Vim li cas thiaj yog 0.07mm txhuas ntawv ci honeycomb vaj huam sib luag cov ntaub ntawv tseem ceeb rau kev txo nqi txo, ua tau zoo & kev txhim kho kev nyab xeeb hauv lub zog tshiab?

Vim li cas thiaj yog 0.07mm txhuas ntawv ci honeycomb vaj huam sib luag cov ntaub ntawv tseem ceeb rau kev txo nqi txo, ua tau zoo & kev txhim kho kev nyab xeeb hauv lub zog tshiab?

Eco-a. Tus nqi txo & Txhim khu kev ua tau zoo: Multi-Scale Value Analysis Raws li Material-Structure-Industry Chain

A. Micro-Strengthening Mechanism ntawm Substrate Alloy System thiab Structure Efficiency Optimization

Cov 0.07hli ntawv ci Txais cov 3003 / H18 strain-hardened alloy, thiab nws muaj pes tsawg leeg tsim raws li lub synergistic mechanism ntawm “Cov tshuaj muaj zog ntxiv dag zog + lim hardening”:

• Lub luag haujlwm ntawm Mn Element: Mn forms α-Al(Mn,Fe) cov txheej txheem daws teeb meem (solubility 0.7%) hauv Al matrix, uas inhibits dislocation txav los ntawm lattice distortion thiab txhim kho cov alloy qhov corrosion kuj. Hauv qhov nruab nrab ntsev tsuag tshuaj ntsuam (GB / T 10125-2021, 5% NaCl daws, 35℃, pH 6.5-7.2), Tsis muaj pitting corrosion tau pom tom qab 1000 xuabita, nrog tus nqi corrosion ≤0.02mm / xyoo - zoo tshaj rau cov ntshiab txhuas (0.08mm/xyoo);
• Kev cai ntawm Mg Element: Qhov txawv ntawm atomic radius ntawm Mg (1.60Oh) thiab Al (1.43Oh) ua rau grain ciam cais, txhim kho grain ciam kev sib raug zoo zog. Lub zog tensile ncav cuag 280-300MPa (GB / T 228.1-2021, tensile tus nqi 5mm / min), uas yog 115%-173% siab dua li ntawm 3003 aluminium hauv O temper (110-130MPa), muab txhua yam kev txhawb nqa rau ultra-thin substrates.

Lub honeycomb core txais ib qho qauv hexagonal tsis tu ncua (cell pitch 8-12mm, phab ntsa thickness ratio 1:15). Raws li Gibson-ashy honeycomb qauv theoretical qauv (Gibson, Ashly m f. Cellular: Cov qauv thiab cov khoom[M], 2010), nws sib npaug clastic modulus yog xam los ntawm:\(E_{tus eq}= 0.34frac{E_s}{\sqrt{3}}\sab laug(\tus ncej{t}{l}\yog)^2)qhov twg \(E_s) yog lub elastic modulus ntawm aluminium matrix (70GPa), t yog aluminium foil thickness, thiab l yog lub cell sab ntev. Qhov xam \(E_{tus eq}\) Nws yog nyob ntawm 2.8GPa rau 3.2Gpa, Nrog ntsuas tus nqi ntsuas ntawm 2.95gpa (Kev sib txawv urriation≤5% los ntawm theoretical tus nqi). Cov txheej txheem kev ua tau zoo (Zog-qhov hnyav piv) Mus txog 28munpath ³ mg / m³, uas yog 15.2% siab dua li ntawm rhombic honeycombs (24.3MN · kg/m³), thiab cov khoom ntim piv tsuas yog 4%. Qhov kev tsim no txo ​​cov khoom siv rov qab los ntawm “uniform quab yuam kis ntawm cov hlwb”. Piv nrog Q235 steel roj teeb ncej (Qhov ceev 7.85g / cm3, \(E=206GPa\)), nyob rau hauv tib yam dabtsi yog khoov nruj (TSIS MUAJ) kev xav tau, kev siv cov khoom siv yog txo los ntawm 72%. Raws li cov 2024 aluminium nqi (18,000 RMB / TUJ) thiab steel nqi (5,000 RMB / TUJ), unit cheeb tsam cov ntaub ntawv nqi txo los ntawm 32 RMB/㎡ rau 8.96 RMB/㎡.

