Kuti uwane kukurumidza kuchaja, bhatiri, iro rinonyanya kukosha mutakuri mukuita yekuchaja, inodawo kugadziriswa.Kukurumidza kuchaja kwebhatiri kunonyanya kuenderana nekuchaja uye kubuda kwekuwedzera kwebhatiri.Pane zvikonzero zvitatu zvakakosha zvekukanganisa kukwidziridzwa kwekuchaja: electrode zvinhu, simba rekuchaja remurwi wekuchaja uye tembiricha yebhatiri remagetsi.Kune mabhizinesi emabhatiri, simba rekuchaja rekuchaja mirwi chinhu chine chinangwa, uye zvigadzirwa zve electrode uye tembiricha yekudzora ndiko uko mafekitori ebhatiri anogona kuita shanduko.
Musimba rebhatiri link, kukurumidza kuchaja kugona kwebhatiri kunoenderana nekugona kwakawanda sekukurumidza lithium embedding kugona kweiyo negative electrode, conductivity yeelectrolyte, uye kugona kwekupisa kwebhatiri system.
Kana ichikurumidza kuchaja, lithium ion inoda kukwidziridzwa uye nekukasira kunyudzwa mukati meiyo negative electrode.Izvi zvinonetsa kugona kwema electrode asina kunaka kukurumidza kugamuchira lithium ions.Kana iyo yakaipa electrode isina high-speed lithium embedding simba, lithium precipitation kana kunyange lithium dendrite ichaitika, izvo zvinotungamirira kusingadzoreki kuderedzwa kwebhatiri simba uye kupfupisa hupenyu hwebasa.Mukuwedzera, electrolyte inodawo high conductivity uye inoda kupikisa kwekushisa kwepamusoro, kupisa kwemoto uye anti-overcharge.Nekune rimwe divi, kumhanyisa-simba nekukurumidza kuchaja kuchaunza kuwedzera kukuru kwekupisa, uye kudziya kwekutonga kwe-high-voltage bhatiri packs kwakakosha.
Kazhinji kutaura, mune yakachengeteka dhizaini yebhatiri paki, kupisa kwekudzivirirwa kwekudzivirira kunogona kuitwa nekushandisa zvinopisa zvekudzivirira zvemukati zvine kukwirira kwekushisa kwekushisa kwekuita, senge ceramic insulation pads uye mica board.Nekudaro, mukuwedzera kune passive tembiricha yekudzivirira, inoshanda yekudzivirira yekudzivirira mhinduro dzakakosha zvakare.PaShanghai Auto Show, mabhizinesi akasiyana siyana ebhatiri "akaratidza hunyanzvi hwawo" kutenderedza hunyanzvi hwezvinhu uye kutonga kwekupisa kwepakeji.
Pakutanga, tekinoroji yekuchaja yakakurumidza munguva yeNingde yakafukidza magetsi emagetsi, kukurumidza ion mhete, isotropic graphite, superconducting electrolytes, yakakwira pore diaphragms, akawanda-gradient emagetsi, nzeve dzakawanda, anode inogona kutarisa, nezvimwe.
Anotropic tekinoroji inobvumira lithium ions kuti iiswe mugirafu chiteshi 360 madhigirii kuvandudza zvakanyanya kumhanya kwekuchaja.Anode inogona kutarisa inogona kugadzirisa ikozvino yekuchaja munguva chaiyo, kuitira kuti bhatiri riwedzere kukwanisa kwayo kuchaja mukati meiyo yakachengeteka renji pasina lithium yekuongorora mativi maitiro, uye kuwana chiyero pakati pekunyanyisa kuchaja kumhanya uye kuchengeteka.Iyo ternary Kirin bhatiri inotora yakakwira nickel cathode + silicon-based negative electrode system, ine simba density inosvika 255Wh/kg, inotsigira maminetsi mashanu nekukurumidza kupisa kwekutanga uye 10min ichichaja 80%.Nekudaro, panguva yekuchaja uye yekuburitsa, vhoriyamu yekuwedzera yesilicon inogona kunge yakakwira kusvika 400%, uye iyo inoshanda iri nyore kubvisa kubva kune polar plate, zvichikonzera kukurumidza kudzikiswa kwesimba uye kugadzira isina kugadzikana SEI membrane.Naizvozvo, izvo zvinoitisa zvemunguva yeNingde zvinotora imwe-yakavakirwa kabhoni nanotubes ine dhayamita ye1.5 ~ 2 nanotubes, iyo inosunga zvakanyanya pasilicon anode uye ine yakazara conductive network.Kunyange kana silicon anode particles akawedzera muhuwandu uye otanga kuoneka akatsemuka, anogona kuramba achichengetedza hukama hwakanaka kuburikidza ne-single-walled carbon nanotubes.Mukuwedzera, iyo electrolyte yeKirin bhatiri inotora LiFSI uye inoshandisa FEC additives kugadzira lithium fluoride pane iyo isina kunaka electrode.Iyo ion radius idiki, inogona kugadzirisa makatsemuka nenguva.Panyaya yekutonga kwekupisa, Kirin Battery inosanganisa iyo yemvura kutonhora sisitimu uye yekupisa yekumisa padhi mune yakawanda-inoshanda elastic sandwich pakati pemaseru.Kuenzaniswa neyechinyakare mvura-yakatonhorera ndiro chirongwa chakaiswa pamusoro pesero, nzvimbo yekupisa yekupisa yakapetwa kana.Kutenda kune yakakura kutonhora nzvimbo, tembiricha yekudzora kushanda kwesero yakawedzera ne50%.Iyo yakamira yekutonhodza ndiro inogadzira yakachinjika hama yekuzviparadzanisa nzvimbo.Pane yekuwedzera muripo pepa + adiabatic airgel pakati longitudinal masero, izvo zvinobudirira insulates kupisa kuwana "zero thermal runaway".
Nguva yekutumira: Jun-26-2023