Lub roj teeb kub kub yog dab tsi? Qhov zoo thiab kev ua haujlwm ntawm cov roj teeb lithium kub qis

Ntau tus phooj ywg yuav muaj lus nug thaum lawv hnov ​​​​thawj thawj cov tshuaj tiv thaiv ntawm cov roj teeb uas muaj qhov kub thiab txias: Dab tsi yog lub roj teeb kub kub? Puas muaj kev siv?

Lub roj teeb kub kub yog dab tsi?

Lub roj teeb uas kub kub yog lub roj teeb tshwj xeeb uas tsim tshwj xeeb rau qhov tsis muaj qhov kub thiab txias uas tshwm sim hauv kev ua haujlwm ntawm cov khoom siv hluav taws xob. Cov roj teeb kub kub siv VGCF thiab activated carbon nrog rau thaj chaw tshwj xeeb ntawm (2000 ± 500)㎡ / gas additives, thiab nws phim cov khoom zoo thiab tsis zoo electrode. Cov electrolytes tshwj xeeb uas muaj cov tshuaj ntxiv tshwj xeeb yog txhaj tshuaj kom ntseeg tau tias qhov ntsuas kub qis ntawm cov roj teeb uas tsis kub kub. Nyob rau tib lub sijhawm, qhov kub thiab txias Lub ntim hloov pauv ntawm 24h ntawm 70 ℃ yog ≦0.5%, uas muaj kev nyab xeeb thiab cia ua haujlwm ntawm cov roj teeb lithium.

Cov roj teeb uas kub qis yog xa mus rau cov roj teeb lithium-ion uas nws qhov kev ua haujlwm kub qis dua -40 ° C. Lawv feem ntau yog siv rau hauv tub rog aerospace, cov khoom siv hauv tsheb, kev tshawb fawb thiab kev cawm, kev sib txuas lus hluav taws xob, kev nyab xeeb rau pej xeem, kev kho mob hluav taws xob, kev tsheb ciav hlau, nkoj, neeg hlau, thiab lwm yam. Cov roj teeb lithium kub qis yog cais raws li lawv qhov kev ua haujlwm tawm: lub zog cia, cov roj teeb lithium kub qis, thiab cov roj teeb lithium kub qis. Raws li daim ntawv thov teb, cov roj teeb lithium kub qis tau muab faib ua cov roj teeb lithium uas tsis kub rau kev siv tub rog thiab cov roj teeb lithium uas kub kub. Nws ib puag ncig kev siv tau muab faib ua peb pawg: cov roj teeb uas tsis kub ntawm pej xeem, cov roj teeb tshwj xeeb uas tsis muaj qhov kub thiab txias, thiab cov roj teeb hluav taws xob tsis zoo.

Daim ntawv thov ntawm cov roj teeb kub kub feem ntau suav nrog cov tub rog riam phom, aerospace, cov khoom siv tsheb thauj mus los, kev tshawb fawb txog keeb kwm yav dhau, kev cawm tsis tau, kev sib txuas lus hluav taws xob, kev nyab xeeb rau pej xeem, kev kho mob hluav taws xob, kev tsheb ciav hlau, nkoj, neeg hlau, thiab lwm yam.

Qhov zoo thiab kev ua haujlwm ntawm cov roj teeb lithium kub qis

Cov roj teeb lithium kub qis muaj qhov zoo ntawm lub teeb yuag, lub zog tshwj xeeb, thiab siv tau ntev thiab tau siv dav hauv ntau yam khoom siv hluav taws xob. Ntawm lawv, cov roj teeb uas tsis muaj hluav taws xob polymer lithium-ion kuj muaj qhov zoo ntawm kev ntim khoom yooj yim, yooj yim los hloov cov duab geometric ntawm cua daj cua dub, ultra-light thiab ultra-nyias, thiab muaj kev nyab xeeb siab. Nws tau dhau los ua lub zog rau ntau yam khoom siv hluav taws xob mobile.