Cov txheej txheem ntau lawm ntawm Hebei Tianyingxing txais yuav peb theem ua haujlwm: “1850mm HC rau-siab txias dov zeb – nruam annealing rauv (480℃ × 30 s) – 16-daim tawv nqaij siab dhau zeb”:

• Txias Rolling Stage: Asynchronous dov (ua hauj lwm yob ceev sib txawv 2.5%) yog siv los kho lub phaj zoo los ntawm shear strain generated los ntawm qhov sib txawv ceev ntawm sab sauv thiab qis yob. Lub zog dov yog tswj ntawm 200-220kN, thiab qhov tseeb dov mus txog ± 0.003mm (tshaj qhov yuav tsum tau muaj siab ntawm ± 0.005mm hauv GB / T 3880.3-2012);
• Daim tawv nqaij Pass theem: Tension leveling (Kev kub ceev 150-180N / mm²) yog siv los tswj lub phaj zoo kam rau ua ≤5I (GB / T 13288-2022, yoj qhov siab ≤5mm ib meter ntev). Tus nqi ntau lawm nce mus txog 92% (8% siab dua cov tsoos plaub-siab txias dov mills), thiab lub zog noj ib chav tsev muaj peev xwm yog 120kWh / ton (25% qis dua batch annealing txheej txheem), ntxiv txo cov nqi tsim khoom.

B.Quantitative qauv rau tag nrho-Industry-Chain Tus nqi ntawm lub teeb yuag

Lub teeb yuag ntawm lub zog tshiab lub tsheb roj teeb pob ua raws li cov qauv kev sib raug zoo ntawm “poob phaus – kev siv zog – ntau yam extension” (raws li NEDC lub voj voog kev xeem, qauv loj n=50 tsheb, r² = 0.98):\(\Delta C = -0.08\Delta m,\quad Delta R = 0.8Delta m)qhov twg \(\Delta C\) yog qhov kev hloov hauv 100km fais fab kev noj (kWh/100 km), \(\Delta m\) yog qhov hloov pauv ntawm cov roj teeb pob hnyav (kg), thiab \(\Delta R\) yog qhov kev hloov ntawm kev tsav tsheb (km). Thaum lub 0.07mm aluminium foil honeycomb vaj huam sib luag (Qhov ceev 0.38-0.42g / cm³) yog siv nyob rau hauv pob thav duab, piv nrog Q235 steel ncej (~ 35kg) thiab 6061 khoom aluminium panels (~ 22 kg), nws qhov hnyav yog txo mus rau 11-13 kg, nrog rau qhov hnyav txo tus nqi ntawm 51.4%-68.6%. Hloov mus rau hauv tus qauv muab \(\Delta C = -1.8-2.3kWh/100km) thiab \(\Delta R=15.2-20.4km\). Hloov kho kev tshuaj ntsuam xyuas ntawm qee tus kws kho tsheb tus qauv X qhia: lub roj teeb pob hnyav poob los ntawm 520kg (hlau) ua 485kg (cov khoom no), 100km fais fab tuag poob los ntawm 16.0kWh rau 14.2kWh (\(\Delta C=-1.8kWh\)), thiab kev tsav tsheb nce los ntawm 560km mus rau 582km (\(\Delta R=22km\)), nrog qhov sib txawv ≤8% los ntawm cov qauv kev twv ua ntej.

The Life Cycle Cost (LCC) yog xam raws li ISO 15686-5:2020 (lub voj voog 10 xyoo, luv nqi 8%):

• Tus nqi yuav khoom: Rau ib tug scale ntawm 100,000 tsheb, cov khoom siv tus nqi ib lub tsheb thav duab txo los ntawm 850 Rmb (hlau) rau 320 Rmb (cov khoom no), txuag 53 lab RMB ib xyoos twg;
• Tus Nqi Ua Haujlwm: Txhua lub tsheb txo qhov hnyav los ntawm 22kg, nrog kev thauj mus los txhua xyoo ntawm 10,000km. Ib lub tsheb siv 30L roj ib 100 km (roj nqi 8 RMB/L), txuag 12,000kWh ntawm kev thauj mus los txhua xyoo, Sib npaug rau 6,000 RMB hauv cov nqi hluav taws xob (0.5 RMB/kWh);
• Tus nqi siv dua: Tus nqi seem ntawm aluminium foil account rau 60% ntawm tus nqi raw khoom (tsuas 20% rau hlau), ua rau 10-xyoo rov ua dua cov txiaj ntsig sib txawv ntawm 28 lab RMB.Comprehensive xam pom tias LCC yog 38.2% qis dua cov ntaub ntawv steel thiab 15.6% qis dua ntawm cov khoom siv aluminium.

