Kasi Mababati gha Lithiamu Kasi ghali na Vici?

Vigaŵa vyakukhozga vya mkuwa panji aluminiyamu ivyo vikuwunganya magesi ghanandi kufuma ku vikwi vya maselo na kuvitumizga ku vigaŵa viŵiri vikuru. Kwambura iwo paketi yingagwira ntchito yayi. Nawo ŵabudiska paketi yakutenthemeska chomene, yikutaya mtunda, panji yikukora moto.

Umo ŵakugwiriskirika nchito nadi

Maselo ghakwamba ghakuyana waka na ma module ghakugwiriskira ncito vingwe vya nickel panji waya -} mawaya aluminiyamu. Mamodule ghakupokera mndandanda- kulumikizgika kwizira mu mabasi ghanadi. Vinthu vitatu vikuru ivyo vikununkhira mazuŵa ghano:

Busbar wakufipirwa

Vigaŵa vinandi vya 0.8–1.5 mm foil na filimu ya PET panji filimu ya PI yakuwonda pakati, hot- pressed na kuchepa -} vyakuvunda. Pafupifupi 800 V pulatifomu yiliyose yikuŵagwiliskira ntchito chifukwa inductance yikukhira pasi pa 20 nH. Porsche Taycan, Hyundai Ioniq 5/6, Kia EV6, magalimoto ghanandi gha ku China 800 V, ghose ghali na laminate.

Busbar wakusinthasintha

Nthaka ya 0.1-0.3 mm yambura kanthu ya mkuwa iyo yikuŵikika pa mphepete pera, pakati yikukhala yakusinthasintha. Tesla wakaŵagwiliskira ntchito pa mapaketi gha Model 3/Y, ndipo pamanyuma wakasintha ku laminate. Pakuti paketi iyi njakumanyikwa chomene apo paketi yikwenera kupotoloka na chassis.

Bar ya Rigid

Simple 10×50 mm panji 10 × 100 mm yakugaya mkuwa uwo mukuwona mu mapaketi gha BYD Blade, nkhongono zinandi-} pake, na malonda ghanandi gha LFP-" mapaketi. Kutafuna na kuŵa wakusuzga yayi, kweni ŵakung’ambika na mabowo gha mabatani pamanyuma pa thermal vikwi vichoko waka.

Real-" density ya sonosono apa nkhugwiliskira ntchito .

Mkuwa mu paketi ya batire (kuzizimiska kwa chilengiwa, semi-yikajalika):2.0–2.2 A / mm2 wakulutilirani wakuvikilirika makora.
5 mm × 30 mm bar=150 mm22 → 300–330 Kupitilira, 600–700 A kwa 10-30 s kuphulika ndiyo nyengo zose.
Ŵanthu awo ŵakuzunura 1.6/mm2 ŵakukopera matebulo gha switchgear; mukati mwa paketi, mphepo yikuluka nadi.

Nthowa zakukolerana nkhuwona zuŵa lililose

• Welding wakuchedwa, King. Mkuwa-- mkuwa panji mkuwa - -aluminiyamu (na nickel kusintha shim) wakupereka <0.03 mΩ pa chigaŵa chilichose.
• Kupindika: nkhongono-sutulo ya ŵanyamata ŵakutemwa M10 / M12 tin-plated bolts + Belleville wakuchapa, 20-25 Nm. Uteŵeti wakusuzga yayi.
• Friction stir panji maginiti pulse welding: CATL na vinyake vichoko waka, pa nyengo iyi yayi.
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Nambala kufuma ku mapaketi ine ndekha nagaŵa pasi .

• 2021–2023 Model 3/Y (Panasonic 2170): 4-layer × 1 mm × 38 mm wakukhwaskika ≈ 500 Kulutilira
• 2024 Nthano Y (LG 4680): 5-layer × 1.2 mm × 42 mm
• Xiaomi SU7 800 Pack: 6-layer × 1 mm × 48 mm
• BYD Seal / Qin Plus DM-i: 10 mm × 80 mm rigd bar, ~350 A
• Megapack 2 XL: 12 mm × 120 mm tin - m'mapiri ghakukhora, 1000 Kupitilira pa chigaŵa chilichose .
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Kutentha kukucepeska ulemu ŵose .

90℃kulutilira pa mkuwa, 110-120℃short {{3}" nyengo njakuzomerezgeka, pachanya pa 130℃filimu yakuvikilira yikwamba kudandaula. Mapaketi ghanandi ghakuŵika NTCs mwaluŵiro pa busbar ndipo BMS yikuwonelera nga ni hawk.

Vinthu ivyo tikwenera kukumana navyo.

ISO 6469-3 – chivikiliro cha magesi

ISO 12405 – pack test spec

IEC 62660-3 – selo na kupakira ntchito / chivikiliro

QC/T 1075 – EV ya ku China (usange yikuguliskika ku China)

UL 1937 panji UL 2580 kuyana na msika .

Icho nchichoko chomene. Vinthu vinyake vyose ndipo ningaŵa waka wakuwerezgapo ma datasheet.