Dɛn ne prismatic nkwammoaa?- Polinovel .

Prismatic nkwammoaa yɛ rectangular lithium-ion battery cells a wɔde aluminum anaa dadeɛ dan akata so. Wɔn flat, box-te sɛ nsusuwii ma kwan ma wɔde stacking a etu mpɔn wɔ battery modules mu, na ɛma ɛyɛ soronko wɔ cylindrical cells a wɔde rolled electrodes di dwuma wɔ round casings mu no ho.

Wɔ prismatic nkwammoaa mu no, wɔde electrode nkratafa a anode, cathode, ne separator wom no ahyɛ ntoatoaso mu anaasɛ wɔabobɔw na wɔayɛ no petee. Saa nhyehyeɛ yi ma wɔn a wɔyɛ no tumi yɛ nkwammoaa mmiako mmiako a ɛkora ahoɔden pii wɔ adeɛ biara mu sɛ wɔde toto cylindrical alternatives ho a. Prismatic nkwammoaa biako betumi akura ahoɔden a ɛne no sɛ a ɛyɛ nkwammoaa a ɛyɛ kurukuruwa 20 kosi 100, a ɛtew anyinam ahoɔden nkitahodi dodow a ehia wɔ batere mu no so kɛse.

Nkwammoaa a wɔfrɛ no prismatic no di akwan titiriw abien akyi. Prismatic nkwammoaa a wɔaboaboa ano no wɔ electrode layers a wɔde si wɔn ho wɔn ho so tẽẽ, bere a prismatic nkwammoaa a wɔabobɔw no de electrodes akuru a ɛwɔ spiral nsusuwii a ɛyɛ tratraa mu di dwuma ansa na wɔde ahyɛ ahinanan no mu. Nsusuwii biara de aguadi pɔtee bi ma-afiri adwinnan a ɛyɛ adwuma yiye ne adwumayɛ su ahorow ntam.

Aluminium anaa dade akyi no yɛ adwuma pii a ɛboro ahobammɔ a ɛyɛ mmerɛw so. Ɛma structure rigidity, hwɛ mu nhyɛso bere a charge-discharge cycles, na ɛboa wɔ thermal dissipation. Casing thickness no taa yɛ bɛyɛ 1.1mm ma aluminum shells, a ɛkari pɛ wɔ ahobammɔ ne mu duru ho nsusuwii mu. Saa afiri a ɛyɛ den yi ma prismatic nkwammoaa no da nsow wɔ kotoku mu nkwammoaa a wɔde aluminum a ɛyɛ mmerɛw a wɔde ayɛ laminate a wɔde kyekyere nneɛma ho no mu.

Electrode nhyiam hwehwɛ sɛ wɔyɛ no pɛpɛɛpɛ. Wɔ nhyehyɛe ahorow a wɔaboaboa ano mu no, anode nkratafa nyinaa de anyinam ahoɔden di nkitaho, sɛnea cathode ntama nyinaa yɛ no, ansa na wɔde ahyɛ casing no mu. Rolled designs mframa electrode layers wɔ jig so, afei flatten no ma etumi nya rectangular profile. Nneɛma a wɔpaw wɔ saa akwan yi ntam no ka ahoɔden a ɛyɛ den, ɔhyew a ɛyɛ adwuma, ne nneɛma a wɔyɛ no.

Prismatic Cells

Rectangular geometry no de packing efficiency nkɔso kɛse ma. Sɛ wɔhyehyɛ no wɔ batere module ahorow mu a, prismatic nkwammoaa no yi mframa mu nsonsonoe a ɛwɔ cylindrical cell configurations mu no fi hɔ. Eyi kyerɛ ase sɛ volumetric ahoɔden density a ɛkorɔn-a mpɛn pii no ɛyɛ 600-700 wh/L sɛ wɔde toto 500-600 wh/L ho ma nkwammoaa a ɛyɛ kurukuruwa a.

Wɔ anyinam ahoɔden kar a wɔde di dwuma ho no, saa ahunmu a ɛyɛ papa yi da adi sɛ ɛsom bo titiriw. NoLithium kar batere .Packs a ɛwɔ nnɛyi EVs mu no nya mfaso fi prismatic cell ahorow tumi a ɛma ahoɔden a wɔkora so kɛse wɔ kar nhyehyɛe a wɔahyɛ no den mu no mu. Wɔn a wɔyɛ no betumi ayɛ batere a wɔde akata so a ɛkame ayɛ sɛ wɔde cubic centimeter biara di dwuma, na ɛma kar no kwan tẽẽ a ɛmma pack no nsusuwii nkɔ soro.

Nkɔso a aba nnansa yi no ma saa ahye yi kɔ akyiri. GM ne LG Energy Solution Lithium Manganese-Prismatic nkwammoaa a ɛwɔ hɔ, a wɔayɛ ho nhyehyɛe sɛ wɔbɛyɛ no aguadi mu wɔ 2028 mu no kyerɛ ahoɔden a ɛkɔ soro 33% sɛ wɔde toto lithium iron phosphate nkwammoaa ho wɔ ɛka a wɔde toto ho a. Saa sika a wɔde di dwuma wɔ anyinam ahoɔden mu a ɛhwehwɛ sɛ wɔde anyinam ahoɔden di dwuma a egye bɛboro akwansin 400 bere a ɛtew batere a wɔde gu mu no so no de wɔn ani si so.

Battery pack assembly complexity so tew kɛse wɔ prismatic nkwammoaa mu. Ebia pack a ɛhwehwɛ nkwammoaa a ɛyɛ kurukuruwa 100 no behia prismatic nkwammoaa 5-10 pɛ na ama wɔanya tumi a ɛne no sɛ. Nkwammoaa kakraa bi na ɛkyerɛ sɛ weld kakraa bi na ɛwɔ hɔ, mmeae a ebetumi adi huammɔ no sua, na ɛtew bere a wɔde yɛ nneɛma no so.

Ɛsono anyinam ahoɔden nkitahodi nhyehyɛe no titiriw. Prismatic cells no wɔ terminal tabs wɔ soro ani anaa awiei, na ɛma wotumi yɛ parallel anaa series nkitahodi tẽẽ. Nnɛyi akwan a wɔfa so yɛ nneɛma, te sɛ Ennovi de no-anamɔn lamination nhyehyɛe no, fa-voltage circuits a ɛba fam, a ɛkorɔn-voltage aluminum current collectors, ne terminal busbars wɔ adwuma biako mu. Saa ade foforo yi yi nhyiam anammɔn ahorow pii fi hɔ bere a ɛma ahotoso tu mpɔn no.

Nanso, saa adwene a wɔde si biribi so yi ma ɛyɛ mmerɛw. Bere a cylindrical cell packs betumi akɔ so ayɛ adwuma a tumi a ɛso atew sɛ nkwammoaa ankorankoro di nkogu a, prismatic nkwammoaa biako a entumi nyɛ adwuma yiye no betumi anya module no nyinaa so nkɛntɛnso. Ɛsɛ sɛ batere sohwɛ nhyehyɛe ahorow no bɔ ho ban denneennen ma nkwammoaa biara na ama asiane yi so atew.

Ɔhyew a wɔsɛe no no de mfaso ne nsɛnnennen a ɛwɔ hɔ ma nkwammoaa a wɔfrɛ wɔn prismatic no nyinaa ba. Nneɛma akɛse a ɛyɛ petee no ma ɛyɛ mmerɛw sɛ ɛne onwini mprɛte anaa ɔhyew sohwɛ nhyehyɛe bedi nkitaho tẽẽ. Nneɛma a wɔyɛ no betumi de nneɛma a ɛma onwini abata nkwammoaa anim ho tẽẽ, na ama ɔhyew a wɔde yiyi mu no ayɛ yiye bere a wɔde ahoɔden a ɛyɛ ntɛmntɛm anaa-power discharge no ahyɛ mu no.

