Lan mooy jëfandikoo gi ci batëri litium ci batëri litium? {2

Lan mooy jëfandikoo gi ci batëri litium ci batëri litium?

Nov 26, 2025

Bayil ab bataaxal

Maa ngi def batëri ak BMS ci lu tollu ci 12 at. Saa yu nit ñi laaj ma "lu dëgg-dëgg balancing def?", maa ngi leen wane ñaari nataal: benn ci 2{3} 1-old 36 V e-bike pack te amul benn balance ( genn-wàll selul yi ci 1.8 V, beneen bi dafay nuru benn batch ak 100 mA equilibre (selil yépp ba leegi ci 12 mV ginaaw ñetti at). Loolu mooy poñ bi yépp ci benn nataal.

Ci pack dëgg yi, duñu musa judd. Jël 100 màrk- Samsung 50E selul yu bawoo ci benn ndab: tasaaroo kàttan gi dafay faral di ±30 mAh, sa bopp, sa bopp-dicharge mën na wuute ci 2-3 yoon, te resistance bi ci biir mën na wuute 3-5 mΩ. Ginaaw 200 cycles, yu néew doole yi daanu ci ginaaw. Su selil bi gëna néew doole ci sarse ak selul bi gëna am doole ci debit bi, mën nañu ko jëfandikoo ngir génne ko. Yaa ngi ñàkk 20 ba 40% ci kàttan gi ñuy jëfandikoo ci at mi njëkk kese.

Active Cell Balancing

Ñaari anam kese la nit ñi mëna ekilibre ci liggéey bi:

Lii mooy li 95 % ci pack yi ci suufu 20 kWh.
chips dëgg yi dinga gis ci tablo yi:

TI BQ769x2 / BQ769x3 / BQ78z100

Anag Devices LTC6804 / LTC6811 / LTC6813

Maxim MAX920 / MAX14921

NXP MC3371 / MC33772

courant bled bu am doole: 80-150 mA (BQ76952 mën na tëye 220 mA sudee danga paral ñaari pin).
Valeur resistor ci defarum masse: daanaka 27 Ω wala 33 Ω2512 1 W.
Reglage trigger yi may jëfandikoo:
Tambali deret ci 15-25 mV ci kaw pack bi ci diggante CV, taxaw su delta wàccee ci suufu 6-8 mV.
Soo jéeme topp 2 mV, dinga togg tablo bi ba fàww.

Tàngoor mooy jafe-jafe bi dëgg. Pack scooter 16s ak 100 mA deret mën na sànni 7-8 W jublu ci PCB BMS. Loolu moo waral 20{7}}dolar e-bike boards warp ak crack ginaaw benn ete ci jant bi.

Soo demee ci kaw ~ 30 kWh daanaka ku nekk dafay soppi liggéey bi.

Real- misaali àdduna laa xàddi:

Model S/X (2012–2021): DC{) DC{2}C brik yu ndaw yi ci HVJB, ~1 A ci modulu bu nekk

BMW i3 (at yépp): modulu transformateur inductive, ratio 24 ba 1, lu tollu ci 2 A

Balde Blade: flow- ay tablicacator yu sukkandiko ci jëmmal TLF3555568

Ay monsat yu am staasioŋu chinois: module DC{- module yuy toxal 15–20 A ci 700 V bu 700 V bu 700 V

Off{)- ni nit ñi dañuy jënd:

1-2 AliExpress bu wert- boards (li am 8-16 relais yu ndaw)

Heltec / Orion BMS Gen4 / REC Q / Dilitium: 5-8 A ak seddal bu baax

Cell Balancing

OEMs yu bari ci 10 ba 15 % ci SoC ndax courbe voltage bi dafa gëna wàññeeku ci suufu 3.45 V (NMC) wala 3.40 V (LFP).
Tesla waits until >90 % SoC te du def ludul balance ci 30-60 simili yu mujj yi.
Sama 2017 BMW i3 i3 dafay wane ekilibre inductive bi, dafay yewwu su delta > 30 mV ak courant < 5 A.

Amnaa benn tiruwaar bu fees dell ak 2016–2018- yu gaaw ci EV yu bawoo ci Chine, loolu moo denc $ 0.80 ci dindi resistor yu deret yi. Ginaaw 18 weer, selul yu néew doole yi dañuy dem negatif bu nekk, di tasaaroo, dendrite yi dañuy màgg, di seey ci separatër bi. Seetal naa 72 V 20 Ah wàcci ba 8-9 Ah ci 14 weer. Slap $12 ekilibre bu am doole ci kaw leen, ñu dellusi ci 18-19 Ah. Lesson jàng na anam wu metti.

Ci suufu 15 kWh → passif lu baax la, te dina ñu des ba fàww (poñ yi, jumtukaay yi, drone yi)

400 V+ or >50 kWh → aktif wala nga jël ay module at mu nekk

Bépp EV buñ jaay tay amna balance. Benn variable bi mooy ndax 33 Ω dafay des ci 33 Ω wala tablo bu am $300.

Loolu mooy balance selul bi. Dara dara lu am solo. Benn rak bu tàyyil, dafa tere selul yu baax yi ñu jël ko.

Cell Balancing