Pencil Powered Faradaic Electrode for Lithium‐Ion Capacitors with High Energy and Wide Temperature Operation

Lathika, Divya Madhusoodhanan; Lee, Yun‐Sung; Aravindan, Vanchiappan

doi:10.1002/batt.202200214

Cited by 7 publications

(1 citation statement)

References 59 publications

(100 reference statements)

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“…Increasing the quantity of clay to graphite creates a harder, more durable pencil, whereas increasing graphite content results in a "softer" pencil based on the hardness of the leads. The clay fraction in an H pencil is significantly less than in a 6H pencil lead [12][13][14].…”

Section: Introductionmentioning

confidence: 86%

Pencil-drawn graphitic traces on sticky note paper for wearable electronics

Padmanabha,

Gopal,

Waheed

et al. 2023

J. Phys.: Conf. Ser.

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Pencil-on-sticky note paper electrodes (PeoS) is a novel electrode fabrication method, using graphite from a pencil lead as an active material and sticky note paper as the substrate. This technique offers a low-cost and simple alternative for the fabrication of electrochemical sensors. In this paper, we aim to investigate the potential of PeoS as an effective electrode material for wearable electronic applications. The SEM images show overlapping graphite flakes, and the resistance of graphitic electrodes is found to be greater for xerox paper than for sticky note paper. An RC circuit based on sticky note paper yields the true nature for the square wave input. A bending test of the pencil-on-sticky note paper circuit shows an almost constant resistance value, showing PeoS has the potential to be used as a cost-effective alternative to traditional electrodes in wearable electronic applications, providing promising results for the future of non-invasive measurements of electrical signals.

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Section: Introductionmentioning

confidence: 86%

Pencil-drawn graphitic traces on sticky note paper for wearable electronics

Padmanabha,

Gopal,

Waheed

et al. 2023

J. Phys.: Conf. Ser.

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Enabling Fluorine‐Free Lithium‐Ion Capacitors and Lithium‐Ion Batteries for High‐Temperature Applications by the Implementation of Lithium Bis(oxalato)Borate and Ethyl Isopropyl Sulfone as Electrolyte

Kreth,

Köps,

Leibing

et al. 2024

Advanced Energy Materials

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A novel fluorine‐free electrolyte comprising a solution of lithium bis(oxalato)borate in ethyl isopropyl sulfone is presented. It is characterized by its safety and non‐toxic properties, along with the capability to effectively suppress the anodic dissolution of aluminum. Successful high‐temperature application of this electrolyte in combination with various capacitor‐ and battery‐like electrode materials is shown. Further utilization in a lithium‐ion capacitor and a lithium‐ion battery is demonstrated. To the best of the knowledge, the lithium‐ion capacitor presented in this work represents the first entirely fluorine‐free device suitable for high‐temperature applications. When operating at 60 °C, this device delivers a maximum energy output of 169 Wh kg−1AM at a power of 200 W kg−1AM and even 80 Wh kg1AM at 10 kW kg‐1AM, along with the ability to retain 80% of its initial capacitance after 3500 cycles at 5 A g−1. As such, this novel electrolyte is a promising alternative to conventional fluorine‐containing configurations since its performance is capable to match or even surpass that of most similar laboratory‐scale LICs.

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Design of Wide‐Temperature Lithium‐Sulfur Batteries

Yang,

Zhao,

et al. 2024

Batteries & Supercaps

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In electrochemical energy storage (EES), lithium‐sulfur (Li‐S) batteries have recently gained recognition for their exceptional theoretical specific capacity, making them stand out among a wide range of cutting‐edge energy storage technologies. While Li‐S batteries demonstrate a long cycle life under regular conditions, expanding their application scenarios is crucial for their future development. Specifically, ensuring stable battery operation in extreme temperature environments, such as below 0°C and above 60°C, becomes paramount. Thus, this review aims to summarize the recent progress of Li‐S batteries in extreme temperature ranges and analyze the processability of critical materials within these batteries at extreme temperatures. Ultimately, this review presents insights and potential prospects for Li‐S battery systems operating within a wide temperature range, contributing to advancing energy storage devices capable of functioning across various temperatures.

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Pencil Powered Faradaic Electrode for Lithium‐Ion Capacitors with High Energy and Wide Temperature Operation

Cited by 7 publications

References 59 publications

Pencil-drawn graphitic traces on sticky note paper for wearable electronics

Pencil-drawn graphitic traces on sticky note paper for wearable electronics

Enabling Fluorine‐Free Lithium‐Ion Capacitors and Lithium‐Ion Batteries for High‐Temperature Applications by the Implementation of Lithium Bis(oxalato)Borate and Ethyl Isopropyl Sulfone as Electrolyte

Design of Wide‐Temperature Lithium‐Sulfur Batteries

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