{"id":489840,"date":"2022-09-02T21:31:15","date_gmt":"2022-09-02T18:31:15","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/researchers-train-ai-to-predict-ev-battery-degradation\/"},"modified":"2022-09-02T21:31:15","modified_gmt":"2022-09-02T18:31:15","slug":"researchers-train-ai-to-predict-ev-battery-degradation","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/researchers-train-ai-to-predict-ev-battery-degradation\/","title":{"rendered":"#Researchers train AI to predict EV battery degradation"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a3b86d500041\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a3b86d500041\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/researchers-train-ai-to-predict-ev-battery-degradation\/#%E2%80%9CResearchers_train_AI_to_predict_EV_battery_degradation%E2%80%9D\" >&#8220;Researchers train AI to predict EV battery degradation&#8221;<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/researchers-train-ai-to-predict-ev-battery-degradation\/#Batteries_also_degrade_when_not_in_use\" >Batteries also degrade when not in use<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/buradabiliyorum.com\/en\/researchers-train-ai-to-predict-ev-battery-degradation\/#Hi_there_EV_nerd\" >Hi there, EV nerd!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/buradabiliyorum.com\/en\/researchers-train-ai-to-predict-ev-battery-degradation\/#Bridging_research_with_the_EV_market\" >Bridging research with the EV market<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/buradabiliyorum.com\/en\/researchers-train-ai-to-predict-ev-battery-degradation\/#How_do_the_algorithms_work\" >How do the algorithms work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/buradabiliyorum.com\/en\/researchers-train-ai-to-predict-ev-battery-degradation\/#What_did_the_results_show\" >What did the results show?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CResearchers_train_AI_to_predict_EV_battery_degradation%E2%80%9D\"><\/span>&#8220;Researchers train AI to predict EV battery degradation&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div id=\"article-main-content\">\n                            Lithium-ion batteries have become a key component in the rise of electric mobility, but forecasting their health and lifespans is limiting the <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">technology<\/a>.<\/p>\n<p>While they\u2019ve proven successful, the capacity of lithium-ion batteries degrades over time, and not just because of the ageing process that occurs during charging and discharging \u2014 known as \u201ccycling ageing.\u201d<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Batteries_also_degrade_when_not_in_use\"><\/span><strong>Batteries also degrade when not in use<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Lithium-ion battery cells also suffer degradation from so-called \u201ccalendar ageing,\u201d which occurs during storage, or simply when the battery is not in use. It\u2019s determined by three main factors: the rest state of charge (SOC), the rest temperature, and the duration of the rest time of a battery.<\/p>\n<div class=\"inarticle-wrapper shift channel-cta hs-embed-tnw\">\n<div id=\"hs-embed-tnw\" class=\"channel-cta-wrapper\">\n<div class=\"channel-cta-img\"><img class=\"js-lazy\" https:=\"\"\/><\/div>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/thenextweb.com\/news\/src=\" https:=\"\"\/><\/noscript><\/p>\n<div class=\"channel-cta-input\">\n<h2 class=\"channel-cta-title\"><span class=\"ez-toc-section\" id=\"Hi_there_EV_nerd\"><\/span>Hi there, EV nerd!<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"channel-cta-tagline\">Subscribe now for a weekly recap of our favorite mobility stories<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>Given that an electric vehicle will spend most of its life parked, predicting the cells\u2019 capacity degradation from calendar ageing is crucial; it can prolong battery life and pave the way for mechanisms that could even circumvent the phenomenon.<\/p>\n<p>For this reason, researchers have been employing advanced machine learning algorithms to accurately predict calendar ageing.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Bridging_research_with_the_EV_market\"><\/span><strong>Bridging research with the EV market<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In a recent<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/open-research-europe.ec.europa.eu\/articles\/2-96\"> study<\/a> funded by the EU\u2019s<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/research-and-innovation.ec.europa.eu\/funding\/funding-opportunities\/funding-programmes-and-open-calls\/horizon-2020_en\"> Horizon 2020 program<\/a>, a team of scientists took the\u00a0research a step further by comparing the accuracy of two algorithms on the wide spectrum of commercial lithium-ion battery chemistries.<\/p>\n<p>Specifically, they drew calendar ageing data from six types of battery cell chemistries: Lithium Cobalt Oxide (LCO), Lithium Iron Phosphate (LIP), Lithium <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/anime-manga\/\" data-internallinksmanager029f6b8e52c=\"6\" title=\"Anime || Manga\" target=\"_blank\" rel=\"noopener\">Manga<\/a>nese Oxide (LMO), Lithium Titanium Oxide (LTO), Nickel Cobalt Aluminum Oxide (NCA), and Nickel Manganese Cobalt Oxide (NMC).<\/p>\n<p>These battery cells were calendar aged in temperature chambers at 50, 60, and 70 degrees Celsius, using high, medium, and low voltages.<\/p>\n<p>To predict ageing, the team investigated the efficiency of two machine learning algorithms: Extreme Gradient Boosting (XGBoost) and an artificial neural network (ANN).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_do_the_algorithms_work\"><\/span><strong>How do the algorithms work?