Dɛn ne plastic a ɛyɛ hyew a wɔde hyɛ lithium-ion batere mu?
Pouch cell huammɔdi wɔ afuw mu? Bɛyɛ 60-70% Trace san kɔ sealing haw ahorow so. Ɛnyɛ cathode no, ɛnyɛ separator no, ɛnyɛ BMS no mpo-mfiri a ɛwɔ layers abien pɛ a ɛnkyekyeree yiye. Hot sealing nya ebia nkratafa abien wɔ battery adesua nhoma dodow no ara mu, nanso ɛde warranty ho nsɛm pii ba sen sɛnea nkurɔfo pɛ sɛ wogye tom.
Sini a ɛyɛ adwuma nyinaa .
Aluminum laminate film wɔ nnwuma abiɛsa a wɔaboaboa ano ayɛ no ade biako. Nylon a ɛwɔ akyi no gye oxygen na esiw ano. Mfinimfini aluminum layer no gyae nsu-eyi ne akwanside ankasa, efisɛ nsu a ɛyɛ hyew nketenkete mpo ne LipF6 yɛ ade ma HF mframa ba. CPP a ɛwɔ mu (cast polypropylene) no nwene bere a wɔresɔ ano no ma ayɛ nkitahodi ankasa.
Ɛte sɛ nea ɛyɛ tẽẽ. Wɔ nnwuma mu no, sɛ wonya layers abiɛsa no nyinaa ma ɛyɛ biako wɔ 2-3 second sealing cycle mu a, egye process control pii sen sɛnea oprehyɛn dodow no ara hwɛ kwan bere a edi kan a wɔde pouch line si hɔ no.
DNP, Showa Denko, ne Youlchon da so ara de laminate sini a ɛyɛ fɛ no fã kɛse no ara ma wɔ wiase nyinaa. Chinafoɔ a wɔyɛ nneɛma-Zijiang, Daoming, ne afoforo kakraa bi-atoto kwan a ɛda mid-tier applications so no mu, ɛwom sɛ-cycle-Life cells no da so ara taa yɛ spec Japanfo anaa Korea sini. Nneɛma a wɔpaw no nya nsɔano suban so nkɛntɛnso sen sɛnea datasheets no kyerɛ no.
sɛnea sealing yɛ adwuma ankasa .
Nnua abien a ɛyɛ hyew, soro ne ase, mia laminate film a wɔabobɔw no. Ɔhyew no yɛ digrii 185 kosi 225 wɔ bar no ani. Nanso nea nnwinnade ho nhoma ahorow no nsi so dua ni: CPP layer ɔhyew no ba awiei bɛyɛ digrii 10 sen bar hyew efisɛ ɔhyew fa nylon ne aluminium di kan. A 215℃setpoint kyerɛ bɛyɛ 205℃wɔ bonding interface ankasa.
Side seals run cooler-185℃yɛ typical efisɛ ɛyɛ film kɛkɛ-to-film bonding. Top seals hia 210-220℃efisɛ electrode tabs punch fa package no mu na tab sealant film no de thermal mass ka ho. Saa sealant (a mpɛn pii no wɔasesa PP) no ɛsɛ sɛ ɛkyekyere bere koro mu kɔ dade tab no ani ne CPP layer no so. Interface ahorow abiɛsa, sealing cycle biako.
Fusion adwinnade no fa polymer chain interdiffusion ho. CPP du viscous flow state, chains tu fa interface no so wɔ pressure ase, afei ɛkyekyere bere a biribiara yɛ nwini no. DSC curves ma aguadi laminate film dodow no ara kyerɛ melt window a ɛwɔ 160℃ne 215℃-endothermic peaks abien a ɛhyɛ ahye no agyirae. Adwumayɛ a ɛda saa peaks no ntam no ne botae no.
baabi a nneɛma a wɔyɛ no di aperepere .
