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Journal ArticleDOI

A high-performance sodium-ion battery enhanced by macadamia shell derived hard carbon anode

TL;DR: In this paper, the authors introduce a sodium-matched SIB full-cell architecture, with newly developed hard carbon derived from macadamia shell (MHC) as anode and Na [ Cu 1 / 9 Ni 2 / 9 Fe 1 / 3 Mn 1/3 ] O 2 (NCNFM) as the cathode material, with anode/cathode areal capacity ratio of 1.02-1.04.
About: This article is published in Nano Energy.The article was published on 2017-09-01. It has received 157 citations till now. The article focuses on the topics: Anode & Sodium-ion battery.
Citations
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Journal ArticleDOI
TL;DR: An overview of Na-ion SSEs is first outlined according to the classification of solid polymer electrolytes, composite polymer electrolyte, inorganic solid electrolytes and the current challenges and critical perspectives for the potential development of solid-state sodium batteries are discussed in detail as mentioned in this paper.
Abstract: Rechargeable Na-ion batteries (NIBs) are attractive large-scale energy storage systems compared to Li-ion batteries due to the substantial reserve and low cost of sodium resources. The recent rapid development of NIBs will no doubt accelerate the commercialization process. As one of the indispensable components in current battery systems, organic liquid electrolytes are widely used for their high ionic conductivity and good wettability, but the low thermal stability, especially the easy flammability and leakage make them at risk of safety issues. The booming solid-state batteries with solid-state electrolytes (SSEs) show promise as alternatives to organic liquid systems due to their improved safety and higher energy density. However, several challenges including low ionic conductivity, poor wettability, low stability/incompatibility between electrodes and electrolytes, etc., may degrade performance, hindering the development of practical applications. In this review, an overview of Na-ion SSEs is first outlined according to the classification of solid polymer electrolytes, composite polymer electrolytes, inorganic solid electrolytes, etc. Furthermore, the current challenges and critical perspectives for the potential development of solid-state sodium batteries are discussed in detail.

400 citations

Journal ArticleDOI
TL;DR: An overview of the fundamental understandings of solid electrolyte interphase (SEI) formation, conceptual models, and advanced real-time characterizations of LMI are presented and practical challenges in competing with graphite and silicon anodes are outlined.
Abstract: Lithium metal anodes are potentially key for next-generation energy-dense batteries because of the extremely high capacity and the ultralow redox potential. However, notorious safety concerns of Li metal in liquid electrolytes have significantly retarded its commercialization: on one hand, lithium metal morphological instabilities (LMI) can cause cell shorting and even explosion; on the other hand, breaking of the grown Li arms induces the so-called "dead Li"; furthermore, the continuous consumption of the liquid electrolyte and cycleable lithium also shortens cell life. The research community has been seeking new strategies to protect Li metal anodes and significant progress has been made in the last decade. Here, an overview of the fundamental understandings of solid electrolyte interphase (SEI) formation, conceptual models, and advanced real-time characterizations of LMI are presented. Instructed by the conceptual models, strategies including increasing the donatable fluorine concentration (DFC) in liquid to enrich LiF component in SEI, increasing salt concentration (ionic strength) and sacrificial electrolyte additives, building artificial SEI to boost self-healing of natural SEI, and 3D electrode frameworks to reduce current density and delay Sand's extinction are summarized. Practical challenges in competing with graphite and silicon anodes are outlined.

328 citations

Journal ArticleDOI
TL;DR: In this paper, the authors compared Na and Li batteries in terms of fundamental principles and specific materials, and assessed the performance of commercial prototype sodium cells, and concluded that Na cells offer realistic alternatives that are competitive with some Li cells.
Abstract: Na-based batteries have shown substantial progress in recent years and are promising candidates for mitigating the supply risks associated with Li-based batteries. In this Review, Na and Li batteries are compared in terms of fundamental principles and specific materials. Principles for the rational design of a Na battery architecture are discussed. Recent prototypes are surveyed to demonstrate that Na cells offer realistic alternatives that are competitive with some Li cells in terms of performance. Sodium batteries are promising candidates for mitigating the supply risks associated with lithium batteries. This Review compares the two technologies in terms of fundamental principles and specific materials, and assesses the performance of commercial prototype sodium cells.

