Lithium-ion roj teeb yog ib hom roj teeb uas tsis yog-aqueous electrolyte tov nrog lithium hlau los yog lithium alloy li cov khoom tsis zoo electrode. Xyoo 1912, Gilbert n. Lewis thawj zaug tau thov thiab kawm txog cov roj teeb lithium hlau. Nyob rau xyoo 1970, MS Whittingham tau thov thiab pib kawm cov roj teeb lithium-ion. Vim yog cov khoom siv tshuaj lom neeg zoo heev ntawm cov hlau lithium, kev ua haujlwm, cia thiab siv cov hlau lithium muaj qhov xav tau ib puag ncig siab heev. Yog li ntawd, cov roj teeb lithium-ion tsis tau siv ntev. Nrog rau kev txhim kho kev tshawb fawb thiab thev naus laus zis, cov roj teeb lithium-ion tau dhau los ua qhov tseem ceeb.
Cov roj teeb lithium-ion tuaj yeem muab faib ua ob pawg: lithium hlau roj teeb thiab lithium-ion roj teeb. Cov roj teeb lithium-ion tsis muaj cov roj ntsha lithium thiab tuaj yeem them rov qab. Lub thib tsib-tiam rechargeable lithium hlau roj teeb tau yug los nyob rau hauv 1996, thiab nws txoj kev nyab xeeb, tshwj xeeb muaj peev xwm, tus kheej-tso tus nqi thiab kev ua tau zoo piv yog zoo dua lithium-ion roj teeb. Vim nws cov kev xav tau siab, tsuas yog ob peb lub tuam txhab hauv ob peb lub tebchaws tam sim no tsim cov roj teeb lithium hlau.
Lithium-ion roj teeb muaj qhov zoo hauv qab no:
Lub zog siab ceev: Raws li cov khoom siv hluav taws xob sib txawv, nws qhov hnyav tuaj yeem ncav cuag 150~ 200Wh / kg (540 ~ 720kJ / kg). Lub ntim tuaj yeem ncav cuag 250 ~ 530Wh / L (0.9 ~ 1.9kJ / cm3). [2]
Qhib Circuit Court voltage: nrog kev hloov ntawm cov khoom siv electrode, mus txog 3.3 ~ 4.2v.
High output power: up to 300~1500W/kg (@20 seconds), depending on electrode material. [1] (does not match source)
Tsis muaj kev nco zoo: Lub roj teeb lithium hlau phosphate tsis muaj lub cim xeeb, lub roj teeb tuaj yeem raug them thiab tawm txhua lub sijhawm yam tsis muaj kev them nyiaj tas, thiab nws yooj yim rau siv thiab tswj.
Tsawg tus kheej tawm:<5%~10% onth.="" the="" monitoring="" circuitry="" built="" into="" the="" smart="" li-ion="" battery="" is="" even="" more="" efficient="" than="" the="" self-discharge="">
Kev khiav hauj lwm kub ntau: -20 degree ~ 60 degree ua haujlwm ib txwm.
Fast charge thiab tso tawm
Yog li ntawd, cov roj teeb lithium-ion tau siv dav hauv cov khoom siv hluav taws xob, cov khoom tshwj xeeb, cov khoom tshwj xeeb thiab lwm yam. Lub roj teeb lithium-ion yog lub roj teeb uas siv tau uas ua haujlwm los ntawm kev txav lithium ions ntawm qhov zoo thiab tsis zoo electrodes. Cov roj teeb lithium-ion siv intercalated lithium compounds ua cov khoom siv electrode. Tam sim no, lithium cobalt oxide (LiCoO2), lithium manganese acid (LiMn2O4), lithium nickel acid (LiNiO2), thiab lithium hlau phosphate (LiFePO4) feem ntau siv cov khoom tsis zoo electrode rau lithium ion roj teeb. Nyob rau tib lub sijhawm, cov roj teeb lithium-ion kuj muaj qhov tsis zoo hauv qab no: (1) Overdischarge tsis kam: nyob rau hauv cov ntaub ntawv ntawm overdischarge (qhov voltage thaum tawm yog tsawg dua 3.0v), cov lithium intercalated ntau heev. ions yuav raug kho nyob rau hauv lub lattice thiab tsis tuaj yeem tso tawm dua, ua rau lub neej luv. , thiab kev tso tawm tob yuav ua rau lub roj teeb puas. Yog li ntawd, kev siv lub zog qis heev tuaj yeem ua rau lub roj teeb puas tsuaj, tab sis ntev npaum li lub roj teeb tau them ntawm qhov hluav taws xob ntau ntau zaus, nws tuaj yeem rov qhib lub roj teeb lub peev xwm siab tshaj plaws. (2) Unbearable overcharge: Thaum lub sij hawm overcharge txheej txheem, lub electrode yog stripped los ntawm ib tug loj npaum li cas ntawm lithium ions, thiab lub lithium ions tsis replenished nyob rau hauv lub sij hawm, ua rau ib tug ntev lub sij hawm vau ntawm lub lattice, uas irreversibly txo qhov chaw cia. hluav taws xob zog. Yog li ntawd, cov roj teeb Li-Ion yuav tsum tau siv ntau zaus los tiv thaiv lawv kom tsis txhob them tag nrho thiab txuas txuas mus ntxiv rau hauv lub charger connector. Nws yog ib qho tsim nyog yuav tsum ua kom cov dej ntws ntawm cov khoom siv hluav taws xob khaws cia rau hauv kom zoo thiab tswj xyuas lub sijhawm ntev ntawm lub roj teeb. (3) Kev laus tsis tuaj yeem sawv qhov cua sov, tsis zoo li lwm cov roj teeb uas siv tau, cov roj teeb lithium-ion yuav inevitably poob rau hauv lub voj voog qeeb nrog kev siv lub voj voog, txawm tias tsis siv, lub peev xwm khaws cia yuav txo qis, uas cuam tshuam rau kev siv (tshwj tsis yog nws yog qhov phem heev. over-inflation Cycling ua rau poob ntawm lattice khaubncaws sab nraud povtseg, raws li cov txheej txheem kev laus yog ntau tsim nyog hu ua poob), thiab yog kub nyob ntawm seb. Ib qho kev ua tau zoo yog qhov sib ntxiv ntawm kev ua haujlwm sab hauv, yog li cov khoom siv hluav taws xob ua haujlwm siab tam sim no muaj kev cuam tshuam rau thermal degradation, thiab yuav tsum tau tiv thaiv qhov kub ntawm sab nraud.