Tsoelo-pele ea matla a tlase a mocheso oa lithium betri nts'etsopele ea theknoloji

Ka tsoelo-pele e potlakileng ea likoloi tsa motlakase lefatšeng ka bophara, boholo ba 'maraka oa likoloi tsa motlakase bo fihlile ho $ 1 trillion ka 2020' me e tla tsoela pele ho hōla ka tekanyo e fetang 20% ​​ka selemo nakong e tlang. Ka hona, likoloi tsa motlakase e le mokhoa o ka sehloohong oa lipalangoang, litlhoko tsa ts'ebetso bakeng sa libeteri tsa matla li tla eketseha ka ho eketsehileng, 'me phello ea ho senyeha ha betri ho sebetsa ha betri ea matla libakeng tse tlaase tsa mocheso ha ea lokela ho hlokomolohuoa. Mabaka a ka sehloohong a ho senyeha ha betri libakeng tse tlaase tsa mocheso ke: Ntlha ea pele, mocheso o tlaase o ama khanyetso e nyenyane ea ka hare ea betri, sebaka sa ho phalla ha mocheso se seholo, 'me ho hanyetsa ka hare ho betri hoa eketseha. Ea bobeli, betri ka hare le ka ntle ho matla a phetiso ea tjhaja e fokola, deformation ea betri e tla etsahala ha polarization ea lehae e ke keng ea fetoloa. Ea boraro, mocheso o tlase oa motsamao oa limolek'hule tsa electrolyte o lieha ebile o thata ho hasana ka nako ha mocheso o phahama. Ka hona, ho senyeha ha betri ka mocheso o tlase ho tebile, ho baka ho senyeha ho hoholo ha betri.

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1. Boemo ba theknoloji ea betri ea mocheso o tlase

Litlhoko tsa ts'ebetso ea tekheniki le lisebelisoa tsa libeteri tsa matla tsa lithium-ion tse lokiselitsoeng mocheso o tlase li phahame. Ts'ebetso e tebileng ea ts'ebetso ea betri ea matla a lithium-ion sebakeng sa mocheso o tlase ke ka lebaka la keketseho ea ho hanyetsa ka hare, e leng se lebisang ho thatafalloang ha electrolyte le ho khutsufatsa bophelo ba potoloho ea lisele. Ka hona, lipatlisiso mabapi le thekenoloji ea betri ea mocheso o tlase o entse tsoelo-pele e itseng lilemong tsa morao tjena. Libetri tsa lithium-ion tse tloaelehileng tse tloaelehileng li na le ts'ebetso e mpe ea mocheso o phahameng, 'me ts'ebetso ea bona e ntse e sa tsitsa tlas'a maemo a tlaase a mocheso; palo e kholo ea lisele tsa mocheso o tlase, matla a tlase, le ts'ebetso e mpe ea potoloho e tlase ea mocheso; polarization e matla haholo ka mocheso o tlase ho feta mocheso o phahameng; ho eketseha ha viscosity ea electrolyte ka mocheso o tlase ho lebisa ho fokotseha ha palo ea litefello / lipotoloho tsa ho ntša; ho fokotsa tšireletso ea lisele le ho fokotsa bophelo ba betri ka mocheso o tlase; le ho fokotsa ts'ebetso e sebelisoang ka mocheso o tlase. Ho phaella moo, nako e khutšoanyane ea bophelo ba betri ka mocheso o tlaase le likotsi tsa polokeho ea lisele tsa mocheso o tlaase li hlahisitse litlhoko tse ncha bakeng sa polokeho ea libeteri tsa matla. Ka hona, nts'etsopele ea lisebelisoa tsa betri tse tsitsitseng, tse sireletsehileng, tse ka tšeptjoang le tsa nako e telele bakeng sa maemo a tlaase a mocheso ke sepheo sa lipatlisiso ka li-betri tsa lithium-ion tse tlaase. Hona joale, ho na le lisebelisoa tse 'maloa tsa betri tsa lithium-ion tse nang le mocheso o tlaase: (1) lisebelisoa tsa lithium metal anode: tšepe ea lithium e sebelisoa haholo ka likoloi tsa motlakase ka lebaka la botsitso ba lik'hemik'hale tse phahameng, motlakase o phahameng oa motlakase le tefiso e tlaase ea mocheso le ts'ebetso ea ho ntša; (2) lisebelisoa tsa carbon anode li sebelisoa haholo likoloing tsa motlakase ka lebaka la ho hanyetsa mocheso o motle, ts'ebetso ea potoloho ea mocheso o tlaase, motlakase o fokolang oa motlakase le bophelo ba potoloho ea mocheso o tlaase mocheso o tlaase; (3) lisebelisoa tsa carbon anode li sebelisoa haholo likoloing tsa motlakase ka lebaka la ho hanyetsa mocheso o motle, ts'ebetso ea potoloho e tlaase ea mocheso, motlakase o fokolang oa motlakase le bophelo ba potoloho ea mocheso o tlaase. ho; (3) li-electrolyte tsa organic li na le ts'ebetso e ntle ka mocheso o tlase; (4) li-electrolyte tsa polymer: liketane tsa limolek'hule tsa polymer li batla li le khutšoane ebile li na le kamano e phahameng; (5) lisebelisoa tsa inorganic: li-polymer tsa inorganic li na le mekhahlelo e metle ea ts'ebetso (conductivity) le tumellano e ntle lipakeng tsa ts'ebetso ea electrolyte; (6) li-oxide tsa tšepe li fokola; (7) lisebelisoa tsa inorganic: li-polymers tsa inorganic, joalo-joalo.

2, Phello ea tikoloho ea mocheso o tlase ho betri ea lithium

Bophelo ba potoloho ea libeteri tsa lithium bo itšetlehile haholo ka mokhoa oa ho tsoa, ​​ha mocheso o tlaase ke ntho e nang le tšusumetso e kholo bophelong ba lihlahisoa tsa lithium. Hangata, tlas'a tikoloho ea mocheso o tlase, bokaholimo ba betri bo tla fetoha mohato o bakang tšenyo ea sebopeho sa bokaholimo, bo tsamaeang le matla le phokotso ea lisele. Tlas'a maemo a phahameng a mocheso, khase e hlahisoa ka seleng, e tla potlakisa ho ata ha mocheso; tlas'a mocheso o tlase, khase e ke ke ea lokolloa ka nako, e potlakisa phetoho ea mohato oa mokelikeli oa betri; ha mocheso o le tlase, khase e ngata e hlahisoa 'me butle-butle phetoho ea mokhahlelo oa mokelikeli oa betri. Ka hona, phetoho ea thepa ea ka hare ea betri e matla haholo ebile e rarahane tlas'a mocheso o tlaase, 'me ho bonolo ho hlahisa likhase le lintho tse tiileng ka hare ho lisebelisoa tsa betri; ka nako e ts'oanang, mocheso o tlase o tla lebisa ho letoto la liketso tse senyang tse kang ho senyeha ha lik'hemik'hale tse ke keng tsa fetoloa ha ho kopana pakeng tsa thepa ea cathode le electrolyte; e tla boela e lebise ho fokotseha ha electrolyte self-assembly le bophelo ba potoloho; matla a phetisetso ea lithium ion ho electrolyte e tla fokotseha; ts'ebetso ea ho tjhaja le ho lahla e tla baka letoto la liketso tsa ketane tse kang polarization phenomenon nakong ea phetiso ea tefiso ea lithium ion, ho senyeha ha matla a betri le ho lokolloa ha khatello ea kelello ka hare, e amang bophelo ba potoloho le matla a matla a betri ea lithium ion le mesebetsi e meng. Ha mocheso o le tlase mochesong o tlase, ho matla le ho rarahana ho matla le ho rarahana ho matla le ho rarahana ho matla le ho rarahana, joalo ka karabelo ea redox holim'a betri, phallo ea mocheso, phetoho ea karolo ka har'a sele esita le ts'enyeho e felletseng e tla baka letoto la liketso tsa ketane joalo ka electrolyte. ho ipokella, ho fokotsa lebelo la ho arabela, ho senyeha ho tebileng ha matla a betri, le ho futsaneha ha lithium ion charge ea ho falla ha mocheso o phahameng.

3, Mocheso o tlase tsoelo-peleng ea litebello tsa lipatlisiso tsa theknoloji ea lithium betri

Sebakeng sa mocheso o tlase, polokeho, bophelo ba potoloho le botsitso ba mocheso oa sele ea betri li tla ameha, 'me phello ea mocheso o tlase bophelong ba libeteri tsa lithium e ke ke ea hlokomolohuoa. Hajoale, lipatlisiso le nts'etsopele ea thekenoloji ea matla a tlase a mocheso oa betri e sebelisang diaphragm, electrolyte, lisebelisoa tse ntle le tse mpe tsa elektrode le mekhoa e meng li entse tsoelo-pele e itseng. Nakong e tlang, nts'etsopele ea theknoloji ea lithium betri ea mocheso o tlase e lokela ho ntlafatsoa ho tloha likarolong tse latelang: (1) nts'etsopele ea tsamaiso ea lisebelisoa tsa lithium betri e nang le matla a mangata a matla, bophelo bo bolelele, ho fokotseha ho tlaase, boholo bo fokolang le theko e tlaase ka mocheso o tlaase. ; (2) ntlafatso e tsoelang pele ea taolo ea ho hanyetsa ka hare ea betri ka moralo oa moralo le theknoloji ea ho lokisa thepa; (3) nts'etsopele ea matla a phahameng, tsamaiso ea betri ea lithium e theko e tlaase, tlhokomelo e lokela ho lefshoa ho li-additives tsa electrolyte, lithium ion le anode le sebopeho sa cathode le thepa e sebetsang ka hare le lintho tse ling tsa bohlokoa tse susumetsang; (4) ho ntlafatsa ts'ebetso ea potoloho ea betri (ho tjhaja le ho ntša matla a khethehileng), botsitso ba mocheso oa betri sebakeng sa mocheso o tlase, polokeho ea libeteri tsa lithium sebakeng sa mocheso o tlase le tataiso e meng ea nts'etsopele ea mahlale a betri; (5) nts'etsapele ts'ebetso e phahameng ea ts'ireletso, litšenyehelo tse phahameng le litharollo tsa sistimi ea matla a theko e tlase maemong a tlase a mocheso; (6) hlahisa lihlahisoa tse amanang le betri ea mocheso o tlase le ho khothaletsa ts'ebeliso ea tsona; ( 7) hlahisa lisebelisoa tsa betri tse sebetsang hantle tse nang le mocheso o tlase le theknoloji ea lisebelisoa.
Ehlile, ntle le litaelo tse kaholimo tsa lipatlisiso, ho boetse ho na le litataiso tse ngata tsa lipatlisiso ho ntlafatsa ts'ebetso ea betri tlas'a maemo a mocheso o tlase, ho ntlafatsa matla a matla a betri ea mocheso o tlase, ho fokotsa ho senyeha ha betri maemong a mocheso o tlase, ho lelefatsa bophelo ba betri le lipatlisiso tse ling. tsoelo-pele; empa taba ea bohlokoa haholo ke mokhoa oa ho finyella ts'ebetso e phahameng, polokeho e phahameng, theko e tlaase, mefuta e mengata, bophelo bo bolelele le theko e tlaase ea khoebo ea libeteri tlas'a maemo a tlaase a mocheso ke hona joale Lipatlisiso li hloka ho tsepamisa maikutlo ho phunyeletsa le ho rarolla bothata.


Nako ea poso: Nov-22-2022