4680 Nws los

2020 Tesla roj teeb hnub tso tawm 4680 hlwb. Panasonic, LG, Samsung, EVA, Ningde Time thiab lwm lub tuam txhab roj teeb tau nqis peev hauv kev tshawb fawb thiab kev tsim kho. 4680 xav tias yuav dhau los ua Tesla lub roj teeb tseem ceeb ntawm tes, tsav txoj kev loj hlob ntawm kev lag luam sib txuas. 4680 txais yuav cov thev naus laus zis tshiab xws li cov cylindrical loj, cov ncej tag nrho, cov electrode qhuav, thiab lwm yam, uas ua rau lub zog loj dua (5 zaug ntau dua 2170 roj teeb) thiab lub zog (6 npaug ntau dua 2170 roj teeb). Tsis tas li ntawd, nws txo cov nqi ntawm cov roj teeb (14% piv rau 2170 roj teeb), optimizes lub tshav kub dissipation kev ua tau zoo, ntau lawm efficiency, them ceev, lub zog ceev, lub voj voog kev ua tau zoo, thiab lwm yam.

Lub nra tag nrho txo ​​qis hauv kev tiv thaiv, txhim kho lub zog, kev nyab xeeb, kev them nyiaj sai, thiab ua ob npaug ntawm cov txheej txheem laser txiav. Cov roj teeb li niaj zaus tsuas muaj ob lub log, ib qho rau lub davhlau ya nyob twg zoo thiab ib qho rau lub davhlau ya nyob twg tsis zoo. 4680 roj teeb muaj tag nrho cov lugs (lugs txiav tawm ncaj qha los ntawm qhov zoo/tsis zoo davhlau ya nyob twg), uas zoo heev ua rau kom txoj kev tam sim no thiab shortens lub lug spacing. Qhov no txo ​​qhov kev tiv thaiv sab hauv thiab ua rau kom muaj ntau hom kev sib tw. Txij li tus naj npawb ntawm cov lugs ntau dua li cov qauv tsim, ntau cov txheej txheem laser txiav yuav tsum tau ua.

Qhov zoo ntawm 4680:

Lub 4680 lub tog raj kheej loj muaj qhov hloov tau zoo dua nrog cov npib tsib xee siab, txhawb txoj kev loj hlob ntawm kev lag luam nickel siab. Cov khoom siv lithium hlau muaj tus nqi qis dua thiab kev nyab xeeb dua kev ua haujlwm, tsis tu ncua squeezing lub lag luam feem ntawm ternary khoom. Loj cylindrical hlwb muaj kev hloov tau zoo dua nrog cov npib tsib xee siab, thiab Tesla txais cov khoom siv siab nickel NCM811 cathode, uas yuav pab txhim kho kev lag luam siab nickel.

4680 loj cylindrical thiab silicon cathode zoo adaptability: silicon cathode theoretical siab tshaj plaws roj teeb muaj peev xwm mus txog 4200Wh / kg, ntau dua li graphite 372Wh / kg. tesla thawj tiam 4680 hlwb tsis siv silicon cathode, vim hais tias tesla thawj foray rau hauv lub teb ntawm roj teeb hlwb, tsis siv heev radical tsim.

1. cylindrical roj teeb kev txhim kho keeb kwm tshuaj xyuas

Sony:tus neeg tsim khoom ntxov tshaj plaws, thaum kawg tau thim tawm ntawm kev lag luam. 1992 invented lithium-ion roj teeb, ib zaug qhia rau ultra-siab zog ceev crushed cov tsoos nickel-hlau hydride roj teeb. Xyoo 1994 Sony tau dhau los ua lub chaw tsim khoom lag luam loj tshaj plaws ntawm Dell lub chaw tsim khoom roj teeb. Xyoo 2006 lub rooj sib tham ntawm Dell laptop hluav taws, Sony rov qab 10 lab roj teeb. Thiab tom qab ntawd qhov nce ntawm South Kauslim thiab Tuam Tshoj roj teeb manufacturers, Sony yog tob hauv qhov poob mre. 2016 muag lithium lag luam.

