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article · Journal of Composites Science

Review on Conductive Polymer Composites for Supercapacitor Applications

2024116 citationsOpen accessBahir Dar University

In plain language

Energy storage systems increasingly require high power density, rapid charge and discharge capabilities, and extended cycle life, driving investigation into advanced supercapacitor materials. Conductive polymer composites serve as promising candidates because they combine electrical conductivity, mechanical flexibility, and straightforward synthesis. However, pristine conductive polymers present notable performance challenges and limitations that restrict their standalone effectiveness in supercapacitors. Formulating composite materials offers practical strategies to overcome these specific drawbacks. Key areas of evaluation include understanding fundamental electrical conductivity mechanisms, meeting operational material requirements, and assessing the electromechanical properties of various composite configurations. Weighing the advantages and disadvantages of these composite formulations helps clarify their viability for enhanced supercapacitor design.

Key takeaways

  • Conductive polymer composites provide a combination of electrical conductivity, mechanical flexibility, and facile synthesis for supercapacitor applications.
  • Pristine conductive polymers exhibit inherent performance limitations that hinder their direct use in energy storage devices.
  • Formulating composite materials offers a viable strategy to address and resolve the drawbacks of unmodified conductive polymers.
  • Material suitability depends heavily on conductivity mechanisms and balanced electromechanical properties.

Why it matters

Supercapacitors provide rapid charging and high power delivery, making them vital for advancing energy storage capabilities. Identifying durable, flexible, and highly conductive materials is essential for improving device lifespan and operational efficiency. Understanding how composite formulations overcome the flaws of standard polymers helps researchers design sturdier materials for modern electronic and power systems.

Commercialisation angle

The work addresses materials intended for high-power energy storage devices requiring rapid charge and discharge rates. Supercapacitor manufacturers and flexible energy system developers could use composite strategies to solve stability and conductivity limitations. Because the findings are based on a review of fundamental mechanisms and material properties, the technology remains at an early, laboratory-based stage of development before reaching practical device integration.

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Abstract

The rising demand for energy storage systems with high power density, rapid charge/discharge capabilities, and long cycle life has pushed extensive research into advanced materials for supercapacitor applications. There are several materials under investigation, and among these materials, conductive polymer composites have emerged as promising candidates due to their unique combination of electrical conductivity, flexibility, and facile synthesis. This review provides a comprehensive analysis of recent advancements in the development and application of conductive polymer composites for supercapacitor applications. The review begins with an overview of the fundamental principles governing electrical conductivity mechanism, applications of conductive polymers and the specific requirements for materials employed for these devices. Subsequently, it delves into the properties of conductive polymers and the challenges associated with their implementation for supercapacitors, highlighting the limitations of pristine conductive polymers and the strategies employed to overcome these drawbacks through composite formation. In this review, conductive polymer composites and their applications on supercapacitors are explored, and their advantages and disadvantages are discussed. Finally, the electromechanical properties of each conductive polymer composite are elaborated.

Research topics

  • Supercapacitor Materials and Fabrication
  • Conducting polymers and applications
  • Advanced Sensor and Energy Harvesting Materials

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DOI: 10.3390/jcs8020053

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