Dab tsi yog qhov txawv ntawm Lead Acid thiab Lithium Ion Battery

Cov txheej txheem:

Dab tsi yog qhov txawv ntawm Lead Acid thiab Lithium Ion Battery
Dab tsi yog qhov txawv ntawm Lead Acid thiab Lithium Ion Battery

Video: Dab tsi yog qhov txawv ntawm Lead Acid thiab Lithium Ion Battery

Video: Dab tsi yog qhov txawv ntawm Lead Acid thiab Lithium Ion Battery
Video: Finance with Python! Portfolio Diversification and Risk 2024, Hlis ntuj nqeg
Anonim

Qhov sib txawv tseem ceeb ntawm cov roj ntsha roj ntsha thiab lithium ion roj teeb yog cov roj ntsha lead acid xav tau kev saib xyuas tsis tu ncua, muaj lub neej luv dua, thiab pheej yig dua, thaum lithium ion roj teeb muaj lub neej ntev dua, kev ua haujlwm siab dua, thiab kim.

Lead acid roj teeb thiab lithium ion roj teeb yog cov thev naus laus zis tseem ceeb hauv kev lag luam roj teeb rov qab. Ob hom no muaj tshuaj lom neeg thiab lub cev sib txawv.

Lead Acid Roj teeb yog dab tsi?

Lead acid roj teeb yog lub roj teeb rov qab uas tau tsim nyob rau xyoo 1859 los ntawm Fabkis tus kws kho mob Gaston Plante. Nws yog thawj hom rechargeable roj teeb uas puas tau ua. Cov roj teeb no txawv ntawm cov roj teeb niaj hnub no, thiab cov roj teeb no muaj lub zog tsawg tsawg. Tsis tas li ntawd, cov roj teeb no muaj peev xwm muab cov khoom siv hluav taws xob siab, uas txhais tau hais tias cov hlwb muaj lub zog loj-rau-hnyav piv. Tsis tas li ntawd, cov roj teeb lead acid tsis tshua kim, uas ua rau lawv txaus nyiam hauv kev lag luam tsheb. Qhov no yog vim nws muaj peev xwm muab tau ntau npaum li cas ntawm tam sim no raws li xav tau los ntawm starter motors.

Daim duab 01: A Lead Acid Lub Tsheb Roj Teeb - Sib piv ntawm Sab
Daim duab 01: A Lead Acid Lub Tsheb Roj Teeb - Sib piv ntawm Sab

Daim duab 01: A Lead Acid Tsheb Roj Teeb

Vim tias hom roj teeb no pheej yig piv rau cov roj teeb niaj hnub no, cov no muaj txiaj ntsig txawm tias qhov hluav taws xob tam sim no tsis tseem ceeb, thiab lwm cov qauv tsim muaj peev xwm muab lub zog siab ceev. Kev muag cov roj teeb txhuas hauv xyoo 1999 yog nyob ib ncig ntawm 40-50% ntawm tag nrho cov nqi ntawm cov roj teeb muag thoob ntiaj teb.

Ib lub roj teeb cov kua qaub uas muaj cov hmoov lead sulfate (PbSO 4) thiab dilute sulfuric acid (H2SO 4). Nyob rau hauv lub xeev ntawm tso tawm, ob qho tib si zoo thiab tsis zoo daim hlau ua PbSO 4,thiab cov electrolyte nyiam plam feem ntau ntawm cov yaj sulfuric acid los ua dej feem ntau. Cov tshuaj tiv thaiv phaj tsis zoo yog raws li hauv qab no:

Pb(s) +HSO4(aq) → PbSO4(s) + H+(aq) + 2e

Ob tug coj electrons raug tso tawm ntawm cov kauj ruam no uas ua rau cov electrode no tsis zoo. Kev sib sau ntawm cov hluav taws xob no tsim ib qho hluav taws xob uas tuaj yeem nyiam hydrogen ions thiab tshem tawm sulfate ions. Qhov no, nyob rau hauv lem, ua rau tsim ntawm ob txheej nyob ze ntawm qhov chaw.

