Mabatire a Li-ion ali pafupifupi kulikonse.Amagwiritsidwa ntchito pakugwiritsa ntchito mafoni am'manja ndi laputopu kupita ku magalimoto osakanizidwa ndi magetsi.Mabatire a Lithium-ion akuchulukirachulukira m'mapulogalamu akuluakulu monga Uninterruptible Power Supplies (UPSs) ndi stationary Battery Energy Storage Systems (BESSs).
Batire ndi chipangizo chokhala ndi selo limodzi kapena angapo a electrochemical okhala ndi zolumikizira zakunja zopangira zida zamagetsi.Pamene batire ikupereka mphamvu yamagetsi, malo ake abwino ndi cathode, ndipo malo ake opanda pake ndi anode.The terminal yolembedwa kuti negative ndiye gwero la ma elekitironi omwe aziyenda mozungulira magetsi akunja kupita ku terminal yabwino.
Batire ikalumikizidwa ndi katundu wamagetsi wakunja, mawonekedwe a redox (kuchepetsa-oxidation) amasintha zotulutsa mphamvu zamagetsi kuzinthu zotsika mphamvu, ndipo kusiyana kwa mphamvu yaulere kumaperekedwa kudera lakunja ngati mphamvu yamagetsi.M'mbiri mawu akuti "batire" makamaka ankatanthauza chipangizo chopangidwa ndi maselo angapo;komabe, kugwiritsidwa ntchito kwasintha kuti kuphatikizepo zida zopangidwa ndi selo imodzi.
Kodi batire ya lithiamu-ion imagwira ntchito bwanji?
Mabatire ambiri a Li-ion ali ndi mawonekedwe ofanana omwe ali ndi chitsulo chachitsulo cha oxide positive electrode (cathode) chokutidwa pa chotengera chamakono cha aluminiyamu, electrode negative (anode) yopangidwa kuchokera ku kaboni / graphite wokutidwa pa chotolera chamkuwa, cholekanitsa ndi electrolyte yopangidwa ndi lithiamu mchere mu zosungunulira organic.
Pamene batire ikutulutsa ndikupereka mphamvu yamagetsi, electrolyte imanyamula ma ion a lithiamu kuchokera ku anode kupita ku cathode ndi mosemphanitsa kudzera pa olekanitsa.Kuyenda kwa ayoni a lithiamu kumapanga ma elekitironi aulere mu anode yomwe imapangitsa kuti pakhale mtengo wokhometsa wapano.Mphamvu yamagetsi imayenda kuchokera ku chosonkhanitsa chamakono kudzera pa chipangizo chomwe chimayendetsedwa (foni yam'manja, kompyuta, ndi zina zotero) kupita ku chosonkhanitsa chamakono.Cholekanitsa chimatchinga kuyenda kwa ma elekitironi mkati mwa batire.
Panthawi yochapira, gwero lamphamvu lamagetsi lakunja (lozungulira) limagwiritsa ntchito mphamvu yochulukirapo (voltage yayikulu kuposa momwe batire imapangidwira, ya polarity yomweyi), kukakamiza magetsi kuti aziyenda mkati mwa batire kuchokera ku zabwino kupita ku electrode yoyipa, mwachitsanzo, kulowera chakumbuyo kwa madzi otuluka mumkhalidwe wabwinobwino.The lifiyamu ayoni ndiye amasamuka kuchokera zabwino kuti elekitirodi zoipa, kumene kukhala ophatikizidwa mu porous elekitirodi zakuthupi mu ndondomeko yotchedwa inter-calation.
Nthawi yotumiza: Jun-26-2022