A kind of preparation method of anode material of sodium ion battery
A sodium-ion battery and positive electrode material technology, which is applied in the field of electrochemistry, can solve the problems of low initial efficiency and poor cycle performance, and achieve the effects of high initial efficiency, good molding, and uniform coating
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Embodiment 1
[0022] (1) Add 0.23g (NH 4 ) 2 S 2 o 8 , 0.17g MnSO 4 ·H 2 O, 0.07g Na 2 SO 4 Add to 20g deionized water to make a uniform salt solution;
[0023] (2) Transfer the salt solution obtained in step (1) to a 25ml solvothermal reaction kettle, heat it to 180°C at a heating rate of 2°C / min, react for 6 hours, cool to room temperature naturally, suction filter, wash, dry and grind , to obtain black powder;
[0024] (3) Heat the black powder obtained in step (2) to 300°C at a heating rate of 2°C / min, react for 3 hours, cool to room temperature naturally, dry and grind to obtain Na 0.44 MnO 2 powder;
[0025] (4) 0.1g Na obtained in step (3) 0.44 MnO 2 Add the powder into 50ml 0.05mol / L sodium dodecylbenzenesulfonate aqueous solution, ultrasonically disperse for 30 minutes, add 0.0008g aniline monomer, stir for 20 minutes, add 0.002g (NH 4 ) 2 S 2 o 8 , reacted at 0°C for 6 hours, suction filtered, washed, dried and ground to obtain Na 0.44 MnO 2 Polyaniline composite...
Embodiment 2
[0027] (1) Add 0.23g (NH 4 ) 2 S 2 o 8 ,0.17g MnSO 4 ·H 2 O, 0.07g Na 2 SO 4 Add to 20g deionized water to make a uniform salt solution;
[0028] (2) Transfer the salt solution obtained in step (1) to a 25ml solvothermal reaction kettle, heat it to 180°C at a heating rate of 2°C / min, react for 6 hours, cool to room temperature naturally, suction filter, wash, dry and grind , to obtain black powder;
[0029] (3) Heat the black powder obtained in step (2) to 300°C at a heating rate of 2°C / min, react for 3 hours, cool to room temperature naturally, dry and grind to obtain Na 0.44 MnO 2 powder;
[0030] (4) 0.1g Na obtained in step (3) 0.44 MnO 2 Add the powder into 50ml 0.05mol / L sodium dodecylbenzenesulfonate aqueous solution, ultrasonically disperse for 30 minutes, add 0.0008g pyrrole monomer, stir for 20 minutes, add 0.003g (NH 4 ) 2 S 2 o 8 , reacted at 0°C for 6 hours, suction filtered, washed, dried and ground to obtain Na 0.44 MnO 2 polypyrrole composites...
Embodiment 3
[0032] (1) 1.8g (NH 4 ) 2 S 2 o 8 ,1.4g MnSO 4 ·H 2 O, 0.6g Na 2 SO 4 Add to 160g deionized water to make a uniform salt solution;
[0033] (2) Transfer the salt solution obtained in step (1) to a 200ml solvothermal reaction kettle, heat it to 180°C at a heating rate of 2°C / min, react for 8 hours, cool to room temperature naturally, suction filter, wash, dry and grind , to obtain black powder;
[0034] (3) Heat the black powder obtained in step (2) to 300°C at a heating rate of 2°C / min, react for 3 hours, cool to room temperature naturally, dry and grind to obtain Na 0.44 MnO 2 powder;
[0035] (4) 0.1g Na obtained in step (3) 0.44 MnO 2 Add the powder into 50ml of 0.05mol / L sodium dodecylbenzenesulfonate aqueous solution, ultrasonically disperse for 30 minutes, add 0.0008g of aniline monomer, stir for 20 minutes, add 0.0014g of ferric chloride, and react at 0°C for 6 hours. Suction filtration, washing, drying and grinding to obtain Na 0.44 MnO 2 Polyaniline com...
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