A Tunable 3D Nanostructured Conductive Gel Framework Electrode for High‐Performance Lithium Ion Batteries

Shi, Yijiang; Zhang, Jun; Bruck, Andrea M.; Zhang, Yiman; Li, Jing; Stach, Eric A.; Takeuchi, Kenneth J.; Marschilok, Amy C.; Takeuchi, Esther S.; Yu, Guihua

doi:10.1002/adma.201603922

Cited by 191 publications

(145 citation statements)

References 46 publications

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“…The GDY1and GDY2achieve the stable capacities of 513 and 1043 mA hg À1 at 5Ag À1 ,r espectively.T hereafter, both exhibited robust capacity retentions even after 500 cycles.I mpressively,G DY 2d isplays reversible capacities of 850 mA hg À1 at 10 Ag À1 and 449.8 mA hg À1 at 20 Ag À1 . According to the superiorities of GDYn anosheets revealed here, Figure 5e is illustrated for the overall comparisons with some well-studied anodes, [9,17,[40][41][42] demonstrating the GDY has the potential to get ar easonable balance among its performance,fabrication, and processing.…”

Section: Angewandte Chemiementioning

confidence: 94%

Ultrathin Graphdiyne Nanosheets Grown In Situ on Copper Nanowires and Their Performance as Lithium‐Ion Battery Anodes

Shang

Zuo

et al. 2017

Angewandte Chemie

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Amethod is presented for the scalable preparation of high-quality graphdiyne nanotubes and ultrathin graphdiyne nanosheets (average thickness:ca. 1.9 nm) using Cu nanowires as ac atalyst. Fort he storage of Li + ions,t he graphdiyne nanostructures show ahigh capacity of 1388 mAh g À1 and high rate performance (870 mA hg À1 at 10 Ag À1 ,and 449.8 mA hg À1 at 20 Ag À1 )w ith robust stability,d emonstrating outstanding overall potential for its applications.

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Section: Angewandte Chemiementioning

confidence: 94%

Ultrathin Graphdiyne Nanosheets Grown In Situ on Copper Nanowires and Their Performance as Lithium‐Ion Battery Anodes

Shang

Zuo

et al. 2017

Angewandte Chemie

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“…Since then, the conductive‐hydrogel‐based electrode in lithium ion batteries has been further developed. Polypyrrole‐hydrogel‐coated TiO 2 , Si or Fe 3 O 4 nanoparticles as high‐performance Li‐ion battery electrodes also showed high gravimetric capacity and high areal capacity …”

Section: Applications In Flexible Electronic Devicesmentioning

confidence: 99%

“…Polypyrrole-hydrogel-coated TiO 2 ,S io rF e 3 O 4 nanoparticles as high-performance Li-ion battery electrodes also showed high gravimetric capacity and high arealcapacity. [116][117][118] Supercapacitors are another branch of promising energystoraged evices and have attracted considerable interestd ue to their high power density,r apid charge and discharge rates and long lifetimes. [119][120][121][122][123][124] Like flexible lithium ion batteries, flexible supercapacitors also need to meet the growingd emands for flexible electronic devices.…”

Section: Energystoragementioning

confidence: 99%

Conductive Hydrogels as Smart Materials for Flexible Electronic Devices

Rong

Lei

Liu

2018

Chemistry A European J

266

184

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Flexible conductive materials have gained considerable research interest in recent years because of their potential applications in flexible energy storage devices, sensors, touch panels, electronic skins, etc. With excellent flexibility, outstanding electric properties and tunable mechanical properties, conductive hydrogels as conductive materials offer plentiful insights and opportunities for flexible electronic devices. Numerous synthetic strategies have been developed to obtain various conductive hydrogels, and high-performance flexible electronic devices based on these conductive hydrogels have been realized. This review provides a comprehensive overview of conductive-hydrogel-based flexible electronics, ranging from conductive hydrogels synthesis to several important flexible devices applications, including touch panels, sensors and energy storage. Finally, we provide new future research directions and perspectives for conductive-hydrogel-based flexible and portable electronic devices.

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“…Conductive Binders : Similar to the conductive polymer coating in the core–shell strategy, conductive polymers are usually employed as functional binder to construct ETN in the composite electrodes . In this case, the conductive polymers act as both conductive agent and binder.…”

Section: Controlling Etn In Composite Electrodesmentioning

confidence: 99%

Strategies for Building Robust Traffic Networks in Advanced Energy Storage Devices: A Focus on Composite Electrodes

Wang

Min

et al. 2018

Advanced Materials

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portable electronics, cell phones, electrical vehicles (EVs), aerospace, etc. For advanced batteries, higher and higher energy density and/or power density, long cycling stability, good device safety, and low-cost are the primary goals. Since the energy density is mainly dependent on the specific capacity and loading level of active materials (AMs), AMs usually dominate the volume and weight inside the batteries. Because of this, tremendous efforts have been focused on high-performance AMs. However, the electrochemical performance of energy storage devices (ESDs) is fundamentally determined by a collective contribution or teamwork of all the components: AMs, electrolyte, separator, conductive agent, binders, etc. More importantly, with the increasing interests on high-capacity AMs (e.g., silicon, sulfur, Li-rich cathode, etc.), it becomes very clear that the "traffic system" (i.e., the charge transport system) plays very critical roles in the performance of the high-capacity AMs. Take silicon anode for example, a durable and flexible conductive network inside the electrode composite has been vital for addressing the big volume change issue. In this case, high-performance binders and conductive agent that can generate advanced conductive network are the keys. [2] In addition, with the increasing interests on EVs and flexible electronics, building a powerful and robust charge transport system inside ESDs is an urgent and critical task to support fast charging/ discharging capability and even flexibility of ESDs. In short, with the fast development of energy storage technologies, EVs, cell phones, etc., there is a critical, urgent, and challenging task on building powerful and durable charge transport system in next-generation advanced ESDs. Charge Transport Inside ESDsThe thriving of big cities highly relies on a powerful traffic system that transports the people, foods, products, etc. Similar to this picture, ESDs are powered by the transportation of charges, including both ions and electrons. As illustrated in Figure 1a, one can analogize the charge transport system and AMs in the electrodes of ESDs to the traffic system and buildings (i.e., host system of people), respectively. This analogy example not only help to explain the relationship between The charge transport system in an energy storage device (ESD) fundamentally controls the electrochemical performance and device safety. As the skeleton of the charge transport system, the "traffic" networks connecting the active materials are primary structural factors controlling the transport of ions/electrons. However, with the development of ESDs, it becomes very critical but challenging to build traffic networks with rational structures and mechanical robustness, which can support high energy density, fast charging and discharging capability, cycle stability, safety, and even device flexibility. This is especially true for ESDs with high-capacity active materials (e.g., sulfur and silicon), which show notable volume change during cycling. Therefore, there is an ur...

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A Tunable 3D Nanostructured Conductive Gel Framework Electrode for High‐Performance Lithium Ion Batteries

Cited by 191 publications

References 46 publications

Ultrathin Graphdiyne Nanosheets Grown In Situ on Copper Nanowires and Their Performance as Lithium‐Ion Battery Anodes

Ultrathin Graphdiyne Nanosheets Grown In Situ on Copper Nanowires and Their Performance as Lithium‐Ion Battery Anodes

Conductive Hydrogels as Smart Materials for Flexible Electronic Devices

Strategies for Building Robust Traffic Networks in Advanced Energy Storage Devices: A Focus on Composite Electrodes

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