Sodium-ion batteries: present and future
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TLDR
Current research on materials is summarized and discussed and future directions for SIBs are proposed to provide important insights into scientific and practical issues in the development of S IBs.Abstract:
Energy production and storage technologies have attracted a great deal of attention for day-to-day applications. In recent decades, advances in lithium-ion battery (LIB) technology have improved living conditions around the globe. LIBs are used in most mobile electronic devices as well as in zero-emission electronic vehicles. However, there are increasing concerns regarding load leveling of renewable energy sources and the smart grid as well as the sustainability of lithium sources due to their limited availability and consequent expected price increase. Therefore, whether LIBs alone can satisfy the rising demand for small- and/or mid-to-large-format energy storage applications remains unclear. To mitigate these issues, recent research has focused on alternative energy storage systems. Sodium-ion batteries (SIBs) are considered as the best candidate power sources because sodium is widely available and exhibits similar chemistry to that of LIBs; therefore, SIBs are promising next-generation alternatives. Recently, sodiated layer transition metal oxides, phosphates and organic compounds have been introduced as cathode materials for SIBs. Simultaneously, recent developments have been facilitated by the use of select carbonaceous materials, transition metal oxides (or sulfides), and intermetallic and organic compounds as anodes for SIBs. Apart from electrode materials, suitable electrolytes, additives, and binders are equally important for the development of practical SIBs. Despite developments in electrode materials and other components, there remain several challenges, including cell design and electrode balancing, in the application of sodium ion cells. In this article, we summarize and discuss current research on materials and propose future directions for SIBs. This will provide important insights into scientific and practical issues in the development of SIBs.read more
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Hierarchical nanocomposite of hollow carbon spheres encapsulating nano-MoO2 for high-rate and durable Li-ion storage
TL;DR: In this article, the authors report a unique hollow structure of carbon-encapsulated MoO2 nanospheres as a high-rate and durable anode material for Li-ion batteries.
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Micropores-in-macroporous gel polymer electrolytes for alkali metal batteries
TL;DR: In this article, a macroporous poly(vinylidene-fluoride-co-hexafluoropropylene) (PH) membrane is employed as a flexible three-dimensional polymeric host that can incorporate additional polymers.
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In situ synthesis of tin dioxide submicrorods anchored on nickel foam as an additive-free anode for high performance sodium-ion batteries.
TL;DR: The results demonstrate that the SnO2 submicrorods-Ni foam is a highly attractive anode for sodium ion batteries, which could exhibit much better sodium storage properties than the Sn O2 rod-assembly microspheres and other reported SnO 2-based additive electrodes.
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Sulfur-functionalized three-dimensional graphene monoliths as high-performance anodes for ultrafast sodium-ion storage
Dequn Zheng,Jun Zhang,Wei Lv,Tengfei Cao,Siwei Zhang,Dong Qiu,Ying Tao,Yan-Bing He,Feiyu Kang,Quan-Hong Yang,Quan-Hong Yang +10 more
TL;DR: Sulfur-functionalized graphene monoliths with a high sulfur fraction were prepared to demonstrate a high capacity and ultrafast sodium ion storage and the reversible reaction of -C-Sx-C- with sodium ions contributes to the extra capacity while a 3D graphene network guarantees high rate capability.
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Ce-MOF derived ceria: Insights into the Na-ion storage mechanism as a high-rate performance anode material
TL;DR: In this paper, the capacity contribution behavior, kinetics performance and Na-ion storage electrochemical reaction mechanism were investigated through cyclic voltammetry, electrochemical impedance and ex-situ X-ray diffraction/X-ray photoelectron spectroscopy analyses.
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