Lithium roj teeb yog ib hom roj teeb uas siv lithium hlau los yog lithium alloy ua cov khoom siv electrode tsis zoo thiab siv cov tshuaj tsis muaj dej electrolyte.Qhov ntxov tshaj plaws lithium roj teeb tau los ntawm tus neeg tsim khoom zoo Edison.
Lithium roj teeb - Lithium roj teeb
lithium roj teeb
Lithium roj teeb yog ib hom roj teeb uas siv lithium hlau los yog lithium alloy ua cov khoom siv electrode tsis zoo thiab siv cov tshuaj tsis muaj dej electrolyte.Qhov ntxov tshaj plaws lithium roj teeb tau los ntawm tus neeg tsim khoom zoo Edison.
Vim tias cov khoom siv tshuaj lom neeg ntawm lithium hlau muaj zog heev, kev ua haujlwm, kev cia khoom thiab kev siv cov lithium hlau muaj qhov xav tau ib puag ncig siab heev.Yog li ntawd, cov roj teeb lithium tsis tau siv ntev.
Nrog rau txoj kev loj hlob ntawm microelectronics technology nyob rau hauv lub xyoo pua nees nkaum, cov khoom siv me me tau nce ib hnub dhau ib hnub, uas ua rau muaj kev xav tau siab rau kev siv hluav taws xob.Tom qab ntawd cov roj teeb lithium tau nkag mus rau theem ua haujlwm loj.
Nws yog thawj zaug siv hauv plawv pacemakers.Vim hais tias tus kheej-tso tus nqi ntawm lithium roj teeb yog tsawg heev, qhov paug tawm voltage yog ntxhab.Nws ua rau nws tuaj yeem cog cov pacemaker rau hauv tib neeg lub cev rau lub sijhawm ntev.
Cov roj teeb lithium feem ntau muaj qhov nominal voltage siab dua 3.0 volts thiab tsim nyog rau cov khoom siv hluav taws xob sib xyaw ua ke.Manganese dioxide roj teeb tau dav siv hauv computers, tshuab xam zauv, koob yees duab, thiab saib.
Txhawm rau txhim kho ntau yam nrog kev ua tau zoo, ntau yam ntaub ntawv tau kawm.Thiab ces ua cov khoom zoo li tsis tau ua ntej.Piv txwv li, lithium sulfur dioxide roj teeb thiab lithium thionyl chloride roj teeb yog qhov txawv heev.Lawv cov khoom muaj txiaj ntsig zoo kuj yog qhov hnyav rau cov electrolyte.Cov qauv no tsuas muaj nyob hauv cov tshuab hluav taws xob tsis muaj dej.Yog li ntawd, txoj kev kawm ntawm lithium roj teeb kuj tau txhawb txoj kev loj hlob ntawm electrochemical txoj kev xav ntawm cov tshuab tsis muaj dej.Ntxiv nrog rau kev siv ntau yam uas tsis yog-aqueous kuab tshuaj, kev tshawb fawb ntawm polymer nyias-film roj teeb kuj tau ua.
Xyoo 1992, Sony tau ua tiav cov roj teeb lithium-ion.Nws daim ntawv thov siv tau zoo heev txo qhov hnyav thiab ntim ntawm cov khoom siv hluav taws xob portable xws li xov tooj ntawm tes thiab khoos phis tawj.Lub sijhawm siv tau ntev heev.Vim tias cov roj teeb lithium-ion tsis muaj cov hlau hnyav chromium, piv nrog cov roj teeb nickel-chromium, cov pa phem rau ib puag ncig txo qis heev.
