Kev tshawb fawb txog kev ua tau zoo ntawm kev ntim cov roj teeb lithium-ion hloov tau?

Cov roj teeb lithium ion yog ib hom tshiab ntawm cov roj teeb uas muaj peev xwm rov qab tau uas tau tsim nyob rau hauv kaum xyoo dhau los. Lawv muaj lub zog tshwj xeeb, tsis muaj kev nco qab, yog ntsuab thiab ib puag ncig tus phooj ywg, thiab muaj qhov tso tawm hluav taws xob peb zaug ntawm nickel cadmium thiab nickel hydrogen roj teeb. Yog li ntawd, lawv tau txais kev saib xyuas thoob plaws txij li thaum lawv pib thiab tau tsim kho sai heev.

Tam sim no, tsuas yog ob peb lub tebchaws tau ua tiav kev lag luam, ntawm cov Nyij Pooj tau ua qhov zoo tshaj plaws hauv kev ua lag luam. Tuam Tshoj yog lub teb chaws loj tshaj plaws tsim nyob rau hauv industrialization kev loj hlob ntawm lithium-ion roj teeb. Tom qab xyoo ntawm txoj kev loj hlob, tshwj xeeb tshaj yog nyob rau hauv lub koom haum txhawb nqa ntawm cov kev cai ntawm lub teb chaws, lithium-ion roj teeb nyob rau hauv Tuam Tshoj tau ua tiav sai, thiab ntau yam kev ua tau zoo ntawm cov khoom muaj kev vam meej. Cov roj teeb lithium-ion roj teeb ntau lawm tau ua kom zoo dua qub, thiab qib ntawm kev lag luam yog nce, ua kom muaj kev sib tw nrog cov teb chaws tsim hauv ntiaj teb. Nrog ntau cov khoom siv ntuj tsim thiab cov nqi zog qis, kev lag luam suav lithium-ion roj teeb muaj qhov zoo tshaj plaws hauv kev sib tw thoob ntiaj teb.

 

Lithium ion roj teeb yog undoubtedly ib tiam tshiab ntawm cov roj teeb uas muaj cov ntsiab lus thev naus laus zis thiab kev siv dav. Lawv muaj qhov ntim siab rau lub zog piv thiab qhov loj rau lub zog piv, yog cov khoom siv rov qab thiab tsis muaj kuab lom, thiab muaj peb qhov zoo hauv kev txhim kho tam sim no ntawm kev lag luam roj teeb. Lawv hu ua "kev cog lus tshuaj muaj zog tshaj plaws". Tam sim no, muaj ob hom lithium-ion roj teeb technologies: kua lithium-ion roj teeb nrog hlau plhaub thiab polymer lithium-ion roj teeb. Lub plhaub ntawm cov roj teeb lithium-ion feem ntau yog cov hlau lossis txhuas plhaub, thiab nws cov yas tsis zoo li cov roj teeb polymer lithium-ion. Txawm li cas los xij, kev tsim cov txheej txheem ntawm polymer lithium-ion roj teeb yog qhov nyuaj, tshwj xeeb tshaj yog tus nqi qis, uas txwv kev lag luam ntawm cov roj teeb no zoo heev. Tus sau thawj zaug txhawb nqa cov roj teeb lithium-ion muag muag, uas yog cov yam ntxwv ntawm cov roj teeb lithium-ion ua kua. Qhov yooj yim electrochemical kev ua tau zoo thiab tshwj xeeb zoo ntawm polymer lithium-ion roj teeb nyob rau hauv cov nqe lus ntawm sab nraud ntim, nrog rau kev siv cov kua electrolytes zoo ib yam li cov kua lithium-ion roj teeb raws li qhov nruab nrab rau lithium ion kis tau tus mob ntawm zoo thiab tsis zoo electrodes, thiab kev siv. ntawm multi-layer yas composite films nyob rau hauv sab nraud ntim. Cov txiaj ntsig zoo ntawm cov roj teeb lithium-ion hloov tau yooj yim yog lawv cov txheej txheem tsim khoom yooj yim, tus nqi qis, thiab cov txiaj ntsig siab, Nws lub hom phiaj yog los hloov kev lag luam rau cov roj teeb polymer lithium-ion thiab sib tw nrog stainless hlau plhaub lithium-ion roj teeb.

