A high-performance supercapacitor-battery hybrid energy storage device based on graphene-enhanced electrode materials with ultrahigh energy density

Zhang, Fan; Zhang, Tengfei; Yang, Xi; Zhang, Long; Leng, Kai; Huang, Yi; Chen, Yongsheng

doi:10.1039/c3ee40509e

Cited by 926 publications

(585 citation statements)

References 50 publications

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“…Chemical vapor deposition (CVD) has been successfully exploited as a promising method for fabricating graphene for diverse applications in different fields, including high-frequency electronics, 1 energy devices 2 and optoelectronics. 3 Specifically, the most important advantage of CVD is the industrial-scale fabrication of graphene, which is essential for the commercialization of graphene technologies.…”

Section: Introductionmentioning

confidence: 99%

A facile method for the selective decoration of graphene defects based on a galvanic displacement reaction

Hong

Lee

et al. 2016

NPG Asia Mater

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Inherent defects, such as grain boundaries (GBs), wrinkles and structural cracks, present on chemical vapor deposition (CVD)-grown graphene are inevitable because of the mechanism used for its synthesis. Because graphene defects are detrimental to electrical transport properties and degrade the performance of graphene-based devices, a defect-healing process is required. We report a simple and effective approach for enhancing the electrical properties of graphene by selective graphene-defect decoration with Pd nanoparticles (Pd NPs) using a wet-chemistry-based galvanic displacement reaction. According to the selective nucleation and growth behaviors of Pd NPs on graphene, several types of defects, such as GBs, wrinkles, graphene regions on Cu fatigue cracks and external edges of multiple graphene layers, were precisely confirmed via spherical aberration correction scanning transmission electron microscopy, field-emission scanning electron microscopy and atomic force microscopy imaging. The resultant Pd-NP-decorated graphene films showed improved sheet resistance. A transparent heater was fabricated using Pd-decorated graphene films and exhibited better heating performance than a heater fabricated using pristine graphene. This simple and novel approach promises the selective decoration of defects in CVD-grown graphene and further exploits the visualization of diverse defects on a graphene surface, which can be a versatile method for improving the properties of graphene.

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Section: Introductionmentioning

confidence: 99%

A facile method for the selective decoration of graphene defects based on a galvanic displacement reaction

Hong

Lee

et al. 2016

NPG Asia Mater

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“…The use of hybrid material as an electrode in supercapacitors result in the third category of supercapacitors called hybrid supercapacitors. In hybrid supercapacitors, the specific capacitance arises from Faradic as well as non-Faradic charge storage mechanism at the electrode and electrolyte interface (Zhang et al, 2013;Pardieu et al, 2015).…”

mentioning

confidence: 99%

Recent Advancements in the Cobalt Oxides, Manganese Oxides, and Their Composite As an Electrode Material for Supercapacitor: A Review

Uke¹,

Akhare

Bambole³

et al. 2017

Front. Mater.

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Recently, our modern society demands the portable electronic devices such as mobile phones, laptops, smart watches, etc. Such devices demand light weight, flexible, and low-cost energy storage systems. Among different energy storage systems, supercapacitor has been considered as one of the most potential energy storage systems. This has several significant merits such as high power density, light weight, eco-friendly, etc. The electrode material is the important part of the supercapacitor. Recent studies have shown that there are many new advancement in electrode materials for supercapacitors. In this review, we focused on the recent advancements in the cobalt oxides, manganese oxides, and their composites as an electrode material for supercapacitor.

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“…[5][6][7][8][9][10] One approach to addressing this issue is to combine the electrode configurations of both devices using a faradaic electrode on one side, with a non-faradaic capacitive electrode on the other side. [11][12][13][14] This configuration stores charge asymmetrically via faradaic and non-faradaic capacitive reactions, respectively. The fast surface adsorption/desorption at the capacitive electrode results in a favorable overall power capability of the device, and a high energy density can be achieved using the faradaic electrode.…”

mentioning

confidence: 99%

“…This kinetic imbalance limits the overall performance, so proper selection of a rapid-response faradaic electrode is particularly important. [11][12][13][14] Various nanostructured carbon materials (NSCMs) have been demonstrated as high-power faradaic electrodes, [15][16][17][18][19][20][21] with potential for applications as counter electrodes in asymmetric supercapacitors. These can be expected to exhibit a high power density due to the short transport path for ions and electrons, delivering relatively high capacity via intercalation of ions into the carbon structure.…”

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confidence: 99%

Ultra‐Thin Hollow Carbon Nanospheres for Pseudocapacitive Sodium‐Ion Storage

et al. 2014

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Ultra‐thin hollow carbon nanospheres (UTH‐CNs) are fabricated for use as anodes of asymmetric sodium ion pseudocapacitors. The ∼3 nm thick amorphous carbon walls obtained from regenerated silk proteins as a template exhibit a well‐defined porous structure suitable for reversible sodium‐ion storage. The UTH‐CNs show remarkable electrochemical activity with sodium via a pseudocapacitive reaction, delivering a large reversible capacity as well as superior rate performance for more than 1000 cycles. The pseudocapacitors based on UTH‐CNs exhibit a capacitance of 186 F g−1, a specific energy of 43 Wh kg−1 and a power density of 10 kW kg−1. This represents the highest value yet reported for asymmetric sodium‐ion storage pseudocapacitors.

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A high-performance supercapacitor-battery hybrid energy storage device based on graphene-enhanced electrode materials with ultrahigh energy density

Cited by 926 publications

References 50 publications

A facile method for the selective decoration of graphene defects based on a galvanic displacement reaction

A facile method for the selective decoration of graphene defects based on a galvanic displacement reaction

Recent Advancements in the Cobalt Oxides, Manganese Oxides, and Their Composite As an Electrode Material for Supercapacitor: A Review

Ultra‐Thin Hollow Carbon Nanospheres for Pseudocapacitive Sodium‐Ion Storage

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