Kugadzirira nzira yezvakanaka electrode zvinhu lithium iron phosphate

著者：Iflowpower – Provedor de central eléctrica portátil

Lithium iron phosphate iripo muchimiro chephosphate lithium ore mune zvakasikwa, ine yakarongeka olivine chimiro. Lithium phosphate chemicals molecular formula ndeye: LIMPO4, apo lithium yakanaka; pakati simbi simbi mutengo wakanaka; iyo phosphate haina kunaka matatu-mutengo, inowanzoshandiswa se lithium bhatiri positive material material. Kushandiswa kwemabhatiri e-lithium iron phosphate ndeaya: midziyo yekuchengetedza simba, zvishandiso zvemagetsi, magetsi emagetsi akareruka, motokari dzemagetsi mahombe, midziyo miduku uye simba rekufambisa, kusanganisira lithium iron phosphate ine simba idzva remagetsi emagetsi anoita 45% yehuwandu hwephosphite.

Chechipiri, lithium iron phosphate se lithium electrode material kana ichienzaniswa nedzimwe lithium battery positive materials, olivine chimiro chakachengeteka zvakanyanya, zvakatipoteredza, zvakachipa, kwenguva refu, kushanda kwekushisa kwepamusoro, nezvimwewo, ndiyo yakanyanya simba lithium ion Imwe yebheteri yakanaka zvinhu. Kuchengetedzwa kwekuchengetedza kwakasimba PO kiyi mune yakakwira-phosphate makristasi, inonetsa kuora, uye haizopunzike muchimiro kana kugadzira maokisi akasimba panguva yekuchaja uye tembiricha yakakwira.

Hupenyu hwekutenderera Hupenyu hurefu hwekutungamirira-asidhi yebhatiri inotenderera nguva dzinosvika mazana matatu, hupenyu hwesevhisi huri pakati pemakore 1 ne1.5. Uye nhamba ye lithium iron phosphate bhatiri inogona kusvika kupfuura 2,000, inofungidzirwa kushandisa hupenyu hwemakore 7-8.

Kupisa kwepamusoro-kupisa kwesimbi-isina phosphate thermal peaks inosvika 350 ° C kusvika 500 ° C, nepo lithium manganate uye lithium cobaltate ingangoita 200 ° C. Iine hushamwari nharaunda lithium iron phosphate bhatiri inowanzoonekwa seine simbi inorema uye isingawanzo simbi, isiri-chepfu, isingasvibise, ndeye yakasvibira bhatiri remamiriro ekunze. Iyo yekuchaja uye yekuburitsa nzira yelithium iron phosphate seyakanaka electrode zvinhu zvakasiyana nezvimwe zvakajairwa zvinhu, uye kubhadharisa uye kubuda kwe electrochemical kunoratidza zvikamu zviviri zve lithium iron phosphate, kubhadharisa uye kuburitsa maitiro ndeaya anotevera: kubhadharisa maitiro: Discharge reaction: Charge, Li + Kubva kuLifePO4, Fe2 + yakarasikirwa nerekitironi muFE3 +; payakaburitswa, Li + yakaiswa musimbi phosphite muLifePo4.

Shanduko yeLi + inoitika muLifepo4 / Fepo4 interface, saka iyo yekuchaja uye yekuburitsa curve yakanyanya kupfava, iyo inogona zvakare yakagadzikana, yakakodzera kune electrode zvinhu. Chechitatu, kugadzirira kwe lithium iron phosphate kugadzirira kwezvisanganiswa ne lithium iron phosphate. Zvimwe zvinowanzoitwa lithium source, iron source, carbon source, uye phosphorus sosi ndeyotevera: Kugadzirira kwe lithium iron phosphate powder kunogona kukanganisa kushanda kwayo sechinhu chakanaka.

Kune nzira dzakawanda dzekugadzira lithium iron phosphate, senge tembiricha yakasimba solid phase reaction, carbon thermal reduction method, uye unminerated hydrothermal method, spray thermal solution, sol -gel method, total precipitation method, etc. 1. Yepamusoro tembiricha yakasimba chikamu chekuita nzira yakakwira tembiricha yakasimba chikamu chekuita nzira ndeye kugadzirira lithium iron phosphate ndiyo yakanyanya kukura yekuvandudza kwazvino uye nzira inonyanya kushandiswa.

