A Review on Cutting Edge Technologies of Silicon-Based Supercapacitors

Wu, Zhong; Zhang, Xianfeng; Jin, Xiaoqi; Li, Tong; Ge, Jinlong; Li, Zongqun

doi:10.1155/2021/6650131

Cited by 5 publications

(2 citation statements)

References 102 publications

(103 reference statements)

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“…Moreover, silicon is the second most abundant element on Earth, which means there is a stable and sustainable supply. This, combined with its low cost and environmentally safe properties, places silicon in a favorable position as a viable choice for supercapacitor electrode materials [20][21][22]. To enhance the electrical conductivity and the specific capacitance of the electrode, the combination of several elements with Si to form a ternary material can be an effective method.…”

Section: Introductionmentioning

confidence: 99%

Rough and Porous Micropebbles of CeCu2Si2 for Energy Storage Applications

Scarpa,

Cirillo,

Luciano

et al. 2023

Materials

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Supercapacitors have attracted considerable attention due to their advantages, including being lightweight and having rapid charge–discharge, a good rate capability, and high cyclic stability. Electrodes are one of the most important factors influencing the performance of supercapacitors. Herein, a three-dimensional network of rough and porous micropebbles of CeCu2Si2 has been prepared using a one-step procedure and tested for the first time as a supercapacitor electrode. The synthesized material was extensively characterized in a three-electrode configuration using different electrochemical techniques, such as cyclic voltammetry (CV), galvanostatic charge and discharge (GCD) tests, and electrochemical impedance spectroscopy (EIS). CeCu2Si2 shows rather high mass-capacitance values: 278 F/g at 1 A/g and 295 F/g at 10 mV/s. Moreover, the material exhibits remarkable long-term stability: 98% of the initial capacitance was retained after 20,000 cycles at 10 A/g and the Coulombic efficiency remains equal to 100% at the end of the cycles.

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Section: Introductionmentioning

confidence: 99%

Rough and Porous Micropebbles of CeCu2Si2 for Energy Storage Applications

Scarpa,

Cirillo,

Luciano

et al. 2023

Materials

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“…The objective of this work is to increase the areal energy density of µSCs. Integrated micro-devices will be built with nanocomposite electrodes based on silicon nanowires (SiNWs) as the conductive nanostructured substrate [ 25 , 26 ] and ECPs as the key energy source for the electrode. Such nanowires were used as electrode materials and gave double layer capacitance values reaching 46 µF·cm −2 for hundreds of cycles [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

New PEDOT Derivatives Electrocoated on Silicon Nanowires Protected with ALD Nanometric Alumina for Ultrastable Microsupercapacitors

et al. 2022

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This work deals with electroactive conducting polymers (ECPs) used as a complementary component on purely capacitive silicon nanowires protected by a 3 nm alumina layer. Accordingly, in this work, we use a fast and simple deposition method to create a pseudocapacitive material based on the electropolymerization in aqueous micellar media (SDS and SDBS 0.01 M) of hydroxymethyl-EDOT (EDOT-OH) onto 3 nm alumina-coated silicon nanowires (Al3@SiNWs). The composite material displays remarkable capacitive behavior with a specific capacitance of 4.75 mF·cm−2 at a current density of 19 µA·cm−2 in aqueous Na2SO4 electrolyte.

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Mg‐Doped Porous Silicon Derived from Silica Aerogels for Fast and Stable Zinc‐Ion Hybrid Capacitors with High Capacitance

Deng,

Li,

Zewdie

et al. 2023

Adv Funct Materials

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Zinc‐ion hybrid capacitors (ZICs) are of interest for their optimal balance between power and energy density. Among the cathode materials, silicon is particularly attractive due to its abundance and potential compatibility with the microelectronics industry. However, silicon‐based materials exhibit specific capacitances far below 100 mF cm−2 because of their inherently low electronic and ionic transport, making them less competitive than other nanomaterials such as carbon and MXenes. In this study, state‐of‐the‐art silicon‐based ZICs using Mg‐doped porous silicon (PSi) derived from silica aerogels are constructed. The improved electronic conductivity achieved by Mg doping, combined with enhanced ion diffusion promoted by the porous structure, results in excellent electrochemical properties of the ZIC. Consequently, the prepared ZIC exhibits a specific capacitance of 106.1 mF cm−2 at 0.2 mA cm−2 with remarkable cyclic stability (92% retention after 20 000 cycles). Additionally, the pouch ZICs using gel electrolytes demonstrate good rate capability and a long lifespan, indicating significant potential for practical applications. These results underscore the potential of heteroatom‐doped PSi as a cathode for ZICs.

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A Review on Cutting Edge Technologies of Silicon-Based Supercapacitors

Cited by 5 publications

References 102 publications

Rough and Porous Micropebbles of CeCu2Si2 for Energy Storage Applications

Rough and Porous Micropebbles of CeCu2Si2 for Energy Storage Applications

New PEDOT Derivatives Electrocoated on Silicon Nanowires Protected with ALD Nanometric Alumina for Ultrastable Microsupercapacitors

Mg‐Doped Porous Silicon Derived from Silica Aerogels for Fast and Stable Zinc‐Ion Hybrid Capacitors with High Capacitance

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