Stanford: Peb tau txo qhov hnyav ntawm cov khoom siv tam sim no hauv lithium-ion hlwb los ntawm 80 feem pua. Lub zog ceev nce 16-26 feem pua. -AvtoTachki

Cov kws tshawb fawb ntawm Stanford University thiab Stanford Linear Accelerator Center (SLAC) tau txiav txim siab txo cov lithium-ion hlwb kom txo lawv qhov hnyav thiab yog li ua kom lub zog khaws cia ceev. Ua li no, lawv tau rov ua dua cov txheej txheem thauj khoom sab nraud: tsis yog cov nplooj ntawv dav ntawm tooj liab lossis txhuas, lawv siv cov hlau nqaim nqaim, ntxiv rau txheej txheej ntawm polymer.

Ntau zog ceev nyob rau hauv Li-ion tsis muaj nqi peev

Txhua lithium-ion ntawm tes yog ib yob uas muaj cov txheej txheem them nqi / tso tawm, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab cov khoom siv tam sim no. Cov sab nrauv yog cov ntawv hlau ua los ntawm tooj liab lossis txhuas. Lawv cia cov electrons tawm mus thiab rov qab mus rau lub cell.

Cov kws tshawb fawb los ntawm Stanford thiab SLAC tau txiav txim siab tsom mus rau cov neeg sau khoom, vim tias lawv qhov hnyav feem ntau yog ntau kaum ntawm feem pua ntawm qhov hnyav ntawm tag nrho cov txuas. Hloov cov nplooj ntawv tooj liab, lawv siv cov yeeb yaj kiab polymer nrog nqaim tooj liab strips. Nws tau muab tawm tias nws tuaj yeem txo qhov hnyav ntawm cov neeg sau los ntawm 80 feem pua:

Classic cylindrical lithium-ion cell yog ib lub yob ntev uas muaj ob peb txheej. Cov kws tshawb fawb los ntawm Stanford thiab SLAC tau txo qis cov khaubncaws sab nraud povtseg uas sau cov nqi thiab coj lawv - cov neeg sau tam sim no. Hloov cov nplooj ntawv tooj liab, lawv siv cov nplooj ntawv polymer-tooj liab uas muaj cov tshuaj tsis-flammable (c) Yusheng E / Stanford University

Tsis yog txhua yam: cov tshuaj sib xyaw ua ke tuaj yeem ntxiv rau cov polymer uas tiv thaiv qhov hluav taws kub, thiab tom qab ntawd cov nplaim hluav taws xob qis ntawm cov ntsiab lus yog nrog los ntawm qhov hnyav dua:

Stanford: Peb tau txo qhov hnyav ntawm lithium-ion pantographs los ntawm 80 feem pua. Lub zog ceev nce 16-26 feem pua.

Flammability ntawm tooj liab ntawv ci siv nyob rau hauv classic lithium-ion cell thiab ib tug collector tsim los ntawm American cov kws tshawb fawb (c) Yusheng E / Stanford University

Cov kws tshawb fawb hais tias cov khoom siv rov ua dua tuaj yeem ua kom lub zog gravimetric ceev ntawm cov hlwb los ntawm 16-26 feem pua (= 16-26 feem pua ntau zog rau tib chav tsev ntawm pawg). Nws txhais tau tias lub roj teeb ntawm tib qhov loj thiab lub zog ceev tuaj yeem yog 20 feem pua tshaj dua li tam sim no.

Kev sim tau ua yav dhau los los ua kom zoo rau lub pas dej, tab sis kev hloov pauv tau ua rau muaj kev phom sij tsis txaus ntseeg. Cov hlwb ua tsis ruaj khov lossis ntau dua [kim] electrolyte yuav tsum tau. Qhov sib txawv tsim los ntawm cov kws tshawb fawb ntawm Stanford tsis tshwm sim ua rau muaj teeb meem zoo li no.

Cov kev txhim kho no yog nyob rau hauv kev tshawb fawb thaum ntxov, yog li tsis txhob cia siab tias lawv yuav ntaus lub lag luam ua ntej 2023. Txawm li cas los xij, lawv zoo li pheej hmoo.

Nws yuav tsum tau ntxiv tias Tesla kuj muaj lub tswv yim nthuav los sau cov nqi ntawm cov txheej hlau. Es tsis txhob siv nyias tooj liab strips raws tag nrho ntev ntawm lub yob thiab coj lawv tawm nyob rau hauv ib qho chaw (hauv nruab nrab), nws tam sim ntawd coj lawv tawm siv lub overlapped txiav ntug. Qhov no ua rau cov nqi txav mus deb me me (kuj!), thiab tooj liab muab cov cua sov ntxiv rau sab nraud:

Stanford: Peb tau txo qhov hnyav ntawm lithium-ion pantographs los ntawm 80 feem pua. Lub zog ceev nce 16-26 feem pua.