Eco-B. Txhim kho kev nyab xeeb: Multi-Dimensional Protection Mechanisms Raws li New Energy Risk Scenarios

A. Kev Tiv Thaiv Txheej Txheem rau Thermal Runaway Thaiv thiab Kev Ntsuas Kub Ua Qauv

Lub thermal stability ntawm aluminium alloy substrate (melting point 660 ℃) yog ua tiav los ntawm peb txheej kev tiv thaiv ntawm “substrate – daim plhaub – lub tsev”:

• Txheej Txheej: Honeycomb core nto yog coated nrog epoxy-raws li nplaim-retardant txheej (kev tsim qauv: 60% E-44 epoxy cob, 20% aluminium hydroxide, 15% polyamide curing tus neeg sawv cev, 5% defoamer), nrog rau qhov ntsuas oxygen ntawm 32% (GB / T 2406.2-2009, ntsug hlawv txoj kev), ua tau raws li Class B1 tus qauv tiv thaiv hluav taws. Thermogravimetric Analysis (TGA, 10℃ / min, N₂ huab cua) qhia tau hais tias char yield ntawm 800 ℃ mus txog 35%, uas yog 600% siab dua li ntawm uncoated aluminium honeycombs (5%);
• Txheej Txheem Thermal rwb thaiv tsev: Tsis tu ncua hexagonal hlwb tsim cov txheej cua kaw (Thermal conductivity 0.026W / hli(kil k · k)), uas ua ke nrog txheej (Thermal conductivity 0.18W / hli(kil k · k)) ua ib tug composite thermal rwb thaiv tsev system. Raws li Fourier txoj cai(q=-k\nabla T\), Tag nrho cov thermal conductivity yog xam los ntawm 0.12W /(kil k · k), 40% qis dua qhov uas tsis muaj coated aluminium honeycombs (0.20W /(kil k · k)).

Thermal runaway simulation test los ntawm National New Energy Vehicle Material Testing Center (CNAS L1234):

• Khoom siv: Roj teeb thermal runaway simulator (cua sov tus nqi 5 ℃ / min, Qhov kub siab tshaj 900 ℃);
• Cov ntsuas ntsuas: Backfire nto kub (Tus kab laug gb 38031-2020 yuav tsum tau ≤180 ℃), CO emission (yuav tsum tau <300ppm ua), structural kev ncaj ncees (tsis muaj vau);
• Qho kawg: Hauv 30 feeb, Qhov kub ntawm qhov hluav taws kub yog 152 ℃, CO emission yog 180ppm, thiab tus nqi deformation yog 4.8% (deformation tus nqi ntawm tsoos txhuas daim hlau yog 21.5%), ua tau raws li tus qauv yuav tsum tau ua.

B. Cov qauv kev ntseeg siab thiab Micro-Characterization nyob rau hauv ib puag ncig heev

Temperature Cycle Reliability: Kev ntsuas kub ntawm lub voj voog (-404h → 120 ℃ rau 4h, 50 mus ib ncig) tau ua raws li GB / T 2423.22-2012. Lub zog shear tau sim siv lub tshuab ntsuas hluav taws xob thoob ntiaj teb (NWS-100) (GB / T 14522-2009), thiab cov txiaj ntsig qhia:

• Lub zog shear txo los ntawm thawj 2.1MN / m² rau 1.94MN / m², nrog tus nqi attenuation ntawm 7.6% (kev lag luam yuav tsum tau ≤10%);
• Qhov tawv nqaij txo qis los ntawm thawj 3.2GPa rau 2.95GPa, nrog tus nqi khaws cia ntawm 92.2%;
• Micro-Mechanism: Kis Electron Microscopy (TEM, JEM-2100) kev soj ntsuam qhia tau hais tias qhov kev faib ua feem ntawm qhov txias-dov zoo nkauj {112}<110> txo los ntawm 35% rau 33%, thiab cov qoob loo loj tsis loj hlob (khaws cia ntawm 5-8μm), kom tsis txhob muaj qhov kub thiab txias ntawm qhov tawg ntawm qhov kub thiab txias.

