TL;DR – Nea Wobɛsua wɔ Sikɔne 30 Mu:
• Ɔkwan a wɔfa so de lithium-ion charge a wɔtaa fa so ne CC-CV (Constant Current-Constant Voltage).
• CC phase ma ntɛmntɛm charge (ɛkɔ 60-80% tumi), CV phase hwɛ hu sɛ ahobammɔ topping-off na bɔ battery nkwa ho ban.
• Ɔhyew a ɛboro so (a ɛba fam sen 0°C anaa ɛboro 45°C) sɛe ade a wɔde charge.
• Obi a wɔahyira wɔn ho so Battery Management System (BMS) ho hia ma voltage ne current nhyehyɛe a ɛyɛ pɛpɛɛpɛ.
Sɛnea wobɛbɔ lithium-ion batere ho ka no yɛ nneɛma a ɛho hia sen biara a ɛkyerɛ ne nkwa nna, ne dwumadi, ne ahobammɔ no mu biako. Bere a ebia ɛbɛyɛ te sɛ nea wɔyɛ no daa no, lithium-ion charge nhyehyɛe no da nsow wɔ batere mfiridwuma dedaw te sɛ lead-acid anaa NiMH ho. Nneyɛe pa a wobedi akyi no yɛ ade titiriw a ɛbɛma wɔasiw adwumayɛ a ɛnkɔ yiye ano na wɔama ROI ayɛ kɛse.
Nea enti a Lithium-Ion Charge Adeyɛ no Yɛ Soro
Nea ɛnte sɛ batere a wɔde lead-acid ayɛ no, lithium-ion nkwammoaa ntumi nnyina ahoɔden a ɛboro so ano. Wɔhwehwɛ sɛ wɔde charge current ne voltage a wɔhwɛ so pɛpɛɛpɛ na ama wɔahwɛ ahu sɛ lithium ions bɛkɔ anode no graphite layers no mu dwoodwoo. Ɔkwan a ɛyɛ gyinapɛn, a nnwumakuw gye tom a wɔfa so nya lithium-ion charge a edi mũ na ahobammɔ wom ne CC-CV (Constant Current-Constant Voltage) algorithm. A ɔyɛ den Battery Management System (BMS) ho hia na ama wɔde saa algorithm yi adi dwuma yiye.
Ɔfã 1: Mprempren Current (CC) – Fast Charging Phase
Wɔ current phase a ɛkɔ so daa no mu no, charger no de current a ɛyɛ pintinn a wɔahyɛ ato hɔ ma.
• Su : Voltage kɔ soro bere nyinaa bere a current kɔ so yɛ fixed.
• Tumi a wɔanya : Li-ion battery betumi adu ne tumi nyinaa mu 60% kosi 80% wɔ saa bere yi mu.
• C-Rate : Charging current a eye sen biara no taa yɛ 0.2C ne 1.0C ntam. Wɔ 2000mAh cell ho no, 0.5C rate bɛyɛ 1000mA.
• Transition Point : CC phase no kɔ so kosi sɛ cell voltage no bedu ne anohyeto a ɛsen biara, mpɛn pii no bɛyɛ 4.2V wɔ cell biara mu.
Stage 2: Constant Voltage (CV) – Nneɛma a Ɛbɔ Ho Ban Topping-Off no
Sɛ wodu 4.2V threshold no so pɛ a, charger no dan kɔ constant voltage mode a ɛnyɛ den.
• Su : Charja no kura voltage no mu pintinn bere a current no brɛ ase nkakrankakra.
• Nea Enti a Ɛho Hia : Sɛ ɛnyɛ CV stage yi a, anka current no bɛkɔ so apia ions akɔ mu, na ama dade lithium ayɛ plate wɔ anode no so, ade titiriw a ɛma ɔhyew guan.
• Termination : Lithium-ion charge cycle no wie, anaasɛ ɛba awiei, bere a charging current no kɔ fam kɔ 'end-of-charge' level a ɛba fam, mpɛn pii no ɛwɔ 0.02C ne 0.07C ntam.
Nneyɛe Pa ne BMS Monitoring
Charging management nkɔ so wɔ vacuum mu. Wɔ wiase ankasa applications te sɛ data centers anaa telecom base stations, a ɛyɛ den
Battery Management System (BMS) ho hia.
✅
Temperature Monitoring : Ɛsɛ sɛ charge ba yiye wɔ 0°C ne 45°C ntam.
✅
Charger Selection : Fa charger a wɔayɛ ama Li-ion chemistry a ɛdi CC-CV profile a ɛteɛ akyi di dwuma bere nyinaa.
✅
Voltage Precision : A quality BMS hwɛ hu sɛ cell biara du voltage a eye sen biara, maximizing tumi ma charge cycle biara.
Wiase Ankasa mu Nneɛma a Wɔde Di Dwuma wɔ Tumi a Ɛho Hia Mu
Nnyinasosɛm ahorow a ɛfa lithium-ion charging a ahobammɔ wom na etu mpɔn ho no nyɛ nhomasua mu de ara kwa; wɔyɛ fapem ma nnɛyi tumi a wɔde sie nhyehyɛe ahorow. Wɔ UPS mu no, lithium batere ma ahoɔden a ɛkɔ soro ma ahoɔden a wɔde sie a ɛyɛ ketewaa. Sɛnea CC-CV kwan no yɛ pɛpɛɛpɛ no ho hia na ama wɔatumi de ho ato so. Bio nso, owia ahoɔden ne Battery Energy Storage Systems (BESS) a wɔde di dwuma kɛse no de wɔn ho to charging algorithms a ɛyɛ nwonwa so na ama ahoɔden a wɔyɛ no foforo ne battery akorae a wɔde bɛka abom no nkwa nna ayɛ kɛse.
Wɔ mission-critical applications ho no, DFUN de advanced ma lithium-ion battery solutions a wɔayɛ sɛ ɛne yɛn BMS platform no bɛyɛ adwuma a ɛnyɛ den, ahwɛ ahu sɛ charging adwumayɛ a eye sen biara, cycle nkwa nna a ɛtrɛw, ne ahobammɔ a ɛkɔ anim.
