Waterma inowedzera sei kuderera kwekushisa kwe lithium iron phosphate ion mabhatiri?

Forfatter: Iflowpower – Fournisseur de centrales électriques portables

Mazuva mashoma apfuura, pa7th Global New Energy Automobile Conference (GNEV7), Watma Mutevedzeri Mukuru Mukuru Rao Minmin Akaburitsa dingindira re "Tsvakiridzo yeZvinhu Zvinokanganisa Lithium Ion Bhatiri reLithium Ion". Zviri mukati zvakarongeka sezvizvi: Kutanga, Rao Minmin inotangwa, Watma yakavambwa muna 2002, Headquarters muShenzhen. Parizvino kune vashandi vanopfuura 12,000, uye yekutanga batch yemakambani ebhatiri achipinda mune ine simba lithium-ion bhatiri dhairekitori muBazi reIndasitiri uye Information Technology, kusanganisira anopfuura 50,000 Watma mabhatiri anomhanya mumugwagwa.

Parizvino, mazhinji emagetsi e-lithium-ion mabhatiri mumunda wemagetsi ekutakura mota ari lithium iron phosphate. Rao Dingmin akataura kuti kune akati wandei mabhenefiti e lithium iron phosphate: iyo kutenderera hupenyu uye magnification zviri nani, asi yakaderera tembiricha ichave yakareba zvishoma pane mamwe mabhatiri masisitimu. Chechipiri, mota yemagetsi iripo ine musiyano wakakura mukupisa kwakasiyana.

Mota dzemagetsi dzinogona kumhanya makiromita zana nemakumi matanhatu patembiricha yekamuri dzinogona kuenda ku -20 madhigirii chete kumhanya makiromita 60-80, uye kushanda kwacho kuri pachena. Chechipiri, dambudziko rekushomeka kwekushisa kwekuchaja munguva yechando, kusanganisira yakaoma kubhadharisa, zviitiko zvekuchengetedza. Kune lithium iron phosphate ion bhatiri, Watma yakaita tsvakurudzo yakadzama pamusoro pemamiriro ayo ekushisa kwepasi: imwe ndiyo simba re electrode yakanaka, phosphate positive electrode pachayo irombo electron conductivity, uye polarization inowanzowedzera, kuderedza kukwanisa Kutamba; yechipiri yakaipa, yakaipa danda izvi zvakakosha kune yakaderera tembiricha kubhadharisa, nekuti ichakanganisa nyaya dzekuchengetedza; chechitatu ndicho chidimbu che electrolyte, inogona kuwedzera pane yakaderera tembiricha, lithium ion migration impedance ichawedzera; Ina ndiyo binder, iyo parizvino inonyanya kukanganiswa nekuderera kwekushisa kwebhatiri.

Iro zano rese reWatma rinobva kune yakanaka electrode, negative electrode, electro-hydraulic, uye adhesive mana-chidimbu yakadzika tembiricha kuita kwe lithium iron phosphate ion bhatiri. Panyaya yezvakanaka, iko zvino yave nanomechanically, saizi yaro, kuramba, uye varimi veAB planar axis vanokanganisa hunhu hwebhatiri rese rakadzika tembiricha. Lithium lithium iron phosphate inogadzirwa nematatu maitiro.

Kubva pamamiriro edu ose ekugadzirira, yakasiyana-siyana lithium iron phosphate process nano-coated, tinotarisa kubva kune axis yeAB, yakawedzera lithium Ion migration channel ichava yakakura, iyo inobatsira kuvandudza kushanda kwebheteri. Maitiro akasiyana ane mhedzisiro yakasiyana pane yakanaka electrode, uye yakadzika tembiricha yekuburitsa hunhu hwebhatiri yakagadzirwa ne100 kusvika 200 nano-particle diameter phosphate, iyo inogona kuburitsa 94% pa -20 madhigirii, inova chidimbu dhayamita ye nanofence inopfupisa nzira yekutama, Inovandudzawo mashandiro ekushisa kwakadzika uye kubuda, nekuti iyo lithium ine hukama neiyo electrophosphate. Tichifunga nezvechaji hunhu kubva kune yakashata electrode, Rao Dingyi anotenda kuti yakaderera tembiricha kuchaja kwemabhatiri e-lithium-ion kwakakosha, kusanganisira saizi yechikamu chehukuru hwechikamu uye kukwirira kweiyo negative electrode, sarudza matatu akasiyana artificial graphite seyakaipa electrode kudzidza akasiyana layer spacings uye granules.

Kufurira nzira kune yakaderera tembiricha maitiro. Kubva pazvinhu zvitatu, girafu yezviyo yedanda rakakura, kubva kune impedance, iyo impedance yemuviri uye ion migration impedance idiki. Panyaya yekuchaja, Rao Shanyi anotenda kuti dambudziko rekubuda harisi rakakura pasi pekushisa kwakadzika munguva yechando, zvakakosha kune yakaderera tembiricha charge.

Nokuti muhorizontal flow ratio, 1C kana 0.5C cross-flow ratio inokosha zvikuru, kuti irambe ichimanikidza kuva yakareba kwazvo, nekuvandudza zvitatu zvakasiyana-siyana zvemagraphite kuenzanisa, imwe yacho inenge yakakura mu -20 dhigirii yekuchaja inoramba ichiyerera reshiyo Yakavandudzwa, kubva pa40% kusvika ku70%, kuwedzera kwepakati pepakati, panewo kuderera kwekukura kwechikamu. Ichi chidimbu che electrolyte, mu -20 madhigirii, -30 madhigirii, iyo electrolyte, yakawedzera viscosity, uye kukanganisa kushanda.

Electrolyte kubva kumativi matatu: solvent, lithium munyu, additive. Rao Dingmin akati, "Kuburikidza nekuedza, takaona kuti solvent inokanganisa tembiricha yakaderera yelithium iron phosphate ion mabhatiri kubva pa70%, kune inodarika makumi mapfumbamwe muzana, kune anopfuura gumi nemaviri mapoinzi; chechipiri, akasiyana lithium munyu ane humwe hunhu hwekuchajisa tembiricha uye kubuda. Impact.

Isu takagadzirisa iyo inonyungudutsa system uye iyo lithium munyu, uye yakaderera tembiricha yekuwedzera inogona kuwedzera simba rekuburitsa kubva pa85% kusvika 90%, kureva, mune yese electrolytic liquid system, solvent, lithium munyu, uye additives ndeye simba redu lithium ion bhatiri. Iko kune kumwe kukanganisa pane yakaderera tembiricha maitiro, kusanganisira mamwe masystem masisitimu. "Adhesive, Rao Dingyi akati kune marudzi matatu, mapoinzi maviri, mutsara.

Kana iyo -20 dhigirii kubhadharisa uye kuburitsa, iyo mapoinzi maviri angangoita anopfuura makumi manomwe kusvika makumi masere kutenderera, danda rose ndiyo mamiriro eiyo inonamira kukundikana, uye kushandiswa kwemutsara bhaidhi hakuna dambudziko iri. Mushure mehurongwa hwose, kubva pakuvandudzwa kwe electrode yakanaka, electrode yakaipa, electrolyte kusvika kune binder, tine maitiro ari nani pane lithium iron phosphate ion bhatiri monomer, mumwe ari kuchaja maitiro, -20, -30, - 40 madhigirii patembiricha ye 0.5C kuchaja nguva dzose ikozvino reshiyo inogona kusvika 62.

9%, - 20 dhigirii tembiricha discharge inogona kuburitswa 94%, iyi ndiyo humwe hunhu hwekukudza uye kutenderera. Kazhinji, mota nyowani dzemagetsi dzakajairwa kuchamhembe, kwete chete bhatiri monomer inogona kugadzirisa matambudziko ekuchaja, uye kune zvakare kuvandudzwa kweBMS kuburikidza nePack, uye hunyanzvi hwemuenzaniso wekuvimbisa. Guarantee itsva simba mota kuchamhembe kwakadzika tembiricha yakajairika kushanda.

.