1. Lithium-ion roj teeb
Tam sim no cov roj teeb lithium-ion tau muab faib ua ob pawg: cov roj teeb lithium-ion ua kua (LIBs) thiab cov roj teeb polymer lithium-ion (PLBs).Ntawm lawv, cov kua lithium ion roj teeb hais txog lub roj teeb thib ob uas Li + intercalation compound yog qhov zoo thiab tsis zoo electrodes.Qhov zoo electrode xaiv lithium compound LiCoO2 lossis LiMn2O4, thiab cov electrode tsis zoo xaiv lithium-carbon interlayer compound.Cov roj teeb lithium-ion yog lub zog tsav zoo tshaj plaws rau kev txhim kho nyob rau hauv lub xyoo pua 21st vim lawv cov kev ua haujlwm siab, qhov me me, lub teeb yuag, lub zog siab, tsis muaj kev nco, tsis muaj kuab paug, tsis tshua muaj tus kheej tawm, thiab lub neej ntev.
2. Cov keeb kwm luv luv ntawm lithium-ion roj teeb kev txhim kho
Cov roj teeb lithium thiab lithium ion roj teeb yog cov roj teeb uas muaj zog tshiab tau tsim tiav hauv xyoo pua 20th.Qhov tsis zoo electrode ntawm lub roj teeb no yog hlau lithium, thiab qhov zoo electrode yog MnO2, SOCL2, (CFx)n, thiab lwm yam. Nws tau muab tso rau hauv kev siv tswv yim hauv xyoo 1970s.Vim nws lub zog siab, lub roj teeb muaj zog, kev ua haujlwm kub ntau, thiab lub neej ntev cia, nws tau siv dav hauv cov tub rog thiab cov khoom siv hluav taws xob hauv pej xeem, xws li xov tooj ntawm tes, khoos phis tawj portable, video koob yees duab, koob yees duab, thiab lwm yam. hloov cov roj teeb ib txwm muaj..
3. Kev loj hlob zeem muag ntawm lithium-ion roj teeb
Cov roj teeb lithium-ion tau siv dav hauv cov khoom siv thauj khoom xws li lub khoos phis tawj khoos phis tawj, lub koob yees duab video, thiab kev sib txuas lus hauv xov tooj vim lawv qhov tshwj xeeb ua haujlwm zoo.Lub peev xwm loj-muaj peev xwm lithium-ion roj teeb tsim tam sim no tau sim hauv cov tsheb hluav taws xob, thiab nws tau kwv yees tias nws yuav dhau los ua ib qho ntawm cov khoom siv hluav taws xob tseem ceeb rau tsheb hluav taws xob hauv xyoo pua 21st, thiab yuav siv rau hauv satellites, aerospace thiab lub zog cia. .
4. Lub hauv paus muaj nuj nqi ntawm lub roj teeb
(1) Qhib Circuit Court voltage ntawm lub roj teeb
(2) Internal tsis kam ntawm lub roj teeb
(3) Kev khiav hauj lwm voltage ntawm lub roj teeb
(4) Kev them nqi hluav taws xob
Lub charger voltage yog hais txog qhov hluav taws xob siv rau ob qho kawg ntawm lub roj teeb los ntawm cov khoom siv hluav taws xob sab nraud thaum lub roj teeb thib ob raug them.Cov txheej txheem yooj yim ntawm kev them nyiaj suav nrog kev them nyiaj tam sim no tsis tu ncua thiab qhov hluav taws xob tsis tu ncua.Feem ntau, kev them nyiaj tam sim no tsis tu ncua yog siv, thiab nws cov yam ntxwv yog tias qhov them tam sim no ruaj khov thaum lub sijhawm them nyiaj.Raws li kev them nyiaj nce mus, cov khoom siv tau zoo, cov tshuaj tiv thaiv electrode tau txo qis, thiab cov polarization ntawm lub cev muaj zog maj mam nce.
(5) Roj teeb muaj peev xwm
Lub peev xwm roj teeb yog hais txog tus nqi hluav taws xob tau txais los ntawm lub roj teeb, uas feem ntau qhia los ntawm C, thiab chav tsev feem ntau qhia los ntawm Ah lossis mAh.Lub peev xwm yog lub hom phiaj tseem ceeb ntawm cov roj teeb hluav taws xob ua haujlwm.Lub peev xwm ntawm lub roj teeb feem ntau yog muab faib ua lub peev xwm theoretical, lub peev xwm ua tau zoo thiab muaj peev xwm ntsuas.
