Rational design of walnut-like ZnO/Co<sub>3</sub>O<sub>4</sub> porous nanospheres with substantially enhanced lithium storage performance

Zhang, Yifan; Zhang, Yamin; Aldama, Edgar; Liu, Huitian; Sun, Zhijian; Ma, Yao; Liu, Nian; Zhang, Z John

doi:10.1039/d1nr07890a

Cited by 9 publications

(4 citation statements)

References 45 publications

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“…The semicircle in the highand medium-frequency regions is related to the SEI film and charge-transfer resistances (R sf+ct ), and the inclined line in the low-frequency region corresponds to the Warburg impedance (Z w ) that is ascribed to Li + diffusion within the electrodes. 47 In addition, the intercept on the real axis at high frequency may be assigned to the electrolyte and electrode resistances (R e ). CPE1 is a constant-phase element representing capacitance.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

High-Performance Anode Material Based on Zinc Naphthalocyanine/Graphene Composite

Lv,

Li,

et al. 2024

Langmuir

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Transition metal oxides are a potential anode material owing to their high theoretical capacity. Nonetheless, their large volume changes and low electrical conductivities lead to poor cycling performance and rate capabilities. In this article, an effective strategy is proposed and developed for preparing a ZnO/N-doped graphene composite (ZnNc/GO-5). The key point of this strategy is to use zinc tetra tert-butyl-naphthalocyanine (ZnNc) as a codoped source of N atoms and zinc ions, and graphene oxide (GO) which is combined with ZnNc by π–π deposition as a carbon matrix. After calcination, ZnO microcrystals coated with N-doped graphene are obtained. The unique features of the composite and synergistic effect between N-doped reduced graphene oxide and ZnO microcrystals enable good electrochemical performance by the composites when used in lithium-ion batteries. As an anode material, the as-synthesized ZnNc/GO-5 composite delivers a high first capacity of 1942.9 mAh g–1 and excellent cyclic stability of 861.4 mAh g–1 after 150 cycles at 100 mA g–1. This strategy may offer a new method of designing the anode materials of lithium-ion batteries and promote the practical use of organic molecules in next-generation lithium-ion batteries.

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Section: ■ Experimental Sectionmentioning

confidence: 99%

High-Performance Anode Material Based on Zinc Naphthalocyanine/Graphene Composite

Lv,

Li,

et al. 2024

Langmuir

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“…In order to improve the fast-charging performance, some novel anode materials such as metal oxides(flaky �-Fe 2 O 3 , [99][100][101] Co 3 O 4 , [102,103] CoFe 2 O 4 , [104] Nb 2 O 5 nanoparticles [105] ), MXene, [106,107] Si nanofibers, [108] Sn nanoparticles, [109] and Ge nanoparticles [110] have been developed. M. T. Sougrati et al [111,112] studied the electrical properties of TiSnSb anode material which showed a reversible capacity of 540 mAh g À 1 .…”

Section: Other Novel Anode Materialsmentioning

confidence: 99%

A Review on Electrode Materials of Fast‐Charging Lithium‐Ion Batteries

Zhang

Zhao

et al. 2022

The Chemical Record

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In recent years, the driving range of electric vehicles (EVs) has been dramatically improved. But the large‐scale adoption of EVs still is hindered by long charging time. The high‐energy LIBs are unable to be safely fast‐charged due to their electrode materials with unsatisfactory rate performance. Thus it is necessary to summarize the properties of cathode and anode materials of fast‐charging LIBs. In this review, we summarize the background, the fundamentals, electrode materials and future development of fast‐charging LIBs. First, we introduce the research background and the physicochemical basics for fast‐charging LIBs. Second, typical cathode materials of LIBs and the method to enhancing their fast‐charging properties are discussed. Third, the anode materials of LIBs and the strategies for improving their fast‐charging performance are analyzed. Finally, the future development of the cathode materials in fast‐charging LIBs is prospected.

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“…With increasing demand for high specific capacity LIB in electric vehicles and portable electronic devices, traditional graphite anode materials no longer satisfy the requirements of future LIB development due to their low specific capacity (~372 mAh g −1 ). [ 1–3 ] Transition metal oxide anode materials have attracted broad attention due to their high‐energy density, high‐power density, and prominent cycling stability. ZnO has higher theoretical capacity (978 mAh g −1 ) and larger lithium‐ion diffusion coefficient compared to other transition metal oxides, and so has been widely investigated as a LIB anode material.…”

Section: Introductionmentioning

confidence: 99%

Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium‐Ion Batteries

Xiao

Zhou

et al. 2023

Energy & Environ Materials

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Low electronic conductivity and large volume changes during the (de)lithiation process are the two main challenges for ZnO anode materials used for lithium‐ion batteries (LIB). Here, a free‐standing, flexible, and binder‐free LIB electrode composed of ZnO nanorods and carbon cloth (CC) is fabricated. This is then decorated with Ag nanoparticles and finally coated by an amorphous carbon layer to form the hybrid electrode: (C@(Ag&ZnO)). The voids among the nanorods are sufficient to accommodate the volume expansion of the ZnO while the flexible CC, which acts as the current collector, relieves the volume change‐induced stress. The Ag nanoparticles are effective in improving the conductivity. This composite electrode shows excellent LIB performance with a stable long cycling life over 500 cycles with a reversible capacity of 1093 mAh g−1 at a current density of 200 mA g−1. It also shows good rate performance with reversible capacity of 517 mAh g−1 under a high‐current density of 5000 mA g−1. In situ Raman spectroscopy is conducted to investigate the contributions of the amorphous carbon layer to the capacity of the whole electrode and the synergy between the CC and ZnO nanorods.

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Rational design of walnut-like ZnO/Co₃O₄ porous nanospheres with substantially enhanced lithium storage performance

Abstract: Rational fabrication and smart design of multi-component anode materials to achieve desirable reversible capacities and exceptional cyclability are significant for lithium-ion batteries (LIBs). Herein, walnut-like ZnO/Co3O4 porous nanospheres were prepared...

Cited by 9 publications

References 45 publications

High-Performance Anode Material Based on Zinc Naphthalocyanine/Graphene Composite

High-Performance Anode Material Based on Zinc Naphthalocyanine/Graphene Composite

A Review on Electrode Materials of Fast‐Charging Lithium‐Ion Batteries

Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium‐Ion Batteries

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Rational design of walnut-like ZnO/Co3O4 porous nanospheres with substantially enhanced lithium storage performance

Abstract: Rational fabrication and smart design of multi-component anode materials to achieve desirable reversible capacities and exceptional cyclability are significant for lithium-ion batteries (LIBs). Herein, walnut-like ZnO/Co3O4 porous nanospheres were prepared...

Cited by 9 publications

References 45 publications

High-Performance Anode Material Based on Zinc Naphthalocyanine/Graphene Composite

High-Performance Anode Material Based on Zinc Naphthalocyanine/Graphene Composite

A Review on Electrode Materials of Fast‐Charging Lithium‐Ion Batteries

Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium‐Ion Batteries

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Rational design of walnut-like ZnO/Co₃O₄ porous nanospheres with substantially enhanced lithium storage performance