Lalacewar baturi phosphate na lithium iron phosphate
Ko abu yana da yuwuwar aikace-aikacen da haɓakawa, ban da fa'idodinsa, mabuɗin shine ko kayan yana da lahani na asali.
A halin yanzu, lithium baƙin ƙarfe phosphate an zaba ko'ina a matsayin cathode abu na ikon lithium-ion baturi a kasar Sin.Manazarta kasuwa daga gwamnatoci, cibiyoyin bincike na kimiyya, kamfanoni har ma da kamfanonin tsaro suna da kyakkyawan fata game da wannan kayan kuma suna ɗaukarsa a matsayin jagorar ci gaban baturan lithium-ion.Bisa nazarin dalilan, akwai abubuwa guda biyu masu zuwa: Na farko, saboda tasirin bincike da ci gaba a Amurka, kamfanonin Valence da A123 a Amurka sun fara amfani da lithium iron phosphate a matsayin kayan cathode. na batirin lithium ion.Na biyu, kayan manganate na lithium tare da kyakkyawan hawan keke mai zafi da aikin ajiya waɗanda za a iya amfani da su don batir lithium-ion mai ƙarfi ba a shirya su a China ba.Duk da haka, lithium iron phosphate shima yana da nakasu na asali wadanda ba za a iya yin watsi da su ba, wadanda za a iya takaita su kamar haka:
1. A cikin tsarin sintering na lithium iron phosphate shirye-shiryen, yana yiwuwa a iya rage baƙin ƙarfe oxide zuwa ƙarfe mai sauƙi a ƙarƙashin yanayin rage yawan zafin jiki.Iron, mafi yawan abubuwan da aka haramta a cikin batura, na iya haifar da gajeriyar da'ira na batura.Wannan shi ne babban dalilin da ya sa Japan ba ta yi amfani da wannan abu a matsayin cathode abu na iko irin lithium ion baturi.
2. Lithium baƙin ƙarfe phosphate yana da wasu lahani na aiki, kamar ƙarancin tamping density da compaction density, yana haifar da ƙarancin ƙarfin ƙarfin batirin lithium ion.Low zazzabi yi ba shi da kyau, ko da ta nano - kuma carbon shafi ba ya warware wannan matsala.Lokacin da Dokta Don Hillebrand, darektan Cibiyar Adana Makamashi na Cibiyar Nazarin Makamashi ta Argonne National Laboratory, yayi magana game da ƙarancin zafin batirin lithium baƙin ƙarfe phosphate, ya bayyana shi a matsayin mummunan aiki.Sakamakon gwajin da suka yi akan baturin phosphate na lithium baƙin ƙarfe ya nuna cewa baturin phosphate na lithium baƙin ƙarfe ba zai iya tuka motocin lantarki a ƙananan zafin jiki (a ƙasa 0 ℃).Ko da yake wasu masana'antun sun yi iƙirarin cewa ƙarfin riƙe ƙarfin baturin lithium baƙin ƙarfe phosphate yana da kyau a ƙananan zafin jiki, yana ƙarƙashin yanayin ƙarancin fitarwa na yanzu da ƙarancin wutar lantarki.A wannan yanayin, kayan aiki ba za a iya farawa ba kwata-kwata.
3. Farashin shirye-shiryen kayan aiki da farashin masana'anta na batura suna da yawa, yawan amfanin batura yana da ƙasa, kuma daidaito ba shi da kyau.Ko da yake electrochemical Properties na kayan da aka inganta ta nanocrystalization da carbon shafi na lithium baƙin ƙarfe phosphate, wasu matsaloli kuma an kawo game da, kamar rage yawan makamashi yawa, da inganta kira kira, rashin electrode aiki yi da kuma m muhalli. bukatun.Kodayake abubuwan sinadarai Li, Fe da P a cikin lithium iron phosphate suna da wadata sosai kuma farashin yana da ƙasa, farashin kayan aikin phosphate ɗin da aka shirya ba shi da ƙasa.Ko da bayan cire farkon bincike da ƙimar haɓakawa, farashin aiwatar da wannan kayan tare da mafi girman farashin shirya batura zai sa farashin ƙarshe na ajiyar makamashin naúrar ya fi girma.
4. Rashin daidaito samfurin.A halin yanzu, babu wata masana'anta ta lithium iron phosphate a kasar Sin da za ta iya magance wannan matsala.Daga hangen nesa na shirye-shiryen kayan aiki, haɓakar halayen lithium baƙin ƙarfe phosphate shine hadaddun halayen halayen, gami da m phosphate, baƙin ƙarfe oxide da gishiri lithium, ƙarar carbon da ke rage lokacin gas.A cikin wannan hadadden tsarin amsawa, yana da wuya a tabbatar da daidaiton halayen.
5. Abubuwan da suka shafi dukiya.A halin yanzu, ainihin haƙƙin mallaka na lithium iron phosphate mallakin Jami'ar Texas ne a Amurka, yayin da ƴan ƙasar Kanada ke neman takardar shaidar mallakar carbon.Ba za a iya ƙetare waɗannan haƙƙoƙin asali guda biyu ba.Idan an haɗa haƙƙin mallaka a cikin kuɗin, farashin samfurin zai ƙara ƙaruwa.
Bugu da kari, daga kwarewar R&D da samar da batirin lithium-ion, Japan ita ce kasa ta farko da ta fara sayar da batirin lithium-ion, kuma ta mamaye kasuwar batirin lithium-ion mai tsayi.Duk da cewa Amurka tana kan gaba a wasu bincike na asali, ya zuwa yanzu babu wani babban mai kera batirin lithium ion.Don haka, ya fi dacewa Japan ta zaɓi manganate lithium da aka gyara azaman kayan cathode na baturin lithium ion nau'in wuta.Ko a Amurka, rabin masana'antun suna amfani da lithium iron phosphate da lithium manganate a matsayin kayan aikin cathode na batir lithium ion nau'in wutar lantarki, kuma gwamnatin tarayya tana tallafawa bincike da haɓaka waɗannan tsarin guda biyu.Bisa la'akari da matsalolin da ke sama, lithium iron phosphate yana da wuya a yi amfani da shi sosai a matsayin kayan aikin cathode na batir lithium-ion mai ƙarfi a cikin sababbin motocin makamashi da sauran fannoni.Idan za mu iya magance matsalar hawan keke mai zafi mara kyau da aikin ajiya na manganate na lithium, zai sami babban tasiri a aikace-aikacen batir lithium-ion mai ƙarfi tare da fa'idodin ƙarancin farashi da babban aiki.
Lokacin aikawa: Oktoba-19-2022