<\/p>\n\n\n\n
Presenter:\u00a0 Claire Villevieille Abstract<\/strong><\/p>\n\n\n\n The Li-ion chemistry is thus\nfar the most advanced chemistry employed in battery technology. To date, Li-ion\nbatteries dominate the market of the electronics and portables devices.\nHowever, in the field of electric and hybrid vehicles further improvements are\nrequired in terms of performance, safety, and cost. The same set of criteria\nconcerns other systems based on alternative chemistries such as Na-ion and solid-state\nbatteries. Advanced Li-ion batteries and the pre-cited novel systems utilize\nless understood electroactive materials and thus show new reaction mechanisms\nduring electrochemical cycling, the understanding of which requires new\ncharacterization tools and techniques. <\/p>\n\n\n\n Unfortunately, in most cases\nthe electrochemical cells used for operando<\/em>\nmeasurement are not ideal and suffer from low internal pressure (i.e. poor contact between the\nelectrodes). It shorts the lifespan of the cell and as a consequence most of the\nstudies presented in the literature focus on the first\/second cycle. Herein we\npresent different cell designs developed in our laboratory and used for operando<\/em>\/in situ<\/em> studies. Having overcome earlier mentioned obstacle our operando\/in situ<\/em> cells are able to\nsustain more than 100 cycles and simultaneously to perform structural studies\nsuch as X-ray and neutron diffraction. For the latter one, we also developed a\nnew set-up called stroboscopic mode. It allows operando <\/em>study of the batteries that are cycling at very high rates\n(e.g. 10C) with a neutron patterns collected each 1 s along 200 cycles and\nmore. <\/p>\n\n\n\n Additionally, we will use bulk, surface and imaging techniques to better\nunderstand the limitation of all solid state batteries. As an example, Operando\nneutron imaging has been employed to understand the Li diffusion within the\nelectrode and inside an all-solid state batteries employing Li3PS4 as solid\nelectrolyte whereas operando X-ray microscopic tomography was employed to\nfollow the possible electro-mechanical fracture occurring during cycling and\nthe possible impact on the electrochemical performance.<\/p>\n\n\n\n Other examples based on different operando\/in\nsitu<\/em> techniques such as X-ray diffraction, neutron diffraction, neutron\nimaging, and X-ray tomography microscopic used to characterize batteries will\nbe presented during the talk.<\/p>\n","protected":false},"excerpt":{"rendered":" Presenter:\u00a0 Claire VillevieilleTitle: Operando synchrotron and neutron based techniques to probe battery materialsAffiliation: Universit\u00e9 Grenoble-Alpes, Grenoble INP, LEPMI laboratory, France … Continue reading Invited talk: Operando synchrotron and neutron based techniques to probe battery materials<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"page-templates\/full-width.php","format":"standard","meta":{"footnotes":""},"categories":[53,52],"tags":[],"class_list":["post-1168","post","type-post","status-publish","format-standard","hentry","category-invited-talk","category-nordbatt2019"],"_links":{"self":[{"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/posts\/1168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/comments?post=1168"}],"version-history":[{"count":6,"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/posts\/1168\/revisions"}],"predecessor-version":[{"id":2064,"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/posts\/1168\/revisions\/2064"}],"wp:attachment":[{"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/media?parent=1168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/categories?post=1168"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/nordbatt.org\/2019\/wp-json\/wp\/v2\/tags?post=1168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Title: Operando synchrotron and neutron based techniques to probe battery materials
Affiliation: Universit\u00e9 Grenoble-Alpes, Grenoble INP, LEPMI laboratory, France <\/em><\/p>\n\n\n\n