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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Synergistic effect of heat treatment and concentration of polydopamine enhance the electrochemical performances of hollow nitrogen-doped carbon microspheres
TL;DR: In this article, hollow nitrogen-doped carbon microspheres (HNCMs) have been synthesized with controlled shell thickness and high surface area by pyrolysis of polydopamine-coated polystyrene (PS@PDA) core-shell micros.
Journal ArticleDOI
Nitrogen/chlorine-doped carbon nanodisk-encapsulated hematite nanoparticles for high-performance lithium-ion storage
TL;DR: In this article, an efficient, facile, and potentially large-scale synthesis approach using the precursor of laminated iron oxychloride@polyaniline heterostructure and mild annealing is developed, yielding unique Fe2O3@carbon nanocomposites with hematite nanoparticles (∼20nm) that embedded in nitrogen/chlorine-doped carbon nanodisk (N/Cl-C).
Journal ArticleDOI
Hollow TiO2 as an Anode for Lithium Ion Batteries: Synthesis and In Situ Visualization of State of Charge
Xingkang Huang,Shumao Cui,Richard C. Wieboldt,Peter B. Hallac,Christopher R. Fell,Bernhard M. Metz,Junwei Jiang,Junhong Chen +7 more
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Gradient electrospinning and controlled pyrolysis derived FexOy@N-doped carbon nanorods towards enhanced lithium storage
Cong Wu,Liyuan Ao,Shenyu Du,Kai Jiang,Jinzhong Zhang,Liyan Shang,Yawei Li,Zhigao Hu,Zhigao Hu,Zhigao Hu,Junhao Chu,Junhao Chu,Junhao Chu +12 more
TL;DR: In this paper, a carbon-based anode material, consisting of ultra-fine hollow FexOy nanoparticles (NPs) uniformly anchored on the porous N-doped carbon nanorods, has been fabricated via electrospinning technique combined with controlled pyrolysis.
Journal ArticleDOI
Scraps to superior anodes for Li-ion batteries: Sustainable and scalable upgrading of waste rust
Tejaswi Tanaji Salunkhe,Rajender S. Varma,Abhijit N. Kadam,Sang-Wha Lee,Young-Chul Lee,Jaehyun Hur,Il Tae Kim +6 more
TL;DR: The high-energy ball milling (HEBM) process represents a novel route for the scalable recycling of iron rust scraps for promoting the sustainable production of lithium-ion batteries.
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.