Synergistic nanostructure and heterointerface design propelled ultra-efficient in-situ self-transformation of zinc-ion battery cathodes with favorable kinetics

Luo, Hao; Wang, Bo; Wu, F. F.; Jian, Jiahuang; Yang, Kai; Jin, Fan; Cong, Bowen; Ning, Yu; Zhou, Yu; Wang, Dianlong; Liu, Huan; Dou, Shi Xue

doi:10.1016/j.nanoen.2020.105601

Cited by 141 publications

(82 citation statements)

References 54 publications

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“…To overcome the aforementioned problems and enhance the zinc‐ion storage performance of vanadium oxide‐based cathode materials, two strategies have been mainly adopted: 1) compositing cathode materials with highly conductive carbon materials, and 2) robust architecture design of hollow and/or porous intercalation hosts. [ 30–34 ] The former strategy enables the fast migration of zinc‐ions along the carbonaceous network and the alleviation of volume changes during cycling. [ 30,31 ] Wang et al.…”

Section: Introductionmentioning

confidence: 99%

“…The second strategy, that is, the design of nanostructures, has numerous advantages, including volume change alleviation during the charge and discharge processes. [ 32–34 ] Cao et al. reported on the zinc‐ion storage performance of ancient Chinese coin‐shaped VO 2 nanoplates using dissolution and regrowth processes guided by the localized Ostwald ripening process.…”

Section: Introductionmentioning

confidence: 99%

“…A significant improvement in the electrochemical performance of the cathodes for ZIBs has been achieved by adopting these strategies. [ 30–34 ] However, to the best of our knowledge, the effect of nanostructures and conductive carbon materials on ZIBs has not been systemically investigated because of the difficulties in synthesizing porous and/or hollow vanadium oxide materials composited with conductive carbon.…”

Section: Introductionmentioning

confidence: 99%

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Boosting the Electrochemical Performance of V₂O₃ by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

2021

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Zinc‐ion batteries (ZIBs) are next‐generation energy storage systems with high safety and environmental friendliness because they can be operated in aqueous systems. However, the search for electrode materials with ideal nanostructures and compositions for aqueous ZIBs is in progress. Herein, the synthesis of porous microspheres, consisting of V2O3 anchored on entangled carbon nanotubes (p‐V2O3‐CNT) and their application as cathode for ZIBs is reported. From various analyses, it is revealed that V2O3 phase disappears after the initial charge process, and Zn3+x(OH)2+3xV2−xO7−3x∙2H2O and zinc vanadate (ZnyVOz) phases undergo zinc‐ion intercalation/deintercalation processes from the second cycle. Additionally, the electrochemical performances of p‐V2O3‐CNT, V2O3‐CNT (without macrovoids), and porous V2O3 (without CNTs) microspheres are compared to determine the effects of nanostructures and conductive carbonaceous matrix on the zinc‐ion storage performance. p‐V2O3‐CNT exhibits a high reversible capacity of 237 mA h g−1 after 5000 cycles at 10 A g−1. Furthermore, a reversible capacity of 211 mA h g−1 is obtained at an extremely high current density of 50 A g−1. The macrovoids in V2O3 nanostructure effectively alleviate the volume changes during cycling, and the entangled CNTs with high electrical conductivity assist in achieving fast electrochemical kinetics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Boosting the Electrochemical Performance of V₂O₃ by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

2021

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“…4e). [26][27][28][29][30][31][32][33][34] These results demonstrate the satisfying ability of this combination of PC matrix and VO 2 crystal in the storage of Zn 2+ ion, which suggests that the VO 2 -PC would hold promising performance to ful ll the requirements of Zn-based systems for low-grade heat conversion.…”

Section: Resultsmentioning

confidence: 63%

Zinc Ion Thermogalvanic Cell: A New Strategy for Low-Grade Heat Conversion and Energy Storage

Li¹,

Xu²,

Wu³

et al. 2021

Preprint

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Converting low-grade heat from environment into electricity shows great sustainability for mitigating the energy crisis and adjusting energy configuration. However, the thermally rechargeable devices suffer from poor Seebeck coefficient when a semiconductor or ionic electrolyte is typically employed. Breaking the convention of thermoelectric systems, we propose and demonstrate a new zinc ion thermogalvanic cell to generate electricity from low-grade heat via the thermo-extraction/insertion and thermodiffusion process of insertion-type cathode (VO2-PC) and stripping/plating behavior of Zn anode. Based on this strategy, a high thermopower of ~ 15 mV k− 1 and an excellent output power of 1.2 mW can be impressively obtained. Besides, a high specific capacity and a superior durability are originated from coupling of VO2-PC and Zn. This work with extraordinary energy conversion efficiency and satisfying energy storage capability will pave the way toward construction of thermoelectric setups with attractive property for high value-added utilization of low-grade heat.

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“…3i CNTs. 40,41 Fig. 4c shows the O 1s peak at 531.9 eV for Co 2 GeO 4 , Co 2 GeO 4 /rGO, and Co 2 GeO 4 /MWCNTs, which is attributed to the metal oxide bond.…”

Section: Resultsmentioning

confidence: 99%

Co₂GeO₄ nanocomposites with reduced graphene oxide and carbon nanotubes as high-performance anodes for Na-ion batteries

et al. 2021

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Synergistic nanostructure and heterointerface design propelled ultra-efficient in-situ self-transformation of zinc-ion battery cathodes with favorable kinetics

Cited by 141 publications

References 54 publications

Boosting the Electrochemical Performance of V₂O₃ by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

Boosting the Electrochemical Performance of V₂O₃ by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

Zinc Ion Thermogalvanic Cell: A New Strategy for Low-Grade Heat Conversion and Energy Storage

Co₂GeO₄ nanocomposites with reduced graphene oxide and carbon nanotubes as high-performance anodes for Na-ion batteries

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Synergistic nanostructure and heterointerface design propelled ultra-efficient in-situ self-transformation of zinc-ion battery cathodes with favorable kinetics

Cited by 141 publications

References 54 publications

Boosting the Electrochemical Performance of V2O3 by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

Boosting the Electrochemical Performance of V2O3 by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

Zinc Ion Thermogalvanic Cell: A New Strategy for Low-Grade Heat Conversion and Energy Storage

Co2GeO4 nanocomposites with reduced graphene oxide and carbon nanotubes as high-performance anodes for Na-ion batteries

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Product

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Boosting the Electrochemical Performance of V₂O₃ by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

Boosting the Electrochemical Performance of V₂O₃ by Anchoring on Carbon Nanotube Microspheres with Macrovoids for Ultrafast and Long‐Life Aqueous Zinc‐Ion Batteries

Co₂GeO₄ nanocomposites with reduced graphene oxide and carbon nanotubes as high-performance anodes for Na-ion batteries