Semi-solid lithium cathode suspension based on nickel-cobalt lithium manganese oxide carbon nanotube composite
A technology of nickel-cobalt lithium manganese oxide and carbon nanotubes, which is applied in the direction of positive electrodes, fuel cells, battery electrodes, etc., and can solve the problems of reducing the energy efficiency of the battery system and increasing the viscosity
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[0041] In this example, two materials, LNCM and LNCM / CNTs, were prepared respectively to compare the differences in their specific technical effects.
[0042] Firstly, the nickel-cobalt lithium manganese oxide / carbon nanotube composite material LNCM / CNTs is prepared, and the basic steps of its preparation are as follows:
[0043] Raw materials include analytically pure CH without any purification treatment 3 COOLi·2H 2 O(≥99.0%), Ni(CH 3 COO) 2 4H 2 O (≥98.0%), Co (CH 3 COO) 2 4H 2 O(≥99.5%) and Mn(CH 3 COO) 2 4H 2 O (≥99.0%).
[0044] 1) The raw materials were dissolved in distilled water to form a brown metal slurry with a Li:Ni:Co:Mn stoichiometric ratio of 3.3:1:1:1, and the excess lithium was used to compensate for the loss during the preparation process.
[0045] 2) Add carbon nanotubes to the brown metal slurry and mix evenly. The amount of carbon nanotubes added should ensure that the mass ratio of carbon nanotubes in the finally prepared LNCM / CNTs is 25%, t...
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