TL;DR – Abin da Za Ku Koyi a cikin Dakika 30:
• Madaidaicin hanyar cajin lithium-ion shine CC-CV (Constant Current-Constant Voltage).
• Lokaci na CC yana ba da caji mai sauri (har zuwa 60-80% iya aiki), lokaci na CV yana tabbatar da aminci topping-off kuma yana kare rayuwar baturi.
Matsakaicin zafin jiki (kasa da 0°C ko sama da 45°C) na da illa ga caji.
• Mai sadaukarwa Tsarin Gudanar da Baturi (BMS) yana da mahimmanci don daidaitaccen ƙarfin lantarki da ƙa'ida ta yanzu.
Yadda kuke cajin baturin lithium-ion yana ɗaya daga cikin mahimman abubuwan da ke ƙayyade tsawon rayuwarsa, aikinsa, da amincinsa. Duk da yake yana iya zama kamar aiki na yau da kullun, tsarin cajin lithium-ion ya bambanta da tsoffin fasahar batir kamar gubar-acid ko NiMH. Bin mafi kyawun ayyuka shine mabuɗin don hana lalacewa da haɓaka ROI.
Me yasa Tsarin Cajin Lithium-ion ke Musamman
Ba kamar batirin gubar-acid ba, ƙwayoyin lithium-ion ba za su iya jure yin caji fiye da kima ba. Suna buƙatar daidaitaccen sarrafawar caji na halin yanzu da ƙarfin lantarki don tabbatar da ions lithium a amince da su shiga cikin yadudduka na graphite na anode. Daidaitaccen, hanyar da masana'antu suka yarda da ita don cikakkiyar cajin lithium-ion mai aminci shine CC-CV (Constant Current-Constant Voltage) algorithm. Mai ƙarfi Tsarin Gudanar da Baturi (BMS) yana da mahimmanci don aiwatar da wannan algorithm daidai.
Mataki na 1: Cigaba na Yanzu (CC) - Matsayin Cajin Saurin
A lokacin ci gaba na halin yanzu, caja yana ba da tsayayyen halin yanzu, ƙayyadaddun halin yanzu.
• Halaye : Ƙarfin wutar lantarki yana tashi akai-akai yayin da ya rage a gyarawa.
Ƙarfin Ƙarfi : Batirin Li-ion zai iya kaiwa 60% zuwa 80% na yawan ƙarfinsa a wannan mataki.
• C-Rate : Madaidaicin caji na yanzu yawanci yana tsakanin 0.2C da 1.0C. Don tantanin halitta 2000mAh, ƙimar 0.5C zai zama 1000mA.
• Matsayin Canjawa : Lokacin CC yana ci gaba har sai ƙarfin lantarki ya kai iyakarsa, yawanci a kusa da 4.2V kowace tantanin halitta.
Sashe na 2: Ƙarfin Wutar Lantarki (CV) - Kashe Kayayyakin Kariya
Da zarar an kai madaidaicin 4.2V, caja yana canzawa ba tare da matsala ba zuwa yanayin wutar lantarki akai-akai.
• Halaye : Caja yana riƙe da ƙarfin lantarki a tsaye yayin da na yanzu yana raguwa a hankali.
Me yasa Ya zama Dole : Idan ba tare da wannan mataki na CV ba, na yanzu zai ci gaba da tura ions a ciki, yana haifar da lithium mai ƙarfe zuwa farantin karfe a kan anode, babban dalilin gudu na thermal.
• Kashewa : Zagayowar cajin lithium-ion ya ƙare, ko ƙare, lokacin da cajin halin yanzu ya ragu zuwa ƙaramin matakin 'ƙarshen caji', yawanci tsakanin 0.02C da 0.07C.
Kyawawan Ayyuka da Gudanar da Cajin BMS
ba sa faruwa a cikin sarari. Don aikace-aikacen ainihin duniya kamar cibiyoyin bayanai ko tashoshin sadarwa, mai ƙarfi
Tsarin Gudanar da Baturi (BMS) yana da mahimmanci.
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Kula da Zazzabi : Ya kamata a yi caji tsakanin 0°C zuwa 45°C.
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Zaɓin Caja : Koyaushe yi amfani da cajar da aka ƙera don Li-ion chemistry wanda ke bin madaidaicin bayanan CC-CV.
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Madaidaicin Wutar Lantarki : BMS mai inganci yana tabbatar da kowane tantanin halitta ya kai mafi kyawun ƙarfin lantarki, yana haɓaka ƙarfin kowane zagayowar caji.
Aikace-aikacen Duniya na Gaskiya a cikin Ƙarfin Mahimmanci
Ka'idojin aminci da ingantaccen cajin lithium-ion ba na ilimi ba ne kawai; sun kasance tushen tushen tsarin ajiyar wutar lantarki na zamani. A cikin UPS, baturan lithium suna ba da ƙarfin ƙarfin ƙarfi don ƙarin ƙaramin ƙarfin ajiya. Madaidaicin hanyar CC-CV yana da mahimmanci don dogaro. Bugu da ƙari, haɓakar amfani da hasken rana da Tsarin Ajiye Makamashi na Baturi (BESS) ya dogara da ƙayyadaddun cajin algorithms don haɓaka tsawon rayuwar haɗa makamashi mai sabuntawa tare da ajiyar baturi.
Don aikace-aikace masu mahimmancin manufa, DFUN yana ba da ci gaba Maganin baturi na lithium-ion da aka tsara don yin aiki ba tare da matsala ba tare da dandalin BMS ɗinmu, yana tabbatar da aikin caji mafi kyau, tsawaita rayuwar zagayowar, da ingantaccen aminci.