Lub peev xwm roj teeb yog txiav txim siab los ntawm lub peev xwm ntawm cov electrodes.Yog hais tias lub peev xwm ntawm cov electrodes tsis sib npaug, lub peev xwm ntawm lub roj teeb nyob ntawm cov electrode nrog lub peev xwm me me, tab sis nws tsis yog los ntawm qhov sib npaug ntawm qhov muaj peev xwm ntawm qhov zoo thiab tsis zoo electrodes.
(6) Cia muaj nuj nqi thiab lub neej ntawm lub roj teeb
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm cov khoom siv hluav taws xob yog tias lawv tuaj yeem tso hluav taws xob hluav taws xob thaum siv thiab khaws hluav taws xob thaum tsis siv.Lub npe hu ua kev ua haujlwm cia yog lub peev xwm los tswj kev them nyiaj rau lub roj teeb thib ob.
Hais txog lub roj teeb thib ob, kev pabcuam lub neej yog qhov tseem ceeb rau kev ntsuas lub roj teeb ua haujlwm.Lub roj teeb thib ob yog them thiab tawm ib zaug, hu ua lub voj voog (lossis lub voj voog).Raws li qee qhov kev them nqi thiab kev tso tawm, tus naj npawb ntawm kev them nqi thiab tawm lub sijhawm uas lub roj teeb tuaj yeem tiv taus ua ntej lub roj teeb muaj peev xwm ncav cuag ib qho nqi hu ua lub voj voog ua haujlwm ntawm lub roj teeb thib ob.Lithium-ion roj teeb muaj kev ua haujlwm zoo heev thiab lub neej voj voog ntev.
Lithium roj teeb - Nta
A. Muaj zog ceev
Qhov hnyav ntawm lithium-ion roj teeb yog ib nrab ntawm cov nickel-cadmium lossis nickel-hydrogen roj teeb ntawm tib lub peev xwm, thiab qhov ntim yog 40-50% ntawm cov nickel-cadmium thiab 20-30% ntawm cov roj teeb nickel-hydrogen. .
B. High Voltage
Kev khiav hauj lwm voltage ntawm ib lub roj teeb lithium-ion yog 3.7V (tus nqi nruab nrab), uas yog sib npaug rau peb lub roj teeb nickel-cadmium lossis npib tsib xee-hlau hydride roj teeb txuas nrog hauv series.
C. Tsis muaj kuab paug
Cov roj teeb lithium-ion tsis muaj cov hlau tsis zoo xws li cadmium, lead, thiab mercury.
D. Tsis muaj hlau lithium
Cov roj teeb lithium-ion tsis muaj cov roj ntsha lithium thiab yog li tsis raug raws li cov cai xws li kev txwv tsis pub nqa cov roj teeb lithium ntawm cov neeg caij dav hlau.
E. Lub neej voj voog siab
Raws li ib txwm muaj, cov roj teeb lithium-ion tuaj yeem muaj ntau dua 500 lub voj voog them nqi.
F. Tsis nco cuam tshuam
Cov nyhuv nco yog hais txog qhov tshwm sim uas lub peev xwm ntawm nickel-cadmium roj teeb raug txo thaum lub sijhawm them thiab tawm mus.Cov roj teeb lithium-ion tsis muaj qhov cuam tshuam no.
G. ceev them
Siv cov khoom siv hluav taws xob tas li thiab qhov hluav taws xob tsis tu ncua nrog lub ntsuas hluav taws xob ntawm 4.2V tuaj yeem them tag nrho cov roj teeb lithium-ion hauv ib mus rau ob teev.
