Binder‐Free LiCoO<sub>2</sub>/Carbon Nanotube Cathodes for High‐Performance Lithium Ion Batteries

Luo, Shu; Wang, Ke; Wang, Jiaping; Jiang, Kaili; Li, Qunqing; Fan, Shanhui

doi:10.1002/adma.201104720

Cited by 281 publications

(185 citation statements)

References 33 publications

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“…Conductivity loss usually results in a sharp decay during electrochemical process. [ 128 ] To protect fl exible electrodes from this, application of "self-healing" polymers is an outstanding example. Self-healing polymers are a class of smart materials that have structurally incorporated ability to repair damage caused by mechanical damage over time, which has been used for electrical conductors and electronic skins with improved durability.…”

Section: Reviewmentioning

confidence: 99%

“…[ 127 ] Compared with metal current collectors, better wetting (Figure 15 b), stronger adhesion, greater mechanical durability, and lower contact resistance were demonstrated. [127][128][129] Gwon et al [ 130 ] used graphene fi lms as a current collector in fl exible LIBs. A V 2 O 5 cathode was grown on the surface of the graphene.…”

Section: Flexible Current Collectorsmentioning

confidence: 99%

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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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Section: Reviewmentioning

confidence: 99%

Section: Flexible Current Collectorsmentioning

confidence: 99%

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

2016

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“…While there has been a distinct move for alternative electrode hosts (LiCoO2 is both toxic and relatively expensive to produce), research has still considered a number of practical LiCoO2 architectures with high voltage and good rate performance [249][250][251][252][253][254][255][256][257]. In the interest of capacity retention, commercial LiCoO2 cells typically adopt a reversible capacity to 0.5 Li + by setting the upper-cut off potential to 4.2 V, thus yielding working capacities approaching 150 mA h g -1 [258].…”

Section: Licoo2mentioning

confidence: 99%

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

et al. 2013

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Access to the full text of the published version may require a subscription. Rights © Tsinghua University Press and Springer-Verlag Berlin ABSTRACTThe performance of the lithium-ion cell is heavily dependent on the ability of the host electrodes to accommodate and release Li + ions from the local structure. While the choice of electrode materials may define parameters such as cell potential and capacity, the process of intercalation may be physically limited by the rate of solid-state Li + diffusion. Increased diffusion rates in lithium-ion electrodes may be achieved through a reduction in the diffusion path, accomplished by a scaling of the respective electrode dimensions.In addition, some electrodes may undergo large volume changes associated with charging and discharging, the strain of which, may be better accommodated through nanostructuring. Failure of the host to accommodate such volume changes may lead to pulverisation of the local structure and a rapid loss of capacity. In this review article, we seek to highlight a number of significant gains in the development of nanostructured lithium-ion battery architectures (both anode and cathode), as drivers of potential next-generation electrochemical energy storage devices.

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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

193

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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Binder‐Free LiCoO₂/Carbon Nanotube Cathodes for High‐Performance Lithium Ion Batteries

Cited by 281 publications

References 33 publications

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

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

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Mechanical Analyses and Structural Design Requirements for Flexible Energy Storage Devices

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Binder‐Free LiCoO2/Carbon Nanotube Cathodes for High‐Performance Lithium Ion Batteries

Cited by 281 publications

References 33 publications

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

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

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Mechanical Analyses and Structural Design Requirements for Flexible Energy Storage Devices

Contact Info

Product

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Binder‐Free LiCoO₂/Carbon Nanotube Cathodes for High‐Performance Lithium Ion Batteries