3D LiCoO2 nanosheets assembled nanorod arrays via confined dissolution-recrystallization for advanced aqueous lithium-ion batteries

Li, Xue; Zhang, Qinghua; Zhu, Xiaohui; Gu, Lin; Yue, Ji-Li; Xia, Qiuying; Xing, Ting; Chen, Tingting; Yao, Yao; Xia, Hui

doi:10.1016/j.nanoen.2018.11.085

Cited by 94 publications

(65 citation statements)

References 43 publications

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“…The detailed crystallographic information of K 0.5 V 2 O 5 is shown in Figure S4. By comparing the simulated XRD diffraction patterns of V 2 O 5 and K 0.5 V 2 O 5 , a strong peak at around 7.8° was observed in that of K 0.5 V 2 O 5 , which corresponds to the (100) crystal plane …”

Section: Resultsmentioning

confidence: 65%

Pillaring Effect of K Ion Anchoring for Stable V₂O₅‐Based Zinc‐Ion Battery Cathodes

Zhang

Tao

et al. 2020

ChemNanoMat

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Aqueous zinc-ion batteries (ZIBs) have attracted widespread attention due to their advantages in safety and environmental benignity. However, achieving a cathode material with stable electrochemical performance for such a system remains an ongoing challenge. Herein, a K 0.5 V 2 O 5 cathode has been designed and synthesized by intercalating of K + into V 2 O 5 , thus constructing a stable crystal structure by forming chemical bonds between V 2 O 5 layers. The successful intercalation of K + has been confirmed by a series of experimental tests and Vienna Ab-initio Simulation Package simulation. These layer-interlinking chemical bonds act as "pillars" to strongly hold the V 2 O 5 layers together and protect them from dissolution. Furthermore, the K 0.5 V 2 O 5 electrode also exhibits excellent durability (about 150 mA h g À 1 at 5 A g À 1 after 3000 cycles). More impressively, even after standing for three days in the solution of 3 M ZnSO 4 electrolyte, the K 0.5 V 2 O 5 electrode still maintains a high capacity of 92.2 mA h g À 1 after 150 cycles, demonstrating its outstanding stability and tolerance in such aqueous electrolyte.

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Section: Resultsmentioning

confidence: 65%

Pillaring Effect of K Ion Anchoring for Stable V₂O₅‐Based Zinc‐Ion Battery Cathodes

Zhang

Tao

et al. 2020

ChemNanoMat

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“…Figure c depicts the synthesized mechanism of Na 0.67 CoO 2 bundle arrays. Firstly, low crystalline Co(CO 3 ) 1‐x (OH) 2x ⋅nH 2 O arrays medium was derived through hydrothermal reaction based on the previous report . Followed by sodiation in NaOH solution and heat treatment in air, we ultimately obtained the desired Na 0.67 CoO 2 bundle array.…”

Section: Resultsmentioning

confidence: 99%

“…Building self‐supported cathode materials has been proved to be valid in enhancing cyclic stability and rate capability in LIBs. Lately, binder‐free LiCoO 2 , LiMn 2 O 4 and Li 4 Ti 5 O 12 arrays have been fabricated and directly utilized as high‐performance electrodes for LIBs . The cellular LiCoO 2 nanosheet arrays on Au‐coated stainless‐steel substrates showed a capacity of 104.6 mAh g −1 at 10 C, with a capacity retention of 81.8 % at 0.1 C undergoing 1000 cycles.…”

Section: Introductionmentioning

confidence: 99%

High Areal Capacity Na_0.67CoO₂ Bundle Array Cathode Tailored for High‐Performance Sodium‐Ion Batteries

et al. 2019

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Sodium-ion batteries are enjoying increasing attention as the most optimal alternative to lithium-ion batteries, due to their advantage of cost-effectiveness. As a typical cathode material for SIBs, layered Na x CoO 2 was introduced, demonstrating a satisfactory ion diffusion efficiency. Nevertheless, the mass loading of cathode materials in most of the literature is between 0.5 and 2.0 mg cm À 2 . In this regard, we introduce a facile "sodiation and calcination" method, to directly build selfsupported Na 0.67 CoO 2 bundle arrays on three-dimensional conductive Ni foam. By this fabrication pathway, the mass loading of Na x CoO 2 on Ni substrate can reach values as high as 10 mg cm À 2 . A high areal capacity of 1.66 mAh cm À 2 can be achieved based on a current rate of 0.33 C with a voltage window of 2.0-3.8 V (vs Na/Na + ). Intriguingly, this high mass loading Na 0.67 CoO2 cathode also performs with a satisfactory cyclic stability over 100 cycles at a current rate of 1.4 C, with a discharge capacity of 123.6 mAh g À 1 remaining without obvious capacity fading.

