5. Ubomi bomjikelo(iyunithi: amaxesha)& Ubunzulu bokukhutshwa, i-DoD
Ubunzulu bokukhutshwa: Ibonisa ipesenti yokukhutshwa kwebhetri kumthamo olinganisiweyo webhetri. Iibhetri ze-shallow cycle akufanele zikhuphe ngaphezu kwe-25% yomthamo wazo, ngelixa iibhetri zomjikelezo onzulu zinokukhupha i-80% yomthamo wazo. Ibhetri iqala ukukhupha amandla ombane angaphezulu komda kwaye iyeke ukukhupha umda wombane osezantsi. Chaza yonke intlawulo ekhutshiweyo njenge-100%. Umgangatho webhetri 80% DOD uthetha ukukhupha i-80% yentlawulo. Umzekelo, ukuba i-SOC yokuqala yi-100% kwaye ndiyibeke kuma-20% kwaye ndiyeke, yi-80% DOD.
Ubomi bebhetri ye-lithium-ion buya kubola ngokuthe ngcembe ngokusetyenziswa kunye nokugcinwa, kwaye kuya kubonakala ngakumbi. Kusenjalo thatha iifowuni ezihlakaniphile njengomzekelo, emva kokusebenzisa ifowuni ixesha elithile, unokuziva ngokucacileyo ukuba ibhetri yefowuni "ayihlalanga", isiqalo sinokuhlawula kanye ngosuku, umva unokufuna ukubiza kabini ngosuku, nto leyo. sisimbonakaliso sokuhla okuqhubekayo kubomi bebhetri.
Ubomi bebhetri ye-Lithium-ion buhlukaniswe kwiiparamitha ezimbini: ubomi bomjikelezo kunye nobomi bekhalenda. Ubomi bomjikelo ngokuqhelekileyo bulinganiswa ngokwemijikelo, ebonisa inani lamaxesha ibhetri inokutshajwa kwaye ikhutshwe. Ngokuqinisekileyo, kukho iimeko apha, ngokubanzi kwiqondo lokushisa elifanelekileyo kunye nokufuma, kunye nentlawulo elinganisiweyo kunye nokukhutshwa ngoku kubunzulu bentlawulo kunye nokukhupha (80% DOD), bala inani lemijikelezo efunyenweyo xa amandla ebhetri ehla ukuya kwi-20% yomthamo olinganisiweyo.
Inkcazo yobomi bekhalenda yinto enzima ngakumbi, ibhetri ayinakuhlala ihlawula kwaye ikhupha, kukho ukugcinwa kunye neshelufu, kwaye ayikwazi ukuhlala kwiimeko ezifanelekileyo zokusingqongileyo, iya kuhamba kuzo zonke iintlobo zeqondo lokushisa kunye nomswakama. iimeko, kunye nezinga lokuphindaphinda lokutshaja kunye nokukhutshwa nalo litshintsha lonke ixesha, ngoko ke ubomi benkonzo obuyinyani kufuneka bufaniswe kwaye buvavanywe. Ukubeka nje, ubomi bekhalenda bubude bexesha lokuba ibhetri ifikelele ekupheleni kobomi (umzekelo, umthamo uyancipha ukuya kwi-20%) emva kwemeko ethile yokusetyenziswa phantsi kwendawo yokusetyenziswa. Ubomi bekhalenda buhambelana ngokusondeleyo neemfuno ezithile zokusetyenziswa, ezihlala zifuna ukucaciswa kweemeko ezithile zokusetyenziswa, iimeko zokusingqongileyo, amaxesha okugcina, njalo njalo.
6. NgaphakathiRukungakhathali(iyunithi: Ω)
Ukuchasa Ngaphakathi: Ibhekisela ekuchaseni kwangoku okuhamba ngebhetri xa ibhetri isebenza, ebandakanyaohmic ukumelana kwangaphakathikwayei-polarization yangaphakathi ukumelana, kunye ne-polarization ukumelana kwangaphakathi kubandakanyaelectrochemical polarization ukumelana kwangaphakathikwayei-concentration polarization ukumelana kwangaphakathi.
Uchaso lwangaphakathi lwe-Ohmiciqulethe izinto ze-electrode, i-electrolyte, ukumelana ne-diaphragm kunye nokuxhatshazwa koqhagamshelwano lwenxalenye nganye.Ukuchasana kwe-polarization yangaphakathiibhekisela ekuchaseni okubangelwa yi-polarization ngexesha lokuphendula kwe-electrochemical, kubandakanywa nokuxhatshazwa okubangelwa i-electrochemical polarization kunye ne-concentration polarization.
Iyunithi yokuchasana kwangaphakathi ngokuqhelekileyo yi-milliohm (mΩ). Iibhetri ezinokumelana okukhulu kwangaphakathi zinosetyenziso oluphezulu lwamandla angaphakathi kunye nokuveliswa kobushushu obunzulu ngexesha lokutshaja kunye nokukhupha, okuya kubangela ukuguga okukhawulezileyo kunye nexesha lokuphila lokuthotywa kweebhetri ze-lithium-ion, kwaye kwangaxeshanye kunciphise ukusetyenziswa kokutshaja kunye nokukhupha ngesantya esikhulu sokuphindaphinda. . Ngoko ke, okuncinci ukuchasana kwangaphakathi, ubomi obungcono kunye nokusebenza kokuphindaphinda kwebhetri ye-lithium-ion kuya kuba.
Ixesha lokuposa: Nov-15-2023