Chii Chinonzi Kuchaja Ikozvino?
Mutengi anozviratidza aine spec sheet achibvunza kana vachikwanisa kuchaja pa1C. Unogona. Asi 1C idenga, kwete kurudziro. Vanhu vazhinji havawane musiyano uyu, kana kuti vanouwana asi havana basa nazvo. Kusvikira bhatiri rafa kare uye munhu anofanira kutsanangura kuti chii chakashata.
Kuchaja ikozvino ndiko kukurumidza kwaunosunda magetsi mubhatiri. Amperes. Kutarisa maamps ega hakuna zvakunobatsira, unofanira kuona hukama hwacho hune simba. 100Ah bhatiri pa100A i1C, zvichinzi rinozara muawa imwe chete. Pa50A ndiyo 0.5C, maawa maviri. Sero re18650 rakapihwa 2600mAh, 0.5C zvinoreva 1.3A. C-reti inzira yakajairwa neindasitiri yekuenzanisa mabhatiri akakura zvakasiyana pachiyero chakaenzana.
Mazhinji mabhatiri e-lithium anoita zvakanaka pa 0.5C yekushandisa zuva nezuva. Isu tanga tichigadzira mabhatiri eforklift kwenguva yakakwana kuti tione akawanda mapaketi akaurayiwa ne1C kuchaja. Kwete kuti 1C haigone kushanda, kwenguva pfupi zvakanaka, asi mushure memazana mana kana mazana mashanu mutsauko unoratidza. Iwo 0.5C mapaketi achiri kushanda akasimba, iwo 1C ayo atove kudonhedza huwandu. Iwe unogona kutsanangura iyo chemistry zvese zvaunoda, vanhu havazvitende kusvika vaona iyo data kubva kune yavo ngarava.
Sei izvi zvichiitika? Lithium ions inoda kupindirana muzvikamu zvegraphite pane anode kana ichichaja. Parizvino yakakwira zvakanyanya, maion haagone kusimuka nekukasira kuti apinde mukati, anotutira pamusoro sesimbi lithium panzvimbo. Metallic lithium inokura kuita dendrites, inopinza kuburikidza nemuparadzi, yemukati pfupi dunhu, inopisa inomhanya. Zviitiko zvefekitori yebhatiri zvinogadzira nhau mwedzi mishoma yese ikozvino. Zvakawanda zvinokonzeresa kazhinji, asi nyaya dzekuchaja dzinoratidza mumudzi wechikonzero chekuongorora kazhinji pane vanogadzira vanoda kubvuma.
Lithium bhatiri kuchaja ine matanho matatu.
Wese mubhizinesi anoziva izvi asi havasi vese vanoteerera kune vese vatatu.
Pre{0}kuchaja
Voltage iri pazasi 3V, haugone kuirova izere ikozvino. Anode zvinhu dhizaini inogadzika mushure mekuyerera kwakadzika, kumanikidza ikozvino mune inokonzeresa kukuvara kusingagadzirike. Pre-charge stage inoshandisa 10% yemazuva ese, zvishoma nezvishoma inodzosa voltage. Pamwe 0.05C kusvika voltage yadzoka pamusoro pechikumbaridzo. Machaja mazhinji akachipa anosvetuka izvi zvachose. Bhatiri rinogara nguva yechando mudura risingadziyirwe, voltage inodonha kusvika pa2{{10}point-something, spring inouya uye mumwe munhu anoibairira pakarepo. Mwedzi mitanhatu gare gare matambudziko anotanga kuoneka. Isu tinoona iyi pateni gore rega rega kubva kune vatengi vekuchamhembe. Kukurukurirana kumwe chete, mhedzisiro yakafanana.
Constant Current
Constant current stage inoita inorema kusimudza. Ikozvino inogara yakagadzikana apo voltage inokwira, 0.5C inokusvitsa kusvika pa80% mukati memaawa maviri. Apa ndipo panopinda simba rakawanda. Hazvina zvakawanda zvekutsanangura nezve chikamu ichi, chinoshanda nenzira yaungatarisira.
