Lub lim tiam tshiab thiab roj teeb tshiab: LeydenJar muaj silicon anodes thiab 170 feem pua ​​​​ roj teeb. tam sim no

Lub tuam txhab Dutch LeydenJar (Polish Leyden lub raj mis) tau khav theeb ntawm kev tsim cov khoom siv-npaj silicon anode rau lithium-ion hlwb. Ua tsaug rau qhov no, lub peev xwm ntawm tes tuaj yeem nce mus txog 70 feem pua ​​​​piv rau cov qauv kev daws teeb meem nrog graphite anodes.

Silicon es tsis txhob graphite hauv anodes yog qhov zoo dua, tab sis qhov nyuaj.

Cov txheej txheem

• Silicon es tsis txhob graphite hauv anodes yog qhov zoo dua, tab sis qhov nyuaj.
  • LeydenJar: Thiab peb stabilized silicon, ha!
  • Qhov teeb meem Endurance tseem nyob

Silicon thiab carbon belongs rau tib pawg ntawm cov ntsiab lus: carbon ntsiab. Cov pa roj carbon nyob rau hauv daim ntawv ntawm graphite yog siv nyob rau hauv lub anodes ntawm lithium-ion hlwb, tab sis ib txoj kev tau ntev tau nrhiav los hloov nws nrog ib tug pheej yig dua thiab pheej yig dua - silicon. Silicon atoms tsim ib qho xoob thiab ntxeem tau ntau dua. Thiab qhov ntxeem tau ntau dua ntawm cov qauv, qhov loj dua qhov sib piv ntawm qhov sib txawv ntawm qhov sib txawv, qhov ntau qhov chaw uas lithium ions tuaj yeem txuas tau.

Ntau qhov chaw rau lithium ions txhais tau tias muaj peev xwm ntau dua. Ntawd yog, lub roj teeb loj dua uas siv cov anode zoo li no.

Theoretical xam qhia tias silicon anode tuaj yeem khaws kaum zaug (10 zaug!) ntau lithium ions dua li graphite anode. Txawm li cas los xij, qhov no los ntawm tus nqi: thaum graphite anodes nthuav me ntsis thaum lub sijhawm them nyiaj, tus nqi silicon anode tuaj yeem swell mus txog peb zaug (300 feem pua)!

Cov nyhuv? Cov khoom siv crumbles, qhov txuas sai sai poob nws lub peev xwm. Hauv ib lo lus: nws tuaj yeem muab pov tseg.

LeydenJar: Thiab peb stabilized silicon, ha!

Tshaj li kaum xyoo dhau los, nws tau dhau los ua ib feem augment graphite nrog silicon kom rov qab tau tsawg kawg yog ob peb feem pua ​​​​ntawm lub zog ntxiv. Cov tshuab zoo li no tau ruaj khov nrog ntau yam nanostructures kom cov nyhuv ntawm silicon daim phiaj kev loj hlob tsis ua rau lub hlwb. LeydenJar hais tias nws tau tsim ib txoj hauv kev siv anodes ua los ntawm silicon nkaus xwb.

Lub tuam txhab tau sim silicon anodes hauv cov khoom lag luam muag, piv txwv li nrog NMC 622 cathodes. Lub zog tshwj xeeb 1,35 kWh/lThaum lub 2170 hlwb siv nyob rau hauv Tesla Model 3 / Y muab ib ncig ntawm 0,71 kWh / L. LeydenJar hais tias lub zog ceev yog 70 feem pua ​​​​siab dua, txhais tau hais tias lub roj teeb ntawm qee qhov loj tuaj yeem khaws 70 feem pua ​​​​ntawm lub zog ntau dua.

Txhais qhov no rau Tesla Model 3 Ntev Range: es tsis txhob ntawm 450 kilometers tiag tiag, lub davhlau ntau tuaj yeem ncav cuag 765 mais ntawm ib qho nqi.. Tsis muaj roj teeb upgrade.

Qhov teeb meem Endurance tseem nyob

Hmoov tsis zoo, silicon anode raws li LeydenJars tsis zoo tag nrho. Lawv muaj peev xwm ciaj sia ntau tshaj 100 lub voj voog ua haujlwm в them / tawm fais fab 0,5C. Cov txheej txheem kev lag luam yog tsawg kawg yog 500 lub voj voog, thiab ntawm 0,5 ° C, txawm tias tsis muaj teeb meem lithium-ion hlwb yuav tsum tiv taus 800 cycles lossis ntau dua. Yog li ntawd, lub tuam txhab ua hauj lwm los ua kom lub neej ntawm cov hlwb.

> Samsung SDI nrog lithium-ion roj teeb: hnub no graphite, silicon sai sai, sai lithium hlau hlwb thiab ntau yam ntawm 360-420 km hauv BMW i3

Editor's note www.elektrowoz.pl: Thaum peb tham txog silicon thiab graphite hauv lithium-ion hlwb, peb tab tom tham txog anodes. Ntawm qhov tod tes, thaum peb hais txog NMC, NCA lossis LFP, qee zaum siv cov kab lus "cell chemistry", peb hais txog cathodes. Lub cell yog anode, cathode, electrolyte thiab lwm yam khoom. Txhua tus ntawm lawv cuam tshuam cov kev txwv.

Editorial Note 2 www.elektrowoz.pl: Cov txheej txheem ntawm o ntawm silicon anodes yuav tsum tsis txhob tsis meej pem nrog o ntawm cov hlwb hauv hnab. Qhov tom kawg o vim cov roj tso tawm sab hauv, uas tsis tuaj yeem tawm ntawm sab hauv.

Intro yees duab: xuas nrig ntaus ib yam 😉 (c) LeydenJar. Muab cov ntsiab lus, peb yog tej zaum xa mus rau silicon anode. Txawm li cas los xij, yog tias koj them sai sai rau qhov muag muag ntawm cov khoom siv (nws khoov, nws tuaj yeem txiav nrog scalpel), ces peb tab tom soj ntsuam nrog qee cov silicones, silicon-based polymers. Uas nyob rau hauv nws tus kheej yog intriguing.

Qhov no yuav txaus siab rau koj: