Hierarchy Design in Metal Oxides as Anodes for Advanced Lithium‐Ion Batteries

Jin, Jun; Wu, Liang; Huang, Shaozhuan; Yan, Min; Hongen, Wang; Chen, Lihua; Hasan, Tawfique; Li, Yu; Su, Bao‐Lian

doi:10.1002/smtd.201800171

Cited by 77 publications

(35 citation statements)

References 118 publications

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“…[ 12–14 ] However, the commercial LIBs based on transition metal‐based inorganic compounds have encountered a bottleneck. [ 15–17 ] The charge storage of inorganic electrode materials is governed by the oxidation‐state variation of transition metal centers and achieved a charge balance with the insertion of counterions. [ 18 ] Restricted by crystal lattice and structure stability, the size and valence of counterions are required to match the crystal structures, which severely limit further improvement of energy density.…”

Section: Introductionmentioning

confidence: 99%

Covalent–Organic Frameworks: Advanced Organic Electrode Materials for Rechargeable Batteries

Sun

Xie

Guo

et al. 2020

Advanced Energy Materials

492

329

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energy-storage systems with high specific energy, long lifespan, and excellent safety. [5][6][7] Among them, the rechargeable secondary batteries have been demonstrated as the most promising candidate for electricity storage and utilization. [8][9][10][11] As one of the most popular batteries, lithium-ion batteries (LIBs) have found immense success in consumer electronics and electric vehicles, and are under the consideration for energy-storage power stations. [12][13][14] However, the commercial LIBs based on transition metal-based inorganic compounds have encountered a bottleneck. [15][16][17] The charge storage of inorganic electrode materials is governed by the oxidation-state variation of transition metal centers and achieved a charge balance with the insertion of counterions. [18] Restricted by crystal lattice and structure stability, the size and valence of counterions are required to match the crystal structures, which severely limit further improvement of energy density. [19][20][21] Clearly, these factors intrinsically weaken the versatility of inorganic materials. For instance, the similar electrode materials, which are successful in LIBs, are not suitable for other alkali ions batteries. [22][23][24] Additionally, from the viewpoint of economical and renewable factors of mineral resources, the existing LIBs based on transition metals (e.g., cobalt, nickel, and manganese) are difficult to meet the requirement of large-scale energy storage. [25] Nowadays, various demands have been raised up for the state-ofthe-art batteries, not only in the enhancement of cycle life, fast charging, and safety, but also in the focus of cost, lightweight, pollution-free, and environmental benign. [26,27] Under this background, researchers gradually shift their studies on novel batteries system and electrode materials. [28][29][30][31] Among them, explorations on the possibility of using organic compounds as potential alternatives of current inorganic electrode materials have never been stopped. [32,33,66] Organics have been demonstrated as promising electrode candidates due to their variety, sustainability, relatively low cost, and environmental friendliness. [34][35][36] The structural diversity implies that the richness of organic materials will provide abundant options and room in this field. The molecule engineering means that the electrochemical properties of organic electrodes can be rationally tuned with different functional groups, which exhibits a good designability of organic materials. These important features allow various designable synthetic routes and convenient functionalization. Although organic electrode materials are endowed with many advantages, their development and Covalent-organic frameworks (COFs), featuring structural diversity, framework tunability and functional versatility, have emerged as promising organic electrode materials for rechargeable batteries and garnered tremendous attention in recent years. The adjustable pore configuration, coupled with the functionalization of frameworks through ...

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Section: Introductionmentioning

confidence: 99%

Covalent–Organic Frameworks: Advanced Organic Electrode Materials for Rechargeable Batteries

Sun

Xie

Guo

et al. 2020

Advanced Energy Materials

492

329

View full text Add to dashboard Cite

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“…Presently, electric vehicle technology advances require high energy density from Li‐ion batteries for commercial realization. Ni‐rich materials have attracted much attention as potential candidates due to their high reversible capacity, discharge working voltage, and relatively low costs .…”

Section: Introductionmentioning

confidence: 99%

Boosting Cell Performance of LiNi_0.8Co_0.15Al_0.05O₂ via Surface Structure Design