Tab nsɔano efĩ .
ranks sɛ huammɔdi mode a ɛtaa ba. Electrolyte a wɔde hyɛ mu no si ansa na wɔahyɛ no agyirae a etwa to, na nkae biara a ɛwɔ nsɔano no ani no kum bond ahoɔden. Solvent vapor mpo betumi asesa CPP ani ahoɔden a ɛbɛma ɔhaw ahorow aba. Nneɛma bi wɔ hɔ a wɔde IPA popa mmeae a wɔde nsɔano gu; Operations a eye kyɛn so no di humidity so na fa dedicated clean zones di dwuma ma seal step a etwa to no. BILithium Battery Pack a Wɔde Ma .Na high field ahotoso taa wɔ katee protocols ha-Worth abisa ho asɛm wɔ bere a qualification.
Ɔhyew a ɛyɛ pɛ wɔ sealing bar no ho .
de pow pii ba sen sɛnea nnipa dodow no ara hu. Heating elements nkyekyɛ pɛpɛɛpɛ wɔ bar tenten so. Nsõ a ɛyɛ nwini ma fusion a enni mũ ba; Nsõ a ɛyɛ hyew no ma squeeze-ɛfiri baabi a CPP a ayɛ kusuu no nya pia fi nsɔano beae no, na ɛma mmeae a ɛyɛ mmerɛw a ɛyɛ mmerɛw a ɛpaapae wɔ onwini so no. Multi-zone temperature control boa, nanso nkyerɛwde pii da so ara yɛ biako-zone bars na wogye scrap rates a ɛkorɔn kɛkɛ.
Squeeze-afiri mu na micro-akɔbɔ mu .
Ɛba bere a ɔhyew anaa nhyɛso no kɔ soro dodo no. Molten polymer nni baabiara a ɛbɛkɔ gye sɛ fi seal zone no afã horow. Nsεmfua a εka no a aka no ma nhyɛsoɔ mu mpaapaemu ba bere a ɛreyɛ nwini-Ɛtɔ da bi a wɔtumi hu wɔ magnification ase, ɛtɔ da bi nso a ɛnte saa. Eyinom bɛyɛ akwan a ɛtwetwe nsu bere a bere kɔ so no. Profiled sealing heads with ridges and channels control material flow ye sen flat bars, ɛwom sɛ ɛho ka yɛ kɛse na ɛhwehwɛ sɛ wɔde setup tolerances a ɛyɛ den di dwuma de.
tab adhesive delamination .
Ɛkyerɛ asram pii wɔ cells hyɛn no akyi. Ɛsɛ sɛ sealant film a ɛwɔ electrode tabs so no bond metal-kɔ-adhesive, adhesive-kɔ-adhesive (baabi a layers hyia), ne adhesive-kɔ-cpp. Interface biara a ɛyera no kyerɛ sɛ electrolyte awiei koraa no wick wɔ tab no so. Nkwammoaa no twa nsu a ɛtwetwe nsu ho sɔhwɛ a edi kan no mu, afei wodi nkogu wɔ afuw no mu bere a awiei koraa no, creep a ɛyɛ brɛoo no bubu mu no. Accelerated onyin sɔhwɛ ahorow kyere eyinom bi, nanso ɛnyɛ ne nyinaa.
Dry vs thermal lamination films .
Sɛnea wɔyɛɛ laminate film no ankasa no nya nsɔano suban so nkɛntɛnso.
Thermal lamination bonds CPP to aluminum a wɔde MPP adhesive di dwuma wɔ ɔhyew ne nhyɛso ase. Adeyɛ no yɛ adwuma nanso ɔhyew a ɛda adi no betumi ahyɛ ade a wɔde nkata so no ho. BiLithium batere OEM .Dwumadi ahorow no adan akɔ dry lamination films-adhesive cures wɔ ɔhyew a ɛba fam, ɛkɔ so yɛ nea ɛyɛ mmerɛw, edi deep draws ho dwuma yiye.
Dry-process films no taa de windows a ɛtrɛw a wɔde hyɛ mu ma. Thermal-process films ɛtɔ da bi a kyerɛ edge-case cracking bere a wɔreyɛ operations a ɛrensi wɔ dry film. Ɛnkyerɛ sɛ thermal yɛ bɔne; Plenty of high-volume cells de di dwuma yiye. Nanso bere a ɔhaw ahorow a wɔde siw ano ba na biribi foforo biara nkyerɛkyerɛ mu no, ɛfata sɛ wɔyɛ sini a wɔyɛ no mu nhwehwɛmu.
