Multi-electron reactions for the synthesis of a vanadium-based amorphous material as lithium-ion battery cathode with high specific capacity

Kong, Fanhou; Li, Xue; Yi, Lanlin; Fang, Xiaohui; Yin, Zhongbin; Wang, Yulong; Zhang, Ruixiang; Liu, Longyang; Chen, Qing; Li, Ming-Han; Li, Chang-Jiu; Jiang, Hong; Chen, Yongjun

doi:10.1016/j.energy.2020.119513

Cited by 20 publications

(3 citation statements)

References 49 publications

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“…prepared a series of V 2 O 5 –Li 3 PO 4 glass through multiple‐electron reaction and estimated their electrochemical performance as the cathode of LIBs. [ 105 ] Their results have demonstrated that the ion storage properties of amorphous vanadium oxides decreased with the increasing nanocrystalline of LiV 2 O 5 . However, the vanadium and vanadophosphate glass family still exhibits limited development during long‐term cycling.…”

Section: Application Of Amorphous Materialsmentioning

confidence: 99%

Amorphous Electrode: From Synthesis to Electrochemical Energy Storage

Zhang

Liu

Chen

et al. 2023

Energy & Environ Materials

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Electrochemical batteries and supercapacitors are considered ideal rechargeable technologies for next‐generation energy storage systems. The key to further commercial applications of electrochemical energy storage devices is the design and investigation of electrode materials with high energy density and significant cycling stability. Recently, amorphous materials have attracted a lot of attention due to their more defects and structure flexibility, opening up a new way for electrochemical energy storage. In this perspective, we summarize the recent research regarding amorphous materials for electrochemical energy storage. This review covers the advantages and features of amorphous materials, the synthesis strategies to prepare amorphous materials, as well as the application and modification of amorphous electrodes in energy storage fields. Finally, the challenges and prospective remarks for future development in amorphous materials for electrochemical energy storage are concluded.

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Section: Application Of Amorphous Materialsmentioning

confidence: 99%

Amorphous Electrode: From Synthesis to Electrochemical Energy Storage

Zhang

Liu

Chen

et al. 2023

Energy & Environ Materials

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“…In particular, Wadsley-Roth crystallographic shear phases are attractive as systems such as TiNb 2 O 7 , PNb 9 O 25 , W 5 Nb 16 O 55 , and others have generated considerable interest with their high theoretical capacity, rapid ion conduction, and ability to accommodate greater than 1 Li per transition metal. The multielectron redox for Nb, which arises from its multiple valence states, also exists with other transition metals, including V, , Mo, − and W, , and broadens the scope of fast-charging electrochemical energy storage materials.…”

Section: Introductionmentioning

confidence: 99%

Structure and Electrochemical Properties of Bronze Phase Materials Containing Two Transition Metals

Luo,

Le Calvez,

Zhou

et al. 2023

Chem. Mater.

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Bronze phase transition-metal oxides have recently attracted attention as high-rate lithium-ion battery anode materials. Their crystal structures are distinguished by large tunnels and an open framework, facilitating lithium-ion diffusion and high-rate charge–discharge properties. The presence of two transition metals also offers a route to achieve high energy density from multielectron redox. In this paper, we report the chemistry, structure, and electrochemical properties of two different bronze phase compositions having the same stoichiometry: W3Nb2O14 and Mo3Nb2O14. These materials provide insight into how the transition metals affect the electrochemical behavior and structural stability of bronze phase materials. Mo3Nb2O14 exhibits greater than 1 electron redox per transition metal leading to lithium capacities above 200 mAh g–1 at C/2 but is unable to maintain this high capacity at high rates due to incomplete Mo redox reactions. In contrast, W3Nb2O14 exhibits reversible redox reactions and retains its open structure on cycling. This study highlights the potential of bronze phase materials containing two transition metals to exhibit fast charging properties with a high energy density.

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“…H. Tao and Y. Yue et al [47] succeeded in tuning the degree of disorder in NaFePO4 cathode material by a mechanochemical route, thereby obtaining the excellent cycling stability. To date, applications of vanadium oxide-based amorphous glass electrode materials have been reported by several research groups, examples include vanadium-phosphorus [48][49][50], vanadium-boron [51], vanadium-tellurium [52][53][54], and vanadium-silicon [55], etc. Due to the lack of accurate in situ characterization for amorphous electrode structure, the current research mostly focus on the composition-performance improvement, and the results cannot track the cycle process, reveal the lithiation mechanism, or support theoretical calculations.…”

Section: Introductionmentioning

confidence: 99%