| Autor: |
CHENG Jingkang, ZHANG Yunlong, CHAO Huixia, HUANG Yunchun, QIN Haiquan, CAO Linfang, TENG Xiaoling, HU Han, WU Mingbo |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Cailiao gongcheng, Vol 51, Iss 6, Pp 29-37 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1001-4381 |
| DOI: |
10.11868/j.issn.1001-4381.2021.000015 |
| Popis: |
As a new generation of energy storage devices, lithium-ion capacitors (LICs) rationally combine high energy density and high power density, providing an alternative solution for multi-functional electronic equipment and state grid system. However, the dynamic mismatch between the battery-type anode and the capacitor-type cathode seriously limits its development and application. Herein, a high performance LIC simultaneously using carbon materials derived from Ethylenediaminetetraacetic Acid Ferric Sodium Salt (EDTA-Na-Fe) was prepared. By calcination of EDTA-Na-Fe in an inert atmosphere, nitrogen-doped carbon frameworks (NCF) can be obtained which possess a high reversible capacity and excellent rate-capability. Using this NCF as the anode and cathode of the LICs, the hybrid devices with a wide voltage window of 0.5-4.0 V are obtained. The employment of the same materials as the anode and cathode can largely simplify the fabrication process. The energy density of LICs can reach 193.4 Wh·kg-1 at a power density of 225 W·kg-1. This reasonable dynamic matching strategy can be helpful for the application of LICs. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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