Cov ntaub ntawv ntim roj teeb lithium yog peb-legged, uas yog, peb lub tog raj kheej siv dav tshaj plaws, cov pob muag muag thiab cov squares. Peb daim ntawv ntim khoom muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, thiab tuaj yeem xaiv raws li lawv siv.

1. Cylindrical

Cylindrical lithium roj teeb yog thawj zaug tsim los ntawm SONY lub tuam txhab nyob rau hauv Nyiv nyob rau hauv 1992. Vim hais tias 18650 cylindrical lithium roj teeb muaj keeb kwm ntev, kev ua lag luam nkag mus yog siab. Cylindrical lithium roj teeb txais cov txheej txheem kev ua kom muaj zog, qib siab ntawm automation, thiab cov khoom lag luam ruaj khov thiab tus nqi qis. Muaj ntau hom cylindrical lithium roj teeb, xws li 17490, 14650, 18650, 26650,

21700 thiab lwm yam. Cylindrical lithium roj teeb yog nrov ntawm cov tuam txhab roj teeb lithium hauv Nyiv thiab Kaus Lim Qab Teb.

Qhov zoo ntawm cylindrical winding hom muaj xws li paub tab winding txheej txheem, qib siab ntawm automation, siab ntau lawm efficiency, zoo sib xws, thiab tus nqi qis. Qhov tsis zoo suav nrog kev siv qhov chaw tsawg los ntawm cov duab cylindrical thiab qhov kub thiab txias tshwm sim los ntawm qhov tsis zoo radial thermal conductivity. Tos. Vim qhov tsis zoo radial thermal conductivity ntawm lub cylindrical roj teeb, tus naj npawb ntawm winding lem ntawm lub roj teeb yuav tsum tsis txhob ntau dhau (tus naj npawb ntawm winding lem ntawm 18650 roj teeb feem ntau yog hais txog 20 lem), yog li lub peev xwm monomer me me, thiab ib tug loj npaum li cas ntawm cov roj teeb yuav tsum tau rau daim ntawv thov nyob rau hauv hluav taws xob tsheb. Monomers tsim cov roj teeb modules thiab cov roj teeb pob, uas ua rau kom poob kev sib txuas thiab kev tswj tsis yooj yim.

Daim duab 1. 18650 cylindrical roj teeb

Ib lub tuam txhab raug rau ntim cylindrical yog Nyiv Panasonic. Xyoo 2008, Panasonic thiab Tesla tau koom tes thawj zaug, thiab 18650 lithium cobalt oxide roj teeb tau txais los ntawm Tesla thawj tus qauv Roadster. Hauv 2014, Panasonic tshaj tawm kev koom tes nrog Tesla los tsim Gigafactory, lub Hoobkas roj teeb super, thiab kev sib raug zoo ntawm ob mus ntxiv. Panasonic ntseeg tias lub tsheb fais fab yuav tsum siv 18650 roj teeb, yog li txawm tias ib lub roj teeb tsis ua haujlwm, nws yuav tsis cuam tshuam rau kev ua haujlwm ntawm tag nrho cov kab ke, raws li pom hauv daim duab 2.

daim duab

Daim duab 2. Vim li cas thiaj xaiv 18650 cylindrical roj teeb

Kuj tseem muaj cov lag luam loj tsim cov roj teeb lithium cylindrical hauv Suav teb. Piv txwv li, BAK roj teeb, Jiangsu Zhihang, Tianjin Lishen, Shanghai Delangeng thiab lwm yam lag luam yog nyob rau hauv txoj hauj lwm ntawm cylindrical lithium roj teeb nyob rau hauv Suav teb. Hlau-lithium roj teeb thiab Yinlong ceev-them tsheb npav siv lithium titanate roj teeb, ob qho tib si hauv daim ntawv ntim cylindrical.

