1. Cov teeb meem ua qias tuaj tom qab rov ua dua lithium hlau phosphate
Kev lag luam rov ua dua roj teeb fais fab yog qhov loj heev, thiab raws li cov koom haum tshawb fawb cuam tshuam, tag nrho cov roj teeb fais fab so haujlwm hauv Suav teb yuav tsum ncav cuag 137.4MWh txog xyoo 2025.
Noj roj teeb lithium hlau phosphatePiv txwv li, muaj ob txoj hauv kev rau kev rov ua dua tshiab thiab siv cov roj teeb fais fab uas so haujlwm lawm: ib qho yog kev siv cov roj teeb uas siv tas lawm, thiab lwm qhov yog kev rhuav tshem thiab rov ua dua tshiab.
Kev siv cascade yog hais txog kev siv cov roj teeb fais fab lithium iron phosphate uas muaj peev xwm tseem tshuav ntawm 30% txog 80% tom qab disassembly thiab recombination, thiab siv rau thaj chaw qis zog xws li kev khaws cia hluav taws xob.
Kev rhuav tshem thiab rov ua dua tshiab, raws li lub npe qhia, hais txog kev rhuav tshem cov roj teeb fais fab lithium iron phosphate thaum lub peev xwm seem tsawg dua 30%, thiab rov qab tau lawv cov khoom siv raw, xws li lithium, phosphorus, thiab hlau hauv cov electrode zoo.
Kev rhuav tshem thiab rov ua dua cov roj teeb lithium-ion tuaj yeem txo qhov kev khawb cov khoom siv tshiab los tiv thaiv ib puag ncig thiab kuj muaj txiaj ntsig zoo rau kev lag luam, txo cov nqi khawb, cov nqi tsim khoom, cov nqi ua haujlwm, thiab cov nqi tsim kab ntau lawm.
Lub hom phiaj ntawm kev rhuav tshem thiab rov ua dua cov roj teeb lithium-ion feem ntau yog muaj cov kauj ruam hauv qab no: ua ntej, sau thiab faib cov roj teeb lithium pov tseg, tom qab ntawd rhuav cov roj teeb, thiab thaum kawg cais thiab ua kom cov hlau zoo. Tom qab ua haujlwm, cov hlau thiab cov ntaub ntawv rov qab tau tuaj yeem siv rau kev tsim cov roj teeb tshiab lossis lwm yam khoom, txuag tau ntau cov nqi.
Txawm li cas los xij, tam sim no suav nrog ib pawg tuam txhab rov ua dua roj teeb, xws li Ningde Times Holding Co., Ltd. lub tuam txhab me Guangdong Bangpu Circular Technology Co., Ltd., txhua tus ntsib teeb meem nyuaj: kev rov ua dua roj teeb yuav tsim cov khoom lom thiab tso tawm cov pa phem. Kev ua lag luam xav tau cov thev naus laus zis tshiab los txhim kho kev ua qias tuaj thiab kev lom ntawm kev rov ua dua roj teeb.
2.LBNL pom cov ntaub ntawv tshiab los daws cov teeb meem ua qias tuaj tom qab siv roj teeb dua tshiab.
Tsis ntev los no, Lawrence Berkeley National Laboratory (LBNL) hauv Tebchaws Meskas tau tshaj tawm tias lawv tau pom ib yam khoom tshiab uas tuaj yeem siv cov roj teeb lithium-ion pov tseg los ntawm dej xwb.
Lub Chaw Kuaj Mob Hauv Tebchaws Lawrence Berkeley tau tsim tsa xyoo 1931 thiab yog tswj hwm los ntawm University of California rau US Department of Energy's Science Office. Nws tau yeej 16 qhov khoom plig Nobel.
Cov khoom siv tshiab uas Lawrence Berkeley National Laboratory tau tsim hu ua Quick-Release Binder. Cov roj teeb lithium-ion ua los ntawm cov khoom siv no tuaj yeem rov ua dua tshiab tau yooj yim, zoo rau ib puag ncig, thiab tsis muaj tshuaj lom. Lawv tsuas yog yuav tsum tau rhuav tshem thiab muab tso rau hauv dej alkaline, thiab maj mam co kom sib cais cov ntsiab lus xav tau. Tom qab ntawd, cov hlau raug lim tawm ntawm dej thiab ziab.
Piv nrog rau kev siv cov roj teeb lithium-ion tam sim no, uas suav nrog kev rhuav thiab sib tsoo cov roj teeb, ua raws li kev hlawv rau hlau thiab cov khoom sib cais, nws muaj kev lom loj heev thiab kev ua haujlwm tsis zoo rau ib puag ncig. Cov khoom siv tshiab zoo li hmo ntuj thiab nruab hnub piv rau.
Thaum kawg ntawm lub Cuaj Hli 2022, cov thev naus laus zis no tau raug xaiv los ua ib qho ntawm 100 cov thev naus laus zis hloov pauv tshiab uas tau tsim thoob ntiaj teb hauv xyoo 2022 los ntawm R&D 100 Awards.
Raws li peb paub, cov roj teeb lithium-ion muaj cov electrodes zoo thiab tsis zoo, lub separator, electrolyte, thiab cov ntaub ntawv tsim, tab sis cov khoom no sib xyaw ua ke li cas hauv cov roj teeb lithium-ion tsis paub zoo.
Hauv cov roj teeb lithium-ion, cov khoom siv tseem ceeb uas tswj cov qauv roj teeb yog cov nplaum.
Cov khoom siv tshiab Quick-Release Binder uas cov kws tshawb fawb ntawm Lawrence Berkeley National Laboratory tau tshawb pom yog ua los ntawm polyacrylic acid (PAA) thiab polyethylene imine (PEI), uas txuas nrog los ntawm cov hlua khi ntawm cov nitrogen atoms uas muaj nqi zoo hauv PEI thiab cov oxygen atoms uas muaj nqi tsis zoo hauv PAA.
Thaum muab cov khoom siv Quick-Release Binder tso rau hauv dej alkaline uas muaj sodium hydroxide (Na+OH-), cov sodium ions mam li nkag mus rau hauv qhov chaw nplaum, cais ob lub polymers. Cov polymers uas raug cais tawm yuav yaj rau hauv cov kua, thiab tso tawm cov khoom siv electrode uas nyob hauv.
Hais txog tus nqi, thaum siv los tsim cov roj teeb lithium positive thiab negative electrodes, tus nqi ntawm cov nplaum no yog li ib feem kaum ntawm ob qho feem ntau siv
Lub sijhawm tshaj tawm: Plaub Hlis-25-2023