Cov pioneer ua hauj lwm ntawm lithium roj teeb pib nyob rau hauv 1912 nyob rau hauv GN Lewis, tab sis nws tsis yog mus txog rau thaum ntxov 1970s uas thawj cov roj teeb lithium rechargeable pib coj mus muag siv. Lithium yog lub teeb tshaj plaws ntawm tag nrho cov hlau, muab qhov loj tshaj plaws electrochemical peev xwm thiab lub zog siab tshaj plaws los ntawm qhov hnyav.
Kev sim tsim cov roj teeb lithium rechargeable ua tsis tiav vim muaj teeb meem kev nyab xeeb. Kev tshawb fawb tau tig mus rau kev siv lithium ions es tsis txhob siv cov roj ntsha lithium hauv cov roj teeb lithium uas tsis yog xim hlau vim yog qhov tsis muaj zog ntawm lithium hlau, tshwj xeeb tshaj yog thaum them nyiaj. Txawm hais tias lub zog ntom ntom me ntsis qis dua lithium hlau, lithium ions muaj kev nyab xeeb ntev npaum li qee qhov kev ceev faj thaum them thiab tawm. Xyoo 1991, Sony ua lag luam thawj lub roj teeb lithium-ion. Lwm cov tuam txhab ua raws li kev cai.
Lithium ion feem ntau muaj ob zaug lub zog ceev ntawm tus qauv nickel-cadmium. Nws muaj peev xwm ua kom muaj zog ntau dua. Nws cov yam ntxwv tawm tau zoo heev, thiab nws ua tau zoo ib yam li nickel-cadmium hauv paug. Lub roj teeb siab ntawm 3.6 volts tso cai rau lub roj teeb pob tsim siv tsuas yog ib lub xov tooj xwb. Feem ntau ntawm cov xov tooj ntawm tes niaj hnub no khiav ntawm ib lub roj teeb. Ib pob nickel-raws li yuav xav tau peb 1.2-volt cells txuas nrog hauv koob.
Lub roj teeb lithium-ion yog lub roj teeb uas tsis muaj kev saib xyuas, qhov zoo dua uas feem ntau lwm cov tshuaj tsis tuaj yeem thov. Tsis muaj lub cim xeeb thiab tsis muaj sijhawm caij tsheb kauj vab yuav tsum ua kom lub roj teeb lub neej ntev. Tsis tas li ntawd, qhov kev tso tawm tus kheej yog tsawg dua ib nrab piv rau npib tsib xee-cadmium, ua lithium-ion zoo haum rau kev siv roj ntsuas niaj hnub. Lithium-ion cells ua rau muaj kev phom sij me ntsis thaum muab pov tseg.
Txawm hais tias tag nrho qhov zoo ntawm lithium-ion, nws muaj nws qhov tsis zoo. Nws yog qhov tsis yooj yim thiab yuav tsum muaj kev tiv thaiv Circuit Court kom muaj kev nyab xeeb. Ua rau hauv txhua pob, qhov kev tiv thaiv Circuit Court txwv qhov siab tshaj plaws ntawm txhua lub xov tooj ntawm tes thaum lub sijhawm them nyiaj thiab tiv thaiv lub xov tooj ntawm tes los ntawm kev poob qis dhau ntawm kev tawm. Tsis tas li ntawd, kev tiv thaiv kev tiv thaiv hluav taws xob saib xyuas cov roj teeb kub kom tsis txhob muaj kev kub ntxhov. Feem ntau cov pob khoom raug ntsuas ntawm 1C txog 2C, nrog rau 1C yog sib npaug ntawm lub peev xwm ntsuas ntawm lub roj teeb hauv ib teev. Xws li kev tiv thaiv ntxiv rau cov nqi tsim khoom.
Kev laus yog ib qho kev txhawj xeeb rau feem ntau cov roj teeb lithium-ion thiab ntau lub tuam txhab nyob twj ywm ntawm qhov teeb meem no. Tom qab ib xyoos, lub roj teeb poob kwv yees li 20 feem pua ntawm nws lub peev xwm hauv ib xyoos ywj pheej ntawm seb lub roj teeb puas siv lossis tsis siv. Kev laus tshwm sim sai ntawm qhov kub siab dua. Kev khaws cia hauv qhov chaw txias qeeb qeeb ntawm cov txheej txheem kev laus ntawm lithium-ion (thiab lwm yam chemistry). Cov neeg tsim khoom pom zoo kom khaws cia ntawm 15 degree (59 degree F). Tsis tas li ntawd, lub roj teeb yuav tsum tau them ib nrab thaum lub sijhawm khaws cia, nrog rau kev pom zoo tus nqi ntawm 40 feem pua.
Rau tus nqi piv rau lub zog ntom ntom, lub cylindrical 18650 lithium-ion cell yog lub roj teeb uas siv nyiaj ntau tshaj plaws thiab siv rau kev siv xov tooj ntawm tes thiab lwm yam kev siv uas tsis xav tau ultra-thin geometry. Rau thinner geometries, prismatic lithium ion muaj qhov zoo tshaj plaws kev sib haum xeeb ntawm tus nqi-rau-zog piv thiab daim ntawv zoo.
Qhov zoo
- High zog ceev - muaj peev xwm rau tseem muaj peev xwm dua.
- Tsis xav tau ntev priming thaum tshiab. Ib qho kev them nqi tas li yog txhua yam uas xav tau.
- Tsawg tus kheej-tso tawm - nws tus kheej tso tawm tsawg dua li ib nrab ntawm cov roj teeb nickel-based.
- Kev Kho Mob Tsawg - tsis tas yuav muaj kev tso tawm raws sij hawm; tsis muaj kev nco.
- Cov hlwb tshwj xeeb tuaj yeem muab cov tam sim no siab heev rau cov ntawv thov xws li cov cuab yeej hluav taws xob.
Kev txwv
- Yuav tsum muaj kev tiv thaiv Circuit Court kom tswj tau qhov voltage thiab tam sim no nyob rau hauv kev txwv tsis pub dhau.
- Raws li kev laus, txawm tias tsis siv - cia rau hauv qhov chaw txias ntawm 40% tus nqi txo cov kev laus.
- Kev txwv kev thauj mus los - kev xa khoom ntawm cov khoom loj tuaj yeem raug tswj xyuas. Qhov kev txwv no tsis siv rau cov roj teeb nqa ntawm tus kheej.
- Kev tsim khoom kim heev - kwv yees li 40 feem pua siab dua ntawm tus nqi tshaj nickel-cadmium.
- Tsis paub tab - hlau thiab tshuaj hloov pauv mus ntxiv.