Impact thiab Vibration Performance:

• Falling Ball Impact Test(GB / T 1451-2005): Ib lub pob steel 5kg poob los ntawm qhov siab ntawm 1.5m. Lub honeycomb core absorbs lub zog los ntawm “gradual yas deformation ntawm cov hlwb”. Lub zog-txav nkhaus thaum lub sij hawm cuam tshuam qhia qhov siab tshaj plaws ntawm lub zog ntawm 8kN thiab lub zog nqus ntawm 120J (deformation 25 hli), tsis muaj kab nrib pleb ntawm lub vaj huam sib luag. Piv nrog PP honeycomb panels (zog 65j, tawg ntawm 15mm deformation), qhov cuam tshuam tsis kam yog txhim kho los ntawm 84.6%;
• Vibration Test(GB / T 2423.10-2019): Sweep vibration ntawm 10-2000Hz nrog acceleration ntawm 20m / s². Ib tug laser vibrometer (PSV-500) ntsuas qhov resonance zaus ntawm 350Hz (zam kev ua haujlwm ntau zaus ntawm 100-300Hz rau cov roj teeb pob), thiab kev vibration acceleration kis tus nqi yog 0.78 (qis dua qhov kev lag luam xav tau ntawm 1.0), txo qhov kev pheej hmoo ntawm kev qaug zog tab (Kev ntsuam xyuas lub neej qaug zog qhia tau hais tias tus naj npawb ntawm tab pob tawg mus nce los ntawm 10⁶ mus rau 10⁷).

C. Rwb thaiv tsev System tsim thiab hluav taws xob ua haujlwm rau 800V High-Voltage Platforms

Rau 800V high-voltage tsheb (ISO 6469-3:2018), ib tug composite rwb thaiv tsev tswvyim ntawm “epoxy-fluorocarbon ob txheej txheej – cua rwb thaiv tsev txheej” yog saws:

• Txheej Txheej: Hauv qab epoxy txheej (30μm) muab kev rwb thaiv tsev yooj yim, thiab saum toj kawg nkaus fluorocarbon txheej (20μm) txhim kho huab cua tsis kam. High-resistance meter (ZC36) kuaj lub ntim resistivity ntawm 1 × 10¹⁵Ω·cm (GB / T 1410-2006 xav tau ≥1 × 10¹⁴Ω·cm), nrog rau qhov tawg voltage tsis kam ntawm 2000V (1lub min, GB / T 1408.1-2016) thiab dielectric poob tangent (ua tan, 1kHz) ntawm 0.002 (tsawg dielectric poob nyob rau hauv high zaus thiab high voltage, tsis txhob overheating hauv zos);
• Huab Cua Txheej Tsim: Cov huab cua txheej thickness nyob rau hauv honeycomb hlwb yog 8-12mm. Raws li Paschen nkhaus, Cov huab cua tawg lub zog ntawm qhov tuab no yog ≥3kV / mm. Ua ke nrog cov txheej txheem, nws ua tiav “ob chav rwb thaiv tsev”. Txawm nyob 90% kev vaum (GB / T 2423.3-2016), cov rwb thaiv tsev kuj tseem ≥1 × 10¹³Ω, txo qhov kev pheej hmoo luv luv los ntawm 90%.

Kev sib piv nrog cov khoom siv hluav taws xob tseem ceeb (Lub rooj 1):

(Cov ntaub ntawv Source: Cov ntawv xeem thib peb tshaj tawm CNAS-L1234-2024-001 rau 004)

Eco-C. Kev Kho Kom Haum Kev Lag Luam: Scenario-Specific Customization thiab Parametric Design (Xws li Kev Tshaj Tawm Parameter Table)

Lub rooj 2: Parametric Tsim Table ntawm 0.07mm Aluminium Ntawv Nyiaj Honeycomb Panels rau Tshiab Zog Scenario

(Tsab ntawv: Cov qauv hauv kab lus yog qhov kev xeem. Areal ntom yog kuaj raws li GB / T 451.2-2002)

A. Customization Mechanism rau Fais Fab Roj Hmab Ncej

Tus tsim ntawm CATL CTP 3.0 thav duab yog nyob ntawm qhov sib txuam ntawm “cov yam ntxwv ntawm tes – kev xav tau ntawm cov qauv”:

