Lithium sulfur battery positive electrode paste preparation method
A cathode slurry, lithium-sulfur battery technology, used in electrode manufacturing, battery electrodes, lithium batteries, etc., can solve the problems of lithium-sulfur battery capacity attenuation, easy uneven dispersion, poor cycle performance, etc., to inhibit migration and easy to mix. Even, avoid bleed effect
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Embodiment 1
[0026] The lithium-sulfur battery positive electrode slurry of this embodiment is prepared by the following method:
[0027] Select the raw material according to the mass percentage ratio of each component of the lithium-sulfur battery positive electrode slurry, take the sum of the mass of the sulfur positive electrode active material, conductive agent, dispersant and binder as the total mass (according to 100%), select 0.8g sulfur element , 0.1g acetylene black and 0.06g sodium carboxymethyl cellulose (CMC) were added into a mixing mixer to carry out stirring and dry-blending processing, so that the time of stirring and dry-blending processing was 20min, and after the dry-blending finished, a corresponding powdery mixture was obtained;
[0028] Then, add solvent deionized water to the powder mixture in three batches, specifically add 0.226g deionized water for the first premixing treatment, stir and mix for 30min, after stirring evenly, then add 0.678g deionized water Water i...
Embodiment 2
[0031] The lithium-sulfur battery positive electrode slurry of this embodiment is prepared by the following method:
[0032] Select the raw material according to the mass percentage ratio of each component of the lithium-sulfur battery positive electrode slurry, take the sum of the mass of the sulfur positive electrode active material, conductive agent, dispersant and binder as the total mass (according to 100%), select 0.9g sulfur element , 0.05g of earthy graphite and 0.03g of sodium alginate are added into a mixing mixer for stirring and dry-blending treatment, wherein, the sulfur element is preliminarily pulverized so that its particle size is 100nm, and the time for stirring and dry-blending treatment is 20min. After mixing, the corresponding powdery mixture is obtained;
[0033] Then, add solvent deionized water to the powder mixture in batches, specifically add 0.226g deionized water for the first premixing treatment, stir and mix for 30min, after stirring evenly, then ...
Embodiment 3
[0036] The lithium-sulfur battery positive electrode slurry of this embodiment is prepared by the following method:
[0037] Select raw materials according to the mass percentage ratio of each component of the lithium-sulfur battery positive electrode slurry, take the sum of the mass of the sulfur positive electrode active material, conductive agent, dispersant and binder as the total mass (according to 100%), select 0.6g sulfur element , 0.1g of BP2000 and 0.1g of sodium alginate were added to a mixing mixer for stirring and dry-blending treatment, wherein the sulfur element was pre-pulverized to make the particle size 300nm, and the time for stirring and dry-blending treatment was 20min, and the dry-blended After the end, the corresponding powdery mixture is obtained;
[0038] Then, add solvent deionized water to the powder mixture in batches, specifically add 0.226g deionized water for the first premixing treatment, stir and mix for 30min, after stirring evenly, then add 0....
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Abstract
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