Novel Nb26Mo4O77 rod-like nanoparticles anode with enhanced electrochemical performances for lithium-ion batteries

Ma, Xiaohang; Yu, Changyong; Chen, Xian; Hu, Jing; Cheng, Nan; Chen, Hao; Chen, Pengzhi; Guo, Yanqing; Chen, Jialong; Zi, Zhenfa; Dai, Jianming

doi:10.1016/j.jallcom.2021.161853

Cited by 4 publications

(1 citation statement)

References 33 publications

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“…The use of niobium oxides as anode materials in LiB has been extensively documented. However, only a few studies have been carried out to investigate the molybdenum niobium oxide as an anode electrode for LiB. − …”

Section: Introductionmentioning

confidence: 99%

Improved Performance of Li-Added Mo–Nb Oxide as the Anode for Li-Ion Batteries with N-Carbon Coating

Gultom

Hsieh

Liao

et al. 2022

ACS Appl. Energy Mater.

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High capacity, fast charging/discharging, safe operation, and long cycle-time are the essential properties of lithium-ion batteries (LiBs) for electric vehicles and large-scale energy storage applications. To meet those properties, an alternative anode has to be developed to replace the traditional graphite electrode. This study aims to demonstrate the effectiveness of Mo–Nb oxide (MNO)-based anode material for fast charging LiB. LiOH is primarily used not only as a source of Li dopant but also as a sintering agent during the solid-state reaction to lower the calcination temperature. After lithium doping, the electrochemical test shows that the C-rate coefficients and capacity retention increase from 12 to 20 C and from 23 to 70.3%, respectively. To further improve the electronic conductivity, Li-added MNO (Li-MNO) is coated with a conductive nitrogen-doped carbon (NC) layer by the pyrolysis method under an argon atmosphere. With more excellent electronic conductivity, the Li-MNO/NC delivers higher specific capacities of 112, 76, and 42 mAhg–1 at high C-rates of 5, 10, and 20 C, respectively, as compared to the Li-MNO with capacities of 75, 50, and 22.8 mAhg–1 at the same C-rates. It retains 70% of its capacity after 100 cycles.

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Section: Introductionmentioning

confidence: 99%

Improved Performance of Li-Added Mo–Nb Oxide as the Anode for Li-Ion Batteries with N-Carbon Coating

Gultom

Hsieh

Liao

et al. 2022

ACS Appl. Energy Mater.

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Extraction of Lithium and Synthesis of Kaolinite from α‐Spodumene via Alkali Calcination

Xiong,

Hu,

Liu

et al. 2024

ChemistrySelect

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Extracting lithium from spodumene by sulfuric acid roasting is the largest commercialized way at present, which not only consumes a large amount of energy but also produces massive waste residue that will cause environmental problems. In this work, a new process for extracting lithium by directly decomposing α‐spodumene through alkali calcination is designed. The reaction of α‐spodumene with Na2CO3 at 750 °C for 2 h can decompose it and form nepheline and lithium silicate/sodium silicate. The nepheline and soluble lithium silicate/sodium silicate are separated by water leaching, and 93.9 % of lithium can be leached under optimal conditions. In addition, the synthesis of nano‐kaolinite is investigated with nitric acid solutions. Conversions of 98.7 % were obtained with 0.4 M nitric acid at 250 °C and an L/S ratio of 17.5 L/kg. The water leachate can precipitate Li2CO3 with a purity of 99.0 % by CO2 after desilicated by CaO. The final yields of Li2CO3 and kaolinite relative to the Li and Si content of the starting minerals are 91.4 % and 48.5 %, respectively. This new method achieves the full utilization of spodumene with lower energy consumption and demonstrates great potential for industrial applications.

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Enhancing niobium-based oxides for high-performance lithium-ion batteries through hydrogenation

Fatile,

Pugh,

Medraj

2023

J Solid State Electrochem

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Novel Nb26Mo4O77 rod-like nanoparticles anode with enhanced electrochemical performances for lithium-ion batteries

Cited by 4 publications

References 33 publications

Improved Performance of Li-Added Mo–Nb Oxide as the Anode for Li-Ion Batteries with N-Carbon Coating

Improved Performance of Li-Added Mo–Nb Oxide as the Anode for Li-Ion Batteries with N-Carbon Coating

Extraction of Lithium and Synthesis of Kaolinite from α‐Spodumene via Alkali Calcination

Enhancing niobium-based oxides for high-performance lithium-ion batteries through hydrogenation

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