• LFP Cells (100kWh): Nrog lub zog ntom ntawm 160, kg, Lawv muaj lub cev hnyav hnyav (Txhua kg ntawm cov hlwb pab 0.16kH ntawm lub zog). Yog li ntawd, ib tug 10 hli cell piv tau saws (txo cov khoom siv los ntawm 12%) nrog kev ua yeeb yaj kiab ntawm 3.8kg / ㎡, adapting rau kev siv ntev hauv cov tsheb caij tsheb (10 Xyoo / 200,000km). Kev tshawb nrhiav nkees nkees (10⁶ Cycles, Kev ntxhov siab R = 0.1) qhia lub zog khaws cov nqi khaws cia 85%;
• NCM hlwb (200kWh): Nrog lub zog ntom ntawm 210Wh / kg thiab siab volumetric lub zog ntom (450Wh / l), Cov thav duab yuav tsum tau withstand siab loads (Cell Cov Ntaus Siab 15kpa). Yog li ntawd, Ib lub suab nrov 8 hli cell + Zos 6061-T6 Qhov Cuab Lub Zog Raj (Elastic Modulus 69GPA) yog siv, Nce lub tensile flexural tensile lub zog los ntawm 6.0% thiab tswj tau deflection li ntawm 1.5mm / m kom tau raws li cov khoom siv puv nkaus ntawm cov tsheb lag luam (Tag Nrho Qhov hnyav 4.5 tons yog li tons).

Xeem rau ntawm ib qho hluav taws xob ntshiab SUV: Cov pob thav tsawg tsawg dua los ntawm 485kg (hlau) rau 320kg, Txo cov tsis muaj txiaj ntsig ntawm lub siab xyoo 18 kg, txo cov txheej txheem tshem tawm kev ncua kev ntxhov siab los ntawm 12%, Thiab luv luv ntawm braking nrug deb ntawm 0.8m (100-0KM / h). Epoxy Cov Qauv Txheej Txheem nplaum (Shear Lub Zog 15MPA) yog siv rau kev sib dhos ua ke, txo bolt siv los ntawm 40% thiab txo lub voj voog sib dhos los ntawm 120s / unit mus rau 72s / unit, txhim kho efficiency los ntawm 40%.

B. Scenario-Specific Optimization rau Cov Khoom Siv Hluav Taws Xob

• Tsev Lub Zog Cia Txee (5-20kWh): Lub 15mm nyias tsim tso siab rau cov yam ntxwv ntawm qhov cua ntawm honeycomb channels (huab cua ceev 0.3m / s, Re = 1200, laminar flow xeev), nrog lub zog cua sov ntawm 5W / ㎡·K. Qhov kub sib txawv ntawm lub txee yog ≤5 ℃ (12℃ rau tsoos steel txee), txuag 80kWh ntawm txhua xyoo kiv cua siv zog (xam raws li 8h txhua hnub ua haujlwm thiab 40W kiv cua zog);
• Loj-Scale Energy Storage Stations (100MWh +): Lub 25mm tuab vaj huam sib luag yog ntxiv nrog a 15% E-glass reinforcement txheej. Kev hloov kho interface (silane coupling tus neeg sawv cev KH-550) nce lub zog sib txuas ntawm cov iav fiber ntau thiab txhuas ntawv ci rau 10MPa (tensile shear xeem, GB / T 7124-2021), Kev txhim kho cua siab tsis kam ntawm 1.0kPa mus rau 1.5kPa (GB / T 5135.1-2019, cua qhov ntsuas cua ceev 30m / s), ntsib cov typhoon tej yam kev mob nyob rau hauv ntug hiav txwv dej (100-xyoo rov qab lub sij hawm typhoon cua ceev 45m / s).