Rau tib lub roj teeb loj, lub peev xwm tawm ntawm cov khoom ntim tau yooj yim lithium-ion roj teeb yog li 10% siab dua li ntawm cov roj teeb lithium-ion stainless hlau. Qhov no yog vim qhov sib txawv hauv cov qauv ntawm ob hom roj teeb. Cov laj thawj yog raws li hauv qab no: txheej txheej sab nraud ntawm lub hlwb tom qab kev sib txuas sab hauv hauv cov khoom siv tau yooj yim ntim lithium-ion roj teeb yog lub phaj zoo electrode, thaum txheej txheej sab nraud ntawm cov hlwb tom qab winding nyob rau hauv stainless hlau plhaub roj teeb yog qhov tsis zoo electrode phaj. Raws li kev tsim qauv, cov roj teeb uas hloov tau yooj yim lithium-ion roj teeb muaj cov khoom siv hluav taws xob zoo dua, thiab lub peev xwm tawm ntawm lithium-ion roj teeb yog txiav txim siab los ntawm qhov zoo electrode, yog li lub peev xwm ntawm cov roj teeb ntim tau yooj yim dua li ntawm cov roj teeb stainless hlau. Lub hlwb sab hauv ntawm lub roj teeb tau txais cov qauv sib txawv, uas muaj feem xyuam nrog cov khoom siv hauv lub plhaub. Lub plhaub ntawm cov khoom ntim tau yooj yim lithium-ion roj teeb siv cov khoom nruab nrab. Aluminium-yas ntim zaj duab xis nrog txheej txheej Al foil cais tawm tuaj yeem ua rau tawg ntawm cov ntim mos Al foil cais txheej ntawm qhov tsis tshua muaj peev xwm (kwv yees li 0.05mVVS. Li thaum them tag nrho) yog tias nws los rau hauv kev sib cuag nrog cov roj teeb sab hauv nrog sab nraud tsis zoo electrode phaj, ua rau lub roj teeb tsis ua haujlwm. Yog hais tias lub plhaub stainless hlau roj teeb siv lub roj teeb sab hauv lub cev nrog lub phaj zoo electrode sab nraud, muaj teeb meem vuam ntawm pob ntseg ntawm lub phaj zoo electrode (feem ntau yog ua los ntawm Al sawb) thiab lub plhaub stainless hlau, yog li lub roj teeb sab hauv. cell nrog lub sab nraud tsis zoo electrode phaj feem ntau yog siv. Structurely, hloov tau ntim lithium-ion roj teeb muaj kev sib tw kom muaj peev xwm piv rau stainless hlau plhaub lithium-ion roj teeb.

Lub peev xwm tawm ntawm cov roj teeb lithium-ion hloov tau ntawm qhov kub ntawm 45cc thiab qis kub -10 degree nce mus txog 102.8% thiab 87.8% ntawm qhov muaj peev xwm ntawm chav tsev kub 25 degree, qhia tau hais tias qhov kev ua tau zoo siab thiab qis qis. Txawm li cas los xij, lub peev xwm tawm ntawm stainless hlau plhaub lithium-ion roj teeb ntawm qhov kub siab 45 degree thiab qis kub -10 degree nce mus txog 103.2% thiab 93.4% ntawm lub peev xwm ntawm chav tsev kub 25 degree. Raws li pom nyob rau hauv daim duab, qhov tso tawm muaj peev xwm tuav tau tus nqi hloov pauv ntawm cov roj teeb lithium-ion ntawm qhov kub thiab txias yog ze rau ntawm stainless hlau plhaub lithium-ion roj teeb ntawm qhov kub thiab txias.

Lub roj teeb lithium-ion ua los ntawm kev hloov lub plhaub zoo li qub nrog cov khoom siv aluminium-yas composite zaj duab xis ntim plhaub muaj kev ua haujlwm zoo rau kev ruaj ntseg. Cov qauv, cov khoom siv, thiab kev ua haujlwm ntawm aluminium-yas composite zaj duab xis thiab ncej pob ntseg sealant tuaj yeem cais tawm cov kev cuam tshuam sab hauv thiab sab nraud ntawm lub roj teeb. Aluminium-yas composite zaj duab xis tuaj yeem ua tau zoo sealing muaj nuj nqi zoo ib yam li lub plhaub hlau.
Kev ntsuam xyuas ntawm lwm yam kev ntsuas kev ua tau zoo xws li kev cia khoom, kev ua haujlwm tawm ntawm tus kheej, thiab ntau yam kev nyab xeeb ntawm kev hloov pauv ntawm cov roj teeb lithium-ion tau ua tiav, thiab cov khoom lag luam tau ua tiav raws li cov kev cai ntawm lub teb chaws tus qauv "General Specification rau Lithium ion roj teeb rau Cellular Phones GB/T18287-2000" kuaj. Cov khoom ntim tau yooj yim lithium-ion tam sim no tab tom sim ua lag luam, feem ntau yog siv hauv MP3, wireless headphones, tsheb DVD thiab lwm yam kev siv.

Kev tshawb fawb ntawm cov khoom siv hluav taws xob ntawm cov khoom siv tau yooj yim ntim cov lithium-ion roj teeb, xws li tus nqi tso tawm, siab thiab tsis tshua muaj peev xwm paug, thiab roj teeb lub voj voog ruaj khov, tau pom tias cov roj teeb ntim tau yooj yim lithium-ion muaj cov nqi siv ntau heev. Nws txawv ntawm cov roj teeb lithium-ion thiab cov roj teeb polymer lithium-ion. Nws yog ib hom tshiab ntawm lithium-ion roj teeb, uas muaj qhov zoo xws li qhov hnyav hnyav rau lub zog piv, zoo zoo plasticity, thiab cov txheej txheem tsim khoom yooj yim, thiab xav tias yuav ua rau loj.