Txoj kev npaj ntawm cov khoom zoo electrode lithium hlau phosphate

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - អ្នកផ្គត់ផ្គង់ស្ថានីយ៍ថាមពលចល័ត

Lithium hlau phosphate muaj nyob rau hauv daim ntawv ntawm phosphate lithium ore nyob rau hauv cov xwm, muaj ib tug orderly olivine qauv. Lithium phosphate chemical molecular mis yog: LIMPO4, qhov twg lithium yog qhov zoo; qhov nruab nrab hlau hlau yog tus nqi zoo; cov phosphate yog qhov tsis zoo peb-nqi, feem ntau siv los ua lithium roj teeb cov khoom zoo. Daim ntawv thov ntawm lithium hlau phosphate roj teeb yog: cov khoom siv hluav taws xob, cov cuab yeej hluav taws xob, lub teeb hluav taws xob tsheb, tsheb loj hluav taws xob, cov khoom siv me me thiab lub zog txawb, suav nrog lithium hlau phosphate nrog lub zog tshiab hluav taws xob tsheb suav txog 45% ntawm tag nrho cov nyiaj phosphite.

Thib ob, lithium hlau phosphate ua cov khoom siv lithium electrode piv rau lwm cov lithium roj teeb cov ntaub ntawv zoo, cov qauv olivine muaj kev nyab xeeb dua, ib puag ncig zoo, pheej yig, mus sij hawm ntev, kev ua haujlwm kub, thiab lwm yam, yog lub zog tshaj lithium ion Ib qho ntawm cov khoom siv roj teeb zoo. Kev nyab xeeb kev ua tau zoo yog ib qho tseem ceeb PO khoom nyob rau hauv high-phosphate crystals, nws yog ib qho nyuaj rau decompose, thiab nws yuav tsis raug structurally vau los yog tsim muaj zog oxides thaum overcharge thiab kub.

Circulating life Ntev lead-acid roj teeb lub neej nyob ib ncig ntawm 300 zaug, kev pab cuam lub neej nyob nruab nrab ntawm 1 thiab 1.5 xyoo. Thiab cov roj teeb lithium hlau phosphate tuaj yeem ncav cuag ntau dua 2,000, theoretically siv lub neej ntawm 7-8 xyoo.

Kev ua haujlwm siab kub yog qhov kub-kub tsis muaj hlau tsis muaj phosphate thermal peaks txog 350 ° C txog 500 ° C, thaum lithium manganganate thiab lithium cobaltate tsuas yog kwv yees li 200 ° C. Ib puag ncig tus phooj ywg lithium hlau phosphate roj teeb feem ntau suav hais tias tsis muaj cov hlau hnyav thiab cov hlau tsis tshua muaj, tsis muaj tshuaj lom, tsis muaj kuab paug, yog lub roj teeb ntsuab ib puag ncig. Tus nqi thiab tso tawm cov txheej txheem ntawm lithium hlau phosphate raws li cov khoom siv electrode zoo sib txawv ntawm lwm cov khoom siv, thiab cov nqi thiab tawm ntawm electrochemical qhia txog ob theem ntawm lithium hlau phosphate, tus nqi thiab tawm cov tshuaj tiv thaiv yog raws li nram no: them cov tshuaj tiv thaiv: Cov tshuaj tiv thaiv tawm: Charge, Li + Los ntawm LifePO4, Fe2 + poob ib qho hluav taws xob rau hauv FE3 +; Thaum tso tawm, Li + embedded hauv hlau phosphite rau LifePo4.

Qhov kev hloov ntawm Li + tshwm sim hauv Lifepo4 / Fepo4 interface, yog li tus nqi thiab kev tawm nkhaus yog tiaj tus, lub peev xwm kuj tseem ruaj khov, haum rau cov khoom siv electrode. Thib peb, kev npaj ntawm lithium hlau phosphate npaj cov khoom xyaw nrog lithium hlau phosphate. Qee qhov chaw lithium, hlau qhov chaw, carbon qhov, thiab phosphorus qhov chaw yog raws li nram no: Kev npaj ntawm lithium hlau phosphate hmoov tuaj yeem cuam tshuam nws cov kev ua tau zoo raws li cov khoom zoo.

Muaj ntau txoj hauv kev rau kev npaj cov lithium hlau phosphate, xws li kub kub khoom theem cov tshuaj tiv thaiv, carbon thermal txo txoj kev, thiab unminerated hydrothermal txoj kev, tshuaj tsuag thermal tov, sol - gel txoj kev, tag nrho los nag txoj kev, thiab lwm yam. 1. High temperature solid phase reaction method high temperature solid phase reaction method yog npaj lithium hlau phosphate yog txoj kev loj hlob tshaj plaws ntawm txoj kev loj hlob tam sim no thiab feem ntau siv txoj kev.

Tom qab cov khoom siv hlau, lithium qhov chaw, phosphorus qhov chaw yog tov nrog ib tug tshuaj meter tshaj uniformly tov, nyob rau hauv ib tug inert cua, thawj sintered 5 mus rau 10 h ntawm ib tug qis kub (300 ~ 350 ° C), thiaj li hais tias cov raw khoom yog pib decomposed, ces nyob rau hauv high kub (600 ~ 800 ° C) liium-200 ° C) hom sintering. phosphate. Cov txheej txheem kub kub txheej txheem kev sib txuas ntawm lithium hlau phosphate txheej txheem yog qhov yooj yim, cov txheej txheem kev npaj tau yooj yim los tswj, qhov tsis zoo yog tias cov siv lead ua loj loj, cov kab uas hla tsis yooj yim los tswj, kev faib khoom tsis sib xws, cov duab kuj tsis sib xws, cov khoom lag luam tsis zoo. 2.

