Wanem samting em i 'plastic hot sealing' bilong ol 'lithium-ion' bateri?
Ol sel bilong paus i no wok gut long fil? Samting olsem 60-70% i go bek long ol hevi bilong pasim. Nogat 'cathode', nogat 'separator', nogat tu BMS-tupela leit bilong film tasol we i no bin pas gut. Hot sealing i save kisim ating tupela pes long planti ol teksbuk bilong bateri, tasol em i save kamapim planti waranti kleim winim ol manmeri i laik tok orait long en.
Piksa we i mekim olgeta wok
Aluminium laminate film i gat tripela wok we i stap insait long wanpela samting. Nailon ausait i save kisim ol mak na pasim oksijen. Namel aluminium leia i save stopim wara-dispela em i samting tru we i save pasim wara, long wanem, maski liklik wara steam i save wok wantaim LiPF6 na kamapim HF ges. CPP insait (cast polypropylene) i save melt taim ol i pasim na kamapim gutpela bon.
Em i krai stret. Long praktis, long kisim olgeta tripela leia long wok bung wantaim insait long 2-3 seken 'sealing cycle' i kisim moa proses kontrol winim planti operesen i tingim taim ol i kirapim wanpela 'pouch line'.
DNP, Showa Denko, na Youlchon i save salim yet planti bilong ol gutpela 'laminate film' long wol. Ol Saina manifakta-Zijiang, Daoming, na sampela arapela-i pasim spes long ol mid-tier aplikesen, maski ol hai-saiklon-laip sel i save laikim yet long makim ol piksa bilong Japan o Korea. Ol samting yu makim i save senisim pasin bilong pasim samting moa long ol datasit i soim.
Olsem Wanem Sealing i Wok Tru
Tupela 'bar' we i hat, antap na daunbilo, i save presim 'laminate film' we ol i bin foldim. Tempereja i save ron long 185 digri i go inap 225 digri long pes bilong 'bar'. Tasol dispela em samting ol ikwipmen manuel i no tok strong long en: CPP leia tempereja i save pinis 10 digri daunbilo long bar tempereja bikos hat i save go insait long nailon na aluminium pastaim. Wanpela 215 digri setpoint i min olsem 205 digri long 'bonding interface' tru.
Ol sait sil i save ran kol moa-185 digri em i samting we i save kamap bikos em i 'film-to-film bonding tasol. Ol top sil i nidim 210-220 digri bikos ol 'electrode tab' i save sutim paket na 'tab sealant film' i save putim 'thermal mass'. Dispela 'sealant' (planti taim ol i save senisim PP) i mas pas wantaim long metal tab pes na CPP leia. Tripela kain 'interface', wanpela 'sealing cycle'.
Fusion mekanisme i gat 'polymer chain interdiffusion'. CPP i kamap long wanpela 'viscous flow state', ol sen i save raun long 'interface' aninit long presa, na bihain ol i save pas taim olgeta samting i kol. Ol DSC kurv bilong planti ol komesel laminet film i soim melt windo namel long 160 digri na 215 digri -tupela endotermik pik i makim ol baundri. Wok namel long ol dispela maunten em i mak.
We ol Prodaksen Lain i Hevi
Kontaminesen bilong tab sil
i stap olsem nambawan 'failure mode'. Ol i save pulimapim 'electrolyte' pastaim long ol i pasim pinis, na olgeta samting i stap yet long 'seal surface' i save kilim strong bilong 'bond'. Maski 'solvent vapor' inap long senisim CPP pes eneji inap long kamapim hevi. Sampela fasiliti i save klinim ol hap we ol i pasim wantaim IPA; gutpela wok i bosim 'humidity' na yusim ol klinpela hap bilong laspela 'seal step'. WANPELAsaplaia bilong litiam bateri pekwantaim bikpela 'field reliability' i save gat ol strongpela 'protocol' long hia-gutpela long askim long en long taim bilong kwalifikesen.
Yunifom bilong tempereja long 'sealing bar'
i save kamapim planti sakim moa long planti manmeri i save tingim. Ol samting bilong hatim haus i no save go aut gut tru long olgeta hap bilong 'bar'. Ol kolpela hap i save givim inkomplit fusen; ol hot spot i save kamapim 'squeeze-out we 'molten CPP' i save go aut long 'seal zone', na i save lusim ol liklik hap we i no strong na i save bruk taim em i kol. Multi-zon tempereja kontrol i helpim, tasol planti lain i save ron yet long ol singel-zon bar na ol i save kisim bikpela skrap reit.
Skwisim-aut na 'micro-cracking
i save kamap taim tempereja o presa i go antap tumas. Ol 'molten polymer' i no gat ples bilong go long en, tasol i go ausait long sait bilong 'seal zone'. Dispela liklik 'residual layer' i save kamapim ol 'stress cracks' taim em i kol-sampela taim yu ken lukim taim yu mekim 'magnification', sampela taim nogat. Ol dispela i kamap olsem ol 'leak path' bihain long sampela taim. Ol 'profiled sealing heads' wantaim ol 'ridges' na 'channels' i save bosim ron bilong ol samting gut moa long ol 'flat bar', tasol ol i gat bikpela pe na i nidim ol strongpela 'setup tolerances'.
