Huwandu hwemagetsi bhatiri rinogona kuburitsa mune mamwe mamiriro ekuyerera kunonzi kugona kwebhatiri, inotaridzwa nechiratidzo C. Chikamu chayo chinowanzo kuratidzwa seA·h kana mA·h.
1. Theoretical Capacity (C0)
Theoretical capacity ihuwandu hwemagetsi hunogona kupihwa nebhatiri tichifunga kuti zvese zvinoshandiswa zvinotora chikamu mukuyerera-kuumba maitiro. Theoretical kugona inogona kuverengerwa nemazvo uchishandisa huwandu hwezvinhu zvinoshanda zvinoshandiswa mubhatiri reaction equation, zvichibva pane electrochemical yakaenzana yezvinhu zvinoshanda zvakaverengerwa maererano nemutemo waFaraday.
Mutemo waFaraday unoti kana simba remagetsi richipfuura nemushonga we electrolyte, huwandu hwezvinhu zvinosangana nekemikari pama electrode hunoenderana zvakananga nehuwandu hwemagetsi anopfuura. Masvomhu, izvi zvinogona kuratidzwa se...
Mutemo waFaraday unoti kana simba remagetsi richipfuura nemushonga we electrolyte, huwandu hwezvinhu zviri kuitika pamakemikari e electrode hunoenderana zvakananga nehuwandu hwemagetsi anopfuura. Masvomhu, izvi zvinoratidzwa se:
Ipo Q chiyero chemagetsi anopfuura ne electrode reaction (A · h);
m ndiko kuwanda kwechinhu chinoshanda chichiita (g);
M ndiyo molar mass yechinhu chinoshanda (g/mol);
F inguva yeFaraday, ingangoita 96500 C/mol kana 26.8 A·h/mol.
Equation (2-6) inogonawo kunzwisiswa sehuwandu hwemagetsi Q akabudiswa mushure mekuita kwakakwana kwechinhu chinoshanda chehuwandu m. Huwandu hwemagetsi Q ndiyo theoretical capacity (C₀) yechinhu chinoshanda pa electrode, inomiririra huwandu hwemagetsi anoburitswa kana chinhu chinoshanda chemasm m chinonyatso tora chikamu mukuita.
Naizvozvo, equation (2-6) inogonawo kunyorwa se:
Muchidimbu, K inomiririra electrochemical yakaenzana nechinhu chinoshanda, K=M / 26.8 [g/(A·h)], iyo inoreva kuwanda kwezvinhu zvinoshanda zvinodikanwa kuwana 1 A·h yekuchaja. Formula (2-7) ndiyo fomula yekuverenga iyo theoretical kugona kwe electrode inoshanda zvinhu. Iyo electrochemical yakaenzana yeanowanzo shandiswa electrode inoshanda zvinhu zvinoratidzwa muTafura 2-2. Iyo electrochemical yakaenzana inogona kushandiswa kuenzanisa iyo theoretical chaiyo kugona kwezvinhu zve electrode.
Tafura 2-2 Electrochemical Equivalents yeInowanzo shandiswa Electrode Active Materials
| Active Substance | Molar Misa/(g/mol) | Nhamba yeErekitironi Yakagadzirwa muReaction (n) | Electrochemical Equivalent [g/(A·h)] |
|---|---|---|---|
| H₂ | 2.0 | 2 | 0.037 |
| Li | 6.94 | 1 | 0.259 |
| Zn | 65.4 | 2 | 1.220 |
| Cd | 112.4 | 2 | 2.220 |
| Pb | 207.2 | 2 | 3.737 |
| MnO₂ | 85.0 | 1 | 3.167 |
| Ni(OH)₂ | 92.7 | 1 | 3.456 |
| PbO₂ | 239.2 | 2 | 4.463 |
2. Yakatemerwa Kugona (C₀)
Yakatemerwa huwandu hushoma hunofanirwa kuburitswa nebhatiri pasi pemamwe mamiriro ekubuda (sekupisa, mwero wekubuda, uye kupera kwemagetsi) sezviri kutaurwa nemitemo yenyika kana yedhipatimendi.
3. Chaiyo Capacity (C)
Panguva yekuchinja kwezvino kubuda
Muchidimbu, ini--inomiririra ikozvino kubuda, basa renguva yekubuda t;
T--inomiririra nguva kubva pakubuda kusvika pakupera simba.
Nekuda kwekupikisa kwemukati uye zvimwe zvinhu, iyo inoshanda zvinhu haigone kushandiswa zvizere; ndiko kuti, chiyero chekushandiswa kwechinhu chinoshanda chinogara chiri pasi pe 1. Nokudaro, iyo chaiyo yehutano uye yakarongerwa simba rekemikari simba rinogara rakaderera kudarika theoretical capacity. Chiyero chekushandiswa kwezvinhu zvinoshanda chinotsanangurwa se ...
Iko m ndiko kuwanda kwezvinhu zvinoshanda;
m₁ uremu hwezvinhu zvinoshanda zvinopedzwa kana simba chairo raburitswa.
Kugona chaiko kwebhatiri kwakabatana zvakanyanya neazvino kubuda. Panguva yekuyerera kwepamusoro{{1}ikozvino, electrode polarization inowedzera, mukati mekudzivirira kunowedzera, simba rekubuda rinodzika nekukurumidza, uye simba rebhatiri rinodzikira, zvoita kuti simba ridzike. Zvichakadaro, pasi pe-mwero wekuyerera kwepasi, simba rekubuda rinodzikira zvishoma nezvishoma, uye simba chairo rinoburitswa nebhatiri rinowanzokwira kupfuura huwandu hwakayerwa.
4. Kuramba Kugona
Kusara (Resiing capacity) zvinoreva kugona kushandiswa kwasara mushure mekunge bhatiri rabuda pamwero wakati wokubuda. Iko fungidziro uye kuverenga kwesimba rakasara rinokanganiswa nezvinhu zvakaita seyekuyerera uye nguva yekubuda panguva yekutanga kushandiswa kwebhatiri, pamwe nedhigirii rekuchembera kwebhatiri uye nharaunda yekushandisa, zvichiita kuti fungidziro yakatiome.
5. n-Hour Rate Capacity
n-chiyero cheawa chinoreva huwandu hwemagetsi anoburitswa nebhatiri rakachajiwa kana yadzimwa nenguva n-yeawa yekubuda kwemagetsi kusvika simba rekudzima rataurwa rasvika.
6. Kushandiswa Kugona
Usable capacity (usable capacity) zvinoreva huwandu hwemagetsi anoburitswa mubhatiri rakachajiwa pasi pemamiriro akatarwa.
