Vatsvagiri kubva kuGerman Institute of Technology Karlsruhe (KIT) yakabudisa imwe nyaya muNature Communications iyo yakatsanangura nzira ye cathode degradation mu-high-energy lithium-ion mabhatiri. Tsvagiridzo yakaitwa sechikamu chekuvandudzwa kwemabhatiri nekuwedzera kugona uye kugona. Pasina kunzwisisa kwakarurama kwemaitiro ekugadzirisa cathode, hazvibviri kubudirira kuwedzera huwandu hwemabhatiri nepamusoro-soro, izvo zvinodiwa pakugadzirwa kwemotokari dzemagetsi. Masayendisiti ane chivimbo chokuti ruzivo rwakawanikwa ruchabvumira kukwanisa kwemabhatiri e-lithium-ion kuwedzera ne30%.
High performance mabhatiri emotokari uye mamwe maapplication anoda akasiyana cathode chimiro. Mumabhatiri emazuva ano e-lithium-ion, iyo cathode ine multilayer chimiro che oxides ine mareshiyo akasiyana e nickel, manganese uye cobalt. High-energy mabhatiri anoda manganese-enriched cathodes ane yakawandisa lithium, iyo inowedzera kukwanisa kuchengetedza simba pane unit unit / mass ye cathode material. Asi zvinhu zvakadaro zvakakurumidza kuparara.
Munguva yekushanda kwakajairika, kana cathode inopfumiswa kana kurasikirwa ne lithium ions, iyo yakakwira-energy cathode zvinhu inoparadzwa. Mushure meimwe nguva, iyo yakaturikidzana oxide inoshanduka kuita crystalline chimiro chine zvisingafadzi zvakanyanya electrochemical zvimiro. Izvi zvinoitika kare mumatanho ekutanga ekushanda kwebhatiri, izvo zvinotungamira kukurumidza kuderera muvhareji yekuchaja uye kuburitsa kukosha.
Muchikamu chekuedza, masayendisiti eGermany akawana kuti kuora mwoyo hakuitiki zvakananga, asi nenzira isina kunanga kuburikidza nekugadzirwa kwekuoma-ku-kutsanangura maitiro nekugadzirwa kweiyo yakasimba lithium-ine munyu. Mukuwedzera, okisijeni inoratidzika kuita basa rinokosha mukuita. Vatsvakurudzi vakakwanisawo kutora mhedziso itsva pamusoro pemakemikari maitiro mumabhatiri e-lithium-ion angave asingatungamiri mukuparara kwecathode. Vachishandisa mhedzisiro yakawanikwa, masayendisiti anotarisira kuderedza kuparara kwecathode uye pakupedzisira kugadzira mhando nyowani yebhatiri ine huwandu hwakawedzerwa.
Source: 3dnews.ru