Constant Voltage
Constant voltage stage ndiyo inofarira vanhu kusvetuka. Mushure mekunge voltage yarova sirin'i-4.2V pasero yeternary chemistries seNMC, 3.65V yeLFP-ikozvino inofanira kupeta yega. Voltage inobata zvakatsiga, madonhwe emazuva ano sezvo sero rinosvika rakazara, kupera kunosvika 0.01C. Kune iyo 2600mAh 18650 zvinoreva nezve 26mA kumagumo. Danho iri rinotora inenge awa. Paunenge uchiona wachi uye uchida forklift kudzoka pasi, chikamu ichi chinodimburwa. Mhedzisiro ndeye 10-15% undercharged kana kuti urikuremedza cathode uchiedza kumanikidzira more capacity in. Hazvina kunaka asi vanhu vanozviita zvakadaro.
Tembiricha Factor
Tembiricha inochinja zvinhu. Cold electrolyte is viscous, maion haafambi zvakanaka. Same 0.5C inoshanda zvakanaka pakamuri tembiricha inogona kukonzera lithium plating pazasi kutonhora. Kuchengetera kutonhora uye maapplication eimba yekuchengetera mufiriji anoda mabhatiri ane masisitimu ekudziisa akavakirwa mukati. Dziisai maseru kusvika pa5 dhigirii usati wabvuma kuchaja ikozvino. Vatengi vanofunga kuti kudziyisa imari isingakodzeri kusvika mabhatiri afa nekukurumidza. Vanobva vauya vachibvunza kuti sei pasina akavayambira. Takadaro tichivayambira. Iyo spec sheet inoti inoshanda tembiricha renji nekuda kwechikonzero.
LFP inobata kushungurudzwa zvirinani pane ternary, chikamu chechikonzero nei ichitonga mukubata zvinhu izvozvi. Mamwe maseru akatemerwa 15C kuchaja. Kugona kuzvibata hazvirevi kuti unofanira kuzviita. Takamhanya bvunzo dzekuenzanisa, 1C vs 0.5C yekuchaja kwenguva refu, makore maviri akaenzana bhasikoro. Capacity musiyano yaive 8-12% zvichienderana nekuti tembiricha yaidzorwa zvakanaka sei. Haisi njodzi asi ndiyo mari chaiyo kana uchitarisa mari yekutsiva ngarava.
Operational Hazard
Imwe nyaya inogara ichiuya ndeye ma charger matching. Iyo 0.5C charger yakavakirwa 200Ah zvinobuda 100A. Chinjana mune 100Ah yekutsiva bhatiri uye kamwe kamwe iwe wave pa1C kunyangwe waida izvozvo kana kwete. Zvinoitika nguva dzese panguva yekukwidziridzwa kwemidziyo uye kutsiva bhatiri. Hapana anotarisa kuti charger ichiri yakakodzera here paki itsva. Bhatiri rinoshanda zvakanaka kusvika risisashande.
Pane chirevo mubhizinesi reforklift bhatiri, mutengo webhatiri i30% yerori yese. OSHA ine mitemo yakananga yekuchaja nzvimbo, 1910.178, zvinodiwa zvehydrogen ventilation, eyewash stations, acid spill kubata. Lead{{4}nguva yeasidhi iyi yaisungirwa nekuti kuungana kwegasi rehydrogen panguva yekuchaja rinoputika. Lithium era dambudziko rehydrogen rakaenda asi njodzi yekutiza yekupisa yakangochinja chimiro. Dambudziko rakasiyana, richiri kuda kutariswa.
Kuchaja ikozvino ingori nhamba iri pa spec sheet. Kumashure kwayo inguva yakareba sei bhatiri rako uye kana chimwe chinhu chakashata zvisati zvaita. Wana sarudzo chaiyo paunenge uchitsanangura zvishandiso, zvakachipa pane kutsiva mabhatiri mushure mekunge matambudziko aoneka.