Nanso compact stacking a ɛma ahoɔden density tu mpɔn no nso ma ɔhyew no yɛ kɛse. Prismatic nkwammoaa pii a wɔde afrafra no betumi anya ɔhyew a ɛkɔ soro sɛ onwini nhyehyɛe no nyɛ adwuma yiye a. mmeae a ɛhɔ yɛ hyew no yɛ baabi a ɔhyew boaboa ano ntɛmntɛm sen sɛ ɛbɛpaapae. Ɔhyew sohwɛ a ɛkɔ anim no bɛyɛ nea ɛho hia, titiriw wɔ-adwumayɛ nhyehyɛe a ɛkorɔn mu.

Nkwammoaa a ɛyɛ kurukuruwa no fi awosu mu nya mfaso fi nsonsonoe a ɛda units ntam no mu, na ɛma mframa kɔ mu ma ɛyɛ nwini a ɛnyɛ adwuma. Prismatic nhyehyeɛ hwehwɛ sɛ wɔyɛ onwini ano aduru-Liquid cooling loops, phase-sesa nneɛma, anaa graphene-ahuruhuruw a ɛyɛ hyew. Mprempren wɔn a wɔyɛ nneɛma no bi ka phase-bere sesa nneɛma wɔ prismatic packages mu, twetwe ɔhyew wɔ bere a charge cycle ahorow no yɛ ntɛmntɛm no mu na wogyae no nkakrankakra wɔ ɛno akyi. Nhwɛsode a edi kan no kura adwumayɛ a ɛyɛ den mu wɔ 45℃ambient ɔhyew a ennu 5℃mu hyew kɔ soro wɔ 0.5C discharge rates.

Production automation ma prismatic nkwammoaa di akyi wɔ cylindrical cell a wɔyɛ no akyi. Cylindrical formats te sɛ 18650 ne 21700 nya mfasoɔ firi mfeɛ du du a wɔde ayɛ adwuma a wɔahyɛ da ayɛ no mu, a ɛma ɛyɛ yie-volume output a ɛwɔ su a ɛkɔ so daa. Prismatic nkwammoaa nni amansan nyinaa format gyinapɛn-a VDA PHEV2 nkyerɛkyerɛmu a ɛtaa ba wɔ German kar mu no nka ho.

Saa standardization a enni hɔ yi kyerɛ sɛ prismatic cell dodow no ara yɛ amanne-a wɔayɛ ama application pɔtee bi. Wɔn a wɔyɛ no yɛ nsusuwii soronko, tumi, ne terminal nhyehyɛe ahorow a ɛbɛma wɔadi adetɔfo ahiade ho dwuma. Bere a saa nsakrae yi ma wotumi ka bom yiye no, ɛma ɛka kɔ soro na ɛma dodow a ɛba fam koraa no kɔ soro. Ɛsɛ sɛ wɔwie sɔhwɛ ne adansedie no mmiako mmiako ma adwini biara.

Pɛpɛɛpɛ a ɛho hia ma electrode stacking anaasɛ rolling no de manufacturing complexity ka ho. Ɛsɛ sɛ layers no hyia yiye na amma circuits ntiantiaa no ansiw. Sɛ wɔde nneɛma a ɛyɛ fɛ di dwuma kɛse bere a wɔde toto nneɛma a ɛho akokwaw, a ɛyɛ adwuma kɛse wɔ nkwammoaa a ɛyɛ kurukuruwa ho no ho a. Saa nneɛma yi boa ma ɛboro-unit ka so, ɛwom sɛ sikasɛm a ɛwɔ nsenia mu no ma nsonsonoe no yɛ ketewaa nkakrankakra bere a nneɛma a wɔyɛ no dodow kɔ soro no.