294 citations

Journal ArticleDOI
TL;DR: Hirsh, Hayley S; Li, Yixuan; Tan, Darren HS; Zhang, Minghao; Zhao, Enyue; Meng, Y Shirley as discussed by the authors.
Abstract: Author(s): Hirsh, Hayley S; Li, Yixuan; Tan, Darren HS; Zhang, Minghao; Zhao, Enyue; Meng, Y Shirley

245 citations

References
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Journal ArticleDOI
06 Feb 2008-Nature
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.
Abstract: Researchers must find a sustainable way of providing the power our modern lifestyles demand.

15,980 citations


"A high-performance sodium-ion batte..." refers background in this paper

  • ...Lithium-ion batteries (LIB) are commercially successful due to high voltage, high cell-level energy density and long cycle life [1,2]....

    [...]

Journal ArticleDOI
TL;DR: Hollow carbon nanowires prepared through pyrolyzation of a hollow polyaniline nanowire precursor deliver high reversible capacity and excellent cycling stability and the good Na-ion insertion property is attributed to the short diffusion distance in the HCNWs and the large interlayer distance.
Abstract: Hollow carbon nanowires (HCNWs) were prepared through pyrolyzation of a hollow polyaniline nanowire precursor. The HCNWs used as anode material for Na-ion batteries deliver a high reversible capacity of 251 mAh g–1 and 82.2% capacity retention over 400 charge–discharge cycles between 1.2 and 0.01 V (vs Na+/Na) at a constant current of 50 mA g–1 (0.2 C). Excellent cycling stability is also observed at an even higher charge–discharge rate. A high reversible capacity of 149 mAh g–1 also can be obtained at a current rate of 500 mA g–1 (2C). The good Na-ion insertion property is attributed to the short diffusion distance in the HCNWs and the large interlayer distance (0.37 nm) between the graphitic sheets, which agrees with the interlayered distance predicted by theoretical calculations to enable Na-ion insertion in carbon materials.

1,469 citations

Journal ArticleDOI
TL;DR: Expanded graphite is reported as a Na-ion battery anode, prepared through a process of oxidation and partial reduction on graphite, which has an enlarged interlayer lattice distance yet retains an analogous long-range-ordered layered structure to graphite.
Abstract: Graphite, as the most common anode for commercial Li-ion batteries, has been reported to have a very low capacity when used as a Na-ion battery anode. It is well known that electrochemical insertion of Na(+) into graphite is significantly hindered by the insufficient interlayer spacing. Here we report expanded graphite as a Na-ion battery anode. Prepared through a process of oxidation and partial reduction on graphite, expanded graphite has an enlarged interlayer lattice distance of 4.3 A yet retains an analogous long-range-ordered layered structure to graphite. In situ transmission electron microscopy has demonstrated that the Na-ion can be reversibly inserted into and extracted from expanded graphite. Galvanostatic studies show that expanded graphite can deliver a high reversible capacity of 284 mAh g(-1) at a current density of 20 mA g(-1), maintain a capacity of 184 mAh g(-1) at 100 mA g(-1), and retain 73.92% of its capacity after 2,000 cycles.

1,432 citations

Journal ArticleDOI
TL;DR: In this article, the authors compare the results with those for lithium insertion in graphitic carbon anode materials and demonstrate the presence of similar alkali metal insertion mechanisms in both cases.
Abstract: Electrochemical techniques have been used to study the reversible insertion of sodium into hard‐carbon host structures at room temperature. In this paper we compare these results with those for lithium insertion in the same materials and demonstrate the presence of similar alkali metal insertion mechanisms in both cases. Despite the gravimetric capacities being lower for sodium than lithium insertion, we have achieved a reversible sodium capacity of 300 mAh/g, close to that for lithium insertion in graphitic carbon anode materials. Such materials may therefore be useful as anodes in rechargeable sodium‐ion batteries. © 2000 The Electrochemical Society. All rights reserved.

1,297 citations