Nzira yekuchaja sei lithium-ion bhatiri

2022/04/08

Munyori: Iflowpower -Inotakurika Power Station Mutengesi

Mitengo yekuchaja kana kubuda inomiririrwa zvichienderana nekuwanda kwebhatiri. Kumhanya uku kunonzi C rate. Chiyero cheC chakaenzana nekuchaja kana kuburitsa ikozvino pasi pemamwe mamiriro, anotsanangurwa seizvi: i = m×CN apo: i = kuchaja kana kuburitsa ikozvino, am = C kuwanda kana chidimbu c = nominal kugona kukosha, AHN = nhamba yeawa (inoenderana neC).

Bhatiri rakaburitswa muchiyero che1x C rinoburitsa huwandu hwakayerwa hweiyo chiyero mukati meawa. Semuenzaniso, kana simba rezita riri 1000 mAhr, ipapo chiyero chekubuda che 1C chinoenderana nekubuda kwe1000 mA, uye chiyero cheC / 10 chinoenderana nekubuda kwe100 mA. Kazhinji simba rebhatiri remugadziri ndiN = 5, kureva, maawa mashanu ekubuda simba.

Semuenzaniso, bhatiri riri pamusoro rinogona kupa maawa mashanu enguva yekushanda apo 200 mA inoramba ichibuda. Muchiono, bhatiri rinogona kupa 1 awa yekushanda kweawa kana bhatiri raburitswa pa1000mA. Zvisinei, chaizvoizvo nekuda kwekuderera kwekushanda panguva yekubudiswa kwebheteri huru, nguva yekushanda panguva ino ichave isingasviki 1 awa.

Saka ndingakwanisa sei kuchaja bhatiri re lithium-ion? Iyo yakanyanya kufanirwa yekuchaja mabhatiri e-lithium-ion inogona kukamurwa kuita zvikamu zvina: trickle kuchaja, kugara uchichaja ikozvino, kugara uchichaja voltage uye kumisa kuchaja. Danho 1: Trickle kuchaja - trickle kuchaja kunoshandiswa kufanochaja bhatiri rakazara rakaburitswa (kudzoreredza kuchaja). Kana magetsi ebhatiri ari pasi pe3V, kuchaja bhatiri kutanga uchishandisa inogara iripo ye0.

1c. Danho rechipiri: Kugara kuri kuchaja - Kana simba rebhatiri rakwira kusvika padanho rekuchaja, vandudza chaji yekuchaja inogara iripo. Kugara kuri kuchaja ikozvino pakati pe0.

2c kusvika 1.0c. Ikozvino pakugara ichichaja haidi kuti ive chaiyoiyo, uye yenguva dzose inongogara iripo inogona zvakare.

Mumutsara wechaja dhizaini, yazvino inowanzo wedzera nekukwira kwebhatiri voltage kudzikisa matambudziko ekupisa kupisa pane transistor yekufambisa. Iyo inogara ichichaja yakakura kupfuura 1C haipfupise iyo yese yekuchaja kutenderera nguva, saka tsika iyi haipo. Paunenge uchichaja pane yakakwira ikozvino, bhatiri voltage inokwira nekukurumidza nekuda kwekuwandisa kweiyo electrode reaction uye voltage pane yemukati impedance yebhatiri.

Iyo inogara iripo yekuchaja chikamu ichapfupikiswa, asi nekuda kweinotevera inogara ichimanikidza yekuchaja chikamu, iyo yakazara yekuchaja kutenderera nguva haizopfupiki. Phase 3: Constant voltage kucharging - Kana bhatiri remagetsi richikwira kusvika pa4.2V, iyo inongogara ichichaja inopera uye inotanga nhanho yekuchaja yemagetsi.

Kuti uwane kuita kwakanakisa, kushivirira kwemutongi kunofanirwa kunge kuri nani pane + 1%. Danho rechina: Kuchaja Kuguma - Kusiyana nebhatiri renickel, hazvikurudzirwe kuramba uchichaja lithium ion bhatiri. Kuenderera mberi kwekuchaja kunogona kukonzera simbi lithium electroplating mhedzisiro.

Izvi zvinoita kuti bhatiri risagadzikane uye zvinogona kuguma nekukasika kuparara. Kune maviri akajairwa ekumisa kuchaja nzira: iyo shoma yekuchaja ikozvino inoshandiswa kuona kana kushandisa timer (kana musanganiswa wezvose). Iyo yakaderera yazvino nzira inotarisisa iyo yekuchaja ikozvino mune inogara ichimanikidza yekuchaja nhanho, uye inomisa kuchaja pamwero wechaji ikozvino inoderera kusvika ku0.

02c kusvika 0.07c. Yechipiri nzira inotanga pakutanga kweiyo inogara voltage yekuchaja chikamu, uye nzira yekuchaja inogumiswa mushure memaawa maviri ekuchaja.

Iyo yepamusoro-nhanho yekuchaja nzira inopedzisa kuchaja kwebhatiri rekuburitsa rakazara kwemaawa 2.5 kusvika matatu. Machaja epamberi anoshandisawo mamwe matanho ekuchengetedza.

Semuenzaniso, kana tembiricha yebhatiri ikadarika hwindo rataurwa (kazhinji 0 ¡ã C kusvika 45 ¡ã C), kuchaja kuchamiswa.

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