Prismatic nkwammoaa hwehwɛ akyi nhyɛso na ama adwuma a eye sen biara akɔ so wɔ wɔn nkwa nna mu. Bere a nkwammoaa no reyɛ adwuma no, lithium ions tu kɔ graphite anode no mu, na ɛma ɛyɛ kɛse sɛ ɛbɛtrɛw. Silicon-EMANDES ENHANCED Amplify yi a ɛho ahon no yɛ kɛse. Sɛ nhyɛso a ɛkɔ so tra hɔ a ɛteɛteɛ electrode plane ahorow no mu a, ntoatoaso no betumi ayɛ delaminate, atew adwumayɛbea a ɛyɛ nnam no so na asɛe tumi.

Battery module ahorow a wɔtaa de di dwuma no de tumi a edi kan a ɛwɔ 3kn so no di dwuma ma end mprɛte ma PHEV2 format cells a ɛwɔ hɔ no. Saa nhyɛsoɔ yi ma electrode layers kɔ so di nkitaho wɔ charge no nyinaa mu-gyae cycling, na ɛsi mfiri ɔbrɛ ne fracture ano. Ɛsɛ sɛ module nhyehyɛɛ no bu akontaa ma mfitiaseɛ nhyɛsoɔ ahwehwɛdeɛ ne nhyɛsoɔ a ɛkɔ soro wɔ nkwa awieeɛ nyinaa.

Prismatic nkwammoaa a ɛyɛ ahinanan no ntwea so a ɛyɛ nsensanee no gyina hɔ ma structure weaks. Saa mmeae yi de mfiri adwennwen fi ahokeka ne nkɛntɛnso ahorow mu si hɔ. Ɛsɛ sɛ ahobammɔ a wɔde abɔ ho ban no bɔ nkwammoaa ho ban yiye, titiriw wɔ kar a wɔde di dwuma mu baabi a ɔhyew a ɛtra so ne akwan tebea a ɛtra hɔ kyɛ no da adi sɛ ɛho hia. Casing a ɛyɛ den no ma ahobammɔ bi, nanso mpɛn pii no ɛnyɛ den pii te sɛ nkwammoaa a ɛyɛ kurukuruwa no mfiri ahoɔden.

Prismatic Cells

Prismatic nkwammoaa no fa lithium-ion chemisries ahorow, a emu biara fata ma nsɛm a wɔde di dwuma ahorow. Lithium iron phosphate chemistry no ne prismatic format no bɔ mu yiye titiriw. LFP batere de nneɛma a ɛdɔɔso, ɛka-nneɛma a etu mpɔn-Ka cobalt a ne bo yɛ den ne nikel-bere a ɛde ɔhyew a ɛyɛ den ne kyinhyia nkwa tenten a ɛboro kyinhyia 3,000 ma no di dwuma.

Nickel manganese cobalt ne nickel cobalt aluminium chemisries nso pue wɔ prismatic configurations mu, a ɛde n’ani si applications a ɛhwehwɛ ahoɔden a ɛkorɔn so. Format flexibility no ma wɔn a wɔyɛ no tumi yɛ chemistry a wɔpaw no yiye ma adwumayɛ ho ahwehwɛde pɔtee bi a wɔmfa battery architecture no nyinaa nyɛ.

Electric kar ahorow gyina hɔ ma nea wɔde di dwuma titiriw, titiriw wɔ Asia gua ahorow a wɔn a wɔyɛ no de LFP prismatic nkwammoaa di kan no mu. Saa battery ahorow yi tumi gyinapɛn-range Tesla mfonini ahorow a wɔyɛ wɔ China, wɔ kar afoforo pii mu. Format no ahunmu a ɛyɛ adwuma yiye ne ɛka a wɔbɔ wɔ ɛka ho no ne EV sikasɛm hyia. Energy storage systems for grid-scale applications ne renewable energy integration saa ara na ɛma prismatic cells no nya prismatic cells ma wɔn kyɛ, cycle nkwa tenten, ne ogya ho asiane a ɛba fam sɛ wɔde toto cylindrical alternatives ho a.

