Nrog kev nce qib sai ntawm cov thev naus laus zis thev naus laus zis, kev tshawb fawb ntawm cov khoom siv roj teeb cuam tshuam ncaj qha rau kev ua haujlwm roj teeb, kev nyab xeeb, thiab tus nqi - kev ua tau zoo. Los ntawm cov neeg siv khoom siv hluav taws xob mus rau lub tsheb hluav taws xob mus rau qhov loj - teev lub zog cia cov tshuab, cov ntawv thov sib txawv ua rau muaj kev xav tau ntawm cov khoom siv roj teeb, ua rau kev xaiv tsim nyog ntawm cov khoom siv roj teeb tseem ceeb heev.
Ua ntej, lub zog ceev yog qhov tseem ceeb rau kev txiav txim siab. Lithium-ion roj teeb yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv nqa tau vim lawv lub peev xwm tshwj xeeb (piv txwv li, lub peev xwm theoretical ntawm lithium cobalt oxide cathodes yog kwv yees li 140 mAh / g). Thaum lithium hlau phosphate (LFP), thaum muaj lub zog qis dua (kwv yees li 160 mAh / g), tau siv dav hauv tsheb tshiab zog vim nws thermal stability thiab lub neej ntev. Qhov thib ob, kev nyab xeeb yog qhov tseem ceeb. Ternary cov ntaub ntawv (xws li npib tsib xee-cobalt-manganese (NCM)) muaj lub zog ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom nickel{7}cobalt-cobalt-manganese (NCM) Hauv qhov sib piv, lithium titanate anode cov ntaub ntawv muaj kev nyab xeeb zoo dua thiab tsim nyog rau cov ntawv thov uas yuav tsum muaj kev ruaj ntseg ruaj khov.
Tus nqi thiab cov peev txheej sustainability tseem cuam tshuam cov kev txiav txim siab ntawm cov khoom. Cov khoom siv cobalt tsis tshua muaj thiab lawv cov nqi hloov pauv ntau, tsav kev lag luam mus rau cobalt- qauv tsim dawb (xws li npib tsib xee-manganese binary cathodes) lossis tsim lwm yam thev naus laus zis xws li sodium - ion roj teeb. Tsis tas li ntawd, ib puag ncig compatibility yuav tsum tau xav txog. Thaum qhov kub thiab txias, qhov ionic conductivity ntawm electrolytes thiab cov khoom siv electrode txo qis, yuav tsum tau siv cov khoom siv ntxiv (xws li LiFSI) lossis cov khoom siv hluav taws xob- xeev electrolytes los ua kom zoo dua.
Thaum kawg, xaiv cov khoom siv roj teeb yuav tsum muaj qhov sib npaug ntawm qhov kev ua tau zoo, cov kev xav tau ntawm cov khoom siv, thiab cov khoom siv sib txuas. Nrog kev ua tiav hauv cov thev naus laus zis xws li cov khoom siv- lub xeev cov roj teeb thiab lithium- cov roj teeb sulfur, cov ntaub ntawv kev tshawb fawb yuav txuas ntxiv mus ua kev tsim kho tshiab hauv kev lag luam roj teeb.