Affiliation:
1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering Hunan University Changsha 410082 China
2. Greater Bay Area Institute for Innovation Hunan University Guangzhou 511300 China
Abstract
AbstractEmerging flexible and wearable electronic products are placing a compelling demand on lightweight transparent energy storage devices. Owing to their distinguishing features of safety, high specific energy, cycling stability, and rapid charge/discharge advantages, Zn‐ion hybrid supercapacitors are a current topic of discussion. However, the trade‐off for optical transmittance and energy density remains a great challenge. Here, a high‐performance Zn‐ion hybrid supercapacitor based on the customizable ultrathin (5 µm), ultralight (0.45 mg cm−2), and ultra‐transparent (87.6%) Ni micromesh based cathode and Zn micromesh anode with the highest figure of merit (84 843) is proposed. The developed flexible transparent Zn‐ion hybrid supercapacitors reveal excellent cycle stability (no decline after 20 000 cycles), high areal energy density (31.69 µWh cm−2), and high power density (512 µW cm−2). In addition, the assembled solid flexible and transparent Zn‐ion hybrid supercapacitor with polyacrylamide gel electrolyte shows extraordinary mechanical properties even under extreme bending and twisting operation. Furthermore, the full device displays a high optical transmittance over 55.04% and can be conformally integrated with diverse devices as a flexible transparent power supply. The fabrication technology offers seamless compatibility with industrial manufacturing, making it an ideal model for the advancement of portable and wearable devices.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Hunan Province
Fundamental Research Funds for the Central Universities
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body
Subject
General Materials Science,General Chemistry
Cited by
1 articles.
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