Panasonic:kev sib tw ua tiav nrog Tesla. 1994 kev tshawb fawb thiab kev loj hlob ntawm lithium-ion roj teeb, 1997 Toyota Prius siv Panasonic cylindrical 18650 roj teeb, 2008 tau txais Sanyo Electric, thiab muab Tesla Roasder. 2010 kev hloov pauv ntawm cov roj teeb hluav taws xob thiab kev sib koom hauv Tesla, 2014 US Hoobkas, thiab Tesla kev sib koom ua tiav.

LG:Tesla muaj lub sijhawm siab. Xyoo 1999, kev tsim khoom loj ntawm 18650 roj teeb, tab sis tsuas yog hauv 2019 kom nkag mus rau cov saw hlau ntawm Tesla.

SDI:lub tuam txhab loj nrog kev lag luam me. 1999, lub peev xwm loj tshaj plaws 1.8Ah roj teeb nyob rau hauv kev lag luam ntau lawm, ib zaug tau tuav txoj haujlwm tseem ceeb hauv khw muag khoom, tab sis tau tsis txaus siab hauv lub hwj chim roj teeb.

2. square roj teeb kev txhim kho keeb kwm tshuaj xyuas

SDI:lub qub coj square roj teeb. 1999 tau tsim lub zog hluav taws xob square, xyoo 2009 tau dhau los ua BMW lub zog hluav taws xob xa khoom, xyoo 2016 vim yog Tuam Tshoj txoj cai-dawb daim ntawv teev npe, tig mus rau European layout, lithium roj teeb ua lag luam hauv lub tuam txhab cov nyiaj tau los ntawm tus nqi qis.

CATL:tus neeg tau txais txiaj ntsig loj tshaj plaws ntawm txoj cai pab nyiaj, nce ntawm trillion tus thawj coj. 2011 kev koom tes nrog BMW, ywj siab tawm ntawm kev tshwj xeeb hauv cov roj teeb fais fab. Xyoo 2014 vim yog kev txhawb nqa txoj cai xa khoom tau nce zuj zus, xyoo 2014 tig mus rau kev tshawb fawb thiab kev txhim kho cov khoom siv hluav taws xob siab ceev ternary. 2016 txoj cai dawb-daim ntawv teev npe nrog rau txoj cai them nyiaj yuav zoo rau cov khoom siv hluav taws xob siab, kev xa khoom xa tuaj.

BYD:Lub tuam txhab tau tsim nyob rau hauv 1995, lub thib plaub loj tshaj plaws xov tooj ntawm tes roj teeb xa mus thoob ntiaj teb nyob rau hauv 1997, nkag mus rau hauv automotive teb nyob rau hauv 2003, tsim F3e ntshiab hluav taws xob tsheb nyob rau hauv 2006, loj-tsim ntshiab hluav taws xob tsheb npav nyob rau hauv 2009, loj-tsim ntshiab hluav taws xob neeg nrog caij tsheb e6 xyoo 2010, tau txais txiaj ntsig los ntawm txoj cai pab nyiaj pab thiab tau los ua tus thawj coj hauv Suav teb. 2016 txoj cai nyiaj pab txhawb rau cov ntaub ntawv ternary, thiab BYD tsis muab cov roj teeb. Xyoo 2016, txoj cai pab nyiaj pab txhawb rau cov khoom siv ternary, thiab BYD tsis muab cov roj teeb, yog li qhov ntim ntawm cov khoom xa tuaj tau poob qis, thiab xyoo 2020, cov roj teeb thiab cov qauv DMI yuav raug tso tawm, thiab cov khoom lag luam yuav nce ntxiv.

3. mos pob roj teeb kev txhim kho keeb kwm tshuaj xyuas

AESC:huab tais thaum ntxov. tsim nyob rau hauv 2007, tsom rau lithium manganate technology txoj kev. 2010 nruab nrog AESC lub classic Nissan Leaf kev ua lag luam, tsim ib tug 9-xyoo zoo zaj dab neeg ntawm xoom roj teeb kev nyab xeeb xwm txheej. 2017 vim yog lithium manganate kom zoo dua tsis tau lawm, AESC tsis yog tus xa khoom tshwj xeeb ntawm Nplooj, tau txais los ntawm Vision hauv 2019.

LG:soft pob roj teeb teeb tswv. LG nkag mus hauv lub lag luam roj teeb fais fab hauv xyoo 2009 tom qab xyoo nag los nag hauv lub xov tooj ntawm tes. Thawj tus qauv rau Hyundai hybrid, 2010 txhawb Chevrolet Volt, 2017 Chevrolet Volt thiab Bolt muag tshaj 50, 000 units, 2018 thiab VW kev koom tes los tsim MEB, LG mos pob roj teeb mus txog nws heyday. Xyoo 2021 Hyundai thiab GM rov qab los vim muaj teeb meem kev nyab xeeb ntawm roj teeb, VW roj teeb hnub tshaj tawm cov kev xaiv ntawm cov qauv square, cov roj teeb muag muag tau raug kev poob qis.

Kev txiav txim siab txog txoj hauv kev yuav tsum tau soj ntsuam los ntawm qhov kev xav ntawm lub kaw lus / tag nrho lub tsheb, thiab qhov zoo thiab qhov tsis zoo ntawm tus kheej lub hlwb tsis tuaj yeem cuam tshuam rau lub cev.Lub zog siab ceev ntawm lub xov tooj ntawm tes tsis zoo ib yam li lub zog loj ntawm lub cev.Lub zog ntom ntawm cov muag pob yog siab, tab sis qhov hnyav ntawm cov roj teeb pob, ua kom muaj zog ntau dua li cov roj teeb pob ntawm lub cev ntom ntom ntawm lub system theem tsis tseem ceeb.Kev nyab xeeb ntawm tes zoo tsis sib npaug ntawm cov roj teeb zoo kev nyab xeeb.Txoj kev tshav kub dissipation, fastening raws li txoj cai, thiab high-voltage kev twb kev txuas ntawm cov hlwb nyob rau hauv lub roj teeb pob yuav cuam tshuam cov thermal runaway tiv thaiv nyhuv. Cov roj teeb pob mos muaj kev nyab xeeb zoo dua li cov roj teeb lub plhaub tawv ntawm lub xov tooj ntawm tes, tab sis qhov kev tiv thaiv theem tseem nyuaj heev thiab raug nqi, thiab tsis muaj txiaj ntsig zoo tag nrho.

Cov txheej txheem tsim cov roj teeb cylindrical yog qhov yooj yim tshaj plaws thiab ua haujlwm zoo tshaj plaws ntawm peb txoj kev ntim khoom. Cov txheej txheem tseem ceeb muaj xws li: dosing, txheej, laminating, tuag-txiav, winding, vuam, thiab lwm yam txheej txheem.

Cov teeb meem hauv cov txheej txheem tsim khoom ntawm 4680 pob ntseg pob ntseg yog:

• Tuag-txiav: Thaum lub pob ntseg pob ntseg coated nrog ncej, ib qho chaw khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Tom qab yob nias thiab slitting, qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Laser-txiav ncej lugs muaj cov teeb meem nram qab no: (i) ncej ncej nyhav jitters thaum txiav; (ii) qhov teeb meem uas cov seem tsis tuaj yeem tawm tau zoo tom qab txiav; thiab (iii) qhov ntev thiab tus naj npawb ntawm cov txiav tuag yog ntau dua li cov qauv ncej lugs.

• Kneading: Nyob rau hauv cov txheej txheem ntawm 4680 cylindrical roj teeb, tag nrho lub lug ntawm lub roj teeb core yuav tsum tau kneaded, thiab ces welded nrog tus ncej phaj tom qab seem ntawm lub roj teeb core yog tiaj. Muaj ntau yam teeb meem nyob rau hauv cov txheej txheem kneading: ① thaum kneading ceev ceev heev, lub ncej ncej yuav tig tawm ② thaum kneading ceev qeeb heev, cov efficiency ntau lawm yog tsawg ③ thaum lub kneading theem tsim ntau hlau chips, ua rau sab hauv luv luv ④ cov khoom siv nyob hauv cov khoom tawg thiab lwm yam teeb meem ⑤ kev sib txhuam ua kom muaj plua plav ntau ⑥ ua rau lub log folds.