Ɛlektrɔnik mfiri a wɔde di dwuma no de prismatic nkwammoaa nketewa di dwuma wɔ mfiri te sɛ smartphone, tablet, ne laptop mu wɔ baabi a ɛda adi sɛ ɛho hia. Aduruyɛ mfiri, telefon so nkitahodi nhyehyɛe a wɔde siesie nneɛma, ne anyinam ahoɔden nnwinnade a wɔde nhama ayɛ no gyina hɔ ma gua foforo a ɛde mfaso a ɛwɔ format no so di dwuma.

Sɛ woresusuw battery cell ahorow ho a, metric ahorow pii a wotumi kyerɛ dodow no kyerɛkyerɛ adwumayɛ su ahorow mu. Prismatic nkwammoaa taa de tumi a efi 20AH kosi bɛboro 300ah ma wɔ nkwammoaa biara mu. Cylindrical cells max out around 5-6ah ma common formats te sɛ 21700, ɛwom sɛ Tesla 4680 cell no du bɛyɛ 25Ah.

Power density de aguadi bi kyerɛ-afiri. Nkwammoaa a ɛyɛ kurukuruwa no nya ahoɔden bɛyɛ 1,500 W/kg, na wonya nkitahodi pii so mfaso wɔ amp biara mu-dɔnhwerew. Prismatic nkwammoaa taa du 1,000-1,200 W/kg, na ɛde ahoɔden a wɔkora so di kan sen ahoɔden a wɔde ma ntɛm ara. Eyi ma nkwammoaa a ɛyɛ kurukuruwa no yɛ papa ma nneɛma a ɛyɛ adwuma yiye a ɛhwehwɛ sɛ wɔma ahoɔden ntɛmntɛm, bere a prismatic nkwammoaa di mu wɔ application ahorow a ɛhwehwɛ ahoɔden a ɛtra hɔ daa mu no.

Gravimetric ahoɔden density pɛ cylindrical nkwammoaa wɔ bɛyɛ 260 wh/kg versus 200 wh/kg ma prismatic configurations. Nsonsonoeɛ no firi casing material requirements-Prismatic cells hia afasuo a ɛyɛ den na ama wɔatumi atua mfiridwuma mu ahoɔden a ɛso ateɛ no so ka sɛ wɔde toto cylindrical geometry ho a. Nanso, volumetric ahoɔden density dan saa mfaso yi, a prismatic nkwammoaa de ahunmu di dwuma yiye.

Cycle life spans no gu ahorow a egyina chemistry ne adwumayɛ tebea so sen sɛ ɛbɛyɛ cell format nkutoo. Ahorow abien no nyinaa betumi aboro kyinhyia 2,000 a wɔde di dwuma yiye. Prismatic LFP nkwammoaa no taa boro kyinhyia 5,000 wɔ nneɛma a eye sen biara mu. Nsonsonoe titiriw no gyina sɛnea nneɛma a efi abɔnten-temperature management, charge rates, depth of discharge-ɛka nkwa tenten ho.

Nneɛma a wɔyɛ ho sikasɛm nya nkwammoaa mu nhyehyɛe a wɔpaw so nkɛntɛnso kɛse. Cylindrical cells nya mfasoɔ firi production infrastructure a ɛho akokwaw ne standardization mu, na ɛde ba a ɛba fam sen biara-kilowatt-dɔnhwerew ho ka bere a wɔyɛ no wɔ nsenia so no. Automated winding processes ne mfe du du pii a wɔde ayɛ no yiye no ma wotumi yɛ nneɛma ntɛmntɛm na ɛkɔ so daa.

Prismatic cell production costs da so ara yɛ kɛse esiane customization ahwehwɛde ne automation a ɛba fam nti. Nanso, nhyehyɛe-level sikasɛm betumi agye prismatic nkwammoaa atom. Nkwammoaa kakraa bi na ɛwɔ pack biara mu no brɛ adwumayɛ ase, ɛma batere sohwɛ nhyehyɛe yɛ mmerɛw, na ɛtew weld dodow so. Wɔ-format applications akɛse te sɛ anyinam ahoɔden lɔre anaasɛ grid storage ho no, saa sika a wɔkora so yi betumi atua cell ka a ɛkɔ soro no ano.