Lithium roj teeb - Lub hauv paus ntsiab lus thiab cov qauv ntawm Lithium roj teeb
1. Cov qauv thiab cov qauv kev ua haujlwm ntawm lithium ion roj teeb: Lub roj teeb lithium ion yog hais txog lub roj teeb thib ob uas muaj ob lub tebchaw uas tuaj yeem thim rov qab intercalate thiab deintercalate lithium ions raws li qhov zoo thiab tsis zoo electrodes.Cov neeg hu cov roj teeb lithium-ion no nrog cov txheej txheem tshwj xeeb, uas tso siab rau kev hloov pauv ntawm lithium ions ntawm qhov zoo thiab qhov tsis zoo electrodes kom ua tiav cov roj teeb them thiab tawm haujlwm, raws li "roj lub rooj zaum roj teeb", feem ntau hu ua "lithium roj teeb" .Siv LiCoO2 ua piv txwv: (1) Thaum lub roj teeb raug them, lithium ions yog deintercalated los ntawm qhov zoo electrode thiab intercalated nyob rau hauv qhov tsis zoo electrode, thiab vice versa thaum tso tawm.Qhov no yuav tsum muaj cov electrode nyob rau hauv lub xeev ntawm lithium intercalation ua ntej sib dhos.Feem ntau, lithium intercalation hloov pauv hlau oxide nrog lub peev xwm ntau dua 3V txheeb ze rau lithium thiab ruaj khov hauv huab cua raug xaiv raws li qhov zoo electrode, xws li LiCoO2, LiNiO2, LiMn2O4, LiFePO4.(2) Rau cov ntaub ntawv uas tsis zoo electrodes, xaiv intercalable lithium compounds uas nws muaj peev xwm nyob ze lithium lithium muaj peev xwm.Piv txwv li, ntau yam khoom siv carbon muaj xws li ntuj graphite, hluavtaws graphite, carbon fiber, mesophase kheej kheej carbon, thiab lwm yam thiab hlau oxides, xws li SnO, SnO2, Tin composite oxide SnBxPyOz (x = 0.4 ~ 0.6, y = 0.6 ~ 0.4, z = (2 + 3x + 5y) / 2) thiab lwm yam.
lithium roj teeb
2. Lub roj teeb feem ntau muaj xws li: zoo, tsis zoo, electrolyte, cais, zoo txhuas, tsis zoo phaj, nruab nrab davhlau ya nyob twg, insulating khoom (insulator), kev ruaj ntseg valve (safevent), sealing nplhaib (gasket), PTC (zoo kub tswj davhlau ya nyob twg), roj teeb rooj.Feem ntau, tib neeg txhawj xeeb txog qhov zoo electrode, qhov tsis zoo electrode, thiab electrolyte.
lithium roj teeb
Lithium-ion roj teeb qauv sib piv
Raws li cov khoom siv cathode sib txawv, nws tau muab faib ua hlau lithium, cobalt lithium, manganese lithium, thiab lwm yam.;
Los ntawm cov qauv kev faib tawm, nws feem ntau muab faib ua cylindrical thiab square, thiab polymer lithium ions kuj tuaj yeem ua rau txhua yam duab;
Raws li cov khoom siv hluav taws xob sib txawv siv hauv cov roj teeb lithium-ion, cov roj teeb lithium-ion tuaj yeem muab faib ua ob pawg: cov roj teeb lithium-ion ua kua (LIB) thiab cov roj teeb lithium-ion solid-state.PLIB) yog ib hom roj teeb uas muaj zog lithium-ion.
electrolyte
Plhaub/Package Barrier Current Collector
Lithium-ion roj teeb Liquid stainless hlau, txhuas 25μPE tooj liab ntawv nyiaj thiab txhuas ntawv ci polymer lithium-ion roj teeb colloidal polymer aluminium / PP zaj duab xis tsis muaj teeb meem lossis ib qho μPE tooj liab ntawv ci thiab txhuas ntawv ci
Lithium roj teeb - Lub luag haujlwm ntawm lithium ion roj teeb
1. Muaj zog ceev
Piv nrog NI / CD lossis NI / MH roj teeb ntawm tib lub peev xwm, lithium-ion roj teeb yog qhov hnyav dua, thiab lawv lub zog tshwj xeeb yog 1.5 txog 2 npaug ntawm ob hom roj teeb.
2. High voltage
Cov roj teeb lithium-ion siv cov khoom siv hluav taws xob zoo heev-muaj lithium electrodes kom ua tiav qhov ntsuas hluav taws xob siab li 3.7V, uas yog peb npaug ntawm qhov hluav taws xob ntawm NI / CD lossis NI / MH roj teeb.