• Vuam: 4680 roj teeb lug vuam vim qhov nce ntawm cov lugs ua rau vuam ntim nce. Cov txheej txheem nruab nrab ntawm cov tub ntxhais vuam feem ntau suav nrog cov vuam vuam (nrog rau kev vuam ua ntej), qhov chaw vuam ntawm tus ncej siv, ua ntej vuam ntawm cov tub ntxhais mus rau hauv lub plhaub, sib khi vuam ntawm lub plhaub sab saum toj, sib khi vuam ntawm cov kua dej txhaj tshuaj, thiab lwm yam welding ncig thiab lub sij hawm nce, tag nrho cov ncej lug thiab cov kua dej collector muaj qhov chaw dawb, muaj cov thermal buildup nyhuv, uas yuav cuam tshuam rau qhov sib xws, thiab cov txheej txheem vuam yog feem ntau thermal buildup.

• Tuag-txiav: Los ntawm lub tshuab slitting, milled ncej yob yog slit rau hauv qhov dav xav tau rau cov xov tooj ntawm tes raws li qhov xav tau tiag tiag. 4680 hlwb yog tsim los ntawm kev txiav cov lugs ncaj qha rau ntawm daim ntawv khoob, uas tso rau pem hauv ntej cov kev xav tau siab dua rau laser txiav raug, ceev thiab zoo rau cov khoom siv high-speed.

  
  

4680 tag nrho-pob ntseg roj teeb qhov kev daws teeb meem:

• Tuag txiav: Tuag txiav qhov zoo thiab tsis zoo tag nrho cov lugs rau hauv ntau lub parallelogram lug monoliths, uas tsis tsuas yog tuaj yeem tiv thaiv lub log los ntawm kev tig tawm thaum lub sij hawm kneading, tab sis kuj tsis tuaj yeem khawb cov phab ntsa sab hauv ntawm lub plhaub roj teeb thaum sib dhos nrog lub plhaub roj teeb; thiab tuaj yeem txo cov tiam ntawm cov hlau chips kom tsis txhob luv luv; Nyob rau tib lub sijhawm, tus qauv parallelogram no tuaj yeem txo qhov siab ntawm cov menyuam thaum kneading, yog li tsis txhob poob ntawm cov khoom nquag thiab txhim kho cov txiaj ntsig zoo.

• Kneading: Kneading txheej txheem sib txawv heev los ntawm cov chaw tsim khoom mus rau cov chaw tsim khoom, thiab patent CN11356039A qhia tias lub tes tsho kneading yog siv rau lub tes tsho sab nraud ntawm tag nrho cov ncej lug. Lub taub hau flattening mus txog lub tes tsho flattening thaum tig, thiab tom qab hu rau lub tes tsho flattening, nws yuav ncaj qha tig rau ntawm lub tes tsho flattening, thiab tsav lub elastic deformation ntawm lub tes tsho flattening mus rau hloov lub rotating quab yuam mus rau tag nrho lub nra kom tiav lub flattening; txij li thaum lub taub hau flattening tsis ncaj qha mus rau tag nrho lub lug, nws muaj peev xwm zoo tiv thaiv tag nrho lub lug los ntawm ib feem crushed, yog li tshem tawm cov kev cuam tshuam rau cov khoom zoo thiab zoo dua kev txhim kho tus nqi yield. Lub patent qhia tau hais tias: ultrasonic kneading ua ntej kho lub ntsej muag kawg ntawm cov tub ntxhais nrog ultrasonic tsis, thiab tom qab ntawd ua txhua yam kneading. Ultrasonic kneading muaj xws li ib tug ultrasonic kneading lub taub hau teem rau ntawm ob kawg ntawm cov tub ntxhais, thiab lub ultrasonic kneading lub taub hau muaj ib tug zawj, thiab ob tug kawg ntawm cov tub ntxhais yog muab tso rau hauv lub zawj ntawm lub sib thooj ultrasonic kneading lub taub hau. Cov tub ntxhais yog thauj mus rau hauv lub ultrasonic kneading unit, thiab lub ultrasonic kneading lub taub hau vibrates thiab kneads ob kawg ntawm cov tub ntxhais mus cuag ib tug flattening nyhuv thiab txhim kho lub compactness ntawm cov tub ntxhais xaus nyob rau hauv kev npaj rau tom ntej mechanical kneading. Mechanical kneading taub hau yog ceramic kneading taub hau. Lub tshuab kneading lub taub hau tig thiab nyem cov tub ntxhais kom flatten nws. CN213878154U patent xaiv los thov cov ntaub ntawv insulating ntawm ntug dawb paug tom qab txheej, thiab cov khoom siv insulating yog nyob rau tib theem raws li cov khoom siv, kom cov khoom siv ua tiav lub dav hlau tom qab winding, tsis tas yuav kneading.