Nws tsis tuaj yeem siv cov roj teeb zoo tib yam ntawm -20 ° C, thiab nws tseem tuaj yeem siv cov roj teeb lithium kub qis, feem ntau ntawm -50 ° C. Tam sim no, cov roj teeb uas kub qis feem ntau yog siv nyob rau hauv ib puag ncig ntawm ℃ lossis qis dua. Ntxiv nrog rau cov khoom siv hluav taws xob sib txuas lus, cov khoom siv hluav taws xob ua tub rog, cov khoom siv hluav taws xob teeb liab, thiab cov khoom siv hluav taws xob me me tsav cov khoom siv hluav taws xob kuj tseem yuav tsum tau siv cov roj teeb uas kub kub. Cov khoom siv hluav taws xob no kuj muaj qhov ntsuas kub qis thaum ua haujlwm hauv thaj chaw.

Kev tshawb nrhiav chaw xws li lub davhlau ya nyob twg thiab lub hli tsaws qhov kev pab cuam nyob rau hauv Suav teb kuj xav tau cov khoom siv hluav taws xob ua haujlwm siab, tshwj xeeb tshaj yog cov roj teeb lithium kub. Vim tias cov khoom siv kev sib txuas lus tub rog muaj kev txwv nruj dua ntawm cov yam ntxwv ntawm cov roj teeb, tshwj xeeb tshaj yog xav tau kev sib txuas lus lav ntawm qhov kub thiab txias. Yog li ntawd, kev txhim kho cov roj teeb lithium kub qis yog qhov tseem ceeb rau kev txhim kho cov tub rog thiab kev lag luam aerospace.

Cov roj teeb lithium kub qis tau siv dav vim lawv lub teeb yuag, lub zog tshwj xeeb, thiab lub neej ntev. Cov roj teeb lithium kub qis yog tsim los ntawm cov khoom siv tshwj xeeb thiab cov txheej txheem thiab tsim nyog siv rau hauv qhov chaw txias txias.

Cov kws ua haujlwm hauv University of California, San Diego, tau ua tiav qhov ntsuas kub qis lithium hlau phosphate lithium-ion fais fab roj teeb uas tuaj yeem tswj tau qhov kev ua tau zoo ntawm chav tsev kub ntawm qhov kub ntawm qhov kub tsis tshaj 60 ° C. Tam sim no, hom roj teeb uas muaj qhov kub thiab txias uas nws tuaj yeem tso rau hauv kev lag luam feem ntau suav nrog cov roj teeb lithium hlau phosphate thiab cov roj teeb polymer uas tsis kub kub lithium. Ob hom roj teeb hluav taws xob uas muaj hluav taws xob tsawg no yog cov paub tab.

Cov yam ntxwv ntawm qis-kub lithium hlau phosphate roj teeb

• Kev ua tau zoo ntawm qhov kub thiab txias: tso tawm ntawm 0.5C ntawm -40 ℃, qhov tso tawm muaj peev xwm tshaj 60% ntawm qhov pib tag nrho; ntawm -35 ℃, tawg ntawm 0.3C, qhov tso tawm muaj peev xwm tshaj 70% ntawm qhov pib tag nrho;
• Dav ua haujlwm kub ntau, -40 ℃ to 55 ℃;
• Qhov kub thiab txias lithium hlau phosphate roj teeb muaj 0.2c tawm mus kuaj nkhaus ntawm -20 ° C. Tom qab 300 lub voj voog, tseem muaj peev xwm tuav tau ntau dua 93%.
• Nws tuaj yeem tso tawm qhov nkhaus ntawm qhov kub thiab txias lithium hlau phosphate roj teeb ntawm qhov sib txawv ntawm -40 ° C txog 55 ° C.

Lub lithium hlau phosphate roj teeb uas kub kub yog ib lub tshuab tshiab tsim tom qab kev tshawb fawb ntev thiab kev tsim kho thiab kev sim. Exceptionally functional raw khoom yog ntxiv rau cov electrolyte. Cov ntaub ntawv raw khoom zoo heev thiab thev naus laus zis ua kom lub roj teeb muaj txiaj ntsig zoo ntawm qhov kub thiab txias. Lub roj teeb uas kub lithium hlau phosphate no tau siv dav hauv thaj chaw uas muaj qhov kub thiab txias xws li cov cuab yeej siv tub rog, kev lag luam aerospace, cov khoom siv dhia dej, kev tshawb fawb txog kev tshawb fawb, kev sib txuas lus hluav taws xob, kev ruaj ntseg pej xeem, kev kho mob hluav taws xob, thiab lwm yam.