Mushure mesimbi tsime, lithium tsime, phosphorous sosi inosanganiswa nemakemikari mita pane zvakafanana yakavhenganiswa, mune inert mhepo, kutanga sintered 5 kusvika 10 h panguva yakaderera tembiricha (300 ~ 350 ° C), kuitira kuti mbishi pakutanga yakaora, ipapo mutembiricha (600 ~ 800 ° C) Sintering 10 simbi orivine phosphate 10 ~ 20 simbi. High tembiricha yakasimba chikamu nzira synthesis yelithium iron phosphate process iri nyore, mamiriro ekugadzirira ari nyore kudzora, chakashata ndechekuti saizi yekristaro yakakura, dhayamita yechidimbu haisi nyore kudzora, kugovera hakuna kuenzana, chimiro zvakare hachina kurongeka, mhando yechigadzirwa haina kunaka. 2.

Carbonatic thermal reduction method kabhoni thermal reduction method ndeyekuwedzera carbon sources (starch, sucrose, etc.) mukusanganiswa kwezvinhu, zvinowanzo shandiswa pamwe chete nepamusoro tembiricha yakasimba chikamu, uye kabhoni sosi inogona kuderedza Fe3 + mukukwirira kwekushisa calcination kusvika Fe2 +, Dzivisa maitiro panguva yekuita kuti ive Fe3 +, kuitira kuti maitiro ekugadzirisa, maitiro ekugadzirisa, tambo yakareba uye inonzwisisika inonzwisisika, asi nguva yakawanda inonzwisisika. 3.

Spray pyrolysis spray heat solution inzira inoshanda yekuwana yunifomu particle size uye yenguva dzose chimiro che lithium iron phosphate powder. Iyo precursor imbeu yereactor ye450 kusvika 650 ° C ine inotakura gasi, uye lithium iron phosphate inowanikwa mushure mekupisa kwakanyanya. Iyo precursor fog spherical spherical spheroid yakagadzirwa nespray pyrolysis yakakwira, uye saizi yekugovera saizi yakafanana.

Mushure mekuita kwekushisa kwepamusoro, pneumophosphate inowanikwa. Lithium iron phosphate sphere inobatsira kuwedzera iyo chaiyo nzvimbo yechinhu, kuwedzera huwandu hwehuwandu hwesimba rechinhu. 4.

Mvura yekudziya nzira inzira yemvura yechikamu synthesis nzira, inoreva kuita kwemakemikari mumudziyo wakavharwa wekumanikidza mumudziyo wakavharwa wekumanikidza, uye inogadziriswa kemikari neyakagadzirwa, yakashambidzwa nekusefa, kuomeswa mushure mekuoma. Lithium iron phosphate inogona kuwanikwa mushure mekupisa kwakanyanya kuverengerwa. Kugadzirira kweferrite mune hydrothermal nzira ine zvakanakira kudzora nyore kwekristalline fomu uye particle size, avhareji chidimbu dhayamita, diki diki dhayamita, iri nyore maitiro, asi inoda yakanyanya tembiricha uye yakanyanya kumanikidza michina, mutengo wakakwira, wakaoma maitiro akaomarara.

Pamusoro peiyo nzira iri pamusoro apa, kune yakajairika nzira yekunaya, sol-gel nzira, oxidative-reduction method, emulsified drying method, uye microwave sintering nzira. 4. Pfupiso Kunyangwe iyo nzira yekugadzirira yelithium iron phosphate yakawanda, kunze kweiyo yakanyanya tembiricha yakasimba chikamu chekuita nzira, yakawanda yerabhoritari yekutsvaga nhanho.

Nekuenderera mberi nekudzika kwekugadzirira phosphate uye kugadziridzwa, iyo indasitiri yekumhanyisa yeferrite phosphate inogara ichiwedzera. Kuti udzidze kufambira mberi kweiyo yazvino lithium iron-ion bhatiri yakanaka zvinhu, ndapota sainira iyo 2017 Energy Particle Material Kugadzirira uye Testing Technology Semina paGumiguru 16-17! Panguva iyoyo, Muzvinafundo, Muzvinafundo, Hu Guorong, Central South University, achagovera chirevo che "Lithium-Ion Battery Positive Code Material Lithium Lithium Lithium Industrialization". Mutevedzeri Mukuru weInstitute of Metallurgy and Environment, Central South University, Mutevedzeri Mukuru weInstitute of Technology, Dhipatimendi reBattery Advanced, Dhipatimendi reUinjiniya, China, China Chemistry uye Physical Power Association, China Lithium Battery Association, International Power Supply Commission, Lithium Battery Communication Committee.

Kunyanya kuita zve electrochemical theory uye mashandisiro, simba zvekushandisa uye zvimwe zvinhu, uye yakawana mhedzisiro inobuda mukusimudzira uye indasitiri ye lithium-ion bhatiri positive electrode zvinhu. Bata uye utore chikamu mune anopfuura makumi maviri enyika uye purovhinzi-chikamu chekutsvaga mapurojekiti esainzi, kusanganisira chirongwa chakakosha chekusimudzira maindasitiri eNational Development and Reform Commission, imwe yeNational Science neTekinoroji Dhipatimendi re863, ine basa renyika resainzi uye tekinoroji chirongwa chekutsigira chirongwa, chirongwa chenyika chemwenje. Mhedzisiro yakabuda muindasitiri yelithium-ion bhatiri positive electrode zvinhu, uye nekubudirira kuona lithium cobalt organism, lithium manganate uye lithium iron phosphate.

Nezve 2017 Energy Granular Material Preparation uye Testing Technology Semina Musangano uyu une chinangwa chekupa nzvimbo dzekukurukurirana kune nyanzvi dzakakosha kumba nekune dzimwe nyika, mukushandiswa kwesimba granules, kusimbisa indasitiri yeruzivo rwekuchinjana, lithium bhatiri, capacitor, mafuta cell , Electric mota bhatiri tekinoroji kubudirira kuita mipiro. Murongi: China Particle Society Energy Granular Materials Committee, China Powdered Network Association Unit: Nuremberg Exhibition (Shanghai) Co., Ltd.

Zvikamu zvinotsigirwa: Kawaguklang (Shanghai) Powder Machinery Co., Ltd., Dandong Baite Instrument Co.

, Ltd. Jiangsu Miyou Powder New Equipment Manufacturing Co., Ltd.

Support Unit: Ningbo Materials Technology uye Engineering Institute, Chinese Academy of Sciences, Institute of Process Engineering, Tsinghua University, Institute of Physics, Chinese Academy of Sciences, China Academy of Sciences Dalian Chemical Physics, China Battery Industry Association , China Super Capacitor Industry Alliance, Dongguan Yifu Machinery Technology Co., Ltd., Shijiazhuangment Day Powder Technology Powquip Day.

, Ltd., Jiangsu Highway Intelligent Equipment Co., Ltd.

, Linyi County Chasing RMB Co., Ltd., Guangzhou Zhonghuo Intelligent Equipment Co.

, Ltd. , Shenzhen Boyi Chemical Machinery Co., Ltd.

, Malvin Instrument Co., Ltd., Xinxiang Yangli Machinery Co.

, Ltd. Iko kona yekugadzirira, ongorora zvakanakira uye zvakaipira zvepakati simba zvinhu senge lithium mabhatiri, sodium mabhatiri, supercapacitors, masero emafuta; inoratidzira 3:, semuenzaniso, mashizha matsva emagetsi (akadai se graphene, carbon nanotubes, ternary lithium electrode, sodium ion battery electrodes, Metal lithium) teknolojia uye kushandiswa kwayo mukuchengetedza simba uye kutendeuka maindasitiri; inosimudzira 4: Izvo zvazvino tekinoroji kubudirira kwesimba granules uye vatungamiriri veindasitiri; inoratidzira zvishanu: kuratidzwa uye makonferensi, lithium yemagetsi zvinhu, supercapacitor kugadzira michina, yekuona Technology uye kushandisa imwe-stop kuratidza. Simbisa 6: Project docking.

Emba mabhatiri e-lithium, mabhizinesi ekugadzira lithium-magetsi, mutungamiri mutsva weprojekiti, kubvunzana kwekutenga kubvunzana kubvunzana. .