Betri ea mocheso o tlase ke eng? Melemo le mesebetsi ea libeteri tsa lithium tse tlase mocheso

Metsoalle e mengata e tla ba le lipotso ha e utloa karabelo ea pele ea libeteri tsa mocheso o tlase: Betri ea mocheso o tlase ke eng? Na ho na le thuso?

Betri ea mocheso o tlase ke eng?

Betri e nang le mocheso o tlase ke betri e ikhethang e etselitsoeng bofokoli ba mocheso o tlase o ts'ebetsong ea mehloli ea matla a lik'hemik'hale. The betri ea mocheso o tlase e sebelisa VGCF le activated carbon e nang le sebaka se itseng sa bokaholimo ba (2000±500)㎡/ li-additives tsa khase, 'me e lumellana le lisebelisoa tsa elektrode tse ntle le tse mpe. Li-electrolyte tse khethehileng tse nang le li-additives tse khethehileng li kenngoa ho netefatsa hore ho na le mosebetsi o fokolang oa mocheso oa betri ea mocheso o tlaase. Ka nako e ts'oanang, mocheso o phahameng Tekanyo ea phetoho ea molumo oa 24h ho 70 ℃ ke ≦0.5%, e nang le ts'ebetso ea ts'ireletso le polokelo ea libeteri tse tloaelehileng tsa lithium.

Libetri tsa mocheso o tlase li bua ka libeteri tsa lithium-ion tseo mocheso oa tsona o sebetsang o ka tlase ho -40°C. Li sebelisoa haholo-holo sebakeng sa sefofane sa sesole, lisebelisoa tse kentsoeng likoloing, lipatlisiso tsa saense le pholoso, puisano ea matla, tšireletso ea sechaba, lisebelisoa tsa elektronike tsa bongaka, literene, likepe, liroboto le libaka tse ling. Libetri tsa lithium tse nang le mocheso o tlase li arotsoe ho latela ts'ebetso ea tsona ea ho tsoa: polokelo ea matla, libeteri tsa lithium tse nang le mocheso o tlase, le li-betri tsa lithium tse nang le mocheso o tlase. Ho latela masimo a kopo, libeteri tsa lithium tse nang le mocheso o tlase li arotsoe ka libeteri tsa lithium tse nang le mocheso o tlase bakeng sa ts'ebeliso ea sesole le libeteri tsa lithium tse tlase mocheso oa indasteri. Tikoloho ea ts'ebeliso ea eona e arotsoe ka lihlopha tse tharo: libeteri tsa mocheso o tlase oa baahi, libeteri tse khethehileng tsa mocheso o tlase, le libeteri tsa mocheso o tlase oa tikoloho.

Libaka tsa ts'ebeliso ea libeteri tsa mocheso o tlase haholo-holo li kenyelletsa libetsa tsa sesole, sefofane, lisebelisoa tsa likoloi tse tsamaisoang ke limisaele, lipatlisiso tsa mahlale a polar, pholoso e batang, likhokahano tsa motlakase, polokeho ea sechaba, lisebelisoa tsa elektroniki tsa bongaka, literene, likepe, liroboto le likarolo tse ling.

Melemo le mesebetsi ea libeteri tsa lithium tse tlase mocheso

Libetri tsa lithium tse nang le mocheso o tlase li na le melemo ea matla a bobebe, a phahameng a khethehileng, le bophelo bo bolelele 'me li sebelisoa haholo lisebelisoa tse fapaneng tsa elektroniki. Har'a bona, betri ea lithium-ion e nang le mocheso o tlaase oa polymer e boetse e na le melemo ea ho kenya liphutheloana tse bonolo, ho bonolo ho fetola sebopeho sa geometri sa sefefo, se khanyang le se senyenyane, le tšireletso e phahameng. E fetohile mohloli oa matla bakeng sa lihlahisoa tse ngata tsa elektroniki tsa mehala.

