Yam dab tsi cuam tshuam rau kev tiv thaiv sab hauv ntawm lithium{0}}ion roj teeb
yam ntxiv
Qhov kub thiab txias ambient kub yog qhov tseem ceeb cuam tshuam rau ntau yam kev tiv thaiv. Tshwj xeeb, rau lithium- roj teeb ion, nws yog vim qhov kub thiab txias cuam tshuam rau kev ua haujlwm ntawm cov khoom siv hluav taws xob, uas ncaj qha txiav txim siab ceev ntawm electrochemical tshuaj tiv thaiv thiab ceev ntawm ion zog.
Qhov kev thov tam sim no lossis kev thauj khoom, ntawm ib sab, qhov loj ntawm qhov tam sim no yog ncaj qha cuam tshuam rau lub polarization sab hauv tsis kam. Cov qauv dav dav yog qhov ntau dua qhov tam sim no, qhov ntau dua qhov polarization sab hauv tsis kam. Ntawm qhov tod tes, cov nyhuv thermal ntawm qhov tam sim no muaj kev cuam tshuam rau kev ua haujlwm ntawm cov khoom siv electrochemical.
Qhov tseem ceeb ntawm lub roj teeb nws tus kheej
Cov khoom siv hluav taws xob zoo, cov khoom siv hluav taws xob tsis zoo, thiab qhov yooj yim ntawm intercalation thiab deintercalation ntawm lithium ions txiav txim siab sab hauv ntawm cov khoom, uas yog ib feem ntawm cov concentration polarization kuj.
Electrolyte, tus nqi txav ntawm lithium ions hauv electrolyte cuam tshuam los ntawm kev ua haujlwm ntawm electrolyte thiab yog ib feem tseem ceeb ntawm electrochemical polarization tsis kam.
Lub diaphragm, qhov tsis kam ntawm lub diaphragm nws tus kheej, ncaj qha ua ib feem ntawm ohmic sab hauv tsis kam, thiab tib lub sijhawm, nws tsis kam mus rau qhov txav ntawm lithium ions ua ib feem ntawm electrochemical polarization kuj.
Cov khoom siv tam sim no, cov khoom sib txuas tiv thaiv, yog ib feem tseem ceeb ntawm ohmic sab hauv tsis kam ntawm lub roj teeb.
Cov txheej txheem theem, cov txheej txheem ntau lawm ntawm tus ncej, qhov sib xws ntawm cov txheej txheem, cov txheej txheem compaction, thiab cov txheej txheem theem thaum lub sij hawm ua cov cell kuj yuav muaj kev cuam tshuam ncaj qha rau cov polarization sab hauv tsis kam.