Nneɛma a wɔde yɛ nneɛma a wɔmfa nyɛ hwee ho ka no ka nkyerɛwde abien no nyinaa pɛpɛɛpɛ, ɛwom sɛ nnuru a wɔpaw no ho hia sen nkwammoaa nsusuwii de. Nsakrae a ɛkɔ LFP nnuruyɛ mu wɔ prismatic nkwammoaa mu no de manganese ne iron a ɛdɔɔso di dwuma sen cobalt ne nickel a ɛho yɛ na, a ebetumi atew nneɛma a wɔbɔ ho ka so 20-40% sɛ wɔde toto nnuru a nickel pii wom ho a.

Sɔhwɛ ne adansedi ho ka ka prismatic cell ka ho bere a designs nni standardization no. Ɔkwan soronko biara a wɔfa so yɛ no hwehwɛ sɛ wɔde validation a ɛsono emu biara ma, bere a ɛkɔ soro-kɔ{2}}gua ne nkɔso ho ka so. Nnwumayɛkuo mmɔdenbɔ a ɛkɔ gyinapɛn kɛseɛ mu no bɛtumi atew saa nsonsonoeɛ yi so, ɛwom sɛ gua so nkɔsoɔ mprempren pene application-pɔtee optimization so wɔ amansan nhyehyɛeɛ so.

Battery ahobanbɔ ka huammɔdi akwan pii ho-thermal runaway, internal short circuits, electrolyte leakage, ne mfiri a asɛe. Prismatic nkwammoaa di asiane ahorow bi ho dwuma bere a wɔde afoforo reba no. Dade a ɛyɛ den no bɔ ho ban yiye wɔ akyi a wɔtow no ho bere a wɔde toto kotoku mu nkwammoaa ho no, ɛwom sɛ ɛmma mfiri ahoɔden pii nsen sɛnea wɔayɛ no cylindrical de.

Tumi kɛse a ɛwɔ nkwammoaa biara mu no ma ahoɔden pii wɔ ade biako mu. A huammɔdi wɔ prismatic nkwammoaa biako mu no betumi ama ahoɔden pii afi mu sen nkwammoaa a ɛyɛ kurukuruwa a entumi nyɛ adwuma. Nanso, nkwammoaa a ɛwɔ pack mu nyinaa kakraa bi na ɛtew mmeae dodow a ebetumi adi huammɔ no so. Saa aguadi yi-OFF hwehwɛ battery management system nhyehyɛe a wɔde ahwɛyiye yɛ de hwɛ cell biara voltage, ɔhyew, ne tebea a ɛwɔ ahoɔden so.

LFP chemistry a ɛwɔ prismatic nkwammoaa mu no de ahobammɔ mu mfaso horow a efi awosu mu ba. Lithium iron phosphate kyerɛ ɔhyew a ɛyɛ den a ɛkorɔn sɛ wɔde toto nickel-cobalt chemisries ho a, asiane a ɛwɔ hɔ sɛ ɔhyew a ɛwɔ hɔ no bɛkɔ fam wɔ tebea horow a wɔde di dwuma ɔkwammɔne so mpo mu. Nneɛma no ntumi nyi oxygen mfi mu bere a ɔhyew no porɔw no, na ɛtew ogya ho asiane so. Saa su yi ma LFP Prismatic nkwammoaa no yɛ nea ɛyɛ anigye titiriw ma nneɛma a wɔde sie a egyina hɔ a ahobammɔ ho ahwehwɛde ahorow si ahoɔden a ɛyɛ den ananmu.