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“…For example, Xue et al have constructed a layered LiCoO 2 nanosheets anchored on nanorod arrays on carbon cloth substrate through a confined dissolution‐recrystallization process. The as‐prepared hierarchical LiCoO 2 arrays showed a high specific capacity (~130 mA h g −1 at 1 C) and excellent rate capability (81 mA h g −1 at 100 C) in saturated Li 2 SO 4 aqueous electrolyte (pH = 10) when employed as the cathode for aqueous Li‐ion batteries, which can be attributed to the greatly increased surface area and reduced ion diffusion length …”

Section: Applicationsmentioning

confidence: 99%

One‐dimensional and two‐dimensional synergized nanostructures for high‐performing energy storage and conversion

Wang

2019

InfoMat

247

142

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To address the worldwide energy challenges, advanced energy storage and conversion systems with high comprehensive performances, as the promising technologies, are inevitably required on a timely basis. The performance of these energy systems is intimately dependent on the properties of their electrodes. In addition to the electrode materials selection and their compositional optimization, materials fabrication with the designed nanostructure also provides significant benefits for their performances. In the past decade, considerable efforts have been made to promote the search for multidimensional nanostructures containing both onedimensional (1D) and two-dimensional (2D) nanostructures in synergy, namely, 1D-2D synergized nanostructures. By developing the freestanding electrodes with such unique nanoarchitectures, the structural features and electroactivities of each component can be manifested, where the synergistic properties among them can be simultaneously obtained for further enhanced properties, such as the increased number of active sites, fast electronic/ionic transport, and so forth. This review overviews the state-of-the-art on the 1D-2D synergized nanostructures, which can be broadly divided into three groups, namely, core/shell, cactus-like, and sandwich-like nanostructures. For each category, we introduce them from the aspects of structural features, fabrication methodologies to their successful applications in different types of energy storage/conversion devices, including rechargeable batteries, supercapacitors, water splitting, and so forth. Finally, the main challenges faced by and perspectives on the 1D-2D synergized nanostructures are discussed. K E Y W O R D S1D-2D synergized nanostructure, cactus-like nanostructure, core/shell nanostructure, energy storage/conversion, sandwich-like nanostructure

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3D LiCoO2 nanosheets assembled nanorod arrays via confined dissolution-recrystallization for advanced aqueous lithium-ion batteries

Cited by 94 publications

References 43 publications

Pillaring Effect of K Ion Anchoring for Stable V₂O₅‐Based Zinc‐Ion Battery Cathodes

Pillaring Effect of K Ion Anchoring for Stable V₂O₅‐Based Zinc‐Ion Battery Cathodes

High Areal Capacity Na_0.67CoO₂ Bundle Array Cathode Tailored for High‐Performance Sodium‐Ion Batteries

One‐dimensional and two‐dimensional synergized nanostructures for high‐performing energy storage and conversion

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3D LiCoO2 nanosheets assembled nanorod arrays via confined dissolution-recrystallization for advanced aqueous lithium-ion batteries

Cited by 94 publications

References 43 publications

Pillaring Effect of K Ion Anchoring for Stable V2O5‐Based Zinc‐Ion Battery Cathodes

Pillaring Effect of K Ion Anchoring for Stable V2O5‐Based Zinc‐Ion Battery Cathodes

High Areal Capacity Na0.67CoO2 Bundle Array Cathode Tailored for High‐Performance Sodium‐Ion Batteries

One‐dimensional and two‐dimensional synergized nanostructures for high‐performing energy storage and conversion

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Pillaring Effect of K Ion Anchoring for Stable V₂O₅‐Based Zinc‐Ion Battery Cathodes

Pillaring Effect of K Ion Anchoring for Stable V₂O₅‐Based Zinc‐Ion Battery Cathodes

High Areal Capacity Na_0.67CoO₂ Bundle Array Cathode Tailored for High‐Performance Sodium‐Ion Batteries