Flexible graphite film with laser drilling pores as novel integrated anode free of metal current collector for sodium ion battery

Han, Peng; Han, Xiaoqi; Yao, Jianhua; Liu, Zhihong; Cao, Xiaoyan; Cui, Guanglei

doi:10.1016/j.elecom.2015.10.009

Cited by 45 publications

(31 citation statements)

References 24 publications

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“…However, the capacity retention was only 70% after 250 cycles at 0.5 A g −1 , which may be attributed to the high cutoff voltage of 4.2 V inducing decomposition of the ether‐based electrolyte during charging. Other graphitic‐carbon‐based full cells, such as graphite//Al 2 O 3 @Na 3 V 2 (PO 4 ) 3 , porous graphite//Na 3 V 2 (PO 4 ) 3 , carbon nanotube@carbon black//Na 3.12 Fe 2.44 (P 2 O 7 ) 2 , and multiwalled carbon nanotube @graphite oxide nanoribbon//Na x MnO 2 have also been reported. However, none of these full cells exhibited output voltages above 3 V and a cyclic life beyond 1000 cycles, indicating that great efforts are needed to develop advanced Na‐ion full cells.…”

Section: Summary and Perspectivesmentioning

confidence: 99%

Graphitic Carbon Materials for Advanced Sodium‐Ion Batteries

et al. 2018

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Lithium‐ion batteries (LIBs) have dominated the energy storage market for more than two decades; however, the quest for lower‐cost battery alternatives is rapidly expanding, especially for large‐scale applications. Sodium‐ion batteries (SIBs) have recently experienced an impressive resurgence owing to the earth's abundance of sodium resources and the similar electrochemistry of SIBs and the well‐established LIBs. Nonetheless, whereas cost‐effective and reliable graphite anodes have served as a cornerstone in current LIB technology, one of the major limitations of SIBs has been the inability to exploit graphite as an electrode because of its negligible sodium storage capability. Recently, however, clear progress has been made in preparing high‐performance graphitic carbon anodes for SIBs with new findings on the mechanisms of sodium storage. Herein, this paper aims to review the progress made in understanding the sodium storage mechanisms in graphitic carbon materials and comprehensively summarize the start‐of‐the‐art achievements by surveying the correlations among the type of graphitic material, microstructure, sodium storage mechanisms, and electrochemical performance in SIBs. In addition, perspectives related to practical applications, including the electrolyte, coulombic efficiency, and applicability in sodium‐ion full cells, are also presented.

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Section: Summary and Perspectivesmentioning

confidence: 99%

Graphitic Carbon Materials for Advanced Sodium‐Ion Batteries

et al. 2018

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“…Flexible polyimide graphite films have a highly in‐plane ordered structure, which results in the enhanced electrical conductivity and excellent mechanical strength . A novel porous graphite film for an integrated anode through laser drilling technique has been reported . It displays moderate discharge capacity of 127 mAh g –1 with superior cycling stability for 1000 cycles.…”

Section: Non‐aqueous Anode‐based Sifcsmentioning

confidence: 99%

Emerging Prototype Sodium‐Ion Full Cells with Nanostructured Electrode Materials

Ren

Zhu

et al. 2017

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Due to steadily increasing energy consumption, the demand of renewable energy sources is more urgent than ever. Sodium-ion batteries (SIBs) have emerged as a cost-effective alternative because of the earth abundance of Na resources and their competitive electrochemical behaviors. Before practical application, it is essential to establish a bridge between the sodium half-cell and the commercial battery from a full cell perspective. An overview of the major challenges, most recent advances, and outlooks of non-aqueous and aqueous sodium-ion full cells (SIFCs) is presented. Considering the intimate relationship between SIFCs and electrode materials, including structure, composition and mutual matching principle, both the advance of various prototype SIFCs and the electrochemistry development of nanostructured electrode materials are reviewed. It is noted that a series of SIFCs combined with layered oxides and hard carbon are capable of providing a high specific gravimetric energy above 200 Wh kg , and an NaCrO //hard carbon full cell is able to deliver a high rate capability over 100 C. To achieve industrialization of SIBs, more systematic work should focus on electrode construction, component compatibility, and battery technologies.

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“…Moreover, the graphite anode provided superior cycle stability (more than 2500 repetitive electrochemical cycles), demonstrating the reversibility of the co‐intercalation chemistry despite the large volume expansion of ≈345% . Subsequent research conducted by Cui and co‐workers also demonstrated the practical feasibility of [sodium–ether] + complex ion intercalation in NIBs and sodium‐ion capacitors with good cycle stability …”

Section: Introductionmentioning

confidence: 99%

Exploiting Lithium–Ether Co‐Intercalation in Graphite for High‐Power Lithium‐Ion Batteries

Kim

Lim

Yoon

et al. 2017

Advanced Energy Materials

142

132

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The intercalation of lithium ions into graphite electrode is the key underlying mechanism of modern lithium‐ion batteries. However, co‐intercalation of lithium‐ions and solvent into graphite is considered undesirable because it can trigger the exfoliation of graphene layers and destroy the graphite crystal, resulting in poor cycle life. Here, it is demonstrated that the [lithium–solvent]+ intercalation does not necessarily cause exfoliation of the graphite electrode and can be remarkably reversible with appropriate solvent selection. First‐principles calculations suggest that the chemical compatibility of the graphite host and [lithium–solvent]+ complex ion strongly affects the reversibility of the co‐intercalation, and comparative experiments confirm this phenomenon. Moreover, it is revealed that [lithium–ether]+ co‐intercalation of natural graphite electrode enables much higher power capability than normal lithium intercalation, without the risk of lithium metal plating, with retention of ≈87% of the theoretical capacity at current density of 1 A g−1. This unusual high rate capability of the co‐intercalation is attributed to the (i) absence of the desolvation step, (ii) negligible formation of the solid–electrolyte interphase on graphite surface, and (iii) fast charge‐transfer kinetics. This work constitutes the first step toward the utilization of fast and reversible [lithium–solvent]+ complex ion intercalation chemistry in graphite for rechargeable battery technology.

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Flexible graphite film with laser drilling pores as novel integrated anode free of metal current collector for sodium ion battery

Cited by 45 publications

References 24 publications

Graphitic Carbon Materials for Advanced Sodium‐Ion Batteries

Graphitic Carbon Materials for Advanced Sodium‐Ion Batteries

Emerging Prototype Sodium‐Ion Full Cells with Nanostructured Electrode Materials

Exploiting Lithium–Ether Co‐Intercalation in Graphite for High‐Power Lithium‐Ion Batteries

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