Table 1: Kev txheeb xyuas ntawm lub peev xwm ntawm 10 lub tuam txhab roj teeb cylindrical saum toj kawg nkaus thiab lawv cov qauv sib raug raws li kev siv zog ib leeg hauv 2017

daim duab

2. Lub hnab mos

Cov ntaub ntawv tseem ceeb siv hauv cov roj teeb lithium-cov khoom siv hluav taws xob zoo, cov khoom siv hluav taws xob tsis zoo thiab cov khoom sib cais-tsis txawv ntau ntawm cov khoom siv hlau-plhaub thiab txhuas-plhaub lithium roj teeb. Qhov sib txawv loj tshaj plaws yog cov khoom ntim yooj yim (aluminium-yas composite film). Nws yog cov khoom siv tseem ceeb tshaj plaws thiab cov txheej txheem nyuaj hauv cov roj teeb lithium mos. Cov ntaub ntawv ntim tau yooj yim feem ntau muab faib ua peb txheej, uas yog txheej txheej txheej txheej txheej (feem ntau yog txheej txheej tiv thaiv txheej txheej ntawm nylon BOPA lossis PET), txheej txheej txheej (txheej txheej txheej hauv nruab nrab) thiab txheej txheej sab hauv (multifunctional high barrier txheej. ).

Daim duab 3. Aluminium yas zaj duab xis qauv

Cov khoom ntim thiab cov qauv ntawm lub hnab ntim khoom muab rau lawv ntau yam zoo. 1) Kev nyab xeeb kev ua haujlwm zoo. Lub roj teeb muag muag yog ntim nrog aluminium-yas zaj duab xis hauv cov qauv. Thaum muaj teeb meem kev nyab xeeb tshwm sim, cov roj teeb muag muag feem ntau yuav tawg thiab tawg, thiab yuav tsis tawg. 2) Lub teeb yuag, qhov hnyav ntawm lub pob muag roj teeb yog 40% sib zog dua li ntawm lub plhaub steel lithium roj teeb uas muaj peev xwm tib yam, thiab 20% sib zog dua li ntawm cov roj teeb txhuas lithium. 3) Kev ua haujlwm me me, kev tiv thaiv sab hauv ntawm lub pob muag roj teeb yog me dua li ntawm lithium roj teeb, uas tuaj yeem txo qhov kev siv tus kheej ntawm lub roj teeb. 4) Lub voj voog kev ua tau zoo, lub voj voog lub neej ntawm lub pob muag roj teeb ntev dua, thiab kev lwj tom qab 100 lub voj voog yog 4% mus rau 7% tsawg dua li ntawm cov ntaub ntawv txhuas. 5) Cov qauv tsim yog hloov tau, cov duab tuaj yeem hloov mus rau txhua yam, nws tuaj yeem ua nyias, thiab cov qauv ntawm tes tshiab tuaj yeem tsim tau raws li cov neeg siv khoom xav tau. Qhov tsis zoo ntawm cov roj teeb pob mos yog qhov tsis sib xws, tus nqi siab, yooj yim to taub, thiab kev ua haujlwm siab.

daim duab

Daim duab 4. Mos pob roj teeb muaj pes tsawg leeg

Cov tuam txhab roj teeb hauv ntiaj teb xws li Kaus Lim Qab Teb LG thiab Nyij Pooj ASEC tau tsim cov roj teeb hluav taws xob ntau, uas yog siv rau hauv cov qauv hluav taws xob thiab plug-in hybrid qauv ntawm cov tuam txhab tsheb loj xws li Nissan, Chevrolet, thiab Ford, suav nrog. ntiaj teb no peb loj tshaj plaws ntau lawm thiab muag qauv. Nplooj thiab Volt. kuv lub teb chaws lub roj teeb loj loj Wanxiang thiab cov latecomers Funeng Technology, Yiwei Lithium Energy, Polyfluoride, thiab Gateway Power kuj tau pib loj hlob ntawm cov roj teeb mos los muab cov tuam txhab tsheb loj xws li BAIC thiab SAIC.