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Both algorithms were chosen for their ability to yield reliable results, but they differ significantly in their operation.<\/p>\n<p><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/en.wikipedia.org\/wiki\/XGBoost\">XGBoost<\/a> is a decision tree-based, state-of-the-art supervised machine learning algorithm that\u2019s widely used in regression or classification problems.<\/p>\n<p>The <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/en.wikipedia.org\/wiki\/Artificial_neural_network\">ANN<\/a> is an artificial adaptive system that uses its base elements, called neurons and connections, to transform its global inputs into a predicted output.<\/p>\n<p>To evaluate their performance, the researchers used the mean absolute percentage error (MAPE) metric, which measures the average magnitude of errors between predicted and measured values. Simply put, the smaller the MAPE value, the higher the prediction accuracy.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_did_the_results_show\"><\/span><strong>What did the results show?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The algorithms\u2019 testing\u00a0showed that XGBoost can be used to effectively predict the calendar ageing of most chemistries with significantly minimal mean absolute error. Meanwhile, ANN produces satisfactory results for only the LFP, LTO, and NCA cell chemistries.<\/p>\n<p>You can check out their accuracy in the graph below:<\/p>\n<figure class=\"post-image post-mediaBleed aligncenter\"><img loading=\"lazy\" class=\"size-full wp-image-1391207 js-lazy\" alt=\"Machine learning EV battery degradation\" width=\"993\" height=\"609\" sizes=\"auto, (max-width: 993px) 100vw, 993px\" https:=\"\" srcset=\"https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01.png 993w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-280x172.png 280w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-220x135.png 220w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-440x270.png 440w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-796x488.png 796w\"\/><figcaption><a rel=\"nofollow noopener\" target=\"_blank\" href=\"#\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Feditorial.thenextweb.com%2Fshift%2F2022%2F09%2F02%2Fresearchers-train-ai-predict-ev-battery-degradation%2F&amp;via=thenextweb&amp;related=thenextweb&amp;text=Check out this picture on: Comparison of the accuracy of ANN and XGB, based on how low the MAPE value is. Credit: B. Celen et al.\" data-title=\"Share Comparison of the accuracy of ANN and XGB, based on how low the MAPE value is. Credit: B. Celen et al. on Twitter\" data-width=\"685\" data-height=\"500\" class=\"post-image-share popitup\" title=\"Share Comparison of the accuracy of ANN and XGB, based on how low the MAPE value is. Credit: B. Celen et al. on Twitter\"><i class=\"icon icon--inline icon--twitter--dark\"\/><\/a>Comparison of the accuracy of ANN and XGB, based on how low the MAPE value is. Credit: B. Celen et al.<\/figcaption><noscript><img loading=\"lazy\" class=\"size-full wp-image-1391207\" https:=\"\" alt=\"Machine learning EV battery degradation\" width=\"993\" height=\"609\" srcset=\"https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01.png 993w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-280x172.png 280w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-220x135.png 220w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-440x270.png 440w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Screen-Shot-2022-09-02-at-15.46.01-796x488.png 796w\"\/><\/noscript><\/figure>\n<p>XGB\u2019s overall superior performance, and in particular regarding<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nature.com\/articles\/s43246-020-00095-x\"> battery chemistries that dominate the automotive industry<\/a> (NCA, NMC, LFP), shows it could be incorporated into EV battery <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>lication softwares to successfully predict calendar ageing effects and provide better operation life to electric vehicle batteries.<\/p>\n<p>It now remains to be seen which steps need to be taken to turn the research findings into commercial applications.<\/p>\n<p>You can find the full research<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/open-research-europe.ec.europa.eu\/articles\/2-96\"> here<\/a>.\n                        <\/div>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/technology\/\" target=\"_blank\" rel=\"noopener\">Technology category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/thenextweb.com\/news\/researchers-train-ai-predict-ev-battery-degradation\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Researchers train AI to predict EV battery degradation&#8221; Lithium-ion batteries have become a key component in the rise of electric mobility, but forecasting their health and lifespans is limiting the technology. While they\u2019ve proven successful, the capacity of lithium-ion batteries degrades over time, and not just because of the ageing process that occurs during charging&#8230;<\/p>\n","protected":false},"author":1,"featured_media":489841,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img-cdn.tnwcdn.com\/image\/shift?filter_last=1&fit=1280,640&url=https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2022\/09\/Untitled-design-95.jpg&signature=88e8395624ea78e8d593bb91359998cc","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-489840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/489840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=489840"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/489840\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/489841"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=489840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=489840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=489840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}