Ha e khone ho sebelisa libeteri tse tloaelehileng tsa baahi ho -20 ° C, 'me e ntse e ka sebelisa libeteri tsa lithium tse nang le mocheso o tlase, hangata e le -50°C. Hajoale, libeteri tsa mocheso o tlase hangata li sebelisoa tikolohong ea ℃ kapa ka tlase. Ntle le phepelo ea motlakase ea puisano, lisebelisoa tsa motlakase tse nkehang tsa sesole, phepelo ea matla a mats'oao, le lisebelisoa tse nyane tsa lisebelisoa tsa motlakase le tsona li hloka tšebeliso ea libeteri tsa mocheso o tlase. Lisebelisoa tsena tsa motlakase li boetse li na le litlhoko tsa ts'ebetso ea mocheso o tlase ha o sebetsa tšimong.

Merero ea ho hlahloba sebaka se kang sefofane sa sepakapaka le lenaneo la ho lulisa khoeling le ntseng le sebelisoa Chaena le tsona li hloka mehloli ea matla a polokelo ea matla a phahameng, haholo-holo libeteri tsa lithium tse nang le mocheso o tlaase. Hobane lihlahisoa tsa puisano tsa sesole li na le litlhoko tse thata holima litšobotsi tsa betri, haholo-holo tse hlokang litiiso tsa puisano ka mocheso o tlase. Ka hona, nts'etsopele ea libeteri tsa lithium tse nang le mocheso o tlaase ke ea bohlokoa haholo ho nts'etsopele ea liindasteri tsa sesole le tsa lifofane.

Libetri tsa lithium tse nang le mocheso o tlase li sebelisoa haholo ka lebaka la boima ba tsona bo bobebe, matla a khethehileng a phahameng, le bophelo bo bolelele. Libetri tsa lithium tse nang le mocheso o tlase li entsoe ka thepa le lits'ebetso tse ikhethang 'me li loketse ho sebelisoa libakeng tse batang tse ka tlase ho zero.

Baenjiniere ba Univesithing ea California, San Diego, ba atlehile ho hlahisa betri ea matla a lithium iron phosphate lithium-ion e nang le mocheso o tlase o ka bolokang ts'ebetso mocheso oa kamore ka mocheso o tlase oa 60 ° C. Hona joale, mefuta ea libeteri tsa mocheso o tlaase tseo e ka li kenyang 'marakeng haholo-holo li kenyelletsa libeteri tsa lithium iron phosphate le li-betri tsa lithium tse nang le mocheso o tlaase oa polymer. Mefuta ena e 'meli ea thekenoloji ea betri ea mocheso o tlase e batla e hōlile.

Likarolo tsa betri ea lithium iron phosphate e tlase mocheso

• Ts'ebetso e ntle ea mocheso o tlase: ho tsoa ho 0.5C ho -40 ℃, matla a ho ntša a feta 60% ea kakaretso ea pele; ho -35 ℃, ho phatloha ho 0.3C, matla a ho ntša metsi a feta 70% ea kakaretso ea pele;
• Sebaka se pharaletseng sa mocheso oa ho sebetsa, -40 ℃ ho ea ho 55 ℃;
• Mocheso o tlase lithium tšepe phosphate betri e na le curve ea 0.2c discharge cycle test at -20°C. Kamora 'lipotoloho tse 300, ho ntse ho na le sekhahla sa ho boloka matla se fetang 93%.
• E ka ntša mothinya oa ho ntša mocheso oa libeteri tsa lithium iron phosphate tsa mocheso o tlase mochesong o fapaneng ho -40°C ho isa ho 55°C.

Betri ea lithium iron phosphate e tlase mocheso ke theknoloji e ncha e ntlafalitsoeng ka mor'a lipatlisiso tsa nako e telele le nts'etsopele le tlhahlobo. Lisebelisoa tse tala tse sebetsang ka mokhoa o ikhethileng li eketsoa ho electrolyte. Lisebelisoa tse tala le theknoloji li netefatsa ts'ebetso e phahameng ea betri ea ho ntša metsi maemong a mocheso a sa tebang. Betri ena ea mocheso o tlase oa lithium iron phosphate e sebelisoa haholo libakeng tse nang le mocheso o tlase joalo ka lisebelisoa tsa sesole, indasteri ea sefofane, lisebelisoa tsa ho qoela, lipatlisiso tsa mahlale a polar, puisano ea matla, ts'ireletso ea sechaba, lisebelisoa tsa elektroniki tsa bongaka, jj.