Daim ntawv thov ntawm txhuas ntawv ci hauv cov roj teeb lithium, qhov zoo ntawm cov ntawv ci txhuas hauv cov roj teeb lithium. Aluminium ntawv ci yog cov khoom tseem ceeb hauv qhov zoo electrode ntawm lithium roj teeb. Cov khoom tseem ceeb ntawm cov khoom siv tam sim no hauv cov roj teeb lithium-ion yog hlau ntawv (xws li tooj liab ntawv ci, aluminium ntawv ci). Nws txoj haujlwm yog txhawm rau sau cov khoom siv tam sim no los ntawm lub roj teeb cov khoom siv txhawm rau txhawm rau tsim cov zis tam sim no loj dua. Yog li ntawd, cov khoom siv tam sim no yuav tsum nyob rau hauv tag nrho kev sib cuag nrog cov khoom siv, thiab cov khoom siv sab hauv yuav tsum tsawg li tsawg tau.
Kev siv ntawm aluminium ntawv ci hauv cov roj teeb lithium
Daim ntawv zoo electrode yog lithium hlau phosphate coated ntawm txhuas ntawv ci, tab sis lithium hlau phosphate yog nyiam. Qhov tsis zoo electrode yog tooj liab ntawv coated nrog graphite los yog lithium titanate. Nws muaj qhov sib cais ntawm qhov zoo thiab qhov tsis zoo, uas yog qhov txhab ua ke. Muab cov ntawv dov zoo thiab tsis zoo (xws li cov khoom sib cais) rau hauv cov ntaub ntawv roj teeb ua ke, txhaj tshuaj electrolyte, thiab tom qab ntawd lub tshuab nqus tsev foob kom ua tiav cov khoom ntawm ib lub roj teeb.
Nyob rau hauv lithium roj teeb, tooj liab ntawv ci tsis yog tsuas yog cov cab kuj ntawm cov khoom tsis zoo active khoom, tab sis kuj yog lub collector thiab conductor ntawm tsis zoo electrons. Yog li ntawd, nws muaj cov kev cai tshwj xeeb, uas yog, nws yuav tsum muaj cov conductivity zoo, thiab saum npoo tuaj yeem sib npaug nrog cov ntaub ntawv tsis zoo electrode yam tsis muaj Shedding, thiab muaj kev tiv thaiv corrosion zoo. Txhawm rau kom ntseeg tau tias cov khoom siv tsis zoo electrode coated ntawm cov ntawv ci electrolytic tooj liab yuav tsis poob, yuav tsum tau ntxiv cov ntaub ntawv tsim nyog thaum npaj.
Nrog rau kev loj hlob sai ntawm kev lag luam roj teeb lithium, kev lag luam cia siab tias kev siv lithium roj teeb txhuas ntawv ci yuav ncav cuag li 80,000 tons los ntawm 2020.
Lithium roj teeb txhuas ntawv ci tuaj yeem muab faib ua cov roj teeb hluav taws xob, cov neeg siv roj teeb ci, thiab lub zog cia roj teeb ntawv. Ntawm lawv, cov roj teeb hluav taws xob tam sim no muaj qhov xav tau ntau tshaj plaws, suav txog ntau dua 50%, thaum cov neeg siv khoom siv roj teeb txhuas ntawv ci kev lag luam yog qhov pib saturated. Cov kws tshuaj ntsuam xyuas kev lag luam ntseeg tias qhov kev thov rau txhuas ntawv ci rau cov roj teeb hluav taws xob yuav nce ntxiv rau yav tom ntej, thiab aluminium ntawv ci rau lub zog cia roj teeb tseem yuav maj mam nce ntxiv.
