Details
| Original language | English |
|---|---|
| Pages (from-to) | 344-349 |
| Number of pages | 6 |
| Journal | Journal of Materiomics |
| Volume | 5 |
| Issue number | 3 |
| Publication status | Published - 28 May 2018 |
| Externally published | Yes |
Abstract
Potassium-ion batteries (KIBs) represent one of the most promising alternatives to lithium-ion batteries (LIBs) considering the potential low cost and abundant potassium resource. In this work, we demonstrate a core-shell structured sponge cathode for KIBs, where amorphous V2O5 uniformly coats on carbon nanotube (CNT) sponge via atomic layer deposition (ALD). The V2O5@CNT sponge shows several advantages as cathode: (1) the three-dimensional (3D) conductive network of CNT sponge offers a fast electron transport pathway, (2) the porous nature and high surface area of CNT sponge enables enough access for electrolyte to V2O5, (3) the amorphous structure of V2O5 offers a fast kinetics upon K-ion insertion/deinsertion. The V2O5@CNT sponge cathode delivers a high capacity of 206 mA h/g and moderate cycling and rate performance in common carbonate-based electrolyte system.
Keywords
- Amorphous vanadium oxide, Atomic layer deposition, Carbon nanotube sponge, Potassium ion batteries
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Surfaces, Coatings and Films
- Materials Science(all)
- Metals and Alloys
Sustainable Development Goals
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In: Journal of Materiomics, Vol. 5, No. 3, 28.05.2018, p. 344-349.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Atomic layer deposition of core-shell structured V2O5@CNT sponge as cathode for potassium ion batteries
AU - Ye, Fangliang
AU - Lu, Dongwei
AU - Gui, Xuchun
AU - Wang, Tengrui
AU - Zhuang, Xiaoying
AU - Luo, Wei
AU - Huang, Yunhui
N1 - Funding information: This work was supported by the Fundamental Research Funds for the Central Universities .
PY - 2018/5/28
Y1 - 2018/5/28
N2 - Potassium-ion batteries (KIBs) represent one of the most promising alternatives to lithium-ion batteries (LIBs) considering the potential low cost and abundant potassium resource. In this work, we demonstrate a core-shell structured sponge cathode for KIBs, where amorphous V2O5 uniformly coats on carbon nanotube (CNT) sponge via atomic layer deposition (ALD). The V2O5@CNT sponge shows several advantages as cathode: (1) the three-dimensional (3D) conductive network of CNT sponge offers a fast electron transport pathway, (2) the porous nature and high surface area of CNT sponge enables enough access for electrolyte to V2O5, (3) the amorphous structure of V2O5 offers a fast kinetics upon K-ion insertion/deinsertion. The V2O5@CNT sponge cathode delivers a high capacity of 206 mA h/g and moderate cycling and rate performance in common carbonate-based electrolyte system.
AB - Potassium-ion batteries (KIBs) represent one of the most promising alternatives to lithium-ion batteries (LIBs) considering the potential low cost and abundant potassium resource. In this work, we demonstrate a core-shell structured sponge cathode for KIBs, where amorphous V2O5 uniformly coats on carbon nanotube (CNT) sponge via atomic layer deposition (ALD). The V2O5@CNT sponge shows several advantages as cathode: (1) the three-dimensional (3D) conductive network of CNT sponge offers a fast electron transport pathway, (2) the porous nature and high surface area of CNT sponge enables enough access for electrolyte to V2O5, (3) the amorphous structure of V2O5 offers a fast kinetics upon K-ion insertion/deinsertion. The V2O5@CNT sponge cathode delivers a high capacity of 206 mA h/g and moderate cycling and rate performance in common carbonate-based electrolyte system.
KW - Amorphous vanadium oxide
KW - Atomic layer deposition
KW - Carbon nanotube sponge
KW - Potassium ion batteries
UR - http://www.scopus.com/inward/record.url?scp=85047770398&partnerID=8YFLogxK
U2 - 10.1016/j.jmat.2018.05.009
DO - 10.1016/j.jmat.2018.05.009
M3 - Article
AN - SCOPUS:85047770398
VL - 5
SP - 344
EP - 349
JO - Journal of Materiomics
JF - Journal of Materiomics
SN - 2352-8478
IS - 3
ER -