Eco-D. Technical Bottlenecks thiab Txiav-Edge Development

A. Core Process Breakthroughs hauv Ultra-Thin Aluminium Foil Manufacturing

Plate Shape Control Bottleneck: Lub dov ntawm 0.07mm aluminium ntawv ci yog nquag “nruab nrab waves” (wavelength 500-800 hli, yoj qhov siab 3-5mm), nrog rau tus nqi tawm los xwb 80% rau tsoos plaub-siab txias dov mills. Breakthroughs yog tiav los ntawm:

• Daim ntawv thov ntawm HC Six-High Cold Rolling Mills: Ua haujlwm yob txoj kab uas hla φ120mm, thaub qab yob txoj kab uas hla φ600mm. Combined tswj ntawm “zoo/negative yob dabtsi yog khoov + nruab nrab yob hloov” yog saws, nrog lub yob dabtsi yog khoov quab yuam ntawm ± 50kN thiab kev hloov pauv ntawm ± 15 hli, tswj lub phaj zoo kam rau ua nyob rau hauv 5I;
• Asynchronous Rolling txheej txheem: Qhov sib txawv ceev ntawm 2%-3% nruab nrab ntawm sab sauv thiab sab rolls qhia txog shear strain γ = 0.05-0.08, ua cov hlau ntws zoo sib xws thaum dov. Qhov tshwm sim ntawm qhov nruab nrab nthwv dej txo qis los ntawm 15% rau 3%, thiab tus nqi tawm los nce mus rau 92%.

Ntsiab rau Roj Contamination Control: Residual dov roj rau ntawm aluminium foil nto (feem ntau yog tsim los ntawm cov roj hauv paus + fatty acid ester additives) txo qhov sib txuas sib txuas lub zog ntawm cov tub ntxhais honeycomb los ntawm 30%. Kev sib xyaw ua ke ntawm “electrolytic tu – cua kub kom qhuav” yog saws:

• Electrolytic Ntxuav: 5% Naoh + 3% Na₂CO₃ solution, kub 60 ℃, Tam sim no ceev 2A / dm², Lub sijhawm electrolysis 30s, nrog cov roj dov kev tshem tawm efficiency ≥95%;
• Cua kub ziab: 120℃ cua kub (cua ceev 5m/s), qhuav lub sij hawm 15s. Cov roj seem yog txo kom 2.3mg / m² (GB / T 16743-2018 xav tau ≤5mg/m²), thiab lub zog sib txuas sib txuas yog ruaj khov ntawm 12MPa (GB / T 7124-2021).

B. Cutting-Edge Technology Routes thiab Industrialization Prospects

• Khoom siv tshiab: Kev loj hlob ntawm aluminium-graphene composite ntawv ci (graphene ntxiv 0.5%) siv a “Pob milling-ultrasonic composite dispersion” kev ua (pob milling ceev 300r / min, Ultrasonic zog 600W). Lub dav hlau dispersion degree ntawm graphene yog ≥90%. TEM kev soj ntsuam qhia tias graphene tsim a “network-zoo li cov qauv kev txhawb nqa” hauv aluminium matrix. Lub hom phiaj tensile lub zog yog 350MPa (17% siab tshaj 3003/H18), nrog ib tug elongation ntawm so tswj ntawm 12% (zam brittleness), adapting rau siab zog ceev yuav tsum tau ntawm 4680 loj cylindrical hlwb (300Wh/kg);
• Txheej txheem Innovation: Txoj kev loj hlob ntawm honeycomb core-vaj huam sib luag ua ke kub nias txoj kev sib sau. Lub pwm kub tswj yog siv los tswj qhov kub ntawm 180 ℃, siab ntawm 1.5MPa, thiab tuav lub sij hawm ntawm 10 min, ncaj qha ua tiav metallurgical bonding ntawm honeycomb core thiab vaj huam sib luag, tshem tawm cov txheej txheem kev sib txuas. Lub voj voog ntau lawm yog luv los ntawm 72h mus rau 48h, thiab txheej aging yog zam (lub zog attenuation txo los ntawm 15% rau 5% Tom qab kev laus ntawm 120 ℃ rau 1000h);
• Daim ntawv thov nthuav dav: Txoj kev loj hlob ntawm Al₂O₃-SiO₂ puas ceramic txheej (thickness 15 hli) rau cov roj teeb solid-state (Ua haujlwm kub 150 ℃) siv cov txheej txheem plasma txau (Lub zog 40 kW, nrug 150mm). Cov txheej ceev yog ≥95%, nce qhov kub siab tshaj plaws tiv thaiv mus rau 200 ℃ thaum tuav lub zog tawg ntawm 2000V, hloov mus rau industrialization kev nce qib ntawm cov roj teeb uas muaj zog los ntawm Toyota thiab CATL (2025-2027).