Txawm hais txog cov tshuaj tiv thaiv phaj zoo, nws tuaj yeem hais tau raws li hauv qab no;

PbO2(s) + HSO4(aq) + 3H +(aq) + 2e → PbSO4(s) + 2H2O(l)

Yog li ntawd, tag nrho cov tshuaj tiv thaiv uas tau tshwm sim hauv cov roj ntsha lead acid yog;

Pb(s) +HSO4(aq) + 3H+(aq) → 2PbSO4(s) +2H2O(l)

Txawm li cas los xij, hauv lub xeev them tag nrho, lub phaj tsis zoo muaj cov hlau lead, thiab cov phaj zoo muaj cov hlau lead dioxide. Muaj cov tshuaj electrolytic uas muaj ntau dua ntawm aqueous sulfuric acid. Cov electrolyte no khaws feem ntau ntawm cov tshuaj siv zog.

Lub roj teeb lithium Ion yog dab tsi?

Lithium ion roj teeb yog lub roj teeb uas muaj peev xwm nrog cov hlwb uas lithium ion txav ntawm qhov tsis zoo electrode mus rau qhov zoo electrode los ntawm electrolyte thaum tawm. Cov txheej txheem thim rov qab tshwm sim thaum them nyiaj. Feem ntau, lithium ion hlwb zoo li siv cov lithium intercalated uas ua raws li cov khoom ntawm cov electrode zoo. Feem ntau, graphite yog siv ntawm qhov tsis zoo electrode.

Lead Acid vs Lithium Ion roj teeb nyob rau hauv daim ntawv Tabular
Lead Acid vs Lithium Ion roj teeb nyob rau hauv daim ntawv Tabular

Daim duab 02: Lithium Ion roj teeb

Ntxiv mus, lithium ion roj teeb muaj lub zog siab ceev. Tab sis nws tsis muaj lub cim xeeb cuam tshuam thiab qis tus kheej tso tawm. Lub hlwb ntawm lub roj teeb yog tsim, ua ntej lub zog los yog lub zog ceev. Txawm li cas los xij, cov roj teeb lithium ion tuaj yeem ua rau muaj kev nyab xeeb vim tias lawv muaj cov hluav taws xob hluav taws xob, uas tuaj yeem ua rau tawg thiab hluav taws kub vim kev puas tsuaj lossis them tsis raug.

Feem ntau, qhov tsis zoo electrode ntawm cov pa lithium-ion cell yog ua los ntawm carbon. Qhov zoo electrode yog hlau oxide. Ntxiv mus, cov electrolyte yog lithium ntsev nyob rau hauv cov organic hnyav. Nyob ntawm cov kev taw qhia ntawm tam sim no ntws los ntawm lub xovtooj ntawm tes, lub luag hauj lwm electrochemical ntawm electrodes thim rov qab ntawm anode thiab cathode. Hauv kev lag luam nplai, feem ntau anode yog graphite, thaum lub zoo electrode yog ib qho ntawm peb cov ntaub ntawv: ib txheej oxide, polyanion, los yog spinel.

Qhov txawv ntawm Lead Acid thiab Lithium Ion Roj teeb yog dab tsi?

Lead acid roj teeb yog thawj lub roj teeb rov qab uas tau ua. Lithium ion roj teeb yog lwm hom roj teeb rechargeable. Qhov sib txawv tseem ceeb ntawm cov roj ntsha lead acid thiab lithium ion roj teeb yog cov roj teeb lead acid xav tau kev saib xyuas tsis tu ncua, tsis siv sijhawm ntev, thiab pheej yig, whereas lithium ion roj teeb muaj kev ua haujlwm siab, muaj lub neej ntev dua, thiab kim.

Summary – Lead Acid vs Lithium Ion Battery

Feem ntau, cov roj teeb lithium ion feem ntau zoo dua rau cov roj teeb kua qaub vim lawv qhov kev sib raug zoo thiab kev ua haujlwm zoo. Qhov sib txawv tseem ceeb ntawm cov roj ntsha lead acid thiab lithium ion roj teeb yog cov roj teeb lead acid xav tau kev saib xyuas tsis tu ncua thiab tsis siv sijhawm ntev, thiab pheej yig, thaum lithium ion roj teeb muaj kev ua tau zoo dua, lub neej ntev dua, thiab kim.

Pom zoo: