Kuipa kwe lithium iron phosphate bhatiri
Kunyangwe chinhu chine mukana wekushandisa uye kusimudzira, mukuwedzera kune zvakanakira, kiyi ndechekuti chinhu chacho chine hurema hwakakosha.
Parizvino, lithium iron phosphate inosarudzwa zvakanyanya se cathode zvinhu zvesimba lithium-ion mabhatiri muChina.Vanoongorora misika kubva kuhurumende, masangano ekutsvagisa sainzi, mabhizinesi uye kunyangwe makambani ekuchengetedza vane tarisiro pamusoro pechinhu ichi uye vanochitora senzira yekuvandudza yemagetsi lithium-ion mabhatiri.Zvinoenderana nekuongorora kwezvikonzero, pane zvakanyanya zvinotevera mapoinzi maviri: Chekutanga, nekuda kwesimba rekutsvaga nekusimudzira kutungamira muUnited States, Valence uye makambani eA123 muUnited States akatanga kushandisa lithium iron phosphate sechinhu checathode. ye lithium ion mabhatiri.Kechipiri, lithium manganate zvinhu zvine yakanaka yakakwira tembiricha kubhasikoro uye mashandiro ekuchengetedza ayo anogona kushandiswa kune simba lithium-ion mabhatiri haana kugadzirwa muChina.Zvisinei, lithium iron phosphate inewo hurema hunokosha husingagoni kuregererwa, hunogona kupfupikiswa sezvinotevera:
1. Mune sintering process ye lithium iron phosphate kugadzirira, zvinokwanisika kuti iron oxide inogona kuderedzwa kuita iron iri nyore pasi pepamusoro tembiricha inoderedza mhepo.Iron, iyo yakanyanya taboo chinhu mumabhatiri, inogona kukonzera micro short circuit yemabhatiri.Ichi ndicho chikonzero chikuru nei Japan isina kushandisa chinhu ichi se cathode zvinhu zvesimba remhando lithium ion mabhatiri.
2. Lithium iron phosphate ine zvimwe zvinokanganisa kushanda, zvakadai sepasi tamping density uye compaction density, zvichiita kuti simba rakaderera reti lithium ion bhatiri.Kuderera kwekushisa kwekushanda kwakashata, kunyange kana nano yayo - uye carbon coating haigadziri dambudziko iri.Apo Dr. Don Hillebrand, mutungamiriri weEnergy Storage System Center yeArgonne National Laboratory, akataura nezvekushanda kwakadzika kwekushisa kwe lithium iron phosphate bateri, akaitsanangura seinotyisa.Mhedzisiro yavo yebvunzo pa lithium iron phosphate bhatiri yakaratidza kuti lithium iron phosphate bhatiri yaisakwanisa kutyaira mota dzemagetsi pazasi tembiricha (pazasi 0 ℃).Kunyangwe vamwe vagadziri vachiti huwandu hwekuchengetedza huwandu hwelithium iron phosphate bhatiri yakanaka pane yakaderera tembiricha, iri pasi pemamiriro ekushomeka kwezvino uye kuderera kwekubvisa-kubvisa voltage.Muchiitiko ichi, michina haigoni kutangwa zvachose.
3. Mutengo wekugadzirira wezvigadzirwa uye mari yekugadzira mabhatiri yakakwirira, zvibereko zvemabhatiri zvakaderera, uye kuwirirana kwakashata.Kunyangwe iyo electrochemical zvimiro zvezvinhu zvakagadziridzwa nenanocrystallization uye kabhoni coating yelithium iron phosphate, mamwe matambudziko akaunzwa, sekudzikiswa kwesimba remagetsi, kuvandudzwa kwemutengo wekubatanidza, kusasimba kwekugadzirisa electrode uye kuomarara kwezvakatipoteredza. zvinodiwa.Kunyangwe iyo makemikari zvinhu Li, Fe uye P mu lithium iron phosphate yakapfuma kwazvo uye mutengo wakaderera, mutengo weyakagadzirirwa lithium iron phosphate chigadzirwa hausi kuderera.Kunyangwe mushure mekubvisa mari yekutanga yekutsvagisa uye yekuvandudza, mutengo wekuita wechinhu ichi pamwe nemutengo wepamusoro wekugadzira mabhatiri uchaita kuti mutengo wekupedzisira weyuniti yekuchengetedza simba ukwire.
4. Kusagadzikana kwechigadzirwa.Parizvino, hapana lithium iron phosphate material fekitari muChina inogona kugadzirisa dambudziko iri.Kubva pamaonero ekugadzirwa kwezvinhu, iyo synthesis reaction yelithium iron phosphate yakaoma heterogeneous reaction, inosanganisira yakasimba phosphate, iron oxide uye lithium munyu, kabhoni yakawedzera precursor uye kuderedza gasi chikamu.Mune iyi yakaoma kuita maitiro, zvakaoma kuve nechokwadi chekuenderana kwekuita.
5. Nyaya dzenjere.Parizvino, iyo yakakosha patent yelithium iron phosphate ndeyeYunivhesiti yeTexas muUnited States, nepo kabhoni yakavharwa patent inoshandisirwa neveCanada.Aya marevhizheni maviri akakosha haagone kudarikwa.Kana mari dzepatent dzakabatanidzwa mumutengo, mutengo wechigadzirwa unozowedzerwa.
Pamusoro pezvo, kubva muruzivo rweR&D nekugadzirwa kwemabhatiri e-lithium-ion, Japan ndiyo nyika yekutanga kutengesa mabhatiri e-lithium-ion, uye yagara iine musika webhatiri we-lithium-ion.Kunyangwe United States iri kutungamira mune imwe yekutanga tsvagiridzo, kusvika parizvino hapana yakakura lithium ion bhatiri inogadzira.Naizvozvo, zvine musoro kuti Japan isarudze yakagadziridzwa lithium manganate se cathode zvinhu zvesimba mhando lithium ion bhatiri.Kunyangwe muUnited States, hafu yevagadziri vanoshandisa lithium iron phosphate uye lithium manganate se cathode zvinhu zvesimba remhando yelithium ion mabhatiri, uye hurumende yemubatanidzwa inotsigirawo tsvakiridzo nekuvandudzwa kwemaitiro maviri aya.Tichifunga nezvematambudziko ari pamusoro apa, lithium iron phosphate yakaoma kushandiswa zvakanyanya se cathode zvinhu zvesimba lithium-ion mabhatiri mumagetsi matsva emagetsi uye mamwe minda.Kana isu tikakwanisa kugadzirisa dambudziko rekushomeka kwepamusoro-tembiricha bhasikoro uye kuchengetedza kuita kwe lithium manganenate, ichava nekugona kukuru mukushandiswa kwesimba mabhatiri e-lithium-ion ane zvakanakira zvemutengo wakaderera uye chiyero chepamusoro chekuita.
Nguva yekutumira: Oct-19-2022