Tsis ntev los no, pom tias qhov kub tau poob qis heev, thiab lub roj teeb puv tom qab them, tab sis nws tsis muaj zog tom qab siv. Hauv qhov no, cia peb tham txog kev sib raug zoo ntawm lub roj teeb thiab qhov kub:
If lithium roj teeb siv rau hauv qhov chaw kub qis, uas yog, qis dua 4℃, lub sijhawm ua haujlwm ntawm lub roj teeb kuj yuav raug txo qis, thiab qee lub roj teeb lithium qub tsis tuaj yeem them rau hauv qhov chaw kub qis. Tab sis tsis txhob txhawj ntau dhau. Qhov no tsuas yog ib qho xwm txheej ib ntus xwb, txawv ntawm kev siv hauv qhov chaw kub siab. Thaum qhov kub nce siab, cov molecules hauv lub roj teeb yuav raug cua sov, thiab lub roj teeb yuav rov qab tau nws lub zog yav dhau los tam sim ntawd. Qhov kub siab dua, qhov nrawm dua ntawm kev txav mus los ntawm anion thiab cation hauv lub cell thawj zaug, qhov nrawm dua ntawm kev nce thiab poob ntawm ob lub electrodes, thiab qhov ntau dua tam sim no.
Qhov Cuam Tshuam ntawm Kub rau Qhov Kev Tiv Thaiv Sab Hauv ntawm Lub Roj Teeb hauv Cov Ntaub Ntawv ntawmQhov Ntsuas Tsheb Thauj KhoomKev Tsim Kho
Thaum tso tawm ntawm qhov kub ntawm ambient ntawm 0℃~30℃, qhov tsis kam sab hauv ntawm lub roj teeb txo qis nrog rau qhov kub thiab txias nce. Ntawm qhov tsis sib xws, thaum lub roj teeb kub txo qis, qhov tsis kam sab hauv ntawm lub roj teeb maj mam nce, thiab qhov tsis kam sab hauv ntawm lub roj teeb hloov pauv linearly nrog rau qhov kub thiab txias Yog li ntawd, qhov kub ua haujlwm ntawm lub roj teeb tso tawm yog nyob rau hauv qhov ntau ntawm 0℃~30℃. Qhov kev coj ua ntawm electrolyte zoo, thiab qhov ceev ntawm hydrogen ion thiab sulfate ion hauv electrolyte mus rau cov khoom siv nquag kuj siab. Qhov no tsis tsuas yog txhim kho qhov kev sib xyaw ua ke polarization, tab sis kuj txhim kho qhov ceev ntawm electrode, ntxiv txhim kho qhov cuam tshuam ntawm electrotsis muaj dab tsikev sib xyaw ua ke ntawm cov tshuaj lom neeg, yog li ntawd lub peev xwm tso tawm ntawm lub roj teeb nce ntxiv.
Thaum qhov kub ntawm huab cua poob qis dua 0℃, qhov kev tiv thaiv sab hauv yuav nce ntxiv li ntawm 15% rau txhua 10℃txo qhov kub thiab txias. Vim tias qhov viscosity ntawm sulfuric acid kua loj dua, qhov kev tiv thaiv tshwj xeeb ntawm sulfuric acid kua yuav nce ntxiv, uas yuav ua rau qhov cuam tshuam ntawm electrode polarization hnyav dua. Lub peev xwm ntawm lub roj teeb yuav txo qis heev.
Kev cuam tshuam ntawmTkub ntawmCkev siv zog thiabDtab tom them
Rov ua dua lub voj voog ntawm kev tso tawm thiab kev them hluav taws xob tsawg-voltage tas mus li. Thaum pib, qhov kub ntawm lub roj teeb tsis siab vim yog qhov kev coj cua sov. Yog tias lub voj voog ntawm kev them thiab kev tso tawm rov ua dua, qhov kub ntawm electrolyte yuav siab heev.
Yog tias them ntawm qhov kub qis, qhov ceev tam sim no diffusion txo qis heev, thaum qhov ceev tam sim no pauv txo qis tsis ntau, yog li qhov concentration polarization intensifying, uas yuav ua rau txo qis ntawm kev them nqi efficiency. Ntawm qhov tod tes, qhov saturation ntawm qhov kawg tso tawm lead sulfate ntawm qhov kub qis ua rau muaj kev tiv thaiv ntawm roj teeb them thiab tawm cov tshuaj tiv thaiv, yog li ntawd txo qis ntxiv ntawm kev them nqi efficiency.
Yog tias lub roj teeb raug them ntawm qhov kub thiab txias tshaj 10℃, qhov polarization raug txo qis heev, thiab qhov nrawm thiab solubility ntawm cov hlau lead sulfate tuaj yeem txhim kho. Tsis tas li ntawd, qhov nrawm ntawm cov pa oxygen nce ntxiv ntawm qhov kub siab dua, uas yuav txhim kho kev them roj teeb thiab kev tso tawm zoo dua nyob rau hauv kev cuam tshuam ntawm cov yam ntxwv no.
Lub sijhawm tshaj tawm: Cuaj hlis-16-2022