A Foldable Lithium–Sulfur Battery

Lü, Li; Wu, Zi Ping; Sun, Hao; Chen, Deming; Gao, Jian; Suresh, Shravan; Chow, Philippe K.; Singh, Chandra Veer; Koratkar, Nikhil

doi:10.1021/acsnano.5b05068

Cited by 130 publications

(79 citation statements)

References 34 publications

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“…To the best of our knowledge, the cycling and rate performance of S@ HKUST-1/CNT electrode is the best performance among MOFs-based sulfur electrodes13141516171819 (Fig. 3e, Supplementary Table 1) and competitive to those of representative high-performance carbon-based sulfur electrodes5910111234353637383940414243444546474849505152535455 (Supplementary Table 2). The excellent performance is attributed to the following reasons.…”

Section: Discussionmentioning

confidence: 92%

Foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for lithium–sulfur batteries

et al. 2017

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Lithium–sulfur batteries are promising technologies for powering flexible devices due to their high energy density, low cost and environmental friendliness, when the insulating nature, shuttle effect and volume expansion of sulfur electrodes are well addressed. Here, we report a strategy of using foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for binder-free advanced lithium–sulfur batteries through a facile confinement conversion. The carbon nanotubes interpenetrate through the metal-organic frameworks crystal and interweave the electrode into a stratified structure to provide both conductivity and structural integrity, while the highly porous metal-organic frameworks endow the electrode with strong sulfur confinement to achieve good cyclability. These hierarchical porous interpenetrated three-dimensional conductive networks with well confined S8 lead to high sulfur loading and utilization, as well as high volumetric energy density.

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Section: Discussionmentioning

confidence: 92%

Foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for lithium–sulfur batteries

et al. 2017

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“…Li et al [ 227 ] used CNT fi lms as current collectors and deposited sulfur or lithium into the CNT fi lms in a checkerboard pattern. This checkerboard design enables S or Li does not form a continuous fi lm and the CNT region undergoes fold deformation,while not cracking S or Li materials.…”

Section: Reviewmentioning

confidence: 99%

Carbon Nanotubes and Graphene for Flexible Electrochemical Energy Storage: from Materials to Devices

2016

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Flexible electrochemical energy storage (FEES) devices have received great attention as a promising power source for the emerging field of flexible and wearable electronic devices. Carbon nanotubes (CNTs) and graphene have many excellent properties that make them ideally suited for use in FEES devices. A brief definition of FEES devices is provided, followed by a detailed overview of various structural models for achieving different FEES devices. The latest research developments on the use of CNTs and graphene in FEES devices are summarized. Finally, future prospects and important research directions in the areas of CNT- and graphene-based flexible electrode synthesis and device integration are discussed.

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“…[83] In energy storage devices, the concept of flexible substrates has been extended to other components, thereby propelling the development of flexible LIBs and SCs by utilizing flexible electrodes. For example, a large range of flexible carbonbased materials, such as CNT films, [16,[84][85][86][87][88][89] carbon non-woven fabric, [90] carbon nanofiber paper, [91,92] graphene or graphene oxide paper, [93][94][95][96] and graphene foam (GF), [97,98] have been widely used as current collectors in flexible power source devices. Compared with traditional metal foil current collectors, flexible carbon-based materials present excellent flexibility, high contact area, and strong adhesion to electrode materials.…”

Section: Flexible Substrates and Membranesmentioning

confidence: 99%

Mechanical Analyses and Structural Design Requirements for Flexible Energy Storage Devices

Mao

Meng

Ahmad

et al. 2017

Advanced Energy Materials

201

146

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degree of the entire electronic systems. In the integrated flexible electronic system, energy storage devices [14,[16][17][18][19][20] play important roles in connecting the preceding energy harvesting devices and the following energy utilization devices (Figure 1). Rechargeable secondary batteries and supercapacitors (SCs) are two typical energy storage devices. [21] Several excellent review papers [21][22][23][24][25][26] reported significant progresses achieved in flexible lithium-ion batteries (LIBs) and SCs by taking advantage of novel electrode materials, current collectors, and solid-state electrolytes. The application areas and lifetime of flexible power sources strongly depend on their mechanical deformation tolerance and the electrical property retention under deformation. Qualified flexible power sources should be able to endure high strain induced by external mechanical deformation, such as bending, compressing, stretching, folding, and twisting, while maintaining their electrochemical performance stability and structural integrity. Therefore, the mechanical reliability assessment and electrical property analysis of flexible devices need to be given much attention for future application.Tolerance in bending into a certain curvature is the major mechanical deformation characteristic of flexible energy storage devices. Thus far, several bending characterization parameters and various mechanical methods have been proposed to evaluate the quality and failure modes of the said devices by investigating their bending deformation status and received strain. Some of these mechanical metrologies were derived from the early research on flexible semiconductor devices of micro-electromechanical system (MEMS) [27,28] and TFTs. [29] However, comparing those numerous measurement data with one another is difficult because of the various theories and methods adopted by different research groups and the lack of unified assessment criteria. [26] The flexibility of flexible devices is generally realized not only by use of intuitive soft electrode materials but also by optimizing their mechanical structural design. [25] Detailed analysis on bending mechanics combining experimental and theoretical results provide not only reliable test methods to describe the bending state but also guidance for configuration design of devices against mechanical failure.The current review emphasizes on three main points: (1) key parameters that characterize the bending level of flexible energy storage devices, such as bending radius, bending Flexible energy storage devices with excellent mechanical deformation performance are highly required to improve the integration degree of flexible electronics. Unlike those of traditional power sources, the mechanical reliability of flexible energy storage devices, including electrical performance retention and deformation endurance, has received much attention. To provide the guideline for the construction design of devices, the strain distribution and failure modes in the entire architecture should b...

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A Foldable Lithium–Sulfur Battery

Cited by 130 publications

References 34 publications

Foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for lithium–sulfur batteries

Foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for lithium–sulfur batteries

Carbon Nanotubes and Graphene for Flexible Electrochemical Energy Storage: from Materials to Devices

Mechanical Analyses and Structural Design Requirements for Flexible Energy Storage Devices

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