A group I’ve worked with before at Brookhaven National Lab have just published a paper looking at LiFePO4 de-lithiation visualized by XANES tomography. The cut-away view above shows that the Li initially transports preferentially from the left side, along the y-axis. This is followed by the z-direction, and then finally isotropic de-lithiation in the shrinking core at the end. (The red arrows in the bottom row illustrate this.) The paper can be found here.
I have a folder where I put all the files I create while peer reviewing a manuscript. This weekend I finished the fourth of 2016, and I usually assume the fourth will be the last. I wondered if that was always true. By counting up the files in this folder, I was able to see how many I had done each year, plotted below.
Four is in fact the most common number (the “mode” in this dataset, if you will). But what happened in 2013 and why did I do eight? By the way, I also see one of those had three revisions.
Update October 2016: I spoke too soon. I’m going to hit nine this year. You’re welcome, editors.
Update January 2017: Final tally: eleven. I believe in my heart of hearts the late-breaking rush was due to my tempting fate with this very post.
Yesterday was the last day of class for Transport Phenomena II, ending another year of momentum, heat, and mass transport at NYU.
We have a paper in the newest volume of the Journal of Power Sources. Like much of my recent work, this is about collecting localized diffraction data inside a battery while it cycles. This let us see the sudden phase change from MnO2 to α-MnOOH, and also see that this precipitates a sudden conversion to spinel. (Which is bad.) I’ll have a full write up soon.
For now check out my new publications list for this and more.
