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A Hierarchical Copper Oxide-Germanium Hybrid Film for High Areal Capacity Lithium Ion Batteries
A Hierarchical Copper Oxide-Germanium Hybrid Film for High Areal Capacity Lithium Ion Batteries
- Source :
- Frontiers in Chemistry, Frontiers in Chemistry, Vol 7 (2020)
- Publication Year :
- 2019
-
Abstract
- Self-supported electrodes represent a novel architecture for better performing lithium ion batteries. However, lower areal capacity restricts their commercial application. Here, we explore a facial strategy to increase the areal capacity without sacrificing the lithium storage performance. A hierarchical CuO–Ge hybrid film electrode will not only provide high areal capacity but also outstanding lithium storage performance for lithium ion battery anode. Benefiting from the favorable structural advance as well as the synergic effect of the Ge film and CuO NWs array, the hybrid electrode exhibits a high areal capacity up to 3.81 mA h cm−2, good cycling stability (a capacity retention of 90.5% after 150 cycles), and superior rate performance (77.4% capacity remains even when the current density increased to 10 times higher). Published version
- Subjects :
- Copper oxide
Ge
Materials science
chemistry.chemical_element
Germanium
Lithium Ion Battery
02 engineering and technology
010402 general chemistry
01 natural sciences
Lithium-ion battery
Self-supported Electrode
self-supported electrode
Ion
lcsh:Chemistry
chemistry.chemical_compound
Chemistry [Science]
Original Research
business.industry
General Chemistry
021001 nanoscience & nanotechnology
0104 chemical sciences
Areal capacity
CuO
Chemistry
lcsh:QD1-999
chemistry
areal capacity
Electrode
Optoelectronics
Lithium
lithium ion battery
0210 nano-technology
business
Current density
Subjects
Details
- ISSN :
- 22962646
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Frontiers in chemistry
- Accession number :
- edsair.doi.dedup.....f586550f0e01fd39a64445fdf5bedaac