TL;DR – Koj Yuav Kawm Li Cas hauv 30 Thib Ob:
• Tus qauv lithium-ion them tus txheej txheem yog CC-CV (Tam sim no tsis tu ncua-Qhov Voltage).
• CC theem muab kev them ceev ceev (txog 60-80% muaj peev xwm), CV theem ua kom muaj kev ruaj ntseg topping-off thiab tiv thaiv roj teeb lub neej.
• Qhov kub siab tshaj (qis dua 0 ° C lossis siab dua 45 ° C) yog qhov tsis zoo rau kev them nyiaj.
• Kev mob siab rau Battery Management System (BMS) yog qhov tseem ceeb rau qhov tseeb qhov hluav taws xob thiab kev tswj hwm tam sim no.
Yuav ua li cas koj them lub roj teeb lithium-ion yog ib qho tseem ceeb tshaj plaws uas txiav txim siab nws txoj sia, kev ua haujlwm, thiab kev nyab xeeb. Txawm hais tias nws yuav zoo li kev ua haujlwm niaj hnub, cov txheej txheem lithium-ion charges sawv sib nrug ntawm cov roj teeb qub xws li lead-acid lossis NiMH. Ua raws li cov kev coj ua zoo tshaj plaws yog qhov tseem ceeb rau kev tiv thaiv kev ua haujlwm tsis zoo thiab ua kom ROI ntau tshaj plaws.
Vim li cas cov txheej txheem Lithium-Ion Charge yog txawv
Tsis zoo li cov roj teeb lead-acid, lithium-ion hlwb tsis tuaj yeem zam dhau kev them nyiaj ntau dhau. Lawv xav tau ib qho kev tswj xyuas tam sim no thiab qhov hluav taws xob kom ntseeg tau tias lithium ions muaj kev nyab xeeb intercalate rau hauv anode's graphite txheej. Tus txheej txheem, kev lag luam-tau txais txoj hauv kev rau kev ua tiav thiab kev nyab xeeb lithium-ion nqi yog CC-CV (Constant Current-Constant Voltage) algorithm. Muaj zog Battery Management System (BMS) yog qhov tseem ceeb rau kev siv cov algorithm kom raug.
Theem 1: Tsis tu ncua tam sim no (CC) - Theem Fast Charging
Thaum lub sij hawm tam sim no tsis tu ncua, lub charger muab ib qho chaw ruaj khov, predetermined tam sim no.
• Yam ntxwv : Voltage nce tsis tu ncua thaum tam sim no tseem nyob ruaj.
• Muaj Peev Xwm Tau Txais : Lub roj teeb Li-ion tuaj yeem ncav cuag 60% txog 80% ntawm nws lub peev xwm tag nrho thaum lub sijhawm no.
• C-Rate : Qhov zoo tshaj plaws them tam sim no feem ntau nyob nruab nrab ntawm 0.2C thiab 1.0C. Rau 2000mAh cell, 0.5C tus nqi yuav yog 1000mA.
• Transition Point : CC theem txuas ntxiv mus txog thaum lub cell voltage nce mus txog qhov siab tshaj plaws, feem ntau nyob ib ncig ntawm 4.2V ib lub xov tooj ntawm tes.
Theem 2: Tsis tu ncua Voltage (CV) - Kev Tiv Thaiv Topping-Off
Thaum lub 4.2V pib mus txog, lub charger seamlessly hloov mus rau qhov voltage hom.
• Yam ntxwv : Lub charger tuav lub voltage tsis tu ncua thaum tam sim no maj mam tapers down.
• Vim Li Cas Nws Tseem Ceeb : Yog tsis muaj CV theem no, tam sim no yuav txuas ntxiv thawb ions hauv, ua rau cov hlau lithium rau phaj ntawm lub anode, yog thawj qhov ua rau thermal runaway.
• Kev Txiav Txim : Lub voj voog them lithium-ion ua tiav, lossis txiav tawm, thaum lub sijhawm them tam sim no poob mus rau qhov qis 'kawg-ntawm-tus nqi' qib, feem ntau ntawm 0.02C thiab 0.07C.
Cov Kev Cai Zoo Tshaj Plaws thiab BMS
Kev Saib Xyuas Kev Tswj Xyuas Kev Tswj Xyuas tsis tshwm sim hauv lub tshuab nqus tsev. Rau cov ntawv thov tiag tiag hauv ntiaj teb xws li cov chaw zov me nyuam lossis chaw nres tsheb hauv xov tooj, muaj zog
Battery Management System (BMS) yog qhov tseem ceeb.
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Kev ntsuas kub : Kev them nyiaj yuav tsum tau ua kom zoo ntawm 0 ° C txog 45 ° C.
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Kev xaiv Charger : Ib txwm siv lub charger tsim rau Li-ion chemistry uas ua raws li qhov tseeb CC-CV profile.
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Voltage Precision : Ib qho zoo BMS ua kom txhua lub xov tooj mus txog qhov pom qhov hluav taws xob, ua kom muaj peev xwm tshaj plaws rau txhua lub voj voog.
Daim ntawv thov tiag-ntiaj teb hauv Critical Power
Cov hauv paus ntsiab lus ntawm kev nyab xeeb thiab ua tau zoo lithium-ion them tsis yog kev kawm xwb; lawv yog lub hauv paus rau niaj hnub fais fab thaub qab systems. Hauv UPS, cov roj teeb lithium muab lub zog ceev kom muaj zog ntau dua. Qhov tseeb ntawm CC-CV txoj kev yog qhov tseem ceeb rau kev ntseeg tau. Tsis tas li ntawd, kev loj hlob ntawm kev siv lub hnub ci zog thiab Roj Teeb Hluav Taws Xob Cia Systems (BESS) tso siab rau cov txheej txheem them nyiaj zoo tshaj plaws los ua kom lub neej ntev tshaj plaws ntawm kev koom ua ke lub zog tauj dua tshiab nrog cov roj teeb cia.
Rau cov ntawv thov tseem ceeb rau lub hom phiaj, DFUN muaj kev tshaj lij Lithium-ion roj teeb cov kev daws teeb meem tsim los ua haujlwm seamlessly nrog peb BMS platform, kom ntseeg tau tias kev them nyiaj zoo tshaj plaws, lub neej voj voog txuas ntxiv, thiab txhim kho kev nyab xeeb.
