Mokhoa oa ho ntlafatsa polokeho ea libeteri tsa lithium

Molemo oa likoloi tse ncha tse nang le matla ke hore li na le carbon e tlaase le tikoloho ho feta likoloi tse nang le peterole. E sebelisa mafura a koloi a sa tloaelehang e le mohloli oa matla, joalo ka libeteri tsa lithium, mafura a hydrogen, joalo-joalo Tšebeliso ea betri ea lithium-ion e boetse e pharaletseng haholo, ntle le likoloi tse ncha tsa matla, liselefouno, li-laptops, li-tablet tsa PC, matla a mohala, libaesekele tsa motlakase. , lisebelisoa tsa motlakase, joalo-joalo.

Leha ho le joalo, polokeho ea libeteri tsa lithium-ion ha ea lokela ho nyenyefatsoa. Likotsi tse 'maloa li bontša hore ha batho ba qosoa ka mokhoa o sa lokelang, kapa mocheso oa tikoloho o phahame haholo, ho bonolo haholo ho etsa hore betri ea lithium-ion e chese ka tšohanyetso, ho phatloha, e leng ntlha e kholo ka ho fetisisa ea bohloko ho nts'etsopele ea libeteri tsa lithium-ion.

Le hoja thepa ea betri ea lithium ka boeona e etsa qeto ea hore "e tukang le ho phatloha", empa ho ke ke ha khoneha ka ho feletseng ho fokotsa kotsi le polokeho. Ka tsoelo-pele e tsoelang pele ea theknoloji ea betri, lik'hamphani tsa liselefouno le lik'hamphani tse ncha tsa likoloi tsa matla, ka mokhoa o utloahalang oa tsamaiso ea betri le tsamaiso ea mocheso, betri e tla khona ho etsa bonnete ba hore e sireletsehile, 'me e ke ke ea phatloha kapa ketsahalo e tukang ka tšohanyetso.

1. Ntlafatsa polokeho ea electrolyte

Ho na le reactivity e phahameng pakeng tsa electrolyte le li-electrode tse ntle le tse mpe, haholo-holo mocheso o phahameng. Ho ntlafatsa polokeho ea libeteri, ho ntlafatsa polokeho ea electrolyte ke e 'ngoe ea mekhoa e sebetsang haholoanyane. Ka ho eketsa lisebelisoa tse sebetsang, ho sebelisa letsoai le lecha la lithium le ho sebelisa li-solvents tse ncha, likotsi tsa polokeho ea electrolyte li ka rarolloa ka katleho.

Ho ea ka mesebetsi e fapaneng ea li-additives, li ka aroloa ka mekhahlelo e latelang: li-additives tsa ts'ireletso ea tšireletso, li-additives tse etsang filimi, li-additives tsa tšireletso ea cathode, li-additives tsa lithium letsoai, li-additives tsa lithium precipitation, li-additives tse thibelang ho bola, li-additives tse matlafatsang metsi. , joalo-joalo.

2. Ntlafatsa tšireletso ea lisebelisoa tsa electrode

Lithium iron phosphate le li-composite tsa ternary li nkoa e le lisebelisoa tsa "cathode" tse theko e tlaase, tse nang le monyetla oa ho sebelisoa haholo indastering ea likoloi tsa motlakase. Bakeng sa thepa ea cathode, mokhoa o tloaelehileng oa ho ntlafatsa ts'ireletso ea eona ke phetoho ea ho roala, joalo ka li-oxide tsa tšepe holim'a lisebelisoa tsa cathode, li ka thibela ho kopana ka ho toba pakeng tsa thepa ea cathode le electrolyte, ho thibela phetoho ea likarolo tsa cathode, ho ntlafatsa sebopeho sa eona. botsitso, fokotsa pherekano ea cations ka lethekeng, e le ho fokotsa lehlakoreng karabelo tlhahiso ea mocheso.

Lintho tse mpe tsa electrode, kaha bokaholimo ba eona hangata ke karolo ea betri ea lithium-ion e ka hlaseloang haholo ke ho bola ha thermochemical le exotherm, ho ntlafatsa botsitso ba mocheso oa filimi ea SEI ke mokhoa o ka sehloohong oa ho ntlafatsa polokeho ea lisebelisoa tse mpe tsa elektrode. Ho tsitsisa ha mocheso oa lisebelisoa tsa anode ho ka ntlafatsoa ka ho fokola ha oxidation, tšepe le tšepe ea oxide deposition, polymer kapa carbon cladding.

3. Ntlafatsa moralo oa ts'ireletso ea betri

Ntle le ho ntlafatsa polokeho ea lisebelisoa tsa betri, mehato e mengata ea ts'ireletso ea ts'ireletso e sebelisoang libeteri tsa lithium-ion tsa khoebo, joalo ka ho beha li-valve tsa ts'ireletso ea betri, li-fuse tse qhibilihang ka har'a mocheso, ho kopanya likarolo tse nang le li-coefficients tse ntle tsa mocheso ka letoto, ho sebelisa li-diaphragm tse tiisitsoeng ka thermally, ho kenya ts'ireletso e khethehileng. li-circuits, le litsamaiso tse inehetseng tsa taolo ea betri, le tsona ke mekhoa ea ho ntlafatsa polokeho.

Nako ea poso: Feb-14-2023