Tab adhesive delamination
i kamap planti mun bihain long ol i salim ol sel. Sealant film long ol 'electrode tab' i mas pasim ain-long-adhesive, adhesive-long-adhesive (we ol leia i bung), na adhesive-long-CPP. Sapos yu no gat wanpela 'interface' dispela i min olsem 'electrolyte' bai i go insait long 'tab'. Ol sel i winim namba wan tes bilong lik, na bihain ol i feil long fil taim 'slow creep' i bruk. Ol 'accelerated aging test' i save kisim sampela bilong dispela, tasol i no olgeta.
Drai vs Themal Lamination Films
Hau ol i wokim 'laminate film' yet i save senisim pasin bilong pasim.
'Thermal lamination' i save pasim CPP long aluminium yusim MPP glu aninit long hat na presa. Dispela wok i wok gut tasol taim yu kisim hat dispela inap long bagarapim 'adhesive layer'. Sampelalitiam bateri OEMol program i senis i go long ol 'dry lamination films-'adhesive cures' long liklik tempereja, i save stap isi moa, na i save holim gut ol 'deep draw'.
Ol drai-proses film i save givim bikpela windo bilong pasim. Sampela taim ol 'thermal-process films i save soim 'edge-case cracking long taim bilong wokim ol wok we i no inap kamap wantaim 'dry film'. Dispela i no min olsem 'thermal' i no gutpela; planti ol bikpela - volium sel i save yusim gut. Tasol taim ol hevi bilong pasim samting i kamap na i no gat narapela samting i eksplenim ol, em i gutpela long mekim wok painimaut long wok bilong wokim piksa.
Ol toksave bilong ol ikwipmen
Antap 'sealing bar' i save ron olsem wanpela gutpela "lait bar" we ol i pasim long PTFE tep. Teflon i save stopim pasin bilong pas taim polima i skwesim aut, i save givim rilis bihain long olgeta saikel, na i save helpim long daunim hat distribusen liklik. Tep i save bagarap na i mas senisim oltaim-PTFE i gat doti o bagarap i kamap olsem ol mak long pes bilong film we i pas.
Lower bar i save gat wanpela 'profiled surface' wantaim wanpela 'center channel', we i gat 'silicone rubber' long en. Silikon i save givim 'compliance' long lukautim ol senis long 'thickness' bilong ol 'tab' eria. Sapos ol i no bihainim dispela lo, presa distribusen i no wankain na strong bilong bond i senis long bikpela bilong sil.
Asymmetric design-smut top, profiled bottom-i givim kontrol long kompresen na i no strong bilong pasim tasol. Setup em i bikpela samting long hia; sampela tenpela hap bilong wanpela milimita long 'bar alignment' i save senisim ol risal gut tru.
Ol askim we i soim olsem wok i kamap bikpela
Long taim bilong saplaia kwalifikesen, ol dispela askim i save separetim ol bikpela wok na ol wok we bai kamapim hevi long waranti:
Wanpelakastom litiam bateri saplaiamekim wok enjiniaring tru inap long bekim ol dispela askim stret. Ol lain husat i no inap ating ol i wok long autsosing moa long wanem ol i tok orait long en.
Saplai Sen Rialiti
Long ol sel we i go insait long ol indastrial ikwipmen-ol 'forklift', AGV, 'aerial lift', 'floor scrubber'-kwaliti bilong ol samting i save afektim laipsaiklon kos moa long prais bilong baim. WANPELA'lithium battery wholesale'kalkulesen we i kamap long $/kWh tasol i no inap long mekim wok sapos ol 'seal' i no wok gut na i mekim ol sevis kol i go antap long yia tri.
Ol 'laminate film' bilong Japan na Korea i gat bikpela pe. Ol i no save feil tumas tu. Ol piksa bilong Saina i wok gut long ol sotpela -saiklon aplikesen o we presa bilong pe i stap antap. Mekim ol 'material spec' wantaim 'real use case' na noken putim long 'cheapest-'available.
Ol kampani bilong wokim ol litiam bateriwantaim save bilong silim insait long haus i save mekim gutpela disisen long painim ol samting long hia. Ol lain husat i baim ol 'turnkey line' na ranim wanem kain piksa we man bilong salim ol ikwipmen i tok... ol risal i no wankain.
Siling em i no hatwok long tingting-hat, presa, kol. Long kisim stret long ol volium bilong prodaksen, wantaim ol 'tab penetrations', ol hevi bilong 'electrolyte contamination', na ol 'thermal gradients', i nidim moa proses disiplin winim ol samting we i no hat tumas. Field reliability i save bihainim gut tru hamas luksave wanpela manifakta i save givim long dispela step.
