Recent advances in micro-supercapacitors

Zhang, Hongxi; Cao, Yudong; Chee, Mason Oliver Lam; Dong, Pei; Ye, Mingxin; Shen, Jianfeng

doi:10.1039/c9nr01090d

Cited by 93 publications

(50 citation statements)

References 130 publications

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“…; X=C, N; n =1–3; T is the functional termination group) belong to a novel family of 2D metal carbides . With rich surface chemistry and exceptional ion intercalation behavior, MXenes have gained much attention as promising electrode materials for energy storage, such as in LIBs, Na‐ion batteries, Na‐ion hybrid capacitors, and MSCs . Having exhibited a stable specific volumetric capacitance close to 1500 F cm −3 and an outstanding metallic conductivity (≈6700 S cm −1 ), Ti 3 C 2 T x has become one of the most promising MXene compounds for energy storage …”

Section: Planar Mesdsmentioning

confidence: 99%

“…[116][117][118] With richs urface chemistry and exceptional ion intercalationb ehavior,MXeneshave gained much attention as promising electrode materials for energy storage, such as in LIBs, [119,120] Na-ion batteries, [118] Na-ion hybrid capacitors, [121] and MSCs. [121][122][123][124][125][126] Havinge xhibited as table specific volumetric capacitance close to 1500 Fcm À3 and an outstanding metallicc onductivity ( % 6700 Scm À1 ), Ti 3 C 2 T x has become one of the most promising MXenec ompounds for energy storage. [126] Flexible solid-stateM SCsh ave been fabricated based on these MXene nanosheets throughd ifferent methods.…”

Section: Graphene and Its Compositesmentioning

confidence: 99%

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Miniaturized Energy Storage Devices Based on Two‐Dimensional Materials

Jiang

Weng

2019

ChemSusChem

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A growing demand for miniaturized biomedical sensors, microscale self‐powered electronic systems, and many other portable, wearable, and integratable electronic devices is continually stimulating the rapid development of miniaturized energy storage devices (MESDs). Miniaturized batteries (MBs) and supercapacitors (MSCs) were considered to be suitable energy storage devices to power microelectronics uninterruptedly with reasonable energy and power densities. However, in addition to similar challenges encountered with electrode materials in conventional energy storage devices, their performances are also greatly affected by microfabrication technologies, as well as the challenges of how to realize stable and high‐performance MESDs in such a limited footprint area. Benefiting from the unique architectural engineering of two‐dimensional materials and the emergence of precise and controllable microfabrication techniques, the output electrochemical performances of MSCs and MBs are improving rapidly. This minireview summarizes recent advances in MSCs and MBs built from two‐dimensional materials, including electrode/device configuration designs, material synthesis, microfabrication processes, smart function incorporations, and system integrations. An introduction to configurations of the MESDs, from linear fibrous shapes, planar sandwich thin‐film or interdigital structures, to three‐dimensional configurations, is presented. The fundamental influences of the electrode material and configuration designs on the exhibited MB/MSC electrochemical performances are also highlighted.

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Section: Planar Mesdsmentioning

confidence: 99%

Section: Graphene and Its Compositesmentioning

confidence: 99%

Miniaturized Energy Storage Devices Based on Two‐Dimensional Materials

Jiang

Weng

2019

ChemSusChem

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“…Micro‐supercapacitors (MSCs) as a kind of stand‐alone power source which has a complement or even replaces for microbatteries. [ 7–9 ] The majority of MSCs are composed of thin‐film electrodes, either stacked with each other or have an in‐plane interdigital structure. Generally speaking, the planar MSCs are designed with interdigital finger current collectors, while electrolyte is coated on the surfaces and interspaces of the electrode.…”

Section: Introductionmentioning

confidence: 99%

Recent Developments of Planar Micro‐Supercapacitors: Fabrication, Properties, and Applications

Zhang

Zhou

et al. 2020

Adv Funct Materials

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The increasing development of wearable, portable, implantable, and highly integrated electronic devices has led to an increasing demand for miniaturization of energy storage devices. In recent years, supercapacitors, as an energy storage device, have received enormous attention owing to their excellent properties of quick charge and discharge, high power density, and long life cycle with minimal maintenance. Micro-supercapacitors (MSCs) as a promising candidate for miniaturized energy storage components have undergone considerable theoretical and experimental investigations. Particularly, planar MSCs with a 2D architecture design have more attractive application prospects due to their flexible design and excellent electrochemical performance. However, the major drawbacks of MSCs are their intrinsically low energy density. For this reason, researchers have conducted much investigation to improve their energy density in order to promote their practical application. Herein, the recent development and progress of planar MSCs from the scope of the substrates, electrode materials, fabrication methods, electrochemical properties, and applications are discussed. Finally, the currently existing challenges and developments associated with planar MSCs are also discussed. All in all, planar MSCs have great application potential in various fields of electrochemical energy storage, self-powered wireless sensors, and stimuli-responsive and photoresponsive, alternating current line filtering.

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“…They have received considerable attention due to their high power density, high rate capability, and long-term cycle life (Tahir et al 2019). Designing in-plane MSCs by placing electrodes in an interdigitated pattern fully maximises the advantages of the electrode materials (Kyeremateng, Brousse, and Pech 2017;Zhang, Cao, et al 2019). To obtain patterned electrodes, various patterning techniques such as laser scribing, spray-masking and photolithography have been employed (Liu et al 2016;Brousse et al 2018;Kim, Kang, and Moon 2018).…”

Section: Introductionmentioning

confidence: 99%