Journal ArticleDOI
Rationally Designed Hierarchical TiO2@Fe2O3 Hollow Nanostructures for Improved Lithium Ion Storage
Jingshan Luo,Xinhui Xia,Yongsong Luo,Cao Guan,Jilei Liu,Xiaoying Qi,Chin Fan Ng,Ting Yu,Hua Zhang,Hong Jin Fan +9 more
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TLDR
In this paper, an atomic layer deposition (ALD) and sacrificial template-assisted hydrolysis were used to construct a hierarchical hollow TiO2@Fe2O3 nanostructures for the application of lithium ion battery.Abstract:
Hollow and hierarchical nanostructures have received wide attention in new-generation, high-performance, lithium ion battery (LIB) applications. Both TiO2 and Fe2O3 are under current investigation because of their high structural stability (TiO2) and high capacity (Fe2O3), and their low cost. Here, we demonstrate a simple strategy for the fabrication of hierarchical hollow TiO2@Fe2O3 nanostructures for the application as LIB anodes. Using atomic layer deposition (ALD) and sacrificial template-assisted hydrolysis, the resulting nanostructure combines a large surface area with a hollow interior and robust structure. As a result, such rationally designed LIB anodes exhibit a high reversible capacity (initial value 840 mAh g−1), improved cycle stability (530 mAh g−1 after 200 cycles at the current density of 200 mA g−1), as well as outstanding rate capability. This ALD-assisted fabrication strategy can be extended to other hierarchical hollow metal oxide nanostructures for favorable applications in electrochemical and optoelectronic devices.read more
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Mn3O4@C core–shell composites as an improved anode for advanced lithium ion batteries
TL;DR: In this article, the Mn3O4@C core-shell nanorods were prepared using the synchronous reduction and decomposition of acetylene, and the resulting nanorod possess a one dimensional shape, porous structure and uniform carbon layer (∼3 nm), which result in electrochemical stability.
Journal ArticleDOI
Micro/Nanoengineered α‐Fe2O3 Nanoaggregate Conformably Enclosed by Ultrathin N‐Doped Carbon Shell for Ultrastable Lithium Storage and Insight into Phase Evolution Mechanism
Dan Xie,Huan-Huan Li,Yan-Hong Shi,Wan-Yue Diao,Ru Jiang,Haizhu Sun,Xing-Long Wu,Wenliang Li,Chao-Ying Fan,Jingping Zhang +9 more
TL;DR: It is verified that the reversible phase transformation of α ↔ γ occurs during the first cycle while only α-Fe2O3 phase is reversibly transformed during subsequent cycles, and this study offers a simple and scalable strategy for the practical application of high-performance Fe 2O3 electrode.
Journal ArticleDOI
GeTe-TiC-C Composite Anodes for Li-Ion Storage.
TL;DR: The developed GeTe-TiC-C anodes are promising for potential applications as anode candidates for high-performance lithium-ion batteries.
Journal ArticleDOI
Constructing non-hierarchical heterostructure Fe2O3/Fe2F5 porous spheres via precursor self-adsorbed fluoride ions for enhanced lithium- ion storage
TL;DR: In this paper, non-hierarchical heterostructure Fe2O3/Fe2F5 porous spheres (NHFs) are designed and successfully prepared by the simultaneously adsorption of fluoride ions during the formation of the precursor with a facile one-pot self-assembly approach.
Journal ArticleDOI
NaFeTiO4 nanorod/multi-walled carbon nanotubes composite as an anode material for sodium-ion batteries with high performances in both half and full cells
TL;DR: In this article, the NaFeTiO4/MWCNTs/Na3V2(PO4)3/C full cell was assembled for the first time; it displays a discharge capacity of 70 mA·h·g−1 after 50 cycles at 0.05 C, indicating its excellent performances.
References
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Journal ArticleDOI
Issues and challenges facing rechargeable lithium batteries
TL;DR: A brief historical review of the development of lithium-based rechargeable batteries is presented, ongoing research strategies are highlighted, and the challenges that remain regarding the synthesis, characterization, electrochemical performance and safety of these systems are discussed.
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Building better batteries
TL;DR: Researchers must find a sustainable way of providing the power their modern lifestyles demand to ensure the continued existence of clean energy sources.
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Electrical Energy Storage for the Grid: A Battery of Choices
TL;DR: The battery systems reviewed here include sodium-sulfur batteries that are commercially available for grid applications, redox-flow batteries that offer low cost, and lithium-ion batteries whose development for commercial electronics and electric vehicles is being applied to grid storage.
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Nanostructured materials for advanced energy conversion and storage devices
Antonino S. Aricò,Peter G. Bruce,Bruno Scrosati,Jean-Marie Tarascon,Jean-Marie Tarascon,Walter van Schalkwijk +5 more
TL;DR: This review describes some recent developments in the discovery of nanoelectrolytes and nanoeLECTrodes for lithium batteries, fuel cells and supercapacitors and the advantages and disadvantages of the nanoscale in materials design for such devices.
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Nano-sized transition-metal oxides as negative-electrode materials for lithium-ion batteries
TL;DR: It is reported that electrodes made of nanoparticles of transition-metal oxides (MO), where M is Co, Ni, Cu or Fe, demonstrate electrochemical capacities of 700 mA h g-1, with 100% capacity retention for up to 100 cycles and high recharging rates.