Wɔn a wɔyɛ nneɛma no ka ahobammɔ ho nneɛma pii bom-Pressure relief vents, mprempren mfiri a wɔde twa mu, ɔhyew fuse, ne ogya-retardant separators. Battery management system no ma kwan a edi kan a wɔfa so bɔ wɔn ho ban, esiw overcharge, over-discharge, ne ɔhyew a ɛboro so a ebetumi akanyan cascading huammɔdi ahorow.

Wiase nyinaa prismatic cell gua no kyerɛ nkɔso akwan a ɛyɛ den. Guadiɛ ho boɔ a wɔbuo no firi dɔla ɔpepepem 7.5 kɔsi dɔla ɔpepepem 12.5 wɔ afe 2024 mu, na nsusuiɛ no duu dɔla ɔpepepem 35.2 wɔ afe 2033. Eyi gyina hɔ ma afe afe nkɔsoɔ a ɛyɛ kɛseɛ a ɛwɔ 9.5% ne 15% ntam, a anyinam ahoɔden kar a wɔfa ne ahoɔden a wɔde sie a wɔyɛ no foforɔ titire na ɛde ba.

Asia-Pacific di nneɛma a wɔyɛ so, ɛyɛ bɛyɛ 45-70% wɔ wiase nyinaa nneɛma a wɔyɛ no mu. China di tumi a ɛma wɔyɛ nneɛma no anim, a wɔn a wɔyɛ adwuma titiriw bi ne CATL, BYD, ne LG Chem Operating Gigafactories a ɛma prismatic nkwammoaa wɔ nsenia kɛse so. Northvolt Europa adwumayɛbea a ɛwɔ Norway, a ɛde n’ani si 60 GWh afe afe tumi so wɔ afe 2024 mu no gyina hɔ ma adwumayɛbea a ɛwɔ Lithium-ion a ɛso sen biara wɔ Asia akyi.

Mfiridwuma mu nneɛma foforo kɔ so ntɛmntɛm. Solid-State battery nkɔso hyɛ ahoɔden densities a ɛkorɔn ne ahobammɔ a ɛkɔ anim, a prismatic formats yiye-wɔde si solid electrolytes. Nhwehwɛmu a wɔbɛyɛ wɔ silicon anode ahorow, graphene ɔhyew sohwɛ nneɛma, ne cathode nnuru a ɛkɔ anim ho no bɛyɛ mfaso ama prismatic cell designs.

Kar adwumayɛ ho ɔkwankyerɛfo no de prismatic nkwammoaa ka ho kɛse. Volkswagen ayɛ nhyehyɛɛ sɛ wɔde prismatic cells bedi dwuma wɔ 80% mu wɔ ne EVs mu wɔ afe 2025 mu, de chemistry nsakrae abiɛsa-LFP, manganese-gyina, ne nickel-adefo-a wɔde bɛyɛ adwuma yiye wɔ kar no afã horow mu. Saa nhyehyeɛ a ɛfa nneɛma ahodoɔ ho yi ma wɔn a wɔyɛ no tumi ne batere ho nsɛm a ɛfa kar ho no hyia wɔ kar ahwehwɛdeɛ pɔtee bi ho a ɛnsakra nnoɔma a wɔde yɛ adwuma kɛseɛ.

Akyinnyegye a ɛyɛ prismatic versus cylindrical no nni amansan mmuae. Format biara di mu wɔ nsɛm pɔtee bi mu. Cylindrical cells fata applications a ɛhwehwɛ ahoɔden a ɛkɔ soro, ɔhyew sohwɛ a ɛkyɛn so, ne mfiri a ɛyɛ den. Power Tools, E-Bikes, ne High-Adwumayɛ kar ahorow a ɛde wɔn mfaso horow di dwuma. Standardization ma wotumi yɛ design iteration ne component sourcing ntɛmntɛm.

