) 3 against lithium between 4.9 and 1.5 V. . (Prabaharan et al, , 2007(Prabaharan et al, , 2008.…”

Section: Modification In the Electrochemical Properties Of Polyanion mentioning

confidence: 99%

NASICON Open Framework Structured Transition Metal Oxides for Lithium Batteries

Begam¹,

Michael²,

Prabaharan³

2010

Lithium-Ion Batteries

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Nanostructured lithium-free oxyanion cathode, Li x Co2(MoO4)3 [0≤ x <3] for 3 V class lithium batteries

Cited by 9 publications

References 19 publications

Recent advances in the research of polyanion-type cathode materials for Li-ion batteries

Recent advances in the research of polyanion-type cathode materials for Li-ion batteries

Electrochemical Lithium and Sodium Insertion Studies on Tungsten Oxyphosphate

NASICON Open Framework Structured Transition Metal Oxides for Lithium Batteries

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