3. Non-polluting, environmentally friendly
4. Lub neej voj voog ntev
Lub neej ncua ntev tshaj 500 zaug
5. Muaj peev xwm thauj khoom siab
Cov roj teeb lithium-ion tuaj yeem tso tawm tsis tu ncua nrog cov tam sim no loj, kom lub roj teeb no tuaj yeem siv rau hauv cov khoom siv hluav taws xob siab xws li koob yees duab thiab khoos phis tawj laptop.
6. Kev ruaj ntseg zoo heev
Vim yog kev siv cov ntaub ntawv zoo heev anode, qhov teeb meem ntawm lithium dendrite kev loj hlob thaum lub sij hawm them roj teeb tau kov yeej, uas zoo heev txhim kho kev nyab xeeb ntawm lithium-ion roj teeb.Tib lub sijhawm, cov khoom siv tshwj xeeb rov qab tau raug xaiv los ua kom muaj kev nyab xeeb ntawm lub roj teeb thaum siv.
Lithium roj teeb - Lithium ion roj teeb them txoj kev
Txoj Kev 1. Ua ntej lub roj teeb lithium-ion tawm ntawm lub Hoobkas, cov chaw tsim khoom tau ua tiav kev kho mob ua ntej thiab them ua ntej, yog li cov roj teeb lithium-ion muaj lub zog seem, thiab cov roj teeb lithium-ion raug them raws li lub sijhawm hloov.Lub sijhawm hloov kho no yuav tsum tau ua tiav 3 mus rau 5 zaug.Tso tawm.
Txoj Kev 2. Ua ntej them, lub roj teeb lithium-ion tsis tas yuav tsum tau tso tawm tshwj xeeb.Kev tso tawm tsis raug yuav ua rau lub roj teeb puas.Thaum them nyiaj, sim siv qeeb them thiab txo kom them ceev;lub sijhawm yuav tsum tsis pub tshaj 24 teev.Tsuas yog tom qab lub roj teeb tau dhau los ntawm peb mus rau tsib qhov kev them nqi tag nrho thiab lub voj voog tawm yuav nws cov tshuaj sab hauv yuav ua kom tiav "tsim" kom siv tau zoo.
Txoj kev 3. Thov siv tus thawj charger los yog lub reputable hom charger.Rau cov roj teeb lithium, siv lub charger tshwj xeeb rau cov roj teeb lithium thiab ua raws li cov lus qhia.Txwv tsis pub, lub roj teeb yuav puas los yog muaj kev pheej hmoo.
Txoj Kev 4. Lub roj teeb uas nyuam qhuav yuav yog lithium ion, yog li thawj 3 mus rau 5 zaug ntawm kev them nqi feem ntau hu ua lub sijhawm hloov kho, thiab nws yuav tsum tau them rau ntau tshaj 14 teev kom ntseeg tau tias cov haujlwm ntawm lithium ions tau ua tiav.Cov roj teeb lithium-ion tsis muaj kev nco, tab sis muaj zog inertness.Lawv yuav tsum tau ua kom tiav kom ntseeg tau tias qhov ua tau zoo tshaj plaws hauv kev siv yav tom ntej.
Txoj Kev 5. Lub roj teeb lithium-ion yuav tsum siv lub charger tshwj xeeb, txwv tsis pub nws yuav tsis ncav cuag lub xeev saturation thiab cuam tshuam rau nws txoj haujlwm.Tom qab them nyiaj, tsis txhob muab tso rau ntawm lub charger rau ntau tshaj 12 teev, thiab cais lub roj teeb ntawm cov khoom siv hluav taws xob hauv lub xov tooj ntawm tes thaum nws tsis siv sijhawm ntev.
Lithium roj teeb - siv
Nrog rau txoj kev loj hlob ntawm microelectronics technology nyob rau hauv lub xyoo pua nees nkaum, cov khoom siv me me tau nce ib hnub dhau ib hnub, uas ua rau muaj kev xav tau siab rau kev siv hluav taws xob.Tom qab ntawd cov roj teeb lithium tau nkag mus rau theem ua haujlwm loj.