Prismatic nkwammoaa no da no adi sɛ ɛyɛ papa wɔ baabi a ahunmu a ɛyɛ adwuma yiye, tumi a ɛkorɔn wɔ nkwammoaa biara mu, ne nkitahodi dodow a ɛso atew no ma ɛsom bo. Large-format EVs, grid storage systems, ne telecommunications backup power nya mfaso fi saa su ahorow yi mu. Tumi a wɔde yɛ dimensions ma aplikeshɔn pɔtee bi no ma wotumi ne system architecture bom denneennen.

Battery pack adwumfo no fa akwan a wɔde afrafra so kɛse, na wɔpaw cell formats a egyina kar fã ne use case so. Adwumayɛ-kar a ɛfa kar ho no betumi de nkwammoaa a ɛyɛ cylindrical adi dwuma ama tumi a ɛyɛ den a ɛkorɔn. Mass-Kɔ so anyinam ahoɔden kar ahorow a wɔde wɔn ani si range ne ɛka a wɔbɔ no yiye so no fa prismatic nkwammoaa ho. Lɔre ne aguadi kar ahorow a ɛhwehwɛ sɛ wɔde ahoɔden kɛse sie wɔ dodow a wɔahyɛ da ayɛ mu no paw prismatic configurations.

Guadi mu nkɔso kyerɛ sɛ ɛbɛkɔ so atra ase abom mmom sen sɛ ɛbɛyɛ format dominance. Nneɛma a wɔyɛ no mu nkɔso, nnuruyɛ mu nkɔso, ne ɛka a wɔtew so no bɛkɔ so wɔ bere koro mu ama ahorow abien no nyinaa. Nea eye sen biara a wopaw no gyina application-Ade pɔtee a ɛho hia so-ahoɔden density, tumi density, ɛka, nkwa nna, ahobammɔ, ne form factor anohyeto ahorow so.

Prismatic Cells

Prismatic nkwammoaa taa di 2,000 kosi 7,000 charge cycle a egyina chemistry ne adwumayɛ tebea so. LFP prismatic nkwammoaa taa boro 5,000 cycles a ɛwɔ thermal management a ɛfata na ɛkwati deep discharge a ɛwɔ 20% state of charge ase. Cycle life kyerɛ ase sɛ mfe 5-10 wɔ application dodow no ara mu.

Prismatic nkwammoaa no boa mast charging ne thermal management nhyehyɛe a ɛfata. Nneɛma pii a wɔayɛ no gye 1C kosi 2C charge rates, a ɛkyerɛ sɛ wɔde 30-60 simma. Nneɛma a ɛma onwini a ɛkɔ akyiri a wɔde nsu a ɛma onwini anaa phase-change nneɛma di dwuma no siw ɔhyew a ɛkɔ soro dodo wɔ bere a wɔde anyinam ahoɔden bɔ ntɛmntɛm no mu, na ɛma nkwammoaa no nya akwahosan ne ahobammɔ.

Per-nkwaboaa ho ka a wɔbɔ ma prismatic units no taa boro cylindrical cells esiane customization ne automation a ɛba fam nti. Nanso, system-level costs betumi agye prismatic designs atom denam nhyiam adwumayɛfo a wɔatew so ne nneɛma kakraa bi so. Ka a wɔbɔ wɔ owurayɛ ho nyinaa gyina dwumadie-nneɛma pɔtee a ɛka ho ne nneɛma a wɔyɛ, nkabom a ɛyɛ den, ne tumi a wɔhwehwɛ.

Prismatic nkwammoaa no yɛ nea wotumi de di dwuma bio koraa. Wobetumi atetew aluminium anaa dade a wɔde ayɛ aduru no mu na wɔayɛ ho adwuma wɔ ɔkwan a ɛnyɛ nea wɔde yɛ adwuma so. Wobetumi anya lithium, cobalt, nickel, ne manganese na wɔasan de adi dwuma bio wɔ batere foforo mu. Nneɛma a wɔde di dwuma bio no kɔ so trɛw mu ma edi batere dodow a ɛrenyin fi kar a anyinam ahoɔden wom ne ahoɔden a wɔkora so ho dwuma a ɛkɔ nkwa awiei no ho dwuma.