Zn-Ion Hybrid Micro-Supercapacitors with Ultrahigh Areal Energy Density and Long-Term Durability
Zhang P, Li Y, Wang G, Wang F, Yang S, Zhu F, Zhuang X, Schmidt OG, Feng X (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 31
Article Number: 1806005
Journal Issue: 3
Abstract
On-chip micro-supercapacitors (MSCs), as promising power candidates for microdevices, typically exhibit high power density, large charge/discharge rates, and long cycling lifetimes. However, as for most reported MSCs, the unsatisfactory areal energy density (<10 µWh cm−2) still hinders their practical applications. Herein, a new-type Zn-ion hybrid MSC with ultrahigh areal energy density and long-term durability is demonstrated. Benefiting from fast ion adsorption/desorption on the capacitor-type activated-carbon cathode and reversible Zn stripping/plating on the battery-type electrodeposited Zn-nanosheet anode, the fabricated Zn-ion hybrid MSCs exhibit remarkable areal capacitance of 1297 mF cm−2 at 0.16 mA cm−2 (259.4 F g−1 at a current density of 0.05 A g−1), landmark areal energy density (115.4 µWh cm−2 at 0.16 mW cm−2), and a superb cycling stability without noticeable decay after 10 000 cycles. This work will inspire the fabrication and development of new high-performance microenergy devices based on novel device design.
Involved external institutions
Germany (DE)How to cite
APA:
Zhang, P., Li, Y., Wang, G., Wang, F., Yang, S., Zhu, F.,... Feng, X. (2019). Zn-Ion Hybrid Micro-Supercapacitors with Ultrahigh Areal Energy Density and Long-Term Durability. Advanced Materials, 31(3). https://doi.org/10.1002/adma.201806005
MLA:
Zhang, Panpan, et al. "Zn-Ion Hybrid Micro-Supercapacitors with Ultrahigh Areal Energy Density and Long-Term Durability." Advanced Materials 31.3 (2019).
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