Journal ArticleDOI
Tin-Based Amorphous Oxide: A High-Capacity Lithium-Ion-Storage Material
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TLDR
A tin-based amorphous composite oxide (TCO) was synthesized in this paper to replace the carbon-based lithium intercalation materials currently in extensive use as the negative electrode (anode) of lithium-ion rechargeable batteries.Abstract:
A high-capacity lithium-storage material in metal-oxide form has been synthesized that can replace the carbon-based lithium intercalation materials currently in extensive use as the negative electrode (anode) of lithium-ion rechargeable batteries. This tin-based amorphous composite oxide (TCO) contains Sn(II)-O as the active center for lithium insertion and other glass-forming elements, which make up an oxide network. The TCO anode yields a specific capacity for reversible lithium adsorption more than 50 percent higher than those of the carbon families that persists after charge-discharge cycling when coupled with a lithium cobalt oxide cathode. Lithium-7 nuclear magnetic resonance measurements evidenced the high ionic state of lithium retained in the charged state, in which TCO accepted 8 moles of lithium ions per unit mole.read more
Citations
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Journal ArticleDOI
Two-Dimensional Carbon-Coated Graphene/Metal Oxide Hybrids for Enhanced Lithium Storage
Yuezeng Su,Shuang Li,Dongqing Wu,Fan Zhang,Hai-Wei Liang,Pengfei Gao,Chong Cheng,Xinliang Feng +7 more
TL;DR: This article presents a double protection strategy by fabricating a two-dimensional (2D) core-shell nanostructure to improve the electrochemical performance of metal oxides in lithium storage.
Journal ArticleDOI
Enhanced cycling performance of Fe3O4–graphene nanocomposite as an anode material for lithium-ion batteries
TL;DR: In this paper, the structure and morphology of the Fe 3 O 4 -graphene nanocomposite were characterized by X-ray diffraction, scanning electron microscopy and high-resolution transmission electron microscope, and the electrochemical performances were evaluated in coin-type cells.
Journal ArticleDOI
Building a Better Battery
TL;DR: An ingenious in situ transmission electron microscope experiment that uses a low–vapor pressure ionic liquid electrolyte to allow imaging of a SnO2 nanowire electrode in an “open” electrochemical cell raises the question of whether such one-dimensional phase transformations can be induced in other materials.
Journal ArticleDOI
Chemical approaches toward graphene-based nanomaterials and their applications in energy-related areas.
Bin Luo,Shaomin Liu,Linjie Zhi +2 more
TL;DR: This review gives a brief overview of the recent research concerning chemical and thermal approaches toward the production of well-defined graphene-based nanomaterials and their applications in energy-related areas, including solar cells, lithium ion secondary batteries, supercapacitors, and catalysis.
Journal ArticleDOI
Mesoporous and nanowire Co3O4 as negative electrodes for rechargeable lithium batteries
TL;DR: In contrast to mesoporous lithium intercalation compounds, which show superior capacity at high rates compared to bulk materials, mesoporosity does not seem to improve the capacity of conversion reactions on extended cycling.
References
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Journal ArticleDOI
Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries
TL;DR: LiMnO2 as discussed by the authors is a new material, which is structurally analogous to LiCoO2, which has been much studied as a positive electrode material for rechargeable lithium batteries.
Journal ArticleDOI
Studies of Lithium Intercalation into Carbons Using Nonaqueous Electrochemical Cells
TL;DR: In this paper, Li/graphite and Li/petroleum coke cells using a in a 50:50 mixture of propylene carbonate (PC) and ethylene carbonates (EC) electrolyte exhibit irreversible reactions only on the first discharge.
Journal ArticleDOI
Rechargeable Lithium Batteries with Aqueous Electrolytes
TL;DR: Rechargeable lithium-ion batteries that use an aqueous electrolyte have been developed and provide a fundamentally safe and cost-effective technology that can compete with nickelcadmium and lead-acid batteries on the basis of stored energy per unit of weight.
Journal ArticleDOI
A Mechanism of Lithium Storage in Disordered Carbons
TL;DR: High-resolution electron microscopy and lithium-7 nuclear magnetic resonance measurements suggest the existence of Li2 covalent molecules in the carbon material, which promises extraordinarily high energy density for secondary batteries.
Journal ArticleDOI
Solid State Electrodes for High Energy Batteries
D. W. Murphy,P. A. Christian +1 more
TL;DR: The physical and structural properties relevant to the ability of transition metal oxides with framework structures to topochemically incorporate lithium are discussed, and Perovskite-related structures are particularly attractive hosts for lithium.
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