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Qiao Y, Liu Y, Zhu J, Jia P, Zhang L, Zhou W, Jiao T. Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO 4 Electrode Materials with Improved Electrochemical Performance. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8953. [PMID: 36556757 PMCID: PMC9782772 DOI: 10.3390/ma15248953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
As an electrode material, LiFePO4 has been extensively studied in the field of energy conversion and storage due to its inexpensive cost and excellent safety, as well as good cycling stability. However, it remains a challenge to obtain LiFePO4 electrode materials with acceptable discharge capacity at low temperature. Here, micro/nano-structured LiFePO4 electrode materials with grape-like morphology were fabricated via a facile solvothermal approach using ethanol and OA as the co-solvent, the surfactant as well as the carbon source. The structure and electrochemical properties of the LiFePO4 material were investigated with x-ray diffraction (XRD), field emission scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), and the formation mechanism of the self-assembled micro/nano-structured LiFePO4 was discussed as well. The micro/nano-structured LiFePO4 electrode materials exhibited a high discharge capacity (142 mAh·g-1) at a low temperature of 0 °C, and retained 102 mAh·g-1 when the temperature was decreased to -20 °C. This investigation can provide a reference for the design of micro/nano-structured electrode materials with improvement of the electrochemical performance at low temperature.
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Affiliation(s)
- Yuqing Qiao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Ying Liu
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Jianguo Zhu
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Peng Jia
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Liqiao Zhang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Wei Zhou
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Tifeng Jiao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
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Li J, Chang L, Chen B, Huang H, Guo Z. Effects of processing technology on the electrochemical behavior and Zn deposition process of Al-Mn-Ca alloy cathodes in high Cl− ions ZnSO4 solutions. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05272-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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