Ultrafast high-energy micro-supercapacitors based on open-shell polymer-graphene composites

Yao, Lulu; Liu, Jiaxi; Eedugurala, Naresh; Paramasivam, Mahalingavelar; Adams, Daniel J.; Wang, Kaiping; Mayer, Kevin S.; Azoulay, Jason D.; Ng, Tse Nga

doi:10.1016/j.xcrp.2022.100792

Cited by 16 publications

(15 citation statements)

References 48 publications

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“…However, the occurrence of high‐volume changes during the cycling process results in a poor lifecycle. The electrochemical performance of supercapacitors can be improved by combining conducting polymers with carbonaceous and transition metal oxides for synthesising nanocomposites [253–255] . A research horizon to be explored is the development of biocompatible polymers that are environmentally friendly, have excellent heat resistance, have low viscosity degradation, and control water incursion in electrolytes.…”

Section: Research Avenues For Polymers In Automobilesmentioning

confidence: 99%

“…The electrochemical performance of supercapacitors can be improved by combining conducting polymers with carbonaceous and transition metal oxides for synthesising nanocomposites. [253][254][255] A research horizon to be explored is the development of biocompatible polymers that are environmentally friendly, have excellent heat resistance, have low viscosity degradation, and control water incursion in electrolytes. The use of polymers and their composites that have superior chemical, mechanical, and thermal properties beneficial for conducting, radiating, and storing thermal energy is presented in Figure 18.…”

Section: Research Avenues For Polymers In Automobilesmentioning

confidence: 99%

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Recent Developments and Research Avenues for Polymers in Electric Vehicles

Gupta¹,

Toksha

Patel³

et al. 2022

The Chemical Record

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Plastics have been an indispensable material of choice in automobiles with wide range of applications such as interior, exterior, under the hood, and lighting/wiring applications. The prime motive of inclusion of these materials is increase in fuel efficiency and reduction in carbon footprint by replacing the energy intensive metallic counterparts. The current decade i. e., the 2020s has seen a recent surge in the sales of electronic vehicles. Although these numbers are promising, the growth in the rest of the parts of the world is not encouraging. It is primarily due to the skepticism involving battery life and efficiency, profitability, and environmental footprint when compared to conventional and hybrid vehicles. Also, a more concerted effort is needed in the lagging areas in order to install the required infrastructure. The emergence of plastics in the development and acceptance of e-vehicles is going to be pivotal especially when the efficiency and profitability are considered as they give the required freedom to the engineers for the design and development of various parts and sizes by replacing the bulkier and more dense materials. Also, the research on bionanocomposites has received great interest from the research community due to their versatility in application along with their eco-friendly nature throughout the lifecycle starting from feedstock up to end-of-life treatment. This review paper will be one of its kind to present a critical review of the recent developments of polymers suitable for use in e-vehicles. Also, a comprehensive discussion comprising of newer research areas for polymers in their use for e-vehicles will be presented.

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Section: Research Avenues For Polymers In Automobilesmentioning

confidence: 99%

Section: Research Avenues For Polymers In Automobilesmentioning

confidence: 99%

Recent Developments and Research Avenues for Polymers in Electric Vehicles

Gupta¹,

Toksha

Patel³

et al. 2022

The Chemical Record

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“…Prior microfluidic desalination prototypes involve machining of plexiglass or molding of polydimethylsiloxane [15]; however, this poses challenges for embedding electronic components [16][17][18]. Here, we present a microfluidic platform built with cutting and lamination [19][20][21] of poly(ethylene terephthalate) (PET) films, which are compatible with additive printing [22][23][24][25][26][27][28][29] of electronic materials so that electrochemical units can be easily incorporated into different layers within the microfluidic platform.…”

Section: Introductionmentioning

confidence: 99%

Point-of-use printed nitrate sensor with desalination units

Shiller

Barnard³

et al. 2022

Microchim Acta

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Nitrate is an important marker of water quality that can be challenging to detect in seawater due to the presence of multiple chemical interferants and high background chloride. Here, we demonstrate a compact microfluidic device that incorporates electrochemical desalination to selectively remove the interfering chloride ions and improve the detection limit of the downstream potentiometric nitrate sensor. The microfluidic platform was fabricated by a low-cost cut-and-lamination approach, and the detection mechanism was based on potentiometric measurements at an Ag/AgCl electrode coated with a nitrate-selective membrane. The sensor system achieved a detection limit of 0.5 mM with a sensitivity of 11.3 mV/dec under continuous flow.

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“…At −20 °C, the photothermal conversion effect increased the device energy density to 183 μWh/cm 2 at the power output of 0.6 mW/cm 2 . Here, our results exceeded prior photothermal studies and were enabled by the expanded potential window and increased ionic transport in our GPE electrolyte as well as the higher film thickness , of our activated carbon electrodes.…”

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confidence: 99%

Photothermal Supercapacitors with Gel Polymer Electrolytes for Wide Temperature Range Operation

et al. 2023

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To deliver electrochemical energy over a wide range of temperatures, this work studies a new gel polymer electrolyte (GPE) for photothermal supercapacitors operating from −60 to 65 °C. The GPE consists of polyacrylonitrile mixed with an active filler sodium polystyrenesulfonate that simultaneously improves ionic conductivity and traps metal cation impurities. The self-discharge rate and impurity diffusion coefficients in the supercapacitors were lowered by the active filler to minimize energy loss in hot environments. For cold settings, the devices were packaged with a photothermal conversion layer that increased the internal cell temperature and raised the energy density to 94 μWh/cm2 at the output power density of 0.4 mW/cm2 in a −60 °C chamber. The combination of our improved GPE and photothermal conversion increased the stored energy and thereby extended the operational time of a motor driven from a cold start by a supercapacitor, demonstrating a high-performance design suitable for harsh environments.

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Ultrafast high-energy micro-supercapacitors based on open-shell polymer-graphene composites

Cited by 16 publications

References 48 publications

Recent Developments and Research Avenues for Polymers in Electric Vehicles

Recent Developments and Research Avenues for Polymers in Electric Vehicles

Point-of-use printed nitrate sensor with desalination units

Photothermal Supercapacitors with Gel Polymer Electrolytes for Wide Temperature Range Operation

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