Qhov kev txhim kho tseem ceeb tshaj plaws rau kev lag luam heterojunction hauv xyoo 2023 yog qhov kev tawg ua kom txo qis kev siv nyiaj, cim ib kauj ruam tseem ceeb hauv kev txo nqi thiab txhim kho kev sib tw ntawm lub sector. Kev lees paub zoo ntawm cov ntawv thov heterojunction module hauv cov chaw tsim hluav taws xob hauv tsev yog qhov qhia tau zoo, txawm hais tias cov tuam txhab tsim khoom cov txiaj ntsig tseem tsis tau ruaj khov tag nrho.
Thaum Lub Rau Hli 2024, thawj lub HJT+THL cell tau tsim tawm ntawm Tongwei's Global Innovation and R&D Center, nrog rau kev tshawb pom tshiab hauv kev sib txuas tooj liab gigawatt-scale thaum lub sijhawm sim tsav. Lub zog tso zis siab tshaj plaws rau Dongfang Sunrise's heterojunction solar module tau txog 767.38 Wp, nrog rau kev hloov pauv module ntawm 24.70%, teeb tsa cov ntaub ntawv tshiab.
Thaum tus nqi nyiaj nce siab, cov thev naus laus zis xws li cov tshuaj pleev tooj liab uas muaj nyiaj, 0BB thev naus laus zis, thiab kev luam ntawv stencil tau dhau los ua qhov tseem ceeb dua. Cov kev nce qib no tsis yog tsuas yog txo cov kev siv nyiaj hauv HJT roj teeb xwb tab sis kuj txhim kho kev hloov pauv zoo, txhim kho kev siv nyiaj ntawm HJT thev naus laus zis.
Qhov kev thov rau cov khoom sib txuas heterojunction tau nce ntxiv ntau heev, raws li pom los ntawm kev twv loj los ntawm cov chaw tsim hluav taws xob hauv tsev thiab cov xaj txawv teb chaws. Nrog rau kev xa khoom ntawm cov khoom sib txuas mus txog 8-10 GW hauv xyoo 2023, kev thov ua lag luam rau cov thev naus laus zis heterojunction tau ruaj khov.
Xyoo 2024, kev txhim kho kev ua haujlwm ntawm heterojunction tau dhau los ua qhov tseem ceeb dua li kev txo nqi, tshwj xeeb tshaj yog thaum TOPCon thev naus laus zis nce qib sai. Heterojunction thev naus laus zis yuav tsum ua kom zoo tshaj plaws kom ua tiav kwv yees li 30 watts ntawm kev coj noj coj ua.
Cov kev siv zog txo tus nqi tau hloov qhov kev tsom mus rau kev txo lossis tshem tawm kev siv nyiaj hauv cov tshuaj pleev nyiaj. Txawm tias nyob rau hauv ib puag ncig ntawm kev poob thoob plaws hauv kev lag luam, peb xav tias cov khoom heterojunction yuav ua rau pom kev ua lag luam tau txiaj ntsig, tswj hwm qhov zoo dua thiab tus nqi zoo dua li cov khoom TOPCon. Kev saib xyuas kev ua lag luam kuj tseem nyob rau ntawm cov qauv kev nthuav dav ntawm cov tuam txhab tsim khoom loj, uas yuav cuam tshuam rau qhov kev nqis peev ntawm lub sector.
Ob qhov kev hloov pauv tseem ceeb ntsig txog tus nqi tau tshwm sim tsis ntev los no: kev txo cov nyiaj hauv cov tshuaj nplaum thiab cov nqi ua haujlwm qis dua rau cov tshuaj nplaum nyiaj kub qis. Kev tshawb fawb tshiab, tshwj xeeb tshaj yog los ntawm lub tuam txhab tsim tshuaj nplaum txawv teb chaws KE, tau ua rau muaj kev vam meej ntawm 30% cov tshuaj nplaum nyiaj, txo cov nqi ntau heev. Tsis tas li ntawd, kev sib xyaw ua ke ntawm 0BB thev naus laus zis nrog 30% cov tshuaj nplaum nyiaj tau muab cov thev naus laus zis heterojunction kom zoo dua hauv kev siv nyiaj tsawg, ua rau nws yooj yim dua rau kev hloov pauv ntawm tus nqi nyiaj.
