Nrog rau kev muag khoom ntawm lub zog tsheb tshiab, cov cuab yeej loj xws li lub zog tshiab tsheb tau tso rau siab them nqi thiab tso tawm cov roj teeb rau cov roj ntsha lithium-ion, thaum lub anode thiab cathode cov ntaub ntawv siv tam sim no tsis muaj peev xwm ua tau raws li cov cai saum toj no. Txhawm rau txhim kho kev ua haujlwm ntawm cov roj teeb lithium-ion, nws tsis yog lub feem ntau yooj yim thiab ua tau zoo los txhim kho qhov kev ua tau zoo ntawm lub tshuab hluav taws xob ua ntej.
Silicon muaj qhov loj dua theoretical tshwj xeeb muaj peev xwm (4200mAh / g), ib qho kev txiav txim ntawm qhov siab tshaj qhov tshwj xeeb muaj peev xwm ntawm graphite anode cov ntaub ntawv (372mAh / g) thiab qis lithium embedded lub peev xwm. Silicon yog qhov zoo tshaj plaws anode cov khoom siv rau lub cim tshiab ntawm cov roj teeb lithium-ion vim tias nws lub zog qis nrog cov roj ntsha, cov khoom muaj ntau nyob hauv lub ntiaj teb' s lub ntsej muag thiab cov nqi qis.
Keeb kwm ntawmsilicon carbon anode
Kev lag luam kev lag luam ntawm cov khoom siv silicon cov roj carbon anode pib thaum xyoo 1920. Xyoo 1970, thaum siv tshuaj silicon rau qhov anode ntawm lithium-ion roj teeb, cov neeg sim tau pib siv lub keeb uas tuaj yeem ua rau alloys raws li qhov anode.
Lub sijhawm txij xyoo 1990 txog 2000 yog thawj zaug kev txhim kho ntawm silicon-based tsis zoo electrode. Ua ntej tshaj, kev npaj ntawm silicon-based tsis zoo electrode los ntawm pyrolytic silicon-muaj polymer tau tshawb.
Hauv lub sijhawm xyoo 1990, nanoscale complex ntawm silicon nrog lwm cov matrices kuj tau siv los txhim kho kev ua tau zoo ntawm cov roj ntsha tsis muaj teeb meem ntawm cov roj ntsha. Lub silicon / graphite composite tau npaj los ntawm kev ua kom lub cev, thiab nws lub peev xwm tau nce los ntawm 437mAh / g txog 1039mAh / g
Txij thaum pib ntawm lub xyoo pua 21st, cov kua roj me me silicon nanoparticles, cov duab ob-seem thiab peb sab qauv silicon tau kawm txog kev nthuav dav thiab cov tshuab paub tab tau tsim.
Peb,TOB Tshiab Zog, raws li tus kws tshaj lij cov roj ntsha lithium ion roj teeb tsim tshuab thiab cov khoom siv khoom lag luam, uas tau tshwj xeeb hauv daim teb no ntau dua 17 xyoo.Peb muab tag nrho cov kws tshaj lij lithium roj teeb kuaj cov khoom siv thiab cov khoom siv kab ntau lawm.any nthuav nrog nws, zoo siab txais tos hu rau kuv dawb
Hu Rau (Tus Tsim Qauv& Muag Khoom): nplua mias
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