Nnwinnade Nsɛm a Wɔahyehyɛ .
Upper sealing bar taa tu mmirika sɛ "light bar" a ɛyɛ mmerɛw a wɔde PTFE tape abɔ mu. Teflon siw a ɛbata ho bere a polymer piapia no, ɛma wogyae wɔ kyinhyia biara akyi, na ɛboa mpo ma ɔhyew kyekyɛ kakra. Teapɔn no hyɛ na ehia sɛ wɔde si ananmu daa-PTFE a asɛe anaasɛ asɛe no da adi sɛ soro agyiraehyɛde wɔ sini a wɔatoto mu so.
Mpɛn pii no, bar a ɛwɔ fam no wɔ soro a ɛwɔ mfinimfini a ɛwɔ mfinimfini kwan, a wɔde silicone rɔba ayɛ no. Silicone no ma wodi mmara so de di nsakrae a ɛyɛ den a efi tab mmeae ahorow ho dwuma. Sɛ saa mmara no nni hɔ a, nhyɛso kyekyɛ kɔ so pɛpɛɛpɛ na bond ahoɔden gu ahorow wɔ nsɔano no trɛw mu.
Asymmetric design-Smooth top, profiled ase-ma controlled compression mmom sen sɛ wɔde krampɔn tumi kɛkɛ bɛma. Setup ho hia wɔ ha; Milimita nkyem du mu kakraa bi wɔ bar alignment mu no sesa nea efi mu ba no yiye.
Nsɛmmisa a ɛda ɔkwan a wɔfa so yɛ adwuma no adi .
Wɔ supplier qualification mu no, saa nsemmisa yi taa yiyi adwumayɛ a anibere wom fi nea ɛbɛma warranty tiyɛ aba no ho:
BiaraNneɛma a wɔde yɛ lithium battery a wɔayɛ no sɛnea wɔpɛ .Nneɛma a wɔyɛ ankasa ho mfiridwuma ho nimdeɛ a wɔbɛyɛ no betumi abua eyinom pɔtee. Ebia wɔn a wontumi nyɛ adwuma no yɛ adwuma a wɔde kɔ amannɔne sen sɛnea wogye tom no.
Supply chain nokwasɛm .
Wɔ nkwammoaa a ɛkɔ mfiridwuma mu nnwinnade mu-forklifts, AGVs, aerial lifts, floor scrubbers-nneɛma a ɛyɛ papa no nya nkwa nna ho ka so nkɛntɛnso sen adetɔ bo. BILithium batere a wɔtɔn no kɛse .Nkontaabu a egyina $/kWh so nkutoo no hwere asɛm no sɛ seal huammɔdi ma ɔsom frɛ kɔ soro wɔ afe abiɛsa mu a.
Japan ne Korea sini ahorow a wɔde laminate ayɛ no bo yɛ den. Wɔn nso di nkogu kakraa bi. China sini ahorow yɛ adwuma yiye ma ɛyɛ tiaa-cycle applications anaa baabi a ɛka nhyɛso di so. Match material spec to actual use case mmom sen sɛ wobɛ default to cheapest-available.
Wɔn a wɔyɛ lithium batere .Na in-ofie sealing ho nimdeɛ taa si sourcing gyinaesi ahorow a eye wɔ ha. Wɔn a wɔtɔ turnkey lines na wɔde sini biara a mfiri tɔnfo no hyɛɛ ho nyansa no di dwuma... Nea efi mu ba no gu ahorow.
Nsɔano nyɛ den wɔ adwene mu-ɔhyew, nhyɛso, onwini. Sɛ wonya no pɛpɛɛpɛ wɔ production volumes, a tab penetrations, electrolyte contamination asiane, ne thermal gradients, gye process nteɛso pii sen sɛnea simplicity kyerɛ. Field ahotoso di akyi yiye ne sɛnea adwene kɛse bi ayɛfo tua saa anammɔn yi ho ka.