Nws yog thawj zaug siv hauv plawv pacemakers.Vim hais tias tus kheej-tso tus nqi ntawm lithium roj teeb yog tsawg heev, qhov paug tawm voltage yog ntxhab.Nws ua rau nws tuaj yeem cog cov pacemaker rau hauv tib neeg lub cev rau lub sijhawm ntev.
Cov roj teeb lithium feem ntau muaj qhov nominal voltage siab dua 3.0 volts thiab tsim nyog rau cov khoom siv hluav taws xob sib xyaw ua ke.Manganese dioxide roj teeb tau dav siv hauv computers, tshuab xam zauv, koob yees duab, thiab saib.
Daim ntawv thov piv txwv
1. Muaj ntau lub pob roj teeb uas hloov kho cov roj teeb pob: xws li cov khoom siv hauv phau computers.Tom qab kho, nws pom tias thaum lub roj teeb pob no puas lawm, tsuas yog cov roj teeb ib leeg muaj teeb meem.Nws tuaj yeem hloov tau nrog ib lub roj teeb lithium uas tsim nyog.
2. Ua ib lub teeb ci siab me me Tus sau ib zaug siv ib zaug xwb 3.6V1.6AH lithium roj teeb nrog lub raj dawb super-brightness lub teeb-emitting raj los ua lub teeb me me, uas yooj yim rau siv, compact thiab zoo nkauj.Thiab vim tias lub roj teeb muaj peev xwm loj, nws tuaj yeem siv rau ib nrab ib teev txhua hmo nyob rau nruab nrab, thiab nws tau siv ntau tshaj ob lub hlis yam tsis tau them nyiaj.
3. Alternative 3V fais fab mov
Vim hais tias ib leeg-cell lithium roj teeb voltage yog 3.6V.Yog li ntawd, tsuas yog ib lub roj teeb lithium tuaj yeem hloov ob lub roj teeb zoo tib yam los muab lub zog rau cov khoom siv hauv tsev me xws li xov tooj cua, walkmans, koob yees duab, thiab lwm yam, uas tsis yog lub teeb hauv qhov hnyav xwb, tab sis kuj siv tau ntev.
Lithium-ion roj teeb anode khoom - lithium titanate
Nws tuaj yeem ua ke nrog lithium manganate, ternary cov ntaub ntawv lossis lithium hlau phosphate thiab lwm yam ntaub ntawv zoo los tsim 2.4V lossis 1.9V lithium ion roj teeb theem nrab.Tsis tas li ntawd, nws kuj tseem siv tau los ua ib qho zoo electrode los tsim 1.5V lithium roj teeb nrog hlau lithium lossis lithium alloy tsis zoo electrode Secondary roj teeb.
Vim tias muaj kev nyab xeeb siab, kev ruaj ntseg siab, lub neej ntev thiab cov yam ntxwv ntsuab ntawm lithium titanate.Nws tuaj yeem kwv yees tias cov khoom siv lithium titanate yuav dhau los ua cov khoom siv hluav taws xob tsis zoo ntawm lub cim tshiab ntawm lithium ion roj teeb hauv 2-3 xyoos thiab siv dav hauv cov tsheb tshiab, hluav taws xob maus taus thiab cov uas xav tau kev nyab xeeb siab, ruaj khov thiab lub voj voog ntev.teb daim ntawv thov.Kev khiav hauj lwm voltage ntawm lithium titanate roj teeb yog 2.4V, qhov siab tshaj plaws voltage yog 3.0V, thiab them tam sim no mus txog 2C.
Lithium titanate roj teeb muaj pes tsawg leeg
Cov electrode zoo: lithium hlau phosphate, lithium manganate lossis ternary khoom, lithium nickel manganate.
Tsis zoo electrode: lithium titanate khoom.
Barrier: Tam sim no lithium roj teeb barrier nrog carbon raws li qhov tsis zoo electrode.