3. Square roj teeb

Qhov nrov ntawm cov roj teeb square yog siab heev hauv Suav teb. Nrog kev nce ntawm cov roj teeb hluav taws xob hauv tsheb hauv xyoo tas los no, qhov tsis sib xws ntawm cov tsheb thauj khoom thiab cov roj teeb muaj peev xwm tau dhau los ua qhov tseem ceeb. Cov tuam txhab hluav taws xob hauv tsev feem ntau siv cov roj teeb txhuas-plhaub square nrog cov roj teeb siab zog. , Vim hais tias cov qauv ntawm cov roj teeb square yog qhov yooj yim, tsis zoo li cov roj teeb cylindrical, uas siv cov hlau tsis muaj zog zoo li lub plhaub thiab cov khoom siv nrog cov khoom siv hluav taws xob tawg, cov khoom siv tag nrho yog lub teeb hauv qhov hnyav thiab kuj muaj zog ceev. Cov roj teeb square feem ntau yog ua los ntawm aluminium alloy, stainless hlau thiab lwm yam ntaub ntawv, thiab kev siv sab hauv ntawm winding los yog lamination txheej txheem, kev tiv thaiv ntawm lub roj teeb yog zoo dua li ntawm aluminium-yas zaj duab xis roj teeb (xws li mos-pob roj teeb), thiab kev nyab xeeb ntawm lub roj teeb kuj yog cylindrical. Hom roj teeb kuj tau txhim kho zoo heev.

Daim duab 5. Square cell qauv

Txawm li cas los xij, txij li cov roj teeb lithium square tuaj yeem hloov kho raws li qhov loj ntawm cov khoom, muaj ntau txhiab tus qauv ntawm lub khw, thiab vim tias muaj ntau tus qauv, cov txheej txheem nyuaj rau kev sib koom ua ke. Tsis muaj teeb meem hauv kev siv cov roj teeb square hauv cov khoom siv hluav taws xob zoo tib yam, tab sis rau cov khoom siv khoom lag luam uas xav tau ntau yam thiab sib npaug, nws yog qhov zoo tshaj plaws los siv cov roj teeb lithium cylindrical, kom cov txheej txheem ntau lawm tau lees paub, thiab nws yooj yim dua los nrhiav kev hloov. yav tom ntej. Roj teeb.

Cov tuam txhab lag luam hauv tsev thiab txawv teb chaws uas siv square raws li cov txheej txheem ntim khoom feem ntau suav nrog Samsung SDI (cov ntawv ntim yog feem ntau square, thiab cov khoom siv hluav taws xob zoo siv ternary NCM thiab NCA cov ntaub ntawv. Nws tau nquag ua raws li kev tsim cov 21700 roj teeb), BYD (lub zog. Cov roj teeb feem ntau yog square aluminium plhaub), cov khoom siv cathode feem ntau yog lithium hlau phosphate, thiab nws kuj tau ua kev tshawb fawb thiab kev tsim kho thiab kev tshwj xeeb ntawm ternary roj teeb), CATL (cov khoom lag luam feem ntau yog square aluminium plhaub roj teeb, thiab cov khoom siv cathode suav nrog. Lithium hlau phosphate thiab ternary lithium hlau phosphate technical routes mas siv nyob rau hauv lub zog cia thiab tsheb npav, CATL pib tag nrho tig mus rau ternary cov ntaub ntawv nyob rau hauv 2015, muab ternary roj teeb pob rau neeg nrog caij tsheb ntawm BMW, Geely thiab lwm yam tuam txhab uas muag), Guoxuan Hi-Tech (feem ntau nyob rau hauv daim ntawv ntawm square ntim, thiab cov khoom zoo electrode suav nrog Lithium hlau phosphate thiab ternary cov ntaub ntawv), TianjinLishen, thiab lwm yam.

Feem ntau, peb lub ntim ntim ntawm cylindrical, square thiab mos pob muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, thiab txhua lub roj teeb muaj nws qhov tseem ceeb. Txoj kev ntim khoom zoo tshaj plaws tuaj yeem txiav txim siab raws li cov khoom siv ntawm lub roj teeb, cov khoom siv daim ntawv thov, cov yam ntxwv ntawm cov khoom, thiab lwm yam nrog rau cov yam ntxwv ntawm daim ntawv ntim. Txawm li cas los xij, txhua hom ntim roj teeb muaj nws tus kheej cov teeb meem thev naus laus zis. Cov roj teeb zoo tsim muaj cov teeb meem nyuaj hauv ntau qhov chaw xws li electrochemistry, tshav kub, hluav taws xob, thiab kev siv tshuab, uas ua rau muaj kev xav tau siab rau cov neeg tsim roj teeb. Cov neeg siv roj teeb lithium tseem xav tau kev siv zog ntxiv!