Eco-E. Core Q&A: In-depth Analysis los ntawm Professional Perspective

Qi1: Dab tsi yog lub hauv paus rau Pareto optimization ntawm 0.07mm aluminium foil thickness?

A: Raws li cov “tus nqi-kev ua tau zoo-txheej txheem” Pareto optimization nkhaus (Daim duab 1), 0.07mm nyob ntawm qhov zoo tshaj plaws frontier ntawm qhov nkhaus:

• Performance Dimension: Piv nrog 0.05mm aluminium foil, lub zog tensile yog nce los ntawm 15% (280MPa vs 243MPa), thiab lub zog shear yog nce los ntawm 18% (2.1MN/m² vs 1.78MN/m²), ua tau raws li 15kPa stacking siab yuav tsum tau ntawm cov roj teeb pob; lub neej qaug zog (10⁶ Cycles) yog nce los ntawm 25%, zam kev “low-cycle fatigue puas” ntawm ultra-nyias foils;
• Nqe Dimension: Piv nrog 0.09mm aluminium ntawv ci, kev siv cov khoom siv yog txo los ntawm 22% (thaj chaw ceev 3.8kg/㎡ vs 4.87kg/㎡), unit nqi raug txo los ntawm 18% (200 RMB/㎡ vs 244 RMB/㎡), thiab dov zog noj yog txo los ntawm 12% (120PEB: 136 kWh/ton);
• Txheej txheem Dimension: Cov txiaj ntsig ntawm 0.05mm aluminium foil tsuas yog 75% (nquag mus strip breakage), thaum 0.09mm xav tau ntau dua dov quab yuam (280kN vs 220 kN), nce khoom siv los ntawm 20%. Nyob rau hauv sib piv, 0.07mm muaj tus nqi tawm los ntawm 92% thiab nws dov quab yuam sib tw HC rau-siab mills uas twb muaj lawm, ua rau lub siab tshaj plaws industrialization feasibility.

Q2: Puas yog kev ua haujlwm qaug zog ntawm ultra-thin aluminium foil honeycomb panels ua tau raws li 10-xyoo / 200,000km kev pabcuam yuav tsum tau siv lub zog tshiab?

A: Kev txheeb xyuas los ntawm kev sim qaug zog (GB / T 30767-2014, Kev ntxhov siab R = 0.1, zaus 10Hz) qhia:

• Lub Hwj Chim Lub Hwj Chim Lub Zog: Qhov siab tshaj plaws σ_max = 80MPa (accounting rau 28.6% ntawm lub zog tensile). Tom qab 10⁷ cycles, lub zog tuav tus nqi yog 88% (GB / T 38031-2020 xav tau ≥80%), sib raug rau kev tsav tsheb ntawm 200,000km (kwv yees 500 vibration cycles ib kilometer);
• Lub Zog Cia Txias Txias Txias: Qhov siab tshaj plaws σ_max = 50MPa (accounting rau 17.9% ntawm lub zog tensile). Tom qab 10⁸ cycles, lub zog tuav tus nqi yog 92%, sib raug rau 15 xyoo kev pabcuam (kwv yees li 6.7 × 10⁶ vibration cycles ib xyoos);
• Micro-Mechanism: Thaum qaug zog, Lub dislocation ceev ntawm aluminium matrix nce ntawm 1 × 10¹⁴m⁻² mus rau 3 × 10¹⁴m⁻², tab sis tsis muaj qhov pom tseeb qaug zog tawg yog tsim (Kev soj ntsuam SEM qhia tau hais tias cov pob txha dimple qhov tob yog khaws cia ntawm 8-10μm), lees paub qhov kev cia siab rau kev pabcuam ntev.

Q3: Cov khoom puas ua tau raws li Electromagnetic Compatibility (EMC) kev xav tau rau 800V high-voltage platforms?