Txawm hais tias tus nqi nyiaj nce siab ua rau tus nqi ntawm cov thev naus laus zis heterojunction nce ntxiv, nws qhov kev sib tw tseem ceeb yog nws cov nyiaj siv tsawg, cais nws tus nqi los ntawm kev hloov pauv ntawm tus nqi nyiaj. Txawm li cas los xij, kev txhim kho lub zog tseem ceeb rau kev txhim kho thev naus laus zis. Tam sim no, thev naus laus zis heterojunction tsuas yog kwv yees li 10 watts ua ntej TOPCon rau cov khoom lag luam tseem ceeb hauv 210 version.
Hauv 2-3 lub hlis tom ntej no, kev txhim kho lub zog heterojunction yuav tshaj TOPCon, tsav los ntawm kev nce qib hauv PVD txheej, secondary flocking, thiab stencil printing technology. Cov kev tsim kho tshiab no yuav txhim kho kev ua haujlwm ntawm lub cell los ntawm 0.6-0.7%, txhais tau tias kwv yees li 15 watts ntawm kev txhim kho lub zog hauv cov modules. Kev luam ntawv stencil ib leeg yuav pab txhawb 0.3% kev txhim kho kev ua haujlwm los ntawm kev ua kom zoo dua cov nyiaj-clad tooj liab pastes.
Kev siv tshuab ua zaj duab xis pob tshab yog lwm yam tseem ceeb uas tsav tsheb. Thaum muaj ntau lub tuam txhab tsim khoom nkag mus rau hauv kev lag luam zaj duab xis pob tshab, nws tus nqi / kev ua tau zoo tau zoo dua, thiab cov nqi tau poob qis, tej zaum yuav ua rau nws yog tus qauv teeb tsa hauv ib xyoos. Ua ke nrog kev txhim kho roj teeb, qhov zoo ntawm lub zog ntawm heterojunction dua TOPCon xav tias yuav ntau dua 4% rau 210 version thiab kwv yees li 30 watts rau 20 version thaum kawg ntawm xyoo 2024.
Ib qho hluav taws xob uas muaj 2% txog 5% hauv ib lub voj voog kho dua tshiab ntawm cov thev naus laus zis zoo sib xws tuaj yeem ua rau ib qho thev naus laus zis los ntawm kev tshwm sim mus rau hauv cov khoom siv tseem ceeb. Qhov sib txawv 30-watt, raws li cov qauv keeb kwm ntawm kev rov ua dua ntawm cov thev naus laus zis, yog qhov tseem ceeb. Piv txwv li, TOPCon lub zog zoo dua li PERC tau nce ntxiv los ntawm 10-15 watts (2%) thaum kawg ntawm xyoo 2022 mus rau 30 watts (5%) thaum kawg ntawm xyoo 2023, ua rau TOPCon yog cov thev naus laus zis tseem ceeb.
Ib txoj hlua fais fab 4% yuav ua rau muaj kev nthuav dav heterojunction tshiab. Cov lus tshaj tawm tshiab ntawm TOPCon qhia txog kev qhib siab rau ob qho tib si cov thev naus laus zis uas muaj nyiaj thiab tooj liab, nrog rau kev txhim kho hauv kev ua haujlwm zoo, cov nqi tsis yog silicon, thiab kev nqis peev rau cov khoom siv. Yog tias kev ua haujlwm zoo thiab kev tswj tus nqi ntawm cov kab GW tshiab kawg ua tau raws li qhov xav tau, cov thev naus laus zis heterojunction yuav tau txais txiaj ntsig zoo dua ntawm tus nqi thiab qhov loj me.
Yuav tsum tau ua tib zoo saib xyuas kev lag luam ntawm cov thev naus laus zis luam ntawv stencil, kev txhim kho kev ua haujlwm zoo, thiab kev siv peev xwm ntawm cov chaw tsim khoom tseem ceeb xws li Orient Sunrise thiab Chain Rise Technology. Kev ua tau zoo ntawm cov tuam txhab loj hauv peb lub hlis twg yuav yog qhov qhia tseem ceeb ntawm kev vam meej ntawm kev lag luam thev naus laus zis heterojunction.