Electrolyte: Lithium roj teeb electrolyte nrog carbon raws li qhov tsis zoo electrode.
Cov ntaub ntawv roj teeb: Lithium roj teeb rooj nrog cov pa roj carbon zoo li cov electrode tsis zoo.
Qhov zoo ntawm lithium titanate roj teeb: xaiv lub tsheb hluav taws xob los hloov tsheb roj yog qhov kev xaiv zoo tshaj plaws los daws cov teeb meem hauv nroog.Ntawm lawv, lithium-ion fais fab roj teeb tau nyiam cov neeg tshawb fawb ntau.Txhawm rau ua kom tau raws li cov kev xav tau ntawm cov tsheb fais fab rau cov roj teeb lithium-ion fais fab, kev tshawb fawb thiab kev tsim cov khoom tsis zoo nrog kev nyab xeeb siab, kev ua haujlwm zoo thiab kev ua haujlwm ntev yog nws qhov kub thiab qhov nyuaj.
Kev lag luam lithium-ion roj teeb tsis zoo electrodes feem ntau yog siv cov ntaub ntawv carbon, tab sis tseem muaj qee qhov tsis zoo hauv daim ntawv thov ntawm lithium roj teeb uas siv cov pa roj carbon ua cov electrode tsis zoo:
1. Lithium dendrites tau yooj yim precipitated thaum lub sij hawm overcharge, ua rau lub luv luv Circuit Court ntawm lub roj teeb thiab cuam tshuam rau kev nyab xeeb ntawm lub lithium roj teeb;
2. Nws yog ib qho yooj yim los tsim SEI zaj duab xis, uas ua rau tsis tshua muaj nqi pib thiab tawm lub zog thiab loj irreversible muaj peev xwm;
3. Qhov ntawd yog, lub platform voltage ntawm cov ntaub ntawv carbon yog tsawg (ze rau cov hlau lithium), thiab nws yog ib qho yooj yim ua rau decomposition ntawm electrolyte, uas yuav ua rau muaj kev ruaj ntseg txaus ntshai.
4. Nyob rau hauv cov txheej txheem ntawm lithium ion insertion thiab extraction, lub ntim hloov tau zoo heev, thiab lub voj voog stability tsis zoo.
Piv nrog cov ntaub ntawv carbon, spinel-type Li4Ti5012 muaj qhov zoo:
1. Nws yog cov khoom siv xoom-strain thiab muaj kev ua haujlwm zoo;
2. Qhov hluav taws xob tawm yog ruaj khov, thiab cov electrolyte yuav tsis decompose, kev txhim kho kev nyab xeeb ntawm lithium roj teeb;
3. Muab piv nrog cov khoom siv carbon anode, lithium titanate muaj siab lithium ion diffusion coefficient (2 * 10-8cm2 / s), thiab tuaj yeem them thiab tawm ntawm tus nqi siab.
4. Lub peev xwm ntawm lithium titanate yog siab dua li ntawm cov hlau ntshiab lithium, thiab nws tsis yooj yim los tsim cov lithium dendrites, uas muab lub hauv paus rau kev ruaj ntseg ntawm lithium roj teeb.
kev ruaj ntseg Circuit Court
Nws muaj ob lub teb cuam tshuam transistors thiab ib qho kev saib xyuas kev sib koom ua ke thaiv S-8232.Lub overcharge tswj tube FET2 thiab lub overdischarge tswj raj FET1 yog txuas nrog nyob rau hauv series mus rau lub Circuit Court, thiab lub roj teeb voltage yog saib xyuas thiab tswj los ntawm cov txij nkawm IC.Thaum lub roj teeb voltage nce mus rau 4.2V, lub overcharge tu tube FET1 raug tua, thiab them nyiaj raug txiav.Txhawm rau kom tsis txhob ua haujlwm tsis zoo, lub sijhawm ncua sij hawm capacitor feem ntau yog ntxiv rau sab nraud Circuit Court.Thaum lub roj teeb nyob rau hauv lub xeev tawm, lub roj teeb voltage poob rau 2.55.
Post lub sij hawm: Mar-30-2023