Universal 3D printing nano electrode slurry and preparation method thereof
A nano-electrode, 3D printing technology, applied in the field of electrochemical energy storage, can solve the problems of restricting the development of 3D printing technology and high requirements on rheological properties of 3D printing paste, and achieve the improvement of rheology and material dispersibility, and paste extrusion. smooth effect
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Embodiment 1
[0028] Weigh 700 mg of nano-lithium iron phosphate, 200 mg of graphene and 100 mg of polyvinylidene fluoride, mix them, add them into a mortar, grind for 10 minutes, add 3 mL of N-methylpyrrolidone, and continue grinding for 10 minutes to obtain the precursor of 3D printing nano-electrode slurry. grade samples, and then further make the final sample of pasty 3D printing battery electrode slurry by self-shear dispersion, the rheological properties of the prepared 3D printing battery electrode slurry are as follows: figure 1 shown.
Embodiment 2
[0030] Weigh 600mg of nano-lithium iron phosphate, 300mg of multi-walled carbon nanotubes and 100mg of polyvinylidene fluoride, mix them, add them into a mortar, grind for 10 minutes, add 2mL of N-methylpyrrolidone and continue grinding for 10 minutes to obtain 3D printing nano-electrode slurry The pre-stage samples were further made into paste-like 3D printing battery electrode paste final samples by self-shear dispersion.
Embodiment 3
[0032] Weigh 600mg of nano-lithium titanate, 300mg of conductive carbon black and 100mg of sodium carboxymethyl cellulose and mix them into a mortar. After grinding for 10 minutes, add 4mL of N pure water and continue grinding for 10 minutes to obtain the 3D printing nano-electrode slurry. Grade samples, and then further make the final sample of paste-like 3D printing battery electrode slurry by self-shear dispersion.
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