Yakachena uye inoshanda tekinoroji yekuchengetedza simba kwakakosha kumisikidza inovandudzwa simba remagetsi.Lithium-ion mabhatiri atove nesimba mumidziyo yemagetsi emunhu, uye vari kuvimbisa vamiriri veakavimbika grid-level kuchengetedza uye mota dzemagetsi.Nekudaro, imwe budiriro inodiwa kuvandudza mitengo yavo yekuchaja uye hupenyu hunogona kushandiswa.
Kubatsira kuvandudzwa kwemabhatiri ekuchaja akadai uye anogara kwenguva refu, masayendisiti anofanirwa kukwanisa kunzwisisa maitiro anoitika mukati mebhatiri rinoshanda, kuti vaone zvipimo mukushanda kwebhatiri.Parizvino, kuona mabhatiri ekushandisa sezvaanoshanda kunoda akaomesesa synchrotron X-ray kana electron microscopy matekiniki, ayo anogona kuve akaoma uye anodhura, uye kazhinji haagone mufananidzo nekukasira kubata shanduko dzinokurumidza kuitika mukukurumidza-kuchaja maelectrode zvinhu.Nekuda kweizvozvo, iyo ion dynamics pakureba-chiyero chega chega chega particles uye pakushambadzira-inoenderana-inoenderana nekuchaja mitengo inoramba isingatarisirwi.
Vatsvagiri vepaYunivhesiti yeCambridge vakakunda dambudziko iri nekugadzira yakaderera-yakavakirwa lab-based optical microscopy nzira yekudzidza mabhatiri e-lithium-ion.Vakaongorora zvimedu zveNb14W3O44, iri pakati pezvinokurumidza kuchaja anode zvinhu kusvika-zvino.Chiedza chinooneka chinotumirwa mubhatiri kuburikidza nehwindo duku regirazi, zvichiita kuti vatsvakurudzi vatarise maitiro ane simba mukati mezvikamu zvinoshanda, munguva chaiyo, pasi pemamiriro ezvinhu chaiwo asina kuenzana.Izvi zvakaratidza kumberi-kunge Lithium-concentration gradients ichifamba nepakati pezvimedu zvinoshanda, zvichikonzera kushushikana kwemukati izvo zvakaita kuti zvimwe zvimedu zvityoke.Particle fracture idambudziko remabhatiri, sezvo inogona kutungamirira kumagetsi kubviswa kwezvidimbu, kuderedza simba rekuchengetedza rebhatiri."Zviitiko zvinongoitika zvakadaro zvine zvazvinokonzeresa bhatiri, asi hazvingamboonekwa munguva chaiyo zvisati zvaitika," anodaro munyori-mumwe Dr Christoph Schnedermann, weCambridge's Cavendish Laboratory.
Kugona kwepamusoro-soro kweiyo optical microscopy tekinoroji yakagonesa vaongorori kuongorora huwandu hukuru hwezvimedu, zvichiratidza kuti kutsemuka kwechidimbu kunonyanya kuwanda nemazinga akakwira edelithiation uye muzvikamu zvakareba."Izvi zvakawanikwa zvinopa misimboti yedhizaini yakananga kudzikisa kuputsika uye kupera simba mukirasi ino yezvinhu" anodaro munyori wekutanga Alice Merryweather, mumiriri wePhD kuCambridge's Cavendish Laboratory uye Chemistry department.
Kufambira mberi, zvakakosha zvakakosha zvemaitiro - kusanganisira kukurumidza kutora data, single-particle resolution, uye yakakwirira throughput kugona - zvinogonesa kumwe kuongorora kwezvinoitika kana mabhatiri atadza uye maitiro ekudzivirira.Iyo tekinoroji inogona kushandiswa kudzidza chero chero mhando yezvinhu zvebhatiri, zvichiita kuti ive chidimbu chakakosha chepuzzle mukugadzirwa kwemabhatiri echizvarwa chinotevera.
Nguva yekutumira: Sep-17-2022