Solid-statelow-temperature lithium mabhatiriratidza yakaderera electrochemical kushanda panguva yakaderera tembiricha.Lithium-ion bhatiri kuchaja patembiricha yakaderera inoburitsa kupisa mukuita kwekemikari kwema electrode akanaka uye asina kunaka, zvichikonzera kupisa kwemagetsi.Nekuda kwekusagadzikana kweiyo yakanaka uye yakaipa electrode pakudziya kwakadzika, zviri nyore kuita kuti electrolyte reaction ibudise mabubble emhepo uye lithium precipitation, nokudaro ichiparadza electrochemical performance.Naizvozvo, tembiricha yakaderera inzira isingadzivisiki mukukwegura kwebhatiri.
Lithium-ion bhatiri yekuchaja tembiricha yakadzikira zvakanyanya pane yakaderera tembiricha, izvo zvinogadzira kukuvadza kune yakanaka uye yakaipa electrode.Kana tembiricha yekuchaja bhatiri yakadzikira pane tembiricha yekamuri, iyo electrode yakanaka yebhatiri inopindura uye nekushisa, uye gasi uye kupisa kunogadzirwa kunoungana mugasi rinoumbwa muiyo yakanaka electrode, zvichiita kuti sero riwedzere.Kana tembiricha yakadzikira panguva yekuburitsa, mapango anova asina kugadzikana.Kuti uchengetedze basa re electrode yakaipa uye electrode yakanaka, bhatiri inofanira kubhadharwa nguva dzose, saka, iyo yakanaka electrode inoshanda zvinhu inofanira kuchengetwa mune imwe nzvimbo zvakanyanya sezvinobvira paunenge uchichaja.
Iyo bhatiri simba rinoora nekukurumidza panguva yakaderera tembiricha bhasikoro uye ine yakakosha kukanganisa hupenyu hwebhatiri.Kuderera-kupisa kubhadharisa kunotungamirira kuhuwandu hwekuchinja kwehuwandu mumagetsi akanaka uye asina kunaka, izvo zvinotungamirira pakuumbwa kwe lithium dendrites uye nokudaro zvinokanganisa kushanda kwebheteri.Kurasikirwa kwesimba nekudzikira kwesimba panguva yekuchaja/kuburitsa kutenderera zvakare chinhu chikuru chinokanganisa hupenyu hwebhatiri, uye kuparara kweLiCoSiO 2 cathode uye LiCoSiO 2 cathode pakupisa kwakanyanya kunogadzira gasi nemabhubhu pamwe neiyo yakasimba electrolyte, iyo inokanganisa hupenyu hwebhatiri.Kuita kwemaelectrodi akanaka neasina kunaka ane electrolyte patembiricha yakaderera anoburitsa mabubbles anovhiringa maelectrodes akanaka kana asina kunaka panguva yekutenderera kwebhatiri, nokudaro zvichiita kuti bhatiri riwore nekukurumidza.
Kuwedzerwa kwehupenyu hwekutenderera kunoenderana neyakaburitswa mamiriro ebhatiri uye iyo lithium ion concentration panguva yekuchaja.Yakakwira lithium ion concentration inotadzisa bhasikoro kuita kwebhatiri, nepo yakaderera lithium concentration inotadzisa bhasikoro kuita kwebhatiri.Sezvo kuchaja pane tembiricha yakaderera kuchaita kuti electrolyte iite zvechisimba, zvichikanganisa maitiro akanaka uye asina kunaka e electrode, izvo zvinokonzeresa kudyidzana pakati peiyo yakanaka uye yakaipa electrode inoshanda zvinhu izvo zvinoita kuti iyo negative electrode iite uye ibudise huwandu hukuru hwegasi uye. mvura, nokudaro kuwedzera kupisa kwebhatiri.Kana iyo lithium ion concentration yakaderera kupfuura 0.05%, hupenyu hwekutenderera hunongova 2 nguva / zuva;kana iyo yekuchaja ikozvino yebhatiri yakakwira kupfuura 0.2 A / C, iyo cycle system inogona kuchengetedza 8-10 nguva / zuva, nepo iyo lithium dendrite concentration yakaderera kupfuura 0.05%, iyo cycle system inogona kuchengetedza 6-7 nguva / zuva. .
Pakupisa kwakadzika, kurasikirwa kwemvura kuchaitika mune yakaipa electrode uye diaphragm yeLi-ion bhatiri, izvo zvinozotungamira kuderera kwekuita kutenderera uye kubhadharisa kugona kwebhatiri;iyo polarization yeyakanaka electrode zvinhu zvinokonzeresa brittle deformation yezvinhu zvisina kunaka electrode, zvichikonzera kusagadzikana kwelatisi uye chiitiko chekufambisa kwechaji;iyo evaporation, volatilization, desorption, emulsification uye kunaya kwe electrolyte kunozotungamira mukudzikira kwekuita kwebhatiri.Mumabhatiri eLFP, chinhu chinoshanda pamusoro pebhatiri chinoderera zvishoma nezvishoma sezvo nhamba yekuchaja uye kubuda kunowedzera, uye kuderedzwa kwezvinhu zvinoshanda kuchaita kuti kuderera kwebhatiri simba;panguva yekuchaja uye yekuburitsa maitiro, sezvo nhamba yekuchaja uye kubuda ichiwedzera, iyo inoshanda zvinhu pane iyo interface inoungana zvakare kuita yakasimba uye yakavimbika bhatiri chimiro, chinoita kuti bhatiri riwedzere kusimba uye rakachengeteka.
Nguva yekutumira: Nov-15-2022