Muaj ntau txoj kev xaiv rau cov khoom siv roj teeb rau cov tsheb hluav taws xob, xws li cov roj teeb lithium-state. Lub hli tas los, Harvard University nws tus kheej tau tsim lub roj teeb lithium roj teeb tshiab uas tuaj yeem them tag nrho hauv 3 feeb thiab muaj lub neej ua haujlwm ntau dua 10,000 zaug.
Niaj hnub no peb qhia lwm yam khoom tshwj xeeb -nickel ntawv nyiaj. Los ntawm kev ntxiv txheej nyias ntawm nickel hauv lub roj teeb, tus qauv hluav taws xob lub tsheb roj teeb tuaj yeem them tag nrho hauv li 10 feeb. Qhov no tuaj yeem muab kev lag luam ntau dua rau cov tsheb fais fab uas muaj ntau lub roj teeb kim kim.
Piv txwv li, thaum mus txawv tebchaws nyob rau hauv ib tug ntev-ntev hluav taws xob tsheb, lub roj teeb pob nrog ib tug roj teeb muaj peev xwm ntawm 120 kWh uas yuav siv sij hawm ib teev kom them tag nrho yuav tsum tau hloov los ntawm ib tug roj teeb pob uas muaj peev xwm ntawm 60 kWh uas siv sij hawm tsuas yog 10 feeb. kom them, thiab qhov ntau ntawm ob yog khaws cia. nyob ze heev.
Txoj kev tshawb no tau ua tiav los ntawm Chao-Yang Wang, Tus Kws Tshaj Lij Tshaj Lij ntawm Cov Khoom Siv thiab Engineering ntawm Pennsylvania State University, thiab ntau tus kws tshawb fawb, thiab tau tshaj tawm hauv Xwm thaum Lub Kaum Hli 12. Xib Fwb Wang Chaoyang yog tus kws tshaj lij thiab kws tshaj lij hauv kev lag luam roj hlwb. thiab cov roj teeb theem nrab thiab tau raug xaiv los ua tus kws tshaj lij ntawm National Academy of Inventors thaum Lub Kaum Ob Hlis 2019.
Cov kws tshawb fawb tau ua qhov kev sim ntawm lub roj teeb lithium-ion nrog lub zog ceev ntawm 265 Wh / kg uas muaj qhov sib txawv ntawm kwv yees li 560 mais ntawm tus nqi tag nrho. Los ntawm kev ntxiv cov ntawv nyiaj ultra-nyias nickel hauv nws, nws tuaj yeem them rau 70% hauv 11 feeb thiab muaj kev tsav tsheb txog li 400 mais; Nws tuaj yeem them rau 75% hauv 12 feeb thiab muaj kev tsav tsheb ntawm 440 mais.
Yog xav paub ntxiv txog cov khoom siv nickel foil, thov hu rau peb cov kws tsim khoom muag.
Cov ntaub ntawv tiv tauj:
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