Puas yog peb kev saib xyuas ntawm Lithium roj teeb puas raug? Qhov teeb meem no tau plagued ntau loyal mobile neeg siv, nrog rau kuv. Tom qab tham txog qee cov ntaub ntawv, kuv muaj sijhawm los tham nrog PhD cov tub ntxhais kawm hauv electrochemistry, uas kuj yog tus thawj coj ntawm lub koom haum tshawb fawb roj teeb uas paub zoo hauv Suav teb. Tam sim no sau qee qhov kev paub thiab kev paub dhau los los qhia rau koj cov neeg nyeem.

“Qhov zoo electrode ntawm lithium roj teeb feem ntau yog ua los ntawm cov khoom siv hluav taws xob ntawm lithium, thaum lub electrode tsis zoo yog carbon nrog cov qauv tshwj xeeb molecular.” Ib qho tseem ceeb ntawm cov ntaub ntawv zoo siv feem ntau yog LiCoO2. Thaum lub sij hawm them tus txheej txheem, lub peev xwm hluav taws xob ntawm lub roj teeb ncej quab yuam lub compound nyob rau hauv lub zoo electrode tso tawm lithium ions thiab ntxig rau hauv cov pa roj carbon, thaum lub electrode tsis zoo molecules yog teem nyob rau hauv ib tug laminar ntws. Lithium ions raug cais los ntawm cov txheej txheem txheej txheem ntawm cov pa roj carbon thaum lub sij hawm tawm thiab tau ua ke nrog cov anode compound. Lub zog ntawm lithium ions tsim hluav taws xob tam sim no.

Lub hauv paus ntsiab lus ntawm cov tshuaj tiv thaiv yog yooj yim heev, tab sis nyob rau hauv qhov tseeb industrial ntau lawm, muaj ntau cov tswv yim teeb meem los xav txog: zoo electrode additives yuav tsum tau muab khaws cia ntau zaus rau kev ua ub no, thiab tsis zoo electrodes yuav tsum tau tsim nyob rau hauv lub molecular theem kom haum raws li ntau lithium. ions; sau cov electrolyte ntawm lub anode thiab catholyte, ntxiv rau qhov ruaj khov, tab sis kuj muaj cov conductivity zoo heev, txo cov roj teeb sab hauv.

Txawm hais tias cov roj teeb lithium tsis tshua muaj lub cim xeeb ntawm cov roj teeb nickel-cadmium, lawv tsis yog. Txawm li cas los xij, vim muaj ntau yam laj thawj, cov roj teeb lithium tseem yuav poob qis dua tom qab them rov qab. Nws yog ib qho tseem ceeb los hloov cov ntaub ntawv anode thiab cathode nws tus kheej. Nyob rau theem molecular, kab noj hniav qauv ntawm qhov zoo thiab tsis zoo electrodes uas muaj lithium ions yuav maj mam vau thiab thaiv. Chemically, nws yog lub active passivation ntawm zoo thiab tsis zoo cov ntaub ntawv, qhia tias lub xub ntiag ntawm lwm cov tebchaw ruaj khov nyob rau hauv cov kev tshwm sim sab. Kuj tseem muaj qee qhov kev mob ntawm lub cev, xws li kev poob qis ntawm cov ntaub ntawv anode, uas thaum kawg yuav txo cov lithium ions uas tuaj yeem txav tau yooj yim thaum them thiab tawm hauv lub roj teeb.

Overcharge thiab tso tawm, cov electrodes hauv lithium roj teeb tsim kev puas tsuaj mus tas li. Nws tuaj yeem nkag siab zoo los ntawm qib molecular uas anode carbon emissions yuav ua rau kev tso tawm ntau dhau ntawm lithium ions thiab lawv cov txheej txheem txheej thaum lub caij nplooj zeeg, thiab overcharge yuav nyem ntau dhau lithium ions rau hauv nws. Cov qauv ntawm cov cathode carbon tiv thaiv qee cov lithium ions los ntawm kev tso tawm. Qhov no yog vim li cas cov roj teeb lithium feem ntau tau nruab nrog kev them nqi thiab kev tswj xyuas hluav taws xob.

Qhov kub tsis zoo yuav ua rau lwm yam tshuaj lom neeg hauv lub lithium roj teeb, thiab cov khoom tsis tsim nyog tshwm sim. Yog li ntawd, ntau lub roj teeb lithium tau nruab nrog kev tswj xyuas qhov kub thiab txias diaphragms lossis electrolyte additives ntawm qhov zoo thiab tsis zoo electrodes. Thaum lub roj teeb tau rhuab mus rau ib qho degree, qhov sib xyaw membrane qhov raug kaw los yog cov electrolyte yog denatured, lub internal kuj ntawm lub roj teeb nce mus txog rau thaum lub Circuit Court yog disconnected, thiab lub roj teeb yuav tsis heats li, kom ntseeg tau tias lub roj teeb qhov kub thiab txias.

Puas tuaj yeem sib sib zog nqus them thiab tso tawm kom muaj peev xwm ntawm lithium roj teeb? Cov kws tshaj lij tau hais meej meej rau kuv tias qhov no tsis muaj qab hau. Lawv txawm hais tias raws li kev paub ntawm ob tus kws kho mob, lub npe hu ua kev ua kom puv nkaus ntawm thawj peb koob tshuaj tsis muaj nuj nqis. Tab sis vim li cas coob tus neeg delve rau hauv cov ntaub ntawv roj teeb los qhia tias lub peev xwm yuav hloov mus rau yav tom ntej? Cov ntsiab lus no yuav hais tom qab.

Cov roj teeb lithium feem ntau muaj cov txheej txheem ua haujlwm thiab them nyiaj tswj cov chips. Nyob rau hauv tus txheej txheem, lub nti muaj ib tug series ntawm kev sau npe, muaj peev xwm, kub, ID, them raws li txoj cai, tso tawm lub sij hawm thiab lwm yam nqi. Cov nqi no maj mam hloov nrog kev siv. Kuv tus kheej xav tias cov txiaj ntsig tseem ceeb ntawm kev siv li ntawm ib hlis yuav tsum tau them tag nrho thiab tso tawm. Thaum phau ntawv qhia yuav tsum kho tus nqi tsis tsim nyog ntawm cov ntawv sau npe no, kev tswj hwm kev them nyiaj thiab lub peev xwm nominal ntawm lub roj teeb yuav tsum sib haum rau lub xeev ntawm lub roj teeb.