• Vuam: Ncej lug vuam tam sim no feem ntau ua nrog lub laser. Kev hloov kho ntawm vuam ceev, vuam qhov tob, vuam dav thiab lwm yam zoo kom haum rau vuam ntawm cov khoom sib txawv thiab cov khoom, kom ua tiav vuam vuam, txhim khu kev qha zoo dua thiab zoo nkauj zoo nkauj.

Cov teeb meem saum toj no yuav tsum tau txo qis, peb ntseeg tias 4680 yuav ua kom cov kab sib faib nce ntxiv:

1) nce nyob rau hauv cov khoom zoo: daim ntawv teev dawb liberalization, trillion coj nkag. 21 Lub Xya hli ntuj 2019 "automotive fais fab roj teeb kev lag luam specification tej yam kev mob" officially tshem tawm, lub ntsiab lus hais tias Tuam Tshoj lub hwj chim roj teeb lag luam yog officially qhib rau txawv teb chaws roj teeb tuam txhab uas muag, LG, Panasonic, thiab lwm yam yuav muab tau zoo cylindrical roj teeb rau Suav lag luam. Hauv Ningde Lub Sijhawm thiab YIWI Li-zog tau nqis peev hauv 4680 cylindrical roj teeb kev tshawb fawb thiab kev tsim kho, thiab cov tuam txhab uas tau tshaj tawm lawv txoj kev cog lus rau 4680 roj teeb kev tshawb fawb thiab kev loj hlob suav nrog: Tesla, LG, Samsung, SDI, CATL, YIWI Li-zog , lwm.

2) Cov roj teeb qis dua, qis dua kev sib koom ua ke nyuaj: Tesla tam sim no siv 4416 21700 roj teeb, thiab yuav siv 960 4680 roj teeb yav tom ntej, yog li qhov pib ntawm kev sib koom ua ke tau txo qis.

3) Muaj peev xwm nce thiab txo tus nqi sib txawv: Lub peev xwm ntawm 4680 cylindrical roj teeb yog 5 npaug siab dua li ntawm 21700 roj teeb, ua ke nrog kev tsim khoom zoo thiab cov txiaj ntsig siab ntawm cov roj teeb cylindrical, ntau dua nickel cov ntsiab lus ntawm cov khoom siv cathode thiab ntau dua silicon cathodes, tus nqi Qhov sib txawv ntawm 4680 roj teeb thiab cov roj teeb square raug txo.

4) BMW yog thawj zaug hloov mus rau cylindrical roj teeb: Lub cylindrical hlwb yuav siv rau hauv lub roj teeb ntawm BMW Gen6. Raws li CATL tus borer, BMW tau tsis tu ncua xaiv lub square roj teeb technology txoj kev, thiab tam sim no nws yog coj mus rau lub hloov mus rau lub cylindrical roj teeb technology txoj kev, uas yuav muaj tseeb muaj feem cuam tshuam rau lwm lub tuam txhab tsheb.