Ndedzipi nzira dzandinogona kuvandudza kuchengetedzwa kwebhatiri?

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Fournisseur de centrales électriques portables

1. Shandisa yakachengeteka lithium bhatiri electrolyte parizvino lithium bhatiri electrolyte uchishandisa carbonate sechinhu chinonyungudutsa, umo iyo linear carbonate inogona kuvandudza kuchaji uye kuburitsa simba rebhatiri, asi yavo flash point yakaderera, pakadzika tembiricha Ichapenya, uye fluoro solvent kazhinji ine yakakwirira flash point kana isina flash, saka fluoro solvent inoshandiswa kudzvanya kupisa kwe electrolyte. Parizvino zvakadzidzwa fluoride solvents zvinosanganisira fluoroate uye fluoroethyl ether.

Flame retardant electrolyte ielectrolyte inoshanda iyo murazvo unodzoreredza basa remaelectrolyte akadaro anowanzo kuwanikwa nekuwedzera murazvo unodzoreredza chekuwedzera mune yakajairika electrolyte. Flame-retardant electrolyte parizvino iri kugadzirisa zvakanyanya hupfumi uye hunoshanda matanho ekuti lithium bhatiri chengetedzo, kunyanya zvichienderana neindasitiri. Kushandisa yakasimba electrolytes, panzvimbo ye organic fluid electrolytes, zvinobudirira kuvandudza kuchengetedzwa kwe lithium mabhatiri.

Maelectrolyte akasimba anosanganisira polymer solid electrolytes uye inorganic solid solid electrolytes. Iyo polymer electrolyte, kunyanya gel-mhando yepolymer electrolyte, yakagadzirwa zvakanyanya mukutengesa lithium bhatiri, asi gel-mhando yepolymer electrolyte ndiyo yakaoma-state polymer electrolyte uye mvura electrolyte compromise. Nekuda kweizvozvo, yakanyanya kushomeka mukuvandudzwa kwekuchengetedza bhatiri.

Nekuda kweiyo electrolyte yeiyo dry-state polymerization, sezvo isina kufanana negel-mhando polymer electrolyte, ine kuchengetedzwa kurinani maererano nekudonha, mhute yekumanikidza uye kupisa. Parizvino, yazvino aggregate electrolyte haizadzise zvinodiwa zvekushandiswa kwepolymer lithium bhatiri, uye kumwe kutsvagisa kunotarisirwa kushandiswa zvakanyanya mumabhatiri epolymer lithium ekuchengetedza. Phase inoenderana nepolymer electrolyte, inorganic solid electrolyte ine kuchengeteka kurinani, hapana kuvhurika, hapana kupisa, hapana dambudziko rekudonha.

Kupfuurirazve, kusimba kwemagetsi eiyo inorganic solid electrolyte yakakwira, tembiricha isingadziviriri kupisa yakakwira zvakanyanya kupfuura iyo yemvura electrolyte uye organic polymer, yakawedzera tembiricha yekushanda yebhatiri; iyo inorganic material inogadzirwa kuva firimu, iyo inowanzoita kuti iite lithium bhatiri miniaturization, uye rudzi urwu rwebhatiri ine Ultra-yakareba kuchengetedza hupenyu hunogona kuwedzera zvakanyanya nzvimbo yekushandisa yemabhatiri e lithium aripo. 2. Kuvandudza dambudziko rekuchengetedza kwe thermostability ye electrode zvinhu inokonzerwa zvakananga ne electrolyte isina kuchengetedzeka, asi kubva pamudzi wechikonzero, imhaka yekuti bhatiri pachayo haina kukwirira, kuitika kwekupisa kunze kwekutonga kunokonzerwa.

Mukuwedzera kune kugadzikana kwekushisa kwe electrolyte, kugadzikana kwekushisa kwe electrolyte zvakare chimwe chezvikonzero zvakakosha, kuitira kuti kugadzikana kwekushisa kwezvinhu zve electrode zvakare chikamu chinokosha chekuvandudza kuchengetedzwa kwebhatiri, asi electrode inotaurwa pano Kugadzikana kwekushisa kwezvinhu kunosanganisira kwete chete kugadzikana kwayo kwekushisa, asiwo kunosanganisira kugadzikana kwemagetsi emagetsi. Kazhinji, kugadzikana kwekupisa kweiyo yakaipa electrode zvinhu kunotarirwa nebasa rechimiro chechimiro uye yekuchaja yakaipa electrode. Nezve kabhoni zvinhu, spherical kabhoni zvinhu, senge yepakati kabhoni microspheres (MCMB), ine yakaderera reshiyo, yakakwira charge uye chikuva chekuburitsa, saka mamiriro ayo ekuchaja idiki, uye kugadzikana kwekupisa kunoenzaniswa.

Zvakanaka, kuchengetedzwa kwepamusoro. Iyo Li4Ti5O12 yeiyo spinel chimiro chiri nani pane kugadzikana kwechimiro chelaminated graphite, uye yekuchaja uye yekuburitsa chikuva chakanyanya kukwirira, saka kugadzikana kwekupisa kuri nani uye kuchengetedzwa kwakakwirira. Naizvozvo, MCMB kana Li4Ti5o12 inowanzo shandiswa musimba lithium-ion bhatiri rekuchengetedza zvinodiwa kutsiva yakajairika graphite seyakaipa electrode.

Mukuwedzera kune zvinyorwa pachazvo, kugadzikana kwekupisa kwezvinhu zvisina kunaka zve electrode kunonyanya kunetseka pamusoro pekugadzikana kwekushisa kweiyo yakasimba electrolyte membrane (SEI) yehutachiona hwemagetsi emagetsi emagetsi emagetsi emagetsi, ayo anowanzoshandiswa nezvinhu zvakafanana, kunyanya graphite. Funga kuti ndiyo nhanho yekutanga mukuitika kwekupisa kwekupisa. Pane nzira mbiri dzinokosha dzekuvandudza kugadzikana kwekupisa kwemufirimu weSEI: imwe ndeyekuputira pamusoro pezvinhu zvisina kunaka zve electrode, zvakadai sekuputira amorphous charcoal kana metal layer pamusoro pegraphite; imwe yacho ndeyekuwedzera firimu kugadzira additives mu electrolyte, mubhatiri Panguva yekushanda, vanogadzira SEI firimu rine kugadzikana kwezvinhu zve electrode, izvo zvinobatsira pakuwana kugadzikana kwekushisa kuri nani.