Nzira yakarurama yezvakanaka electrode zvinhu pre-lithiuming kurapwa kwezvinetso zve lithium?

著者：Iflowpower – Provedor de central eléctrica portátil

Iyi nyaya yelithium yave kutotaura nezvehupenyu hwekare. Isu takaita chidimbu chakareruka cheyazvino mainstream lithium resistance. Kazhinji, iyo simbi Li powder uye Li foil peni inoshandiswa kuita iyo yakaipa tonifying tekinoroji, uye zvakare parizvino Iyo nzira yakasimba inoshandiswa neiyo simba lithium-ion bhatiri mugadziri, asi nyaya dzekuchengetedza uye kudhura kwakanyanya ndiwo matambudziko ayo Metal Li lys.

Kusiyana neizvi, kureba kwakanaka kweiyo lithium process yakanaka, haichinje maitiro aripo, asi kukura kwehunyanzvi kwakadzikira, uye vagadziri vezvinhu vakakodzera vanovhura zvigadzirwa zvinoenderana. Positive electrode resolution Pamusoro pekuwedzera huwandu hudiki hwepamusoro kune yakanaka electrode system, pane nzira yekuwedzera yakawandisa Li element kubva kune yakanaka electrode material synthesis, nekudaro kuchengetedza yakawandisa LI mune yakanaka zvinhu, mukubhadharisa kwekutanga MaLI akawandisa ari mukuita anogona kuburitsa maLI maeleti anowedzera iyo yakaipa electrode kushandiswa, nekudaro kuzadzisa chinangwa chekuvandudza kwekutanga kushanda. Munzira mbiri dzekuwedzera yakawandisa lithium mune yakanaka electrode zvinhu, yekutanga ndeyekuti mune yakanaka electrode zvinhu zvakamisikidzwa neelectrochemical reaction, iyo yakanaka electrode zvinhu zvinowanzoumbwa kuita semi-bhatiri, uye iyo yakanaka electrode zvinhu zvinobatanidzwa.

Iyo yakanaka electrode zvinhu zvino inoumbwa kuita bhatiri yakazara mune general negative electrode, nekudaro inowana lithium. Iyi nzira iri nyore, uye inogonawo kudzora mari yakabatanidzwa muLi, yakakodzera kushandiswa mu laboratori, asi kukanganisa kwakanyatsojeka, kushanda kwacho kunonyanya kuoma, uye hapana kukosha kunobatsira mukugadzira chaiyo. Imwe nzira ndeyekuwedzera LI yakawandisa kuburikidza nemakemikari nzira.

Kunyangwe kuoma kwehunyanzvi kwakakwira, usawedzera mamwe maitiro mukugadzirisa bhatiri, saka zvakanyanya kukosha kukosha. Pfungwa yeyakanaka pre-lithium inobva kuGermany Giuliogabrielli et al, Giuliogabrielli akashuma kekutanga nemakemikari nzira kekutanga nemakemikari nzira, asi Giuliogabrielli inodiwa synthesize Li1 + XNi0.5Mn1.

5O4 zvinhu (200mAh / g) Iyo nzira lini0.5Mn1.5O4 zvinhu (147 mAh / g) inodzoreredzwa simba kusvika 2017 Giuliogabrielli nemamwe matarenda awana kugona kweLithium-ion bhatiri rekutanga kushanda kwe lithium-ion mabhatiri.

Mushure mekuwedzera kweLI yekutanga yekuchaja, Li1 + XNi0.5Mn1.5O4 zvinhu zvakashandurwa kuita zvakajairika Li1 + XNi0.

5MN1.5O4 zvinhu uye lini0.5Mn1.

5MN1.5O4 zvinhu nekudzora reshiyo dzakasiyana. Nyaya yacho yakasanganiswa, iyo inogona kunyatso kudzora chiyero cheLi, iyo inobhadhara zvachose iyo yakaipa electrode mukukwanisa kudzoreredzwa panguva yekutanga yekuchaja nzira, inovawo innovation uye kubudirira kweiyo yakanaka mubatsiri.

Giuliogabrielli synthesis yeLi1 + XNi0.5Mn1.5O4 zvinhu ikemikari synthesis nzira, uye mukugadzirwa kwezvinhu, peni ichangobva kuwedzerwa muhutano hwekugadzirisa, saka inonyanya kushanda, iyo inoshanda kurapa kushanda kwekutanga kweSiOx lithium-ion mabhatiri.

Nzira. Zvisinei, LI yakawandisa inowedzerwa kune zvinhu zvakanaka uye inogadzira chimiro chakagadzikana, uye iva nechokwadi chokuti kutenderera kwekuita kwezvinhu hakusi kukanganisa, Xiaobian anokoshesawo zvinyorwa zvose zvakadhindwa naGiuliogabrielli, uye haana kuona Giuliogabrielli Nzira yacho inoshandiswa mune zvimwe zvinhu (semuenzaniso, NCA uye NCM zvinhu), iyo inoratidzawo nzira kubva kune rumwe rutivi, isingakodzeri zvinhu zvose zvakanaka zve electrode. Vanchiappanaravindan anobva kuIndia anoona kuti nzira iyi inogona zvakare kushandiswa paLIVPO4F zvinhu.

Nzira iyo Vanchiappanaravindan iri nyore nyore electrochemical yakamisikidzwa maitiro, kureva kuti, LIVPO4F ndiyo yekutanga mubhatiri, inoita Li + inomisikidza LIVPO4F zvinhu. Li1.26VPO4F inoumbwa, uye ipapo bhatiri rinoparadzaniswa, Li1.

26VPO4F, uye iyo yakaipa electrode zvinhu (A-Fe2O3 yakashandiswa), kushandisa Li1.26VPO4F zvinhu kubhadhara A-Fe2O3 zvinhu mukutanga peya lithium process The non-reversible capacity (inenge 503mAh / g), inowedzera zvakanyanya simba rehuwandu hwebhatiri rose. Zvisinei, Matanho anofanira kutanga aumba hafu-sero.

Kushandiswa kwe electrochemical nzira yekuisa Li + muzvinhu zvakanaka, saka chaizvoizvo kushandiswa kunokosha mukugadzirisa chaiko, saka iyo inotevera icharamba ichitsvaga nzira yekupfuura nayo kemikari nzira yakananga synthesis lithium yakawandisa LI1.26VPO4F zvinhu, kuziva tonic yakanaka. Iyo yakanaka pre-lithium inzira yakanaka yekurapa iyo SiOx yakaipa electrode uye inowedzera simba density ye lithium ion bhatiri, asi kuisa yakawandisa LI muiyo yakanaka electrode uye kuchengetedza chimiro chakagadzikana, chinotarisana nedambudziko rakakura, saka ikozvino yakanaka pre-lithium Zvinofanira kuisa pfungwa paLIMN2O4 uye Lini0.

5Mn1.5O4 zvinhu zvakasimbiswa mumusana-resistant structure, uye yakawandisa LI element inogona kushandiswa muNCA neNCM zvinhu, uye haibatsiri kushanda kweNCA neNCM zvinhu. Ichave nehukuru hwekushandisa kukosha.

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