Mabhatiri ndechimwe chezvakakosha zvikamu zve electrochemical simba rekuchengetedza masisitimu. Nekuderedzwa kwe lithium bhatiri mutengo uye kuvandudzwa kwe lithium bhatiri simba density, kuchengetedzeka uye hupenyu hurefu, kuchengetedza kwesimba kwakaunzawo muhukuru-hukuru maapplication. Ichi chinyorwa chichakubatsira iwe kunzwisisa kuchengetedza kwesimba Several yakakosha paramita yelithium bhatiri.
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lithium bhatiri simba
lithium bhatirikugona ndechimwe cheakakosha ekuita zviratidzo zvekuyera lithium bhatiri kuita. Kugona kwerithium bhatiri yakakamurwa kuita yakayerwa huwandu uye chaiyo kugona. Pasi pemamwe mamiriro ezvinhu (kubuda chiyero, tembiricha, kupera kwemagetsi, nezvimwewo), huwandu hwemagetsi anoburitswa nebhatiri lithium inonzi rated capacity (kana Nominal capacity). Mayuniti akajairwa ehuwandu ndeye mAh uye Ah = 1000mAh. Kutora 48V, 50Ah lithium bhatiri semuenzaniso, iyo lithium bhatiri huwandu ndeye 48V×50Ah = 2400Wh, inova 2.4 kilowatt maawa.
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lithium battery discharge C rate
C inoshandiswa kuratidza iyo lithium bhatiri yekuchaja uye yekuburitsa huwandu hwehuwandu. Kuchaja uye kuburitsa mwero = kubhadharisa uye kuburitsa ikozvino / yakayerwa huwandu. Semuenzaniso: kana lithium bhatiri ine chiyero chakayerwa che100Ah ichiburitswa pa50A, chiyero chayo chekubuda i0.5C. 1C, 2C, uye 0.5C mazinga eti lithium battery discharge, inova chiyero chekukurumidza kubuda. Kana iyo inoshandiswa simba inobudiswa muawa 1, inonzi 1C discharge; kana ikabuda mumaawa maviri, inonzi 1/2 = 0.5C kubuda. Kazhinji, huwandu hwebhatiri re lithium hunogona kuwonekwa kuburikidza nekubuda kwakasiyana mafungu. Kune 24Ah lithium bhatiri, iyo 1C yekuburitsa ikozvino 24A uye iyo 0.5C yekuburitsa ikozvino i12A. Iyo yakakura yekuburitsa ikozvino. Nguva yekubuda ipfupi zvakare. Kazhinji kana tichitaura nezve chiyero chesimba rekuchengetedza sisitimu, inoratidzirwa nehukuru hwesimba reiyo system/system kugona (KW/KWh). Semuenzaniso, chiyero chesimba rekuchengetera magetsi chiteshi i500KW/1MWh. Pano 500KW inoreva kubhadharisa kwakanyanya uye kuburitswa kwesimba rekuchengetedza simba. Simba, 1MWh inoreva huwandu hwehurongwa hwechiteshi chemagetsi. Kana simba racho rikaburitswa neyakayerwa simba re500KW, huwandu hwechiteshi chemagetsi hunoburitswa mumaawa maviri, uye chiyero chekuburitsa i0.5C.
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SOC (State of charge) mamiriro ekubhadharisa
Iyo lithium bhatiri mamiriro ekuchaja muChirungu iState of Charge, kana kuti SOC kwenguva pfupi. Inoreva chiyero chesimba rakasara re lithiamu bhatiri mushure mekunge yashandiswa kwenguva yakati kana kuti yakasara isina kushandiswa kwenguva yakareba uye simba rayo muhurumende yakazara. Inowanzoratidzwa sechikamu chezana. Zvichitaurwa zviri nyore, ndiyo yasara simba re lithium bhatiri. simba.
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DOD (Depth of Discharge) kudzika kwekubuda
Kudzika kweDicharge (DOD) inoshandiswa kuyera chikamu pakati pe lithium battery discharge uye lithium battery rated capacity. Kune imwecheteyo lithium bhatiri, iyo yakadzika DOD kudzika inopindirana nehupenyu hwelithium bhatiri. Iyo yakadzika kudzika kwekuyerera, inopfupika iyo lithium bhatiri kutenderera hupenyu. Naizvozvo, zvakakosha kuenzanisa iyo inodiwa yekumhanyisa nguva yelithium bhatiri nekudiwa kwekuwedzera lithium bhatiri kutenderera hupenyu.
Kana shanduko muSOC kubva isina zvachose kusvika kune yakazara chaji yakanyorwa se 0 ~ 100%, zvino mune inoshanda maapplication, zviri nani kuita rimwe nerimwe lithium bhatiri kushanda muhuwandu hwe10% ~ 90%, uye zvinokwanisika kushanda pazasi. 10%. Ichave yakanyanyisa-kuburitswa uye kumwe kusinga gadziriswe kemikari kuita kuchaitika, izvo zvinokanganisa hupenyu hwebhatiri lithium.
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SOH (State of Health) lithium bhatiri hutano mamiriro
SOH (State of Health) inoratidza ikozvino lithium bhatiri kugona kuchengetedza simba remagetsi maererano neiyo lithium bhatiri nyowani. Inoreva chiyero cheyazvino lithium bhatiri izere-chaji simba kune itsva lithium bhatiri izere-chaji simba. Tsanangudzo yezvino yeSOH inonyanya kuratidzwa mune akati wandei senge kugona, magetsi, mukati kuramba, kutenderera nguva uye peak simba. Simba uye simba ndizvo zvinonyanya kushandiswa.
Kazhinji, kana iyo lithium battery capacity (SOH) inodonha kusvika pa70% kusvika 80%, inogona kunzi yasvika EOL (kuguma kweLithium battery life). SOH chiratidzo chinotsanangura hutano huripo hwe lithiamu bhatiri, nepo EOL inoratidza kuti lithium bhatiri yasvika kumagumo ehupenyu. Inoda kutsiviwa. Nekutarisa kukosha kweSOH, nguva yekuti lithium bhatiri isvike kuEOL inogona kufanotaurwa uye inowirirana kuchengetedza uye manejimendi inogona kuitwa.
Nguva yekutumira: Chivabvu-08-2024
