Hydrothermal method for preparing SnSe2/CNTs composite lithium ion battery electrode material
A lithium-ion battery, electrode material technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve problems such as large volume expansion, improve performance and life, improve discharge specific capacitance and cycle stability, and simple operation. Effect
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[0033] Example 1
[0034] According to the molar ratio (Sn:Se=1:2), weigh a certain amount of SnCl 2 And SeO 2 , Put the two reaction materials into the inner container of a 50 ml hydrothermal reactor, and the inner container is cleaned with deionized water and absolute ethanol in advance. According to a certain mass ratio (SnCl 2 : CNTs=10:1) Weigh a certain amount of carbon nanotubes and put them in the inner tank. Add a certain amount of deionized water to the inner tank to ensure that the filling volume is 80%, and then carry out magnetic stirring for 30 minutes, then put the inner tank into the reactor and seal it. The reaction kettle was placed in a constant temperature drying oven at 180 ℃ to react for 24 hours and then naturally cooled to room temperature. The obtained product was washed three times with deionized water and absolute ethanol by alternating centrifugation, and then dried in a thermostat at 80 ℃ for 12 h.
Example Embodiment
[0035] Example 2
[0036] According to the molar ratio (Sn:Se=1:2), weigh a certain amount of SnCl 2 And SeO 2 , Put the two reaction materials into the inner container of a 50 ml hydrothermal reactor, and the inner container is cleaned with deionized water and absolute ethanol in advance. According to a certain mass ratio (SnCl 2 : CNTs=10:1) Weigh a certain amount of carbon nanotubes and put them in the inner tank. Add a certain amount of deionized water to the inner tank to ensure that the filling volume is 80%, and then carry out magnetic stirring for 30 minutes, then put the inner tank into the reactor and seal it. The reaction kettle was placed in a constant temperature drying oven at 160 ℃ for 24 hours and then naturally cooled to room temperature. The obtained product was washed three times with deionized water and absolute ethanol by alternating centrifugation, and then dried in a thermostat at 80 ℃ for 12 h.
Example Embodiment
[0037] Example 3
[0038] According to the molar ratio (Sn:Se=1:2), weigh a certain amount of SnCl 2 And SeO 2 , Put the two reaction materials into the inner container of a 50 ml hydrothermal reactor, and the inner container is cleaned with deionized water and absolute ethanol in advance. According to a certain mass ratio (SnCl 2 : CNTs=10:1) Weigh a certain amount of carbon nanotubes and put them in the inner tank. Add a certain amount of deionized water to the inner tank to ensure that the filling volume is 80%, and then carry out magnetic stirring for 30 minutes, then put the inner tank into the reactor and seal it. The reaction kettle was placed in a constant temperature drying oven at 200 ℃ for 24 hours and then naturally cooled to room temperature. The resulting product was washed three times by alternating centrifugation with deionized water and absolute ethanol, and then dried in a thermostat at 80°C for 12 h.
[0039] The chemical raw material SnCl used in the above exa...
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