Rechargeable lithium ion roj teeb yog cov roj teeb siv feem ntau hauv cov khoom lag luam digital niaj hnub xws li xov tooj ntawm tes thiab laptops, tab sis lawv yog" ilv" thiab tsis tuaj yeem overcharged lossis overreleased (uas yuav ua kev puas tsuaj rau lub roj teeb lossis ua rau nws tsis zoo) thaum siv. Yog li ntawd, muaj cov khoom siv tiv thaiv lossis kev tiv thaiv kev tiv thaiv ntawm lub roj teeb kom tiv thaiv cov roj teeb ua puas. Lithium ion roj teeb uas yuav tsum tau them yog siab heev, los xyuas kom meej qhov kev tso tawm voltage qhov tseeb tsis pub dhau ± 1%, lub tshuab hluav taws xob tseem ceeb ntawm cov tshuab hluav taws xob tau tsim ntau yam ntawm LITHIUM ion roj teeb them IC, txhawm rau kom muaj kev nyab xeeb, txhim khu kev qha, ceev them loj muaj peev xwm lithium roj teeb.
Cov xov tooj ntawm tes siv cov roj ntsha lithium-ion. Kev siv cov roj ntsha lithium-ion tseem ceeb heev rau kev txuas ntxiv lub roj teeb. Nws tuaj yeem ua rau hauv cov duab plaub tiaj tiaj, lub tog raj kheej, duab plaub thiab cov nyees khawm raws li qhov yuav tsum tau ua ntawm cov khoom siv hluav taws xob sib txawv, thiab muaj ob peb lub roj teeb ua hauv cov kab thiab tib yam. Cov ntsuas hluav taws xob ntawm lub lithium ion roj teeb, vim qhov hloov ntawm cov khoom siv, feem ntau 3.7V thiab 3.2V rau qhov zoo electrode ntawm lithium iron phosphate (hereinafter hu ua ferrophosphorus). Thaum them tag nrho, lub davhlau ya nyob twg them voltage feem ntau yog 4.2V thiab ferrophosphorus 3.65V. Kev txiav tawm tawm voltage ntawm lithium ion roj teeb yog 2.75V ~ 3.0V (lub roj teeb Hoobkas muab cov ua hauj lwm voltage ntau lossis lub sij hawm tso tawm hluav taws xob voltage, qhov ntsuas tau txawv me ntsis, feem ntau 3.0V, 2.5V phosphorus hlau). Txuas ntxiv tso tawm qis dua 2.5V (ferric phosphorus 2.0V) hu ua overdischarge, uas tuaj yeem ua kev puas tsuaj rau lub roj teeb.
