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This is a Livestream Q&A/Ask Us Anything for answering YOUR questions on YouTube. In this Q&A session we will answer your electrochemistry research questions LIVE, as well as any other questions related personal topics like careers, academia, industry, or life in general. We have compiled a database of all questions asked in our Ask Us Anything About Electrochemistry Livestreams, tagged by the question subject and linked with time stamps to the place in that week's Livestream. If you are interested in obtaining a copy of this database (MS Excel file), please reach out via comments here or directly to us at pinewire@pineresearch.com. Check out https://aftermathlive.com, Pine Research's online electrochemical simulation software! Perfect for the classroom or research lab, licenses are available for simulating CV and bulk electrolysis of a variety of chemical and electrochemical reactions. Accessible on both PC and Mac! Time stamps: 00:00 - Introduction 05:56 - Livestream starts 07:09 - Please explain how Dunn's method is different for battery and supercapacitor type material? 16:51 - How realistic is it to do a PhD in electrochemistry with the intention of turning your research into a startup? Is that achievable or mostly wishful thinking? 26:57 - Why are lead–acid batteries suitable for high current applications but not for portable devices? Why does a dry cell show decrease in voltage with time even when not in use? 33:05 - ​​I install 3 types of reference electrodes into lithium ion cells, both 18650 and pouch cells. One electrode is Li metal, one is gold+lithium amalgam, one is 50% lithiated LiFePO4 cathode material. Each reference electrode gives me different voltages, which type is most stable and reliable to use? (for example its understood the Li metal anode grows SEI and drifts in voltage). 36:50 - How is half wave potential significantly different from peak potential? 45:00 - ​​What do multiple peaks in a cyclic voltammetry mean? For example, during reduction I've seen up to 4 peaks in an experiment but only 1 or 2 during oxidation. 58:57 - ​​Is it important to have a concentric counter electrode for rotating cylinder electrode, multiple counter electrodes instead of one? 1:00:45 - In ElS is it possible to differentiate whether the changes in Warburg impedance are due to diffusion from the electrolyte to the surface or diffusion within the material? 1:15:31 - ​​In the context of a half cell, what can I do when I get two visible semicircles at the beginning and the apparent third semicircle is hidden/intermingled with the diffusion tail? 1:23:00 - Can I theoretically use a rotating cylinder electrode from a suitable metal to study hydrogen oxidation and oxygen reduction in same way as in RDE, via Koutecky-Levich analysis, extracting kinetics? 1:25:25 - For my material, the b value at the redox peak is ~0.8, why does Dunn’s analysis still show ~20% diffusion contribution capacitance despite redox being surface-controlled processes? 1:29:44 - Could you explain the difference between the effect of mass transport on kinetics and thermodynamics and how to take these effects into account when modeling the polarization curve of an electrolyzer? 1:35:26 - What difference does it make if a Warburg element is in series with a RC element or if it is within an RC element (in series with R)? 1:39:33 - Can we say that redox is happening at the bulk as well as on the surface of the material? 1:42:12 - Why do textbooks always use reduction potential in electrochemistry?