Tesla akufunsira patent yama cell atsopano a NMC. Mamiliyoni a kilomita amayendetsedwa ndikuwonongeka kochepa

Tesla Canada yafunsira ma cell atsopano okhala ndi ma cathodes a NMC (Nickel-Manganese-Cobalt). Zikuwoneka ngati izi ndi zinthu zomwezo zomwe labu ya Jeff Dunn idapangira wopanga, ndipo imalola kuti iyende mtunda wamakilomita mamiliyoni osavala pang'ono.

Tesla achoka ku NCA kupita ku NMC?

Tesla panopa amagwiritsa lifiyamu-ion maselo ndi cathodes NCA, mwachitsanzo faifi tambala-cobalt-zotayidwa, ndi zosakwana 10 peresenti cobalt okhutira, osachepera Tesla Model 3. Chodabwitsa ichi palokha, chifukwa mu maselo abwino amakono NMC811 10 peresenti cobalt cathodes amagwiritsidwa ntchito - koma amayamba kugwira ntchito pang'onopang'ono, ndikuchotsa zinthu za NMC622.

> Ma cell 2170 (21700) mu mabatire a Tesla 3 kuposa NMC 811 mu _future_

Monga Elon Musk adalonjeza, Tesla yamakono iyenera kuyenda kuchokera ku 0,48 mpaka makilomita 0,8 miliyoni pa batri. Komabe, posachedwapa, akufuna kuyendetsa makilomita 1,6 miliyoni pa mphamvu ya batri - izi ndi zomwe thupi ndi powertrain ya Tesla Model 3 iyenera kuthandizira.

Ndipo apa amathandizidwa ndi zomwe zachitika mu labotale ya Jeff Dunn, yomwe idagwira ntchito kwa Tesla kwakanthawi komanso yomwe mu Seputembala 2019 idadzitamandira ndi mankhwala atsopano a ma electrolyte a ma cell a lithiamu-ion okhala ndi NMC532 cathodes.

Chifukwa chogwiritsa ntchito cathode ya "crystal single" ndi electrolyte yokhala ndi zowonjezera zomwe zimagwiritsidwa ntchito pano zomwe zimalimbikitsidwa ndi dioxazolones ndi nitriles ya ester ya sulfite, kutengera kapangidwe ka electrolyte (gwero), zinali zotheka kukwaniritsa izi:

• kuchepa kwapang'onopang'ono kwa maselo chifukwa cha kulepheretsa kukula kwa passivation layer (SEI), yomwe imamanga ma lithiamu ayoni, omwe amayang'anira mwachindunji mphamvu,
• Kuchuluka kwa maselo kutengera kutentha.

A) chithunzi chochepa kwambiri cha NMC 532 powder B) chithunzi chochepa kwambiri cha electrode pamwamba pambuyo pa kupanikizika, C) imodzi mwa maselo oyesedwa 402035 mu sachet pafupi ndi ndalama za dollar ziwiri za ku Canada, PASI, chithunzi kumanzere) kuwonongeka kwa maselo oyesedwa. poyerekeza ndi kumbuyo kwa ma cell achitsanzo, PASI, chithunzi chakumanja) moyo wa cell ndi kutentha panthawi yolipiritsa (c) Jesse E. Harlow et al. / Journal of the Electrochemical Society

Izi zonse zikuwoneka zovuta, koma zotsatira zake ndi zodabwitsa:

• 70 peresenti ya mphamvu pambuyo pa maulendo atatu oyendetsa pa madigiri 3 (pafupifupi makilomita 650 miliyoni),
• mpaka 90 peresenti mphamvu pambuyo pa 3 miliyoni kilomitangati kutentha kwa selo kunkasungidwa pa madigiri 20 Celsius ndipo kulipiritsa kunkachitika pa 1 ° C (1x mphamvu ya batri, i.e. 40 kW ndi batire ya 40 kWh, 100 kW ndi batire ya 100 kWh, etc.).

Sizikudziwika ngati pempho loyembekezera likutanthauza kuti Tesla adzasamutsa NCA kupita ku NCM. Pakadali pano, zanenedwa mosavomerezeka kuti ma cell a lithiamu-ion a NCM akuyenera kuwoneka mumitundu yopangidwa ku China.

> Asphalt (!) Idzawonjezera mphamvu ndikufulumizitsa kuthamangitsidwa kwa mabatire a lithiamu-ion.

Komabe, ndizotetezeka kunena kuti wopanga waku California ndi wokonzeka kupereka ma patent ake. Mwa kusindikiza mapepala pazowonjezera zatsopano za electrolyte, angafune kufulumizitsa ntchito yapadziko lonse pa maselo a lithiamu a m'badwo wotsatira.

Nayi ntchito yonse ya Tesla patent (tsitsani PDF PANO):

Chidziwitso kuchokera kwa akonzi a www.elektrowoz.pl: pokonza mutuwu, tidawona kuti kupanga galimoto yamagetsi yaku Poland kungakhale kokwera mtengo KWAMBIRI. Sitinathe kupeza kutchulidwa kulikonse kwa dioxazolones ndi sulfite ester nitriles pa intaneti yaku Poland. Izi zikutanthauza kuti mwina palibe munthu ku Poland yemwe angamvetse kagwiritsidwe ntchito ka patent ndi mfundo zake. Tili ndi ma PhD ambiri polemba, kutsatsa, philology ndi mbiri, koma kupita patsogolo kwenikweni kukuchitika kwina, pomwe pano, pamaso pathu.

Izi zingakusangalatseni: