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Mabaka a matla a betri ea lithium

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Leverancier van draagbare energiecentrales

Bokhoni ba betri ke e &39;ngoe ea matšoao a bohlokoa a ts&39;ebetso ea betri ea lithium. Phokotso ea bokhoni e na le karolo e kholo ea molao-motheo oa libeteri tsa lithium, &39;me matla a lithium battery pack a fokotsehile,&39; me ho na le ho feta ho tloaelehileng, ho theoha ha moruo. , Lintlha tsa bohlokoa le ho feta, tekanyo ea ho itšehla thajana e fapane, e leng se etsang hore ho be le matla a sa leka-lekaneng a betri ea letoto la lihlooho, tse qetellang li etsa hore matla a betri ea lithium a se ke a tšoarella.

Boemo bo tlase ba betri ea lithium ke bokae? Boemo bo phahameng ba oxidation, mona bo tsamaisana le phetoho ea likarolo. Ho fetoha ha likarolo ho ka lebisa habonolo liphetohong tsa phetiso ea mekhahlelo le sebopeho sa karolo ea &39;mele. Phetoho ea karolo ea li-electrode e ka baka liphetoho ho li-parameter tsa lattice le li-lattice mismatch, ka hona e hlahisa khatello ea maikutlo e bakang ho sithabela ha lijo-thollo, &39;me e qala ho phatlalatsoa ha crack, e bakang tšenyo ea mochine mohahong oa thepa, kahoo e baka thepa ea electrochemical ea lithium betri attenuation.

2, sebopeho sa lisebelisoa tse mpe tsa elektrode tse rekisoang lisebelisoa tse mpe tsa electrode tse sebelisoang hangata libeteri tsa lithium li na le lisebelisoa tsa carbon, lithium titanate, joalo-joalo, pampiri ena e sekaseka graphite e mpe e tloaelehileng. Ho fokotseha ha matla a betri ea lithium ho etsahala ka lekhetlo la pele, sethaleng sena, SEI e thehoa holim&39;a electrode e mpe, e jang karolo ea lithium ion.

Ha betri ea lithium e sebelisoa, phetoho ea sebopeho sa graphite e ka boela ea baka ho fokotseha ha matla a betri. Phuputso e fumane hore thepa ea carbon ka mor&39;a ho potoloha e ile ea boloka morphosography ea graphite, empa halofo ea kristale holim&39;a bokaholimo ba kristale e ile ea e-ba khōlō, ea fella ka boholo ba lijo-thollo tse nyenyane ka tataiso ea C-axis, &39;me phetoho ea sebopeho sa kristale e ile ea baka mapetsong. Ho feta moo, filimi ea SEI ea holim&39;a elektrode e mpe &39;me e khothalletsa ho lokisoa ha filimi ea SEI,&39; me khōlo e feteletseng ea filimi ea SEI e sebelisoa, kahoo e baka matla a ke keng a qojoa a betri ea lithium.

3. Electrolyte haholo-holo e kenyelletsa likarolo tse tharo tsa solvent, electrolyte le additives. Ho senyeha ha solvent, ho senyeha ha electrolyte ho ka baka tahlehelo ea matla a betri.

Ho senyeha le karabelo ea lehlakoreng la electrolyte ke ntlha e ka sehloohong ea ho fokotsa matla a betri ea lithium. Ho sa tsotellehe lisebelisoa tse ntle le tse mpe tsa electrode, tse sebetsang, ka ho potoloha ha betri ea lithium, ho senyeha ha electrolyte le ho kopana pakeng tsa lintho tse tloaelehileng le tse mpe tsa electrode Ho itšoara ho ka etsa hore matla a fokotsehe. 4.

Ho phuthela ha betri ka boithatelo ho fokotswa ke sebaka se tsitsitseng. Foil ea koporo e ke ke ea otlolloa ka bolokolohi ho hlahisa khatello. Tlas&39;a ketso ea khatello, ho phatloha ha pele ho hasanya khōlo, ka lebaka la sebaka se sa lekaneng, foil ea koporo e robehile.

5, tefiso ea nako e telele ea botebo le ho tenyetseha ho lahla ho lahla ho fetisetsa ho tloha mehahong ea ka hare, e &39;ngoe ke ho etsa hore ho be le volatilization e feteletseng ea electrolyte,&39; me ea bobeli ke hore electrode e mpe ea libeteri tsa lithium e baka liphetoho ho lera la dielectric ho fokotseha, ho theha bokhoni Tahlehelo e sa feleng; ho tjhaja haholo ho tloha ho botsitso ba motlakase le khatello e phahameng ea matla a motlakase, tjhaja e emisitseng ho tjhaja, motlakase oa eketseha, o baka ho tjhaja, ho fella ka ho tjhaja betri, ho baka tahlehelo e fapaneng ya matla a sebopeho se setle sa elektrode, ho ntsha oksijene Tharollo ya electrolytic e na le oxidized ka matla le ho phatloha ha mollo; ho bola ha letsoai la electrolyte organic solvent / electrolyte lithium letsoai; tlhahlobo e mpe ea electrode e ka etsa hore concentrator ea koporo e mpe ea electrode e qhale, e ntle ho theha litšoantšo tsa koporo. 6. Mocheso oa mocheso ke e &39;ngoe ea lintlha tsa bohlokoa tse amang bophelo ba betri ea lithium.

Lithempereichara tse feteletseng kapa mocheso o feteletseng li ka baka phokotso ea litaba tsa lithium ion tse sebetsang, kahoo tsa fokotsa bophelo ba betri ea lithium. Lisosa tsa ho fokotseha ha matla a betri: 1. Ho tsofala ha motlakase, ho fokotseha.

2. Sekhahla se fapaneng sa ho itšehla thajana, se hlahisang motlakase oa mantlha o sa leka-lekaneng, se lebisang ho matla a betri ea lithium a fokotsehileng a sa tšoarelleng nako e telele. 3.

Ts&39;ebetsong ea betri le tjhaja le ho lahla, ketsahalo ea "vulcanization" e ama matla a betri. Matla a betri ea lithium ha a lekane, ho khutlela ho tloaelehileng joang? 1, qala ka ho tjhaja pakete eohle ea betri ea lithium, e phaphametseng ka mor&39;a hore leseli ke lihora tse 2 ho isa ho tse 3. Haeba pakete ea betri e le tahlehelo ea nako e telele, ha e e-s&39;o lumelloe ho lefisa motlakase, &39;me e ka lefisa mosireletsi ka ho toba ka metsotso e 10 (ho lefisa sekepe sa ho lahla), ebe o e lefisa.

2, tlosa thapo, pele u ntša, ka kopo etsa letšoao le letle, likhoele tse 2, mohala o ke ke oa kenngoa. Ho lekanya motlakase oa lithapo tse haufi le mohala, haeba ke 48V, ho na le li-voltage tse 16, 60V ke 20 voltages. Motlakase oa pele oa likhoele o qalang ho electrode e mpe ke motlakase o tsoang paketeng ea betri ho ea ho thapo ea pele ea motso, le tse ling tse sutumetsang.

Fumana khoele e le &39;ngoe ea motlakase ka tlase ho 3.50V, fumana lipalo tse ntle le tse mpe, le tag. 3.

Sebelisa tjhaja ea 3.6V ho tjhaja khoele e le &39;ngoe ea motlakase o ka tlase ho 3.50V ho isa ho 3.

60 ho 3.70V. Leha ho le joalo, ho na le tlhokahalo ea ho ba le thuso, &39;me ho thibetsoe ka tieo hore ho tjhaja ho baka libeteri tsa lithium.

4, kenya thapo ho latela tatellano ea mantlha, ela hloko hore u se ke oa kheloha, kenya betri, e ka sebelisoa. Bokhoni ba betri ea lithium bo &39;nile ba sebelisoa khafetsa,&39; me bokhoni ba eona bo tla fokotseha ka tlhaho. E bonahatsoa ka phokotso ea motlakase, &39;me matla ha a lekane.

Sena se amana le litšobotsi tsa thepa ea betri ea lithium. Kutloisiso e bonolo ke hore ts&39;ebetso ea lithium ion e tla tsoela pele ho fokotseha, ho fihlela qetellong Bokhoni bo fokotsehile. E le ho eketsa bophelo ba betri ea lithium, hangata ho kgothaletswa ho sebelisa betri ea lithium ka tsela e sa tebang le e sa tebang, u se ke ua sebelisa libeteri tsa lithium, kapa ho tjhaja ha e potlakile, ha e rate bophelo ba betri ea lithium.

Taba ea ho fokotseha ha matla a betri ea lithium e fokotsehile ka ho fokotseha ha ho fokotseha ha lithium ion, &39;me lintlha tsa eona ke ho senyeha ha sebopeho kapa ho se sebetse ha lisebelisoa tse ntle le tse mpe tsa elektrode, ho bola ha electrolyte, tšebeliso e mpe ea betri ea lithium, joalo-joalo. Hangata hoa hlokahala ho sebelisa betri ea lithium ka nepo ho lelefatsa bophelo ba betri ea lithium.

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