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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Facile synthesis of porous Mn 2 O 3 /TiO 2 microspheres as anode materials for lithium-ion batteries with enhanced electrochemical performance
TL;DR: In this paper, a facile two-step hydrothermal method was used to obtain the porous Mn2O3/TiO2 microspheres via calcination and then the TiO2 layer was coated on the surface of the particles by a Hydrothermal-assisted liquid phase deposition (HA-LPD) method.
Journal ArticleDOI
Rationally designed hierarchical MnO2@NiO nanostructures for improved lithium ion storage
TL;DR: In this paper, a hierarchical MnO2@NiO core-shell nanostructure with a NiO nanorod as the core and NiO flakes as the shell has been synthesized by combining a hydrothermal treatment and an annealing process.
Journal ArticleDOI
Improved electrochemical performances derived from synergistic titanium dioxide and iron titanate porous nanohybrids serving as lithium-ion battery anodes
TL;DR: In this paper, the porous nanocomposites of TiO 2 with Fe 2 TiO 5 acting as anode materials for lithium-ion batteries (LIBs) are successfully fabricated via a solvothermal method followed by a sintering process.
Journal ArticleDOI
Synthesis of strontium hexaferrite nanoplates and the enhancement of their electrochemical performance by Zn2+ doping for high-rate and long-life lithium-ion batteries
TL;DR: Zn2+-doped strontium hexaferrite (SrFe12O19) nanoplates with diameters of ca 06-25 μm and thickness of 40-60 nm have been successfully synthesized by adjusting the Fe/Sr ratios via a solvothermal process followed by annealing as discussed by the authors.
Journal ArticleDOI
Carbon Nanotubes Coupled with Metal Ion Diffusion Layers Stabilize Oxide Conversion Reactions in High-Voltage Lithium-Ion Batteries.
Qian Li,Yingqiang Wu,Zhaomin Wang,Hai Ming,Wenxi Wang,Dongming Yin,Limin Wang,Husam N. Alshareef,Jun Ming +8 more
TL;DR: A novel dual metal (oxide) microsphere reinforced by vertically aligned carbon nanotubes (CNTs) and covered with a titanium oxide metal ion transfer diffusion layer is introduced to significantly improve the stability and Coulombic efficiency of metal ( oxide) anodes.
References
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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.