The hardware of the Frick Chemistry Laboratory is indeed worthy of the top level in the United States, and the wealthy Princeton is not only willing to spend money on professors, but also very generous in its investment in instruments.
Moving the latest MACCOR high precision battery testing system over, Connie looked at Orion and smiled honestly.
"The best battery testing system in the entire Frick Chemical Laboratory is this one, I borrowed it for you!"
Orion: "There's really no need for such a good battery testing system ......"
Connie explains, "But you said it's better to invest in the instrumentation than to spend the budget on samples consumed by repetitive experiments."
Staring at Connie for a couple of moments, Orion suddenly felt that this kid was not at all as naive as he seemed.
The money spent on the machine was credited to him.
Well, wastefulness was shameful, and he was still a little heartbroken.
Putting the matter of the instrument aside for now, Orion asked with a serious face, "Can you do battery samples?"
Connie immediately said, "No problem, it's easy!"
Orion thought about it and made an order, "You'll be in charge of samples 11 and 14, and I'll be in charge of samples 15 and 23. Mix the hollow carbon sphere powder with mono-sulfur according to the mass fraction of 30%, 20% and 10% to make the anode material, then assemble the lithium battery, do you understand what to do?"
Connie stood up straight and said, "Of course!"
Negative electrode material is nothing to talk about, because the synthesis process is simple, and now the combination of modified PDMS film and copper-core lithium wafers is not only the standard in the industrial world, but has also become the standard in major materials science institutes.
As for the cathode material, it takes a little bit of work.
Not only hollow carbon spheres, but all carbon nanomaterials have similar troubles.
Simple mechanical mixing and grinding can only make the hollow carbon ball agglomerates mix macroscopically with the matrix powder, and can do nothing to disperse the agglomerates themselves.
The hollow carbon spheres have to be dispersed in ethanol by adding a surfactant such as polyurethane before they are mixed with the monolithic sulphur using the ball milling method.
As for the rest of the procedure, it's not particularly different from when Orion was experimenting with lithium.
The batteries are assembled in a glove box, then hooked up to a battery test system, and the performance of the materials in the electrodes is confirmed through a number of charge and discharge tests.
There's nothing tricky about any of this work.
In fact, there is no skill in materials research itself.
The current research and development of new materials is mainly based on the researcher's "scientific intuition" and a large number of repetitive "trial and error" experiments, using limited conditions to find a feasible method. If they can build a set of theories on this basis, which are applicable in a limited range, then they are considered to be quite powerful experts.
The mathematical approach reduces the amount of experimental work, but experimentation is still essential. ......
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YOU ARE READING
Orion Crest, Series_1
Science FictionIt is a memoir that depicts the history of human civilization hundreds of years into the future. In the next hundreds of chapters, Orion guides humanity towards the stars. How would you feel if someone said to you that our earth, our solar sy...
