Current Collectors for Supercapacitors: Objectives, Modification Methods and Challenges

Abstract Supercapacitors (SCs) have emerged as promising candidates for efficient and sustainable energy storage devices due to their unique merits, including high power density and long lifespan. However, despite these advantages, SCs face significant challenges related to their relatively low ener...

Full description

Saved in:
Bibliographic Details
Main Authors: Miao Liu, Ji‐Chi Liu, Yue Zhang, Xu Han, Hui Li, Zi‐Hang Huang, Tianyi Ma
Format: Article
Language:English
Published: Wiley-VCH 2025-01-01
Series:ChemElectroChem
Subjects:
Online Access:https://doi.org/10.1002/celc.202400513
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Supercapacitors (SCs) have emerged as promising candidates for efficient and sustainable energy storage devices due to their unique merits, including high power density and long lifespan. However, despite these advantages, SCs face significant challenges related to their relatively low energy density. Current collectors are critical components of SCs, which significantly impacts the efficiency and overall performance by connecting active materials and external devices. However, the reviews on SCs are predominantly focused on electrode active materials or electrolyte materials, with insufficient comprehensive summaries regarding current collectors. This review focuses on the research progress related to current collectors in SCs. Firstly, the article outlines the modification objectives mechanism and inherent nature of SC current collectors. Building on this foundation, the authors further classify the current collector materials towards metallic, carbon‐based, polymers and other ones and highlights their modification strategies. Finally, the future development trends and challenges of SCs current collectors are comprehensively discussed.
ISSN:2196-0216