Stephen Kang in Materials Science https://sdkang.org/ Better Understanding, Lasting Impact, Scientific Progress Fri, 18 Aug 2023 04:32:52 +0000 en-US hourly 1 https://wordpress.org/?v=7.1 https://sdkang.org/wp-content/uploads/2020/06/logo-1-1-150x150.png Stephen Kang in Materials Science https://sdkang.org/ 32 32 Probing the Depths of Battery Heterogeneity https://sdkang.org/probing-the-depths-of-battery-heterogeneity/?utm_source=rss&utm_medium=rss&utm_campaign=probing-the-depths-of-battery-heterogeneity Fri, 18 Aug 2023 04:27:29 +0000 https://sdkang.org/?p=1487 In this Nature Nanotechnology article, we discuss the context that makes the electrode heterogeneity an important topic for batteries.

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]]> To Start at Seoul National University as Faculty https://sdkang.org/to-start-at-seoul-national-university-as-faculty/?utm_source=rss&utm_medium=rss&utm_campaign=to-start-at-seoul-national-university-as-faculty Sun, 23 Jul 2023 18:30:41 +0000 https://sdkang.org/?p=1468 Stephen D. Kang is moving to Korea to start a new lab at Seoul National University!

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]]> Make a citation alert on an uncited article – Google Scholar https://sdkang.org/make-a-citation-alert-on-an-uncited-article-google-scholar/?utm_source=rss&utm_medium=rss&utm_campaign=make-a-citation-alert-on-an-uncited-article-google-scholar Tue, 19 Jul 2022 22:28:58 +0000 https://sdkang.org/?p=1430 How can I create a citation alert with Google Scholar when the article has not been cited yet? Here is a simple workaround.

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]]> Why Google Scholar is now getting in the way https://sdkang.org/why-google-scholar-is-now-getting-in-the-way/?utm_source=rss&utm_medium=rss&utm_campaign=why-google-scholar-is-now-getting-in-the-way Sat, 09 Jul 2022 01:35:16 +0000 https://sdkang.org/?p=1400 Google Scholar was a godsend. It is now an obstacle for making science more searchable in an era of overwhelmingly expanding literature.

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]]> Contact resistance: important in battery electrodes! https://sdkang.org/nmccontact/?utm_source=rss&utm_medium=rss&utm_campaign=nmccontact Wed, 06 Jul 2022 05:51:31 +0000 https://sdkang.org/?p=1394 Bulk electronic conductivity of NMC is orders of magnitude larger than previously reported. It's because contact resistances were not properly excluded from measurements. We also find a significant carbon-related impedance component in porous electrodes, as resistive as the charge-transfer resistance but at an even lower frequency.

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]]> Stacking a reference electrode inside a coin cell https://sdkang.org/3electrode-coin-cell/?utm_source=rss&utm_medium=rss&utm_campaign=3electrode-coin-cell Tue, 22 Feb 2022 08:34:17 +0000 https://sdkang.org/?p=1381 In this video guide, we demonstrate how to assemble a 3-electrode coin cell featuring an in-stack reference electrode.

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]]> Why conventional GITT fails; how to fix it https://sdkang.org/why-conventional-gitt-fails-how-to-fix-it/?utm_source=rss&utm_medium=rss&utm_campaign=why-conventional-gitt-fails-how-to-fix-it Tue, 07 Dec 2021 09:17:31 +0000 https://sdkang.org/?p=1368 We explain why conventional GITT (Galvanostatic Intermittent Titration Technique) measurements do not work as intended.

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]]> The mobility concept in charge transport: pitfalls https://sdkang.org/pitfalls-of-mobility-in-charge-transport/?utm_source=rss&utm_medium=rss&utm_campaign=pitfalls-of-mobility-in-charge-transport Wed, 18 Aug 2021 07:45:57 +0000 https://sdkang.org/?p=1285 Did you know that mobility can be a misleading metric in understanding charge transport? We explain the pitfalls of Drude mobility.

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]]> Calculating Seebeck-Conductivity relations https://sdkang.org/tabulated-seebeck-conductivity-relations/?utm_source=rss&utm_medium=rss&utm_campaign=tabulated-seebeck-conductivity-relations Fri, 13 Aug 2021 08:32:17 +0000 https://sdkang.org/?p=1263 Wondering how to fit Seebeck-conductivity relations to your data? Is there an explicit equation?

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]]> Fictitious phase separation paper published in Nature Materials https://sdkang.org/fictitious-phase-separation-paper-published-in-nature-materials/?utm_source=rss&utm_medium=rss&utm_campaign=fictitious-phase-separation-paper-published-in-nature-materials Mon, 08 Mar 2021 16:36:05 +0000 https://sdkang.org/?p=1168 Our work unraveling the strange phase separation in single-phase lithium-intercalating layered oxides appears in Nature Materials. We also reveal that most battery particles are reaction-limited rather than diffusion-limited.

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