A: Kev kuaj xyuas los ntawm EMC (GB / T 18655-2018) lees paub tag nrho ua raws li 800V platform yuav tsum:

• Radiated Disturbance: Hauv 30MHz-1GHz zaus band, Qhov cuam tshuam voltage yog ≤40dBμV (txwv 46dBμV), tau txais txiaj ntsig los ntawm electromagnetic shielding khoom ntawm aluminium ntawv ci (Kev tiv thaiv kev ua haujlwm ≥40dB, GB / T 17738-2019);
• Ua Kev Nyuaj Siab: Hauv 150kHz-30MHz zaus band, Qhov cuam tshuam tam sim no yog ≤54dBμA (txwv 60dBμA). Cov huab cua txheej thiab txheej ntawm honeycomb hlwb tsim ib qho “impedance txuam qauv” kom txo tau kev cuam tshuam;
• Kev tiv thaiv: Tsis muaj qhov txawv txav tshwm sim hauv electrostatic paug (ESD) kuaj (tiv tauj 8kV, cua tso tawm 15kV, GB / T 17626.2-2018). Vim yog cov khoom siv nto tsis kam ntawm 1 × 10⁸Ω (nruab nrab ntawm tus neeg xyuas pib thiab insulator), hluav taws xob zoo li qub tuaj yeem tso tawm maj mam kom tsis txhob tawg.

Qi4: Dab tsi yog qhov sib xyaw ua ke ntawm cov cua sov dissipation mechanism ntawm cov khoom siv no thiab cov tshuab ua kua txias hauv cov chaw nres tsheb loj loj?

A: Los ntawm CFD (Paub meej) simulation thiab kuaj xyuas, ib tug synergistic tshav kub dissipation system ntawm “cell natural convection – kua txias yuam convection” yog tsim:

• Honeycomb Channels: 8-12mm cell pitch forms ntsug convection channel nrog cua tshaj tawm ntawm 0.3-0.5m / s thiab tshav kub dissipation zog ntawm 5-8W / ㎡·K, txo qhov kub ntawm lub zog ntawm lub zog cia ntawm 55 ℃ txog 48 ℃;
• Kua Cooling Synergy: Cov kua cua txias phaj yog sib txuas rau lub vaj huam sib luag honeycomb siv thermal conductive nplaum (Thermal conductivity 2W / hli(kil k · k)). Lub vaj huam sib luag honeycomb ua raws li ib tug “thermal conductive intermediate txheej”, nce kev ua tau zoo ntawm cov cua sov hloov ntawm cov hlwb mus rau cov kua txias phaj los ntawm 15% (thermal kuj txo los ntawm 0.15K / W txog 0.13K / W piv nrog kev sib txuas ncaj qha);
• Temperature Uniformity: Synergistic heat dissipation txo qhov kub ntawm qhov sib txawv ntawm lub txee los ntawm 8 ℃ mus rau 3 ℃ (GB / T 36276-2018 yuav tsum tau ≤5 ℃), zam lub peev xwm ntawm tes attenuation los ntawm lub zos hotspots (muaj peev xwm tuav tau nce los ntawm 85% rau 90% tom qab 1000 mus ib ncig).

Q5: Puas yog Kev Ntsuam Xyuas Lub Neej (LCA) ntawm cov khoom no ua raws li cov “Ib qho Carbon” hom phiaj?

A: LCA tsom xam raws li ISO 14040-2006 (cradle-to-grave, functional unit: 1㎡ honeycomb vaj huam sib luag) qhia:

• Kev Siv Zog: Lub zog siv nyob rau hauv theem tsim khoom yog 280kWh (suav nrog aluminium smelting, dov, thiab tsim), uas yog 46% qis dua ntawm cov ncej steel (520kWh) thiab 67% qis dua ntawm carbon fiber honeycomb panels (850kWh);
• Cov pa roj carbon emission: Lub voj voog tag nrho CO₂ emission yog 12kg, uas yog 57% qis dua ntawm cov ncej steel (28kg) thiab 73% qis dua ntawm carbon fiber honeycomb panels (45kg) (carbon fiber ntau yuav tsum tau acrylonitrile oxidation, ua rau muaj cov pa roj carbon ntau);
• Ubno: Aluminium ntawv ci tuaj yeem ua tau 100% recycled los ntawm melting, nrog rau kev siv hluav taws xob rov ua dua ntawm tsuas yog 5% ntawm thawj aluminium (GB / T 27690-2011). Rov ua dua 10 xyoo tuaj yeem txo CO₂ emissions los ntawm 8kg / ㎡, ua raws li qhov yuav tsum tau muaj cov pa roj carbon hneev taw (≤100kg CO₂eq/kWh) ntawm EU Txoj Cai Roj Teeb Tshiab (2023/1542).