{"681232":{"#nid":"681232","#data":{"type":"external_news","title":"Researchers tore down Tesla\u0027s and BYD\u0027s batteries","body":[{"value":"\u003Cdiv\u003E\u003Cp\u003EToday\u2019s electric vehicles (EVs) mainly use batteries with cathodes made of lithium nickel manganese cobalt oxide (NMC) or \u003Ca href=\u0022https:\/\/cen.acs.org\/energy\/energy-storage-\/China-threatens-stop-export-iron\/103\/web\/2025\/01\u0022\u003Elithium iron phosphate\u003C\/a\u003E (LFP). Tesla and BYD, the \u003Ca href=\u0022https:\/\/www.washingtonpost.com\/climate-solutions\/2025\/01\/19\/byd-tesla-biggest-ev-manufacturer\/\u0022\u003Eworld\u2019s largest EV companies\u003C\/a\u003E, have each adopted one of these chemistries. Chinese carmaker BYD uses LFP batteries, and Tesla chose NMC.\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003ETo determine how the two rivals\u2019 batteries stack up against each other, a team of engineers and materials scientists in Germany took apart one cell from each company\u2019s battery pack, which contain dozens of cells (\u003Cem\u003ECell Rep. Phys. Sci.\u003C\/em\u003E 2025, DOI: \u003Ca href=\u0022https:\/\/doi.org\/10.1016\/j.xcrp.2025.102453\u0022\u003E10.1016\/j.xcrp.2025.102453\u003C\/a\u003E). The cells\u2019 materials and designs held some surprises.\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EEV makers guard battery technology tightly. But engineering firms regularly disassemble batteries to peek at their innards. Battery engineers \u003Ca href=\u0022https:\/\/www.pem.rwth-aachen.de\/cms\/pem\/der-lehrstuhl\/mitarbeiter\/~feew\/mitarbeiter-campus-\/?gguid=PER-G8P46AT\u0026amp;lidx=1\u0022\u003EJonas Gorsch\u003C\/a\u003E and \u003Ca href=\u0022https:\/\/www.pem.rwth-aachen.de\/cms\/pem\/der-lehrstuhl\/lehrstuhlleitung\/oberingenieure\/~bccxga\/moritz-frieges\/?allou=1\u0026amp;lidx=1\u0022\u003EMoritz Frieges\u003C\/a\u003E of RWTH Aachen University and their colleagues took a scientific sledgehammer to Tesla and BYD battery cells and did a detailed side-by-side analysis of materials composition, thermal and electrical performance, and mechanical design. \u201cMost teardowns focus on some specific aspect,\u201d Gorsch says. \u201cWe wanted a holistic comparison.\u201d\u003C\/p\u003E\u003C\/div\u003E\u003Cdiv\u003E\u003Cp\u003EThis is the type of research that \u201chelps researchers keep abreast of what\u2019s happening commercially so they can target their early-stage R\u0026amp;D decisions appropriately,\u201d says \u003Ca href=\u0022https:\/\/chbe.gatech.edu\/directory\/person\/micah-s-ziegler\u0022\u003EMicah S. Ziegler\u003C\/a\u003E, who studies energy technology innovation at the Georgia Institute of Technology and was not involved in the work.\u003C\/p\u003E\u003C\/div\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cdiv\u003E\u003Cp\u003EThis is the type of research that \u201chelps researchers keep abreast of what\u2019s happening commercially so they can target their early-stage R\u0026amp;D decisions appropriately,\u201d says \u003Ca href=\u0022https:\/\/chbe.gatech.edu\/directory\/person\/micah-s-ziegler\u0022\u003EMicah S. Ziegler\u003C\/a\u003E, who studies energy technology innovation at the Georgia Institute of Technology and was not involved in the work.\u003C\/p\u003E\u003C\/div\u003E","format":"limited_html"}],"field_summary_sentence":"","uid":"36413","created_gmt":"2025-03-19 17:09:56","changed_gmt":"2025-03-19 17:11:07","author":"pdevarajan3","boilerplate_text":"","field_publication":"","publication":"Chemical and Engineering News","field_article_url":"","publication_url":"https:\/\/cen.acs.org\/energy\/energy-storage-\/Researchers-tore-down-Teslas-BYDs\/103\/web\/2025\/03","dateline":{"date":"2025-03-06T00:00:00-05:00","iso_date":"2025-03-06T00:00:00-05:00","tz":"America\/New_York"},"extras":[],"hg_media":{"676607":{"id":"676607","type":"image","title":"39690-batteries-micahziegler.jpeg","body":"\u003Cp\u003EA Tesla battery pack contains hundreds of cylindrical nickel-manganese-cobalt cells. Credit: Getty Images\u003C\/p\u003E","created":"1742404203","gmt_created":"2025-03-19 17:10:03","changed":"1742404203","gmt_changed":"2025-03-19 17:10:03","alt":"A Tesla battery pack contains hundreds of cylindrical nickel-manganese-cobalt cells Credit: Getty images","file":{"fid":"260415","name":"39690-batteries-micahziegler.jpeg","image_path":"\/sites\/default\/files\/2025\/03\/19\/39690-batteries-micahziegler.jpeg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2025\/03\/19\/39690-batteries-micahziegler.jpeg","mime":"image\/jpeg","size":139437,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2025\/03\/19\/39690-batteries-micahziegler.jpeg?itok=6nzK8MWF"}}},"media_ids":["676607"],"groups":[{"id":"367481","name":"SEI Energy"}],"categories":[{"id":"144","name":"Energy"}],"keywords":[{"id":"188853","name":"go-seiinthenews"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}