Me yasa Tesla ya dage akan amfani da cobalt lithium?

Batirin Tesla yana daya daga cikin abubuwan da ake amfani da su na motocin lantarki. An yi ta izgili da izgili a zamanin farko. Ko da bayan an sayar da abubuwan fashewar, masana masana’antu da yawa sun kira fasahar batir da ba ta dace ba tare da rashin tabbas. Wannan shi ne saboda Tesla ne kawai kamfani da ke amfani da batura 18650 lithium-cobalt-ion, waɗanda aka saba amfani da su a cikin kwamfutocin littafin rubutu kuma ba su da kyan gani kamar motocin lantarki kuma suna haifar da haɗari na aminci. gaskiya ne?

A cewar rahoton, tasirin batura a kan motocin lantarki a bayyane yake ta fuskar wutar lantarki. Iron phosphate a halin yanzu shine zaɓi na farko a kasuwa, kamar Chevrolet Volt, Nissan Leaf, BYD E6 da FiskerKarma, saboda amincin su, aminci da lokutan caji.

Tesla ita ce mota ta farko da ta fara amfani da batirin lithium cobalt ion

Motocin wasanni da samfuran Tesla suna da ƙarfin batir lithium cobalt oxide 18650. Idan aka kwatanta da lithium baƙin ƙarfe batura phosphate, wannan baturi yana da mafi rikitarwa tsari, babban iko, high yawan makamashi, da kuma high daidaito, amma yana da low aminci factor, matalauta thermoelectric halaye, kuma in mun gwada da tsada tsada.

A cewar masana masana’antu, ƙarfin wutar lantarki koyaushe yana ƙasa da 2.7V ko sama da 3.3V, kuma alamun zafi zai bayyana. Idan fakitin baturi yana da girma kuma yanayin zafin jiki ba a sarrafa shi da kyau, akwai haɗarin wuta. Ba abin mamaki ba ne aka soki Tesla da rashin dogaro da fasahar batir, saboda fasahar batir ta fi mayar da hankali ne kan wutar lantarki, na yanzu, da kuma kula da yanayin zafi.

Koyaya, a aikace, ana ɗaukar batir phosphate na lithium-ion baƙin ƙarfe mafi aminci kuma mafi aminci, amma ba koyaushe ake samun su ba. A cikin tsarin shirye-shiryen, ana iya rage baƙin ƙarfe oxide zuwa ƙarfe na farko a yanayin zafi. Ƙarfe mai sauƙi zai haifar da ƙananan ƙananan baturi, wanda aka hana. Bugu da kari, a aikace, caji da kuma fitar da masu lankwasa na batir phosphate na lithium baƙin ƙarfe sun bambanta sosai, daidaiton ba shi da kyau, kuma ƙarancin kuzari yana da ƙasa, wanda kai tsaye yana shafar rayuwar batir na motocin lantarki. Dangane da rahoton bincike na baya-bayan nan na Haitong International Securities, yawan kuzarin batirin Tesla (170Wh/kg) ya kai kusan ninki biyu na batirin lithium-ion iron phosphate na BYD.

Ms. Whittingham ta Jami’ar Huntington da ke Burtaniya ta kera batura 18650 na kwamfutar tafi-da-gidanka, fitilu da sauran na’urorin dijital tun a shekarun 1970, amma Tesla shi ne kamfani na farko da ya yi amfani da diamita 18mm da tsayin 65mm a mota. Cylindrical lithium baturi kamfanin.

Darektan fasahar batir na Tesla, Kirt Kady, ta ce a wata hira da aka yi da ita a baya cewa Tesla ya kuma gwada nau’ikan batura daban-daban guda 300 a kasuwa, wadanda suka hada da batura masu fadi da batura masu murabba’i, amma ya zabi Panasonic’s 18650. A gefe guda, 18650 yana da yawan kuzarin makamashi. ya fi kwanciyar hankali da daidaito. A gefe guda, ana iya amfani da 18650 don rage farashin tsarin baturi. Bugu da kari, ko da yake ma’aunin kowane baturi kadan ne, ana iya sarrafa makamashin kowane baturi a cikin karamin kewayo. Ko da akwai lahani a cikin fakitin baturi, ana iya rage tasirin lahani idan aka kwatanta da amfani da babban baturi. Bugu da kari, kasar Sin na samar da batura 18,650 a duk shekara, kuma ana samun ci gaba a fannin tsaro.

Batirin Lithium NCR18650 babban baturi ne mai ƙarfi tare da ƙarancin ƙarfin lantarki na 3.6V, ƙaramin ƙarami na 2750mA, da girman ɓangaren 45.5g. Bugu da ƙari, ƙarfin makamashi na 18650 da aka yi amfani da shi a cikin na biyu na Tesla na Model S shine 30% mafi girma fiye da na motar wasanni na baya.

Babban jami’in fasaha na Tesla JBStraubel ya ce tun lokacin da aka kaddamar da motar wasanni ta Model S, farashin batir ya ragu da kusan 44% kuma zai ci gaba da faduwa. A cikin 2010, Panasonic ya ba da gudummawar dala miliyan 30 ga Tesla a matsayin mai hannun jari. A cikin 2011, bangarorin biyu sun cimma yarjejeniya mai mahimmanci don samar da batura ga dukkan motocin Tesla a cikin shekaru biyar masu zuwa. Tesla a halin yanzu ya kiyasta cewa za a shigar da Panasonic 18650 a cikin nau’ikan 80,000.

6831 batirin lithium an sake daidaita su ta hanyar mu’ujiza

Ta yaya Tesla ke magance haɗarin aminci na 18650? Makamin sirrinsa yana cikin tsarin sarrafa batir ɗin sa, wanda ke ba da mafita don haɗa 68312 amp Panasonic 18650 fakitin batura a jere kuma a layi daya.

Motar lantarki tana buƙatar batura 18,650. Tsarin baturi na Tesla Roadster ya ƙunshi ƙananan ƙwayoyin baturi 6,831, kuma Model s yana da adadin ƙwayoyin baturi 8,000. Yadda ake sanyawa da haɗa waɗannan manyan lambobi na ƙananan batura yana da mahimmanci musamman.