Carbonatic thermal txo txoj kev carbon thermal txo txoj kev yog ntxiv cov pa roj carbon ntau (cov hmoov txhuv nplej siab, sucrose, thiab lwm yam) hauv cov khoom siv raw khoom sib xyaw, feem ntau yog siv ua ke nrog cov khoom kub kub, thiab cov pa roj carbon monoxide tuaj yeem txo Fe3 + hauv kub kub calcination rau Fe2 +, zam cov tshuaj tiv thaiv thaum lub sij hawm cov tshuaj tiv thaiv los ua Fe3 +, kom cov txheej txheem synthesis yog qhov tsim nyog, tab sis lub sij hawm ntev thiab cov tshuaj tiv thaiv. 3.

Txau pyrolysis txau cov tshuaj tua hluav taws kub yog ib txoj hauv kev zoo kom tau txais cov khoom me me thiab cov duab zoo lithium hlau phosphate hmoov. Lub precursor yog inseed ntawm ib tug reactor ntawm 450 mus rau 650 ° C nrog cov cab kuj gas, thiab lithium hlau phosphate yog tau tom qab kub siab. Lub precursor pos huab spherical spherical spheroid npaj los ntawm tshuaj tsuag pyrolysis yog siab, thiab particle loj tis yog uniform.

Tom qab kev kub ntxhov siab, pneumophosphate tau txais. Lithium hlau phosphate sphere yog qhov tsim nyog rau kev nce qhov chaw tshwj xeeb ntawm cov khoom siv, ua kom lub ntim piv zog ntawm cov khoom siv. 4.

Txoj kev ua cua sov yog cov theem ua kua, hais txog kev siv hluav taws xob hauv lub nkoj uas tau sib khi, ntxuav los ntawm kev lim dej, ntxuav los ntawm kev lim dej, ziab tom qab ziab. Lithium hlau phosphate tuaj yeem tau txais tom qab kub kub yog calcined. Kev npaj ntawm ferrite nyob rau hauv hydrothermal txoj kev muaj qhov zoo ntawm kev tswj tau yooj yim ntawm crystalline daim ntawv thiab particle loj, nruab nrab particle inch, me me particle inch, yooj yim txheej txheem, tab sis yuav tsum tau kub thiab high-pressure khoom, tus nqi siab, cov txheej txheem nyuaj.

Ntxiv nrog rau cov txheej txheem saum toj no, muaj cov txheej txheem nag lossis daus, sol-gel txoj kev, oxidative-txo txoj kev, emulsified drying method, thiab microwave sintering method. 4. Summary Txawm hais tias txoj kev npaj ntawm lithium hlau phosphate yog ntau npaum li cas, tshwj tsis yog rau cov txheej txheem kub kub ntawm cov txheej txheem tshuaj tiv thaiv, feem ntau ntawm kev tshawb fawb theem.

Nrog rau kev sib sib zog nqus ntxiv ntawm phosphate npaj thiab hloov kho, kev lag luam ceev ntawm ferrite phosphate yog tas li nrawm. Txhawm rau kawm txog kev nce qib ntawm lithium hlau-ion roj teeb cov khoom siv zoo, thov sau npe rau xyoo 2017 Energy Particle Material Preparation and Testing Technology Seminar thaum Lub Kaum Hli 16-17! Lub sijhawm ntawd, xibfwb, tus xibfwb, Hu Guorong, Central South University, yuav qhia txog "Lithium-Ion Battery Positive Code Material Lithium Lithium Lithium Industrialization". Tus Lwm Thawj Coj ntawm Lub Tsev Kawm Ntawv ntawm Metallurgy thiab Ib puag ncig, Central South University, Tus Lwm Thawj Coj ntawm Lub Tsev Kawm Txuj Ci Technology, Department of Advanced Battery, Department of Engineering, Tuam Tshoj, Tuam Tshoj Chemistry thiab Physical Power Association, Tuam Tshoj Lithium Battery Association, International Power Supply Commission, Lithium Battery Communication Committee.

Feem ntau koom nrog electrochemical txoj kev xav thiab daim ntawv thov, cov khoom siv hluav taws xob thiab lwm yam, thiab tau ua tiav cov txiaj ntsig hauv kev txhim kho thiab kev lag luam ntawm lithium-ion roj teeb zoo electrode cov ntaub ntawv. Tuav thiab koom nrog ntau tshaj 20 lub teb chaws thiab lub xeev-theem kev tshawb fawb txog kev tshawb fawb, suav nrog ib txoj haujlwm tshwj xeeb ntawm kev lag luam loj ntawm National Development thiab Reform Commission, ib qho ntawm National Science thiab Technology Department ntawm 863, yog lub luag haujlwm rau lub teb chaws kev tshawb fawb thiab thev naus laus zis phiaj xwm phiaj xwm, phiaj xwm phiaj xwm hluav taws xob hauv teb chaws thiab ntau yam tseem ceeb ntawm kev tshawb fawb thiab thev naus laus zis hauv Hunan Province. Cov txiaj ntsig tau tshwm sim tau ua tiav hauv kev lag luam ntawm lithium-ion roj teeb zoo electrode cov ntaub ntawv, thiab ua tiav cov khoom siv lithium cobalt, lithium manganate thiab lithium hlau phosphate.

Hais txog 2017 Energy Granular Material Preