Li-betri tsa Li-ion li batla li le hohle.Li sebelisoa lits'ebetsong tsa mehala le lilaptop ho ea ho likoloi tse nyalisitsoeng le tsa motlakase.Libetri tsa Lithium-ion le tsona li tsebahala haholo lits'ebetsong tse kholo joalo ka Uninterruptible Power Supplies (UPSs) le stationary Battery Energy Storage Systems (BESSs).
Betri ke sesebelisoa se nang le sele e le 'ngoe kapa tse ngata tsa electrochemical tse hokelang kantle bakeng sa ho matlafatsa lisebelisoa tsa motlakase.Ha betri e fana ka matla a motlakase, terminal ea eona e ntle ke cathode, 'me terminal ea eona e mpe ke anode.The terminal e tšoailoeng negative ke mohloli oa lielektrone tse tla phalla ka har'a potoloho ea motlakase e kantle ho terminal e ntle.
Ha betri e hokahane le mojaro oa motlakase o kantle, phetoho ea redox (fokotso-oxidation) e fetola li-reactants tse matla ho lihlahisoa tse tlase tsa matla, 'me phapang ea matla a mahala e isoa potolohong ea kantle e le matla a motlakase.Ho ea ka histori lentsoe "betri" ka ho khetheha le ne le bolela sesebelisoa se entsoeng ka lisele tse ngata;Leha ho le joalo, tšebeliso e fetohile ho kenyelletsa lisebelisoa tse entsoeng ka sele e le 'ngoe.
Betri ea lithium-ion e sebetsa joang?
Li-betri tse ngata tsa Li-ion li na le moralo o tšoanang o nang le electrode ea tšepe ea oxide positive (cathode) e koahetsoeng holim'a pokello ea hona joale ea aluminium, electrode e mpe (anode) e entsoeng ka carbon / graphite e koahetsoeng ka koporo ea hona joale ea koporo, karohano le electrolyte e entsoeng ka letsoai la lithium ka har'a motsoako oa lintho tse phelang.
Ha betri e ntse e ntša le ho fana ka motlakase, electrolyte e na le li-ion tsa lithium tse qosoang hantle ho tloha ho anode ho ea ho cathode le ka tsela e fapaneng ka karohano.Ho tsamaea ha li-ion tsa lithium ho etsa li-electrone tse sa lefelloeng ka har'a anode e etsang hore ho be le tefiso ho mokelli oa hona joale o motle.Joale motlakase o phalla ho tloha ho mokelli oa hona joale ka sesebelisoa se tsamaisoang (selefounu, k'homphieutha, joalo-joalo) ho ea ho mokelli oa hona joale o fosahetseng.Karohano e thibela ho phalla ha lielektrone ka har'a betri.
Nakong ea ho tjhaja, mohloli oa matla a kantle a motlakase (sebaka sa ho tjhaja) o sebelisa matla a fetang a motlakase (voltage e phahameng ho feta e hlahisoang ke betri, ea polarity e ts'oanang), e qobellang hore motlakase o phalle ka har'a betri ho tloha ho e ntle ho ea ho elektrode e mpe, ke hore, ka lehlakoreng le ka morao la mokelikeli o tsoang tlas'a maemo a tloaelehileng.Li-ion tsa lithium joale li falla ho tloha ho tse ntle ho ea ho electrode e mpe, moo li kenang ka har'a lisebelisoa tsa porous electrode ka mokhoa o tsejoang e le inter-calation.
Nako ea poso: Jun-26-2022