Evaluation method of stability of lithium ion battery slurry
A technology of lithium ion battery and evaluation method, which is applied in the field of evaluation of the stability of lithium ion battery slurry, can solve the problems of low rigor and complexity of results, and achieve the effects of easy operation, easy mastery, and rapid detection process.
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[0041] According to the operation steps of the above invention, nickel-cobalt lithium manganese oxide, ultrafine carbon powder and polyvinylidene fluoride are weighed, the mass percentages are 95.5%, 2.5% and 2.0% respectively, and the solvent is N-methylpyrrolidone. The above materials were stirred for 10 hours in a double planetary vacuum mixer to prepare positive electrode slurry.
[0042]Take about 450mL of slurry in a 500mL beaker, insert the piezoresistive pressure sensor probe vertically 1cm from the upper surface of the slurry, record the pressure value on the display screen, move the horizontal position, and record the pressure value on the display screen at this time, the same , continue to move the probe horizontally, and take 5 measurements on the same horizontal plane; continue to insert the pressure sensor probe vertically down 1cm, record the pressure value on the display screen, move the horizontal position, record the pressure value on the display screen at thi...
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