Method for preparing fluorine sodium ferrous phosphate porous spongy structure material
The invention relates to a method for preparing a fluorine sodium ferrous phosphate porous spongy structure material. In a sol-gel process, oxalic acid is adopted as a complexing agent and a reducingagent, an organic carbon source is adopted, and a Na2FePO4F porous spongy material is obtained in sol...
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| creator | XIE DONGLI LING RUI JIANG YANGYANG LI YUE HUA SHAOSHUAI SHEN KAI'ER CAI SHU |
| description | The invention relates to a method for preparing a fluorine sodium ferrous phosphate porous spongy structure material. In a sol-gel process, oxalic acid is adopted as a complexing agent and a reducingagent, an organic carbon source is adopted, and a Na2FePO4F porous spongy material is obtained in sol-gel and thermal treatment processes; and primary particles are 10-40nm, the diameters of the porous material particles are micron-scale and are 2-4 microns, and the pore diameters are 400-500nm. The porous spongy structure material is taken as a positive electrode material of a sodium-ion battery;and the performance is tested under the current density of 0.5C (1C=124mA.g) as follows: the initial discharge specific capacity can reach 97.0mAh.g and the specific capacity after 500 cyclescan still reach 73.4mAh.g. The sodium-ion battery has the characteristics of high capacity and good charge-discharge cycle performance. The method is simple in equipment, simple and convenient inprocess, available in raw m |
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In a sol-gel process, oxalic acid is adopted as a complexing agent and a reducingagent, an organic carbon source is adopted, and a Na2FePO4F porous spongy material is obtained in sol-gel and thermal treatment processes; and primary particles are 10-40nm, the diameters of the porous material particles are micron-scale and are 2-4 microns, and the pore diameters are 400-500nm. The porous spongy structure material is taken as a positive electrode material of a sodium-ion battery;and the performance is tested under the current density of 0.5C (1C=124mA.g<-1>) as follows: the initial discharge specific capacity can reach 97.0mAh.g<-1> and the specific capacity after 500 cyclescan still reach 73.4mAh.g<-1>. The sodium-ion battery has the characteristics of high capacity and good charge-discharge cycle performance. 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In a sol-gel process, oxalic acid is adopted as a complexing agent and a reducingagent, an organic carbon source is adopted, and a Na2FePO4F porous spongy material is obtained in sol-gel and thermal treatment processes; and primary particles are 10-40nm, the diameters of the porous material particles are micron-scale and are 2-4 microns, and the pore diameters are 400-500nm. The porous spongy structure material is taken as a positive electrode material of a sodium-ion battery;and the performance is tested under the current density of 0.5C (1C=124mA.g<-1>) as follows: the initial discharge specific capacity can reach 97.0mAh.g<-1> and the specific capacity after 500 cyclescan still reach 73.4mAh.g<-1>. The sodium-ion battery has the characteristics of high capacity and good charge-discharge cycle performance. 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In a sol-gel process, oxalic acid is adopted as a complexing agent and a reducingagent, an organic carbon source is adopted, and a Na2FePO4F porous spongy material is obtained in sol-gel and thermal treatment processes; and primary particles are 10-40nm, the diameters of the porous material particles are micron-scale and are 2-4 microns, and the pore diameters are 400-500nm. The porous spongy structure material is taken as a positive electrode material of a sodium-ion battery;and the performance is tested under the current density of 0.5C (1C=124mA.g<-1>) as follows: the initial discharge specific capacity can reach 97.0mAh.g<-1> and the specific capacity after 500 cyclescan still reach 73.4mAh.g<-1>. The sodium-ion battery has the characteristics of high capacity and good charge-discharge cycle performance. The method is simple in equipment, simple and convenient inprocess, available in raw m</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING |
| title | Method for preparing fluorine sodium ferrous phosphate porous spongy structure material |
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