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- Title
Controlled synthesis of hierarchical CoMnO nanostructures for flexible all-solid-state battery-type electrodes.
- Authors
Peng, Tao; Hou, Xiaoyi; Liu, Chang; Yu, Qiuhong; Luo, Rongjie; Yan, Hailong; Lu, Yang; Liu, Xianming; Luo, Yongsong
- Abstract
Design and control over the growth of novel nanomaterial for flexible electrode are significant and practical for the study of portable energy storage devices. Herein, the flexible all-solid-state charge-storage devices assembled by the hierarchical CoMnO nanoneedle array on the Ni foam electrode have been designed and manufactured. The CoMnO electrode is prepared via a hydrothermal process and subsequent annealing treatment. The CoMnO electrode has a high-power battery-type behavior with a capacity of 223 mAh g at a discharge current density of 1 A g in a three-electrode system. When applied in the flexible all-solid-state charge-storage device, it displays a satisfactory capacity of 46 mAh g at a discharge current density of 1 A g, an energy density of 23.29 Wh kg at a power density of 0.5 kW kg and a power density of 4 kW kg at an energy density of 12 Wh kg. About 80.3% of the initial capacity is achieved after 5000 charge/discharge cycles at a current density of 4 A g, which shows the excellent cycling stability of the device. This work demonstrates the potential application of the CoMnO nanoneedle array electrode for high-performance flexible charge-storage devices.
- Subjects
NANOSTRUCTURED materials synthesis; COBALT compounds; METAL foams; SOLID state batteries; NICKEL electrodes; ENERGY storage equipment
- Publication
Journal of Solid State Electrochemistry, 2017, Vol 21, Issue 6, p1579
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-017-3516-4