{"id":486,"date":"2017-11-04T14:49:38","date_gmt":"2017-11-04T14:49:38","guid":{"rendered":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/?p=486"},"modified":"2017-11-04T14:49:38","modified_gmt":"2017-11-04T14:49:38","slug":"dg-lim-d-w-chung-r-kohler-j-proell-c-scherr-w-pfleging-re-garcia-designing-3d-conical-shaped-lithium-ion-microelectrodes-journal-of-the-electrochemical-society-1613a302-a307-2014","status":"publish","type":"post","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2017\/11\/04\/dg-lim-d-w-chung-r-kohler-j-proell-c-scherr-w-pfleging-re-garcia-designing-3d-conical-shaped-lithium-ion-microelectrodes-journal-of-the-electrochemical-society-1613a302-a307-2014\/","title":{"rendered":"DG Lim, D-W Chung, R Kohler, J Proell, C Scherr, W Pfleging, RE Garc\u00eda “Designing 3D Conical-Shaped Lithium-Ion Microelectrodes.” Journal of The Electrochemical Society. 161(3):A302-A307, 2014."},"content":{"rendered":"

DG Lim, D-W Chung, R Kohler, J Proell, C Scherr, W Pfleging, RE Garc\u00eda “Designing 3D Conical-Shaped Lithium-Ion Microelectrodes<\/a>.” Journal of The Electrochemical Society<\/strong>. 161(3):A302-A307, 2014.<\/p>\n

Abstract<\/h3>\n
\n

The effect of geometry on the power density and chemical stresses is assessed for a half cell three-dimensional LiCoO2<\/sub> cathode structure. Simulations demonstrate that for an individual unit cell, as the aspect ratio of the 3D structure increases, its charge capacity decreases by 50%, but its structural integrity improves by approximately 40% as compared to its thin film counterpart. Calculations show that the constructive superposition of an array of conical structures can provide an enhanced instantaneous power density, in agreement with experimental results. This effect occurs because the back of the electrode is electrochemically shielded by the electrochemically active 3D tip. Mechanically, during galvanostatic discharge, chemical stresses become tensile at the electrolyte \u2223 electrode tip interface and more compressive at the electrode \u2223 back contact interface, as a result of the electric field focusing at the tip of the 3D structure. When the aspect ratio of the 3D structure increases, the conical structure mechanically relaxes the substrate, thus reducing the possibility of mechanical failure-induced capacity loss. A critical aspect ratio that maximizes the discharge stresses, \u03be\u2032=0.32 was identified.<\/p>\n<\/div>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

