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Tan W, Liu Z, Wu Q, Yuan L, Xia Z, Zhao K, Huang C, Chen L, Lu S, Wang L. Flexible free-standing Fe-CoP-NAs/CC nanoarrays for high-performance full lithium-ion batteries. J Colloid Interface Sci 2024; 667:441-449. [PMID: 38642483 DOI: 10.1016/j.jcis.2024.04.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/07/2024] [Accepted: 04/14/2024] [Indexed: 04/22/2024]
Abstract
In this study, a flexible, free-standing Fe-doped CoP nanoarrays electrode for superior lithium-ion storage has been successfully fabricated. The electrode combines the advantages of a Fe-doping and a flexible carbon cloth (CC) support, resulting in a high specific capacity (1356 mAh/g at 0.2 A/g) and excellent cycling stability (1138 mAh/g after 100 cycles). The cyclic voltammetry (CV) curves at different scan rates investigate the outstanding lithium storage behavior of Fe-CoP-NAs/CC which indicates a combined influence of diffusion behavior and capacitance behavior on the electrochemical process. The galvanostatic intermittent titration technique (GITT) analyzes the diffusion kinetics of Li+ which indicates the fast diffusion kinetics in the Fe-CoP/NAs/CC anode. The assembled Fe-CoP-NAs/CC//LiFePO4 battery exhibits a remarkable capacity of 325.2 mAh/g even at 5 A/g. And the battery also has good cycle stability, and still provides 498.1 mAh/g specific capacity after 200 cycles. Moreover, the Fe-CoP-NAs/CC//LiFePO4 soft-pack battery can continuously power the LEDs when it is bent at various angles which demonstrates its potential for use in wearable devices.
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Affiliation(s)
- Wenqi Tan
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
| | - Zhongping Liu
- Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China.
| | - Qian Wu
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
| | - Linying Yuan
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
| | - Zijie Xia
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
| | - Kangning Zhao
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion CH-1950, Switzerland.
| | - Chen Huang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Luyang Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Shigang Lu
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
| | - Linlin Wang
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China.
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