Thursday 5/21/09
Today was pretty uneventful. Mohit spent almost the entire day in a meeting, so I just read some more books about impedance and Lithium ion batteries. I think I’m really starting to get the hang of it now. I don’t think I’d bee too eloquent if I had to explain it all, but I think I have the gist of it figured out and have a pretty clear picture in my head about how it all fits together. I took some measurements with the instrument (what?) and took Nyquist plots of different cells. I also learned to clean swage-lock cells, a very important part of the measurements I will be doing, as they house the cell and connect to the measuring instrument. I haven’t really had much practical experience about things I learn in my classes, especially since last semester for EE 202 there wasn’t a lab section and circuit labs come later in the curriculum, so it was very eye-opening to see how everything worked outside the textbook in real life. I always wondered why people would need to know how to use imaginary numbers and such, and I learned about sinusoidal currents and responses to the current in class, but now I got to see it in action and how everything was actually used in industry.
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