DG Lim, D-W Chung, R Kohler, J Proell, C Scherr, W Pfleging,…<\/p>\n

Continue reading “DG Lim, D-W Chung, R Kohler, J Proell, C Scherr, W Pfleging, RE Garc\u00eda “Designing 3D Conical-Shaped Lithium-Ion Microelectrodes.” Journal of The Electrochemical Society. 161(3):A302-A307, 2014.”<\/span>…<\/a><\/div>\n
Continue reading \"DG Lim, D-W Chung, R Kohler, J Proell, C Scherr, W Pfleging, RE Garc\u00eda “Designing 3D Conical-Shaped Lithium-Ion Microelectrodes.” Journal of The Electrochemical Society. 161(3):A302-A307, 2014.\"<\/span>…<\/a><\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[45],"tags":[9,6,14],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/peeeSR-7Q","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":488,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2017\/11\/04\/d-w-chung-pr-shearing-np-brandon-sj-harris-re-garcia-particle-size-polydispersity-in-li-ion-batteries-journal-of-the-electrochemical-society-1613a422-a430-2014\/","url_meta":{"origin":486,"position":0},"title":"D-W Chung, PR Shearing, NP Brandon, SJ Harris, RE Garc\u00eda “Particle Size Polydispersity in Li-Ion Batteries.”\u00a0Journal of The Electrochemical Society, 161(3):A422-A430, 2014.","date":"11\/04\/2017","format":false,"excerpt":"D-W Chung, PR Shearing, NP Brandon, SJ Harris, RE Garc\u00eda \"Particle Size Polydispersity in Li-Ion Batteries.\"\u00a0Journal of The Electrochemical Society, 161(3):A422-A430, 2014. Abstract Starting from three-dimensional X-ray tomography data of a commercial LiMn2O4\u2009battery electrode, the effect of microstructure on the electrochemical and chemo-mechanical response of lithium-ion batteries is analyzed. Simulations\u2026","rel":"","context":"In "Papers"","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":466,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2017\/11\/04\/d-w-chung-n-balke-s-v-kalinin-re-garcia-virtual-electrochemical-strain-microscopy-of-polycrystalline-licoo2-films-journal-of-the-electrochemical-society-15810a1083-a1089-2011\/","url_meta":{"origin":486,"position":1},"title":"D-W Chung, N Balke, S V Kalinin, RE Garc\u00eda “Virtual Electrochemical Strain Microscopy of Polycrystalline LiCoO2 Films.”\u00a0Journal of The Electrochemical Society. 158(10):A1083-A1089, 2011.","date":"11\/04\/2017","format":false,"excerpt":"D-W Chung, N Balke, S V Kalinin, RE Garc\u00eda \"Virtual Electrochemical Strain Microscopy of Polycrystalline LiCoO2 Films.\"\u00a0Journal of The Electrochemical Society. 158(10):A1083-A1089, 2011. Abstract A recently developed technique, electrochemical strain microscopy (ESM), utilizes the strong coupling between ionic current and anisotropic volumetric chemical expansion of lithium-ion electrode materials to dynamically\u2026","rel":"","context":"In "Papers"","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":334,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2017\/10\/31\/microstructural-modeling-and-design-of-rechargeable-lithium-ion-batteries\/","url_meta":{"origin":486,"position":2},"title":"RE Garc\u00eda, Y-M Chiang, W C. Carter, P Limthongkul, CM Bishop “Microstructural modeling and design of rechargeable lithium-ion batteries”\u00a0Journal of the Electrochemical Society, 152:A255, 2005.","date":"10\/31\/2017","format":false,"excerpt":"RE Garc\u00eda, Y-M Chiang, W C. Carter, P Limthongkul, CM Bishop \"Microstructural modeling and design of rechargeable lithium-ion batteries\"\u00a0Journal of the Electrochemical Society, 152:A255, 2005. ABSTRACT The properties of rechargeable lithium-ion batteries are determined by the electrochemical and kinetic properties of their constituent materials as well as by their underlying\u2026","rel":"","context":"In "Papers"","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":468,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2017\/11\/04\/468\/","url_meta":{"origin":486,"position":3},"title":"B Vijayaraghavan, DR Ely, Y-M Chiang, R Garc\u00eda-Garc\u00eda, RE Garc\u00eda “An Analytical Method to Determine Tortuosity in Rechargeable Battery Electrodes.”\u00a0Journal of The Electrochemical Society. 159(5):A548-A552, 2012.","date":"11\/04\/2017","format":false,"excerpt":"B Vijayaraghavan, DR Ely, Y-M Chiang, R Garc\u00eda-Garc\u00eda, RE Garc\u00eda \"An Analytical Method to Determine Tortuosity in Rechargeable Battery Electrodes.\"\u00a0Journal of The Electrochemical Society. 159(5):A548-A552, 2012. Abstract In high energy density, low porosity, lithium-ion battery electrodes, the underlying microstructural tortuosity controls the macroscopic charge capacity, average lithium-ion diffusivity, and macroscopic\u2026","rel":"","context":"In "Papers"","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":381,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2017\/10\/31\/the-effect-of-microstructure-on-the-galvanostatic-discharge-of-graphite-anode-electrodes-in-licoo2-based-rocking-chair-rechargeable-batteries\/","url_meta":{"origin":486,"position":4},"title":"M. Smith, RE Garc\u00eda, QC Horn “The Effect of Microstructure on the Galvanostatic Discharge of Graphite Anode Electrodes in LiCoO2-Based Rocking-Chair Rechargeable Batteries.”\u00a0Journal of the Electrochemical Society. 156:A896, 2009.","date":"10\/31\/2017","format":false,"excerpt":"M. Smith, RE Garc\u00eda, QC Horn \"The Effect of Microstructure on the Galvanostatic Discharge of Graphite Anode Electrodes in LiCoO2-Based Rocking-Chair Rechargeable Batteries.\"\u00a0Journal of the Electrochemical Society. 156:A896, 2009. Abstract By starting from experimentally determined cross sections of rechargeable lithium-ion batteries, the effect of microstructure on the galvanostatic discharge of\u2026","rel":"","context":"In "Papers"","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":517,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2017\/11\/04\/x-jin-a-vora-v-hoshing-t-saha-g-shaver-re-garcia-o-wasynczuk-s-varigonda-physically-based-reduced-order-capacity-loss-model-for-graphite-anodes-in-li-ion-battery-cells-journal-of-powe\/","url_meta":{"origin":486,"position":5},"title":"X Jin, A Vora, V Hoshing, T Saha, G Shaver, RE Garc\u00eda, O Wasynczuk, S Varigonda “Physically-based reduced-order capacity loss model for graphite anodes in Li-ion battery cells.”\u00a0Journal of Power Sources, 342:750-761, 2017.","date":"11\/04\/2017","format":false,"excerpt":"X Jin, A Vora, V Hoshing, T Saha, G Shaver, RE Garc\u00eda, O Wasynczuk, S Varigonda \"Physically-based reduced-order capacity loss model for graphite anodes in Li-ion battery cells.\"\u00a0Journal of Power Sources, 342:750-761, 2017. Abstract Physically-based Li-ion electrochemical cell models have been shown capable of predicting cell performance and degradation, but\u2026","rel":"","context":"In "Papers"","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/486"}],"collection":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/comments?post=486"}],"version-history":[{"count":1,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/486\/revisions"}],"predecessor-version":[{"id":487,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/486\/revisions\/487"}],"wp:attachment":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/media?parent=486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/categories?post=486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/tags?post=486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}