Waterma e eketsa ts&39;ebetso e tlase ea mocheso oa libeteri tsa ion tsa lithium iron phosphate ion joang?

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Pārnēsājamas spēkstacijas piegādātājs

Matsatsi a &39;maloa a fetileng, Sebokeng sa 7th Global New Energy Automobile (GNEV7), Motlatsi oa Mookameli oa Kakaretso oa Watma Rao Minmin O ile a hatisa sehlooho sa "Lipatlisiso ka Lintho Tse Amang Tse Amang Battery ea Lithium Ion ea Lithium Ion". Litaba li hlophisitsoe ka tsela e latelang: Pele, Rao Minmin e hlahisoa, Watma e thehiloe ka 2002, Ntlo-khōlō e Shenzhen. Hona joale ho na le basebetsi ba fetang 12,000, &39;me sehlopha sa pele sa lik&39;hamphani tsa betri tse kenang lethathamong le matla la betri ea lithium-ion Lefapheng la Indasteri le Theknoloji ea Boitsebiso, ho kenyelletsa le libeteri tse fetang 50,000 tsa Watma tse tsamaeang tseleng.

Hona joale, boholo ba libeteri tsa lithium-ion tšimong ea likoloi tsa likoloi tsa motlakase ke lithium iron phosphate. Rao Dingmin o boletse hore ho na le melemo e &39;maloa e bapisoang ea lithium iron phosphate: bophelo ba potoloho le ho holisa li betere, empa mocheso o tlase o tla nka nako e telele ho feta lits&39;ebetso tse ling tsa betri. Taba ea bobeli, koloi ea hona joale ea motlakase e na le phapang e batlang e le kholo maemong a fapaneng a mocheso.

Likoloi tsa motlakase tse ka mathang lik&39;hilomithara tse 160 mocheso oa kamore li ka ea ho -20 degrees feela li matha lik&39;hilomithara tse 60-80, &39;me katleho e bonahala haholoanyane. Taba ea bobeli, bothata ba ho tjhaja mocheso o tlase mariha, ho kenyeletswa ho le thata ho lefisa, diketsahalo tsa polokeho. Bakeng sa betri ea lithium iron phosphate ion, Watma e entse lipatlisiso tse qaqileng haholoanyane mabapi le litšobotsi tsa eona tsa mocheso o tlaase: e &39;ngoe ke tšusumetso ea electrode e ntle, electrode e ntle ea phosphate ka boeona ke conductivity e futsanehileng ea elektronike,&39; me polarization e ka &39;na ea eketseha, e fokotsa bokhoni Bapala; ea bobeli mpe, mpe pole ena ke ea bohlokoa ho theko e tlaase mocheso, hobane e tla ama litaba tsa tshireletso; ea boraro ke sengoathoana sa electrolyte, e ka &39;na ea eketseha ka mocheso o tlase, impedance ea lithium ion migration e tla eketseha; Tse &39;nè ke binder, eo hajoale e anngoeng haholo ke ts&39;ebetso e tlase ea mocheso oa betri.

Mohopolo o felletseng oa Watma o tsoa ho electrode e ntle, electrode e fosahetseng, electro-hydraulic, le sekhomaretsi sa likarolo tse nne tsa mocheso o tlase oa betri ea lithium iron phosphate ion. Mabapi le botle, hona joale ke nanomechanically, boholo ba eona ba likaroloana, ho hanyetsa, le balemi ba AB planar axis ba tla ama litšobotsi tsa mocheso o tlase oa betri kaofela. Lithium lithium iron phosphate e lokiselitsoe ka mekhoa e meraro.

Ho tloha maemong ohle a rona a ho itokisa, mokhoa o fapaneng oa lithium iron phosphate nano-coated, re sheba ho tloha ho axis ea AB, ho eketseha ha lithium The ion migration channel e tla ba e kholo, e tla thusa ho ntlafatsa tshebetso ea betri. Mekhoa e fapaneng e na le liphello tse fapaneng ho electrode e ntle, le litšobotsi tse tlaase tsa mocheso oa betri tse entsoeng ke 100 ho ea ho 200 nano-particle diameter phosphate, e ka lokollang 94% ho -20 degrees, e leng bophara ba karoloana ea nanofence e khutsufatsang tsela ea ho falla, E boetse e ntlafatsa ts&39;ebetso ea mocheso o tlaase le ho tsoa, ​​hobane lithium tse ntle li amana le electrophosphate. Ha ho nahanoa ka litšobotsi tsa ho tjhaja ho tswa ho eleketrode e mpe, Rao Dingyi o lumela hore mocheso o tlase oa betri ea lithium-ion o bohlokoa, ho kenyelletsa le boholo ba phatsa ea boholo ba phatsa le molumo oa eleketrode e mpe, khetha graphite ea maiketsetso e meraro e le eleketrode e mpe ho ithuta li-spacings le granules tse fapaneng.

