Jeff Dahn y su equipo, que llevan a cabo la investigaci\u00f3n de bater\u00edas para Tesla, han publicado los resultados de las pruebas de una nueva c\u00e9lula de bater\u00eda que podr\u00eda tener una vida \u00fatil de 1 mill\u00f3n de millas (1,6 millones de km) y, por tanto, ser adecuada para los robotaxis previstos por Tesla. Al mismo tiempo, la fabricaci\u00f3n de c\u00e9lulas de bater\u00eda de Tesla parece estar muy avanzada.<\/p>\n
+ + Por favor, vea nuestra actualizaci\u00f3n a continuaci\u00f3n + +<\/p>\n
Incluso a 40 grados Celsius, se espera que estas nuevas c\u00e9lulas con qu\u00edmica NMC y un nuevo electrolito avanzado completen 4.000 ciclos. \"En este LiNi0.5<\/sub>Mn0.3<\/sub>Co0.2<\/sub>O2<\/sub>\/grafito, incluidos los que pueden favorecer la carga r\u00e1pida\", dice el informe de investigaci\u00f3n. \"Las razones de la degradaci\u00f3n del rendimiento de las c\u00e9lulas y el crecimiento de la impedancia se examinan utilizando varios m\u00e9todos. Llegamos a la conclusi\u00f3n de que las c\u00e9lulas de este tipo deber\u00edan poder alimentar un veh\u00edculo el\u00e9ctrico durante m\u00e1s de 1,6 millones de kil\u00f3metros (1 mill\u00f3n de millas) y durar al menos dos d\u00e9cadas en el almacenamiento de energ\u00eda en red.\"<\/p>\n Queda por ver c\u00f3mo se refrigeraron las celdas durante las pruebas y qu\u00e9 efecto tendr\u00eda sobre ellas un paquete de bater\u00edas refrigerado por l\u00edquido en un coche el\u00e9ctrico. Sin embargo, parece claro que una vida \u00fatil de este tipo tambi\u00e9n podr\u00eda alcanzar el objetivo de rendimiento fijado por Elon Musk para los taxis Tesla autoconducidos. Seg\u00fan Musk, una flota de robo taxis debe tener una vida \u00fatil especialmente larga para poder funcionar de forma econ\u00f3mica.<\/p>","protected":false},"excerpt":{"rendered":" Jeff Dahn y su equipo, que realizan investigaciones sobre bater\u00edas para Tesla, han publicado los resultados de las pruebas de una nueva c\u00e9lula de bater\u00eda que podr\u00eda tener una vida \u00fatil de<\/p>","protected":false},"author":24,"featured_media":93271,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[29835,9927],"tags":[11904,10230,13682,10914,9940,13591,1766,13503,6913,8529,398,18514,509,609],"class_list":["post-118725","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-autonomous-driving","category-battery-fuel-cell","tag-autonomous-driving","tag-batteries","tag-battery-cells","tag-battery-production","tag-california","tag-career","tag-colorado","tag-electric-shuttles","tag-fremont","tag-jeff-dahn","tag-panasonic","tag-robo-taxis","tag-tesla","tag-usa"],"acf":{"inhalt_teil2":" In the research report, Dahn, who recently expressed scepticism about solid electrolytes, explicitly mentions robo taxis: “Clearly EVs destined for vehicle-to-grid applications, robo taxis or long haul trucking, would favour a lithium-ion chemistry that could deliver many more charge-discharge cycles in a decade than an EV that was destined for typical commuter driving where high energy density to give the longest driving range for weekend trips might be emphasised.”<\/p>\n It is still unclear when such cells will be ready for series production. Tesla is therefore likely to produce even more conventional Li-Ion cells first, provided that the rumours about Tesla battery cell production<\/a> will check out. In June this year, insiders described the existence of some kind of secret Tesla battery laboratory. The rumours were fuelled by a report by US broadcaster, CNBC<\/em> that cites five former and current employees describing a battery laboratory a few minutes away from the Fremont car plant in California. It seems that intensive work is underway to develop improved lithium-ion cells. With technology gained through acquiring Maxwell Technologies<\/a>, in future, Tesla could produce its own battery cells instead of relying exclusively on Panasonic.<\/p>\n At the ‘Battery Day’ coming up in autumn, Tesla wants to provide more information about “cell chemistry, modules and packs as well as a production plan with a clear timetable up to one terawatt hour per year,” according to Musk.<\/p>\n It seems Tesla is already looking for employees for battery cell production in Fremont, California, and also in Colorado. The job ad for a Manufacturing Technician in Cell Manufacturing says: “We are looking for an Engineering Technician to assist anode development and optimization R&D. Candidates should be familiar with Li-ion cell chemistry and have experience building and assembling cells for performance testing.” One of the jobs will be located in Fremont. But the advertisement cleverly does not specify if the plant is located there \u2013 Tesla also operates some other sites in the area. Another job is offered in Broomfield, Colorado, but so far nothing was known about a Tesla research site there.<\/p>\n Update 16 September 2019: electrek.co<\/a> (research), electrek.co<\/a> (production), electrek.co<\/a> (update)<\/p>\n"},"_links":{"self":[{"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/posts\/118725","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/comments?post=118725"}],"version-history":[{"count":1,"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/posts\/118725\/revisions"}],"predecessor-version":[{"id":282998,"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/posts\/118725\/revisions\/282998"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/media\/93271"}],"wp:attachment":[{"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/media?parent=118725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/categories?post=118725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electrive.com\/es\/wp-json\/wp\/v2\/tags?post=118725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n<\/strong>Tesla has just filed a new patent for a new, more durable battery cell that should also be cheaper to produce. Jeff Dahn and his team are listed as inventors. The cell uses two additives in the electrolyte, vinylene carbonate (VC) combined with 1,2,6-oxodithiane-2,2,6,6-tetraoxide, in order to boost the performance of the cell. The new cells with NMC chemistry are supposed to offer a service life of more than 1.6 million kilometres.<\/p>\n