{"id":147,"date":"2018-06-15T17:49:47","date_gmt":"2018-06-15T17:49:47","guid":{"rendered":"https:\/\/research.engineering.ucdavis.edu\/greentech\/?page_id=147"},"modified":"2018-06-15T17:49:47","modified_gmt":"2018-06-15T17:49:47","slug":"past_li-poly","status":"publish","type":"page","link":"https:\/\/research.engineering.ucdavis.edu\/greentech\/past_li-poly\/","title":{"rendered":"Lithium-Polymer Studies"},"content":{"rendered":"<div id=\"pl-147\"  class=\"panel-layout\" ><div id=\"pg-147-0\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-147-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-147-0-0-0\" class=\"so-panel widget widget_text panel-first-child\" data-index=\"0\" >\t\t\t<div class=\"textwidget\"><p>Overcharge of lithium-ion batteries can lead to the deposition of lithium ions on the surface of graphite electrodes. The phenomenon of lithium deposition causes reduced electrochemical performance and presents safety concerns for lithium-ion batteries in high-power applications. This study presents a technique using neutron radiography (NR) for in situ visualization of the effects of overcharge in a graphite\/NCA (LiNi0.8Co0.15Al0.05O2) lithium-ion cell. Patterns of deposition of solid material on the surface of the graphite electrode observed in the radiographs were confirmed by direct observation of the electrode. Inductively coupled plasma mass spectrometry was used to verify the elemental contents of the deposited material. NR is shown to be a promising tool for the study of lithium-ion batteries in high-power applications.<\/p>\n<\/div>\n\t\t<\/div><div id=\"panel-147-0-0-1\" class=\"so-panel widget widget_media_image\" data-index=\"1\" ><img loading=\"lazy\" decoding=\"async\" width=\"611\" height=\"332\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic1.png\" class=\"image wp-image-154  attachment-full size-full\" alt=\"\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic1.png 611w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic1-300x163.png 300w\" sizes=\"auto, (max-width: 611px) 100vw, 611px\" \/><\/div><div id=\"panel-147-0-0-2\" class=\"so-panel widget widget_media_image\" data-index=\"2\" ><img loading=\"lazy\" decoding=\"async\" width=\"398\" height=\"258\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic2.png\" class=\"image wp-image-153  attachment-full size-full\" alt=\"\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic2.png 398w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic2-300x194.png 300w\" sizes=\"auto, (max-width: 398px) 100vw, 398px\" \/><\/div><div id=\"panel-147-0-0-3\" class=\"so-panel widget widget_media_image\" data-index=\"3\" ><img loading=\"lazy\" decoding=\"async\" width=\"592\" height=\"529\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic3.png\" class=\"image wp-image-152  attachment-full size-full\" alt=\"\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic3.png 592w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic3-300x268.png 300w\" sizes=\"auto, (max-width: 592px) 100vw, 592px\" \/><\/div><div id=\"panel-147-0-0-4\" class=\"so-panel widget widget_media_image\" data-index=\"4\" ><img loading=\"lazy\" decoding=\"async\" width=\"579\" height=\"568\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic4.png\" class=\"image wp-image-151  attachment-full size-full\" alt=\"\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic4.png 579w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic4-300x294.png 300w\" sizes=\"auto, (max-width: 579px) 100vw, 579px\" \/><\/div><div id=\"panel-147-0-0-5\" class=\"so-panel widget widget_media_image\" data-index=\"5\" ><img loading=\"lazy\" decoding=\"async\" width=\"570\" height=\"211\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic5.png\" class=\"image wp-image-150  attachment-full size-full\" alt=\"\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic5.png 570w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic5-300x111.png 300w\" sizes=\"auto, (max-width: 570px) 100vw, 570px\" \/><\/div><div id=\"panel-147-0-0-6\" class=\"so-panel widget widget_media_image\" data-index=\"6\" ><img loading=\"lazy\" decoding=\"async\" width=\"444\" height=\"348\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic6.png\" class=\"image wp-image-149  attachment-full size-full\" alt=\"\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic6.png 444w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic6-300x235.png 300w\" sizes=\"auto, (max-width: 444px) 100vw, 444px\" \/><\/div><div id=\"panel-147-0-0-7\" class=\"so-panel widget widget_media_image panel-last-child\" data-index=\"7\" ><img loading=\"lazy\" decoding=\"async\" width=\"435\" height=\"334\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic8.png\" class=\"image wp-image-148  attachment-full size-full\" alt=\"\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic8.png 435w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2018\/06\/batterypic8-300x230.png 300w\" sizes=\"auto, (max-width: 435px) 100vw, 435px\" \/><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Overcharge of lithium-ion batteries can lead to the deposition of lithium ions on the surface of graphite electrodes. The phenomenon [&hellip;]<\/p>\n","protected":false},"author":191,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-147","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages\/147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/users\/191"}],"replies":[{"embeddable":true,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/comments?post=147"}],"version-history":[{"count":2,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages\/147\/revisions"}],"predecessor-version":[{"id":156,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages\/147\/revisions\/156"}],"wp:attachment":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/media?parent=147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}