Tšusumetso ea tsela e lebisang litšobotsing tsa mocheso o tlase. Ho tsoa ho lisebelisoa tse tharo, graphite ea lijo-thollo ea lera e kholo, ho tloha ho impedance, ho itšireletsa ha &39;mele le impedance ea ho falla ha ion e batla e le nyenyane. Mabapi le ho lefella, Rao Shanyi o lumela hore bothata ba ho tsoa ha bo boholo tlas&39;a mocheso o tlaase mariha, ke habohlokoa ho tefiso e tlaase ea mocheso.

Hobane ka karo-karolelano phallo tshekaletseng, 1C kapa 0.5C cross-flow karo-karolelano ke ea bohlokoa haholo, ho khatello e sa khaotseng ho ba nako e telele haholo, ka ho ntlafatsa lipapiso tse tharo tse fapaneng tsa graphite, e &39;ngoe ea tsona e batlang e le khōlō ka tekanyo ea -20 ea ho tjhaja kamehla phallo e ntlafetseng, ho tloha ho 40% ho ea ho 70%, ho eketseha ha sekhahla sa lera, ho boetse ho na le ho fokotseha ha boholo ba likaroloana. Karolo ena ea electrolyte, ka likhato tse -20, -30 likhato, electrolyte, e eketsehile viscosity, &39;me e senya tshebetso.

Electrolyte ho tloha likarolong tse tharo: solvent, lithium letsoai, additive. Rao Dingmin o itse, "Ka teko, re fumane hore solvent e ama mocheso o tlase oa libeteri tsa lithium iron phosphate ion ho tloha 70%, ho na le ho feta 90%, ho na le lintlha tse fetang leshome le metso e &39;meli; ea bobeli, matsoai a fapaneng a lithium a na le tšobotsi e itseng ea tefiso e tlaase ea mocheso le ho tsoa. Tšusumetso.

Re hlophisitse sesebelisoa sa solvent le letsoai la lithium, &39;me motsoako o tlaase oa mocheso o ka eketsa matla a ho ntša metsi ho tloha ho 85% ho ea ho 90%, ke hore, tsamaisong eohle ea metsi a electrolytic, solvent, lithium letsoai le li-additives ke tsa matla a rona a lithium ion betri. Ho na le tšusumetso e itseng ho litšobotsi tse tlaase tsa mocheso, ho kenyelletsa le lisebelisoa tse ling tsa lisebelisoa. "Adhesive, Rao Dingyi o itse ho na le mefuta e meraro, lintlha tse peli, mola.

Ha -20 tekanyo tefiso le ho lahla, lintlha tse peli mohlomong etsa ho feta 70 ho 80 lipotoloho, palo eohle ke boemo ba boemo ba ho hloleha sekgomaretsi, &39;me tšebeliso ea linear binders ha ho na bothata bona. Ka mor&39;a tsamaiso eohle, ho tloha ntlafatsong ea eleketrode positive, eleketrode negative, electrolyte ho binder, re na le phello e molemo ka lithium tšepe phosphate ion betri monoma, e mong ke tjhaja litšobotsi, -20, -30, - 40 likhato ka mocheso oa 0.5C tjhaja kamehla karo-karolelano ea hona joale ka fihla 62.

9%, - 20 degree mocheso ho tsoa ho ka lokolloa 94%, ena ke litšobotsi tse ling tsa ho holisa le ho potoloha. Ka kakaretso, likoloi tse ncha tsa matla li sebetsa ka leboea, eseng feela betri ea monomer e ka rarollang mathata a ho tjhaja, hape ho na le boqapi ba BMS ka Pack, le ho nchafatsoa ha mohlala oa tiiso. Netefatsa likoloi tse ncha tsa motlakase sebakeng se tloaelehileng sa mocheso o tlase o ka leboea.

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