Zheng

Yang

Dai

et al. 2019

Small

101

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10. 1002/smll.201904854. Although the high energy density and environmental benignancy of LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) holds promise for use as cathode material in Li-ion batteries, present low rate capabilities, and fast capacity fade limit its broad commercial applications. Here, it is reported that surface modification of NCA cathode (R-3m) with 5 nm-thick nanopillar layers and Fm-3m structures significantly improves electrode structure, morphology, and electrochemical performance. The formation of nanopillar layers increases cycling and working voltage stability of NCA by shielding the host material from hydrofluoric acid and improves structural stability with the electrolyte. The modified NCA cathode exhibits an enhanced 89% capacity retention at a rate of 1 C over that of pristine NCA (75.2%) after 150 cycles and effectively suppresses working voltage fade (a drop of 0.025 V after 300 cycles) during repeated charge-discharge cycles. In addition, the diffusion barrier of Li ions in NCA crystals at 0.80 V is noticeably smaller than that of Li ions in pristine NCA (0.87 eV). These findings demonstrate that this unique surface structure design considerably enhances cycle and rate performance of NCA, which has potential applications in other Ni-rich layered cathode materials. www.advancedsciencenews.com oxide precursor with a manganese-rich surface. Finally, the obtained precursor was sintered with Li salt to generate NCA with pillar layers on the surface. This unique surface treatment strategy can effectively stabilize the structure of the host Ni-rich material, which enables NCA to exhibit superb cycle performance and high rate capability.

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“…To our knowledge, the kinetic properties such as the diffusion coefficients of lithium ions and charge transfer resistance have not been documented, which plays a vital role on the electrochemical performances of material, especially the rate capacity. On the other hand, for transition metal oxides anode, the electrochemical performance of the first discharge-charge process is totally different from that of the subsequent cycles (11) .…”

Section: Transition Metal Vanadates Oxides (Zn3(oh)2v2o7•2h2o) Is An mentioning

confidence: 96%

The kinetic investigation of Zn3(OH)2V2O7•2H2O nanosheets at various conditions by In-situ Electrochemical Impedance Spectroscopy

Liu¹,

Liu²

2019

Preprint

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In this paper, two dimensional nanosheet (2D) crystal, formulated as Zn3(OH)2V2O7•2H2O has been synthesized by a facile hydrothermal method. Its crystal facet, morphology and structural evolutions of the resulting material are characterized with considerable temporal resolution. Applied for anode of lithium-half batteries, the powder that is thermally treated for approximately exhibits a rather high capacity, long-term cycling stability, and good rate capability due to intrinsically great surface area, the trimmed diffusion distance and probably synergetic effects of Zn and V ions. Furthermore, the in-situ electrochemical impedance spectra of ZVO-10 during the initial discharge–charge cycle are simulated based on the equivalent electrical circuit and the non-linear least square regression method. The results support the fact that the kinetics property changes, significantly, when discharged to 0.5 V, and then keeps stability in the charge.

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Hierarchy Design in Metal Oxides as Anodes for Advanced Lithium‐Ion Batteries

Cited by 77 publications

References 118 publications

Covalent–Organic Frameworks: Advanced Organic Electrode Materials for Rechargeable Batteries

Covalent–Organic Frameworks: Advanced Organic Electrode Materials for Rechargeable Batteries

Boosting Cell Performance of LiNi_0.8Co_0.15Al_0.05O₂ via Surface Structure Design

The kinetic investigation of Zn3(OH)2V2O7•2H2O nanosheets at various conditions by In-situ Electrochemical Impedance Spectroscopy

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Hierarchy Design in Metal Oxides as Anodes for Advanced Lithium‐Ion Batteries

Cited by 77 publications

References 118 publications

Covalent–Organic Frameworks: Advanced Organic Electrode Materials for Rechargeable Batteries

Covalent–Organic Frameworks: Advanced Organic Electrode Materials for Rechargeable Batteries

Boosting Cell Performance of LiNi0.8Co0.15Al0.05O2 via Surface Structure Design

The kinetic investigation of Zn3(OH)2V2O7•2H2O nanosheets at various conditions by In-situ Electrochemical Impedance Spectroscopy

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About

Boosting Cell Performance of LiNi_0.8Co_0.15Al_0.05O₂ via Surface Structure Design