Na 2025, ihe karịrị 68% nke ihe omume batrị nwere ụkwụ abụọ eletrik sitere na sistemụ njikwa batrị (BMS), dịka data International Electrotechnical Commission siri kwuo. Ihe sekit a dị oke egwu na-enyocha mkpụrụ ndụ lithium ugboro 200 kwa nkeji, na-arụ ọrụ nchekwa ndụ atọ:
1. Voltage Sentinel
• Nkwụghachi ụgwọ karịrị: Na-ebelata ike na> 4.25V / cell (dịka, 54.6V maka ngwugwu 48V) na-egbochi ire ere electrolyte.
• Nzọpụta n'okpuru voltaji: Na-amanye ọnọdụ ihi ụra na <2.8V/cell (dịka, <33.6V maka sistemụ 48V) na-egbochi mmebi na-enweghị ike ịgbanwe.
2. Njikwa dị ugbu a
| Ọnọdụ ihe egwu | Oge nzaghachi BMS | Akwụsịla nsonaazụ ya |
|---|---|---|
| Nbufe oke ugwu na-arị elu | Oke dị ugbu a na 15A na 50ms | Ọkụ njikwa |
| Ihe omume mkpirisi okirikiri | Nkwụsị sekit na 0.02s | Cell thermal agba ọsọ |
3. Nleba anya thermal ọgụgụ isi
- 65°C: Mbelata ike na-egbochi ịsa mmiri electrolyte
- <-20°C: Na-ekpo ọkụ sel tupu chajịa ka ịzenarị lithium plating
Ụkpụrụ-Check Triple
① MOSFET Count: ≥6 MOSFET yiri nke ahụ na-ejikwa mwepụ 30A+
② Ịhazi oge ugbu a:> 80mA na-ebelata ikike cell iche iche
③ BMS na-egbochi ntinye mmiri
Mwepu dị egwu
① Ebula bọọdụ BMS ekpughere ekpughere (ihe egwu ọkụ na-abawanye 400%)
② Zere ịgafe ihe mgbochi ugbu a ("ụdị waya ọla kọpa" na-emebi ihe nchebe niile)
"Mgbanwe voltaji gafere 0.2V n'etiti sel na-egosi ọdịda BMS dị nso," ka Dr. Emma Richardson, onye nyocha nchekwa EV na UL Solutions dọrọ aka ná ntị. Nyocha voltaji kwa ọnwa nwere multimeter nwere ike ịgbatị ndụ mkpọ site na 3x.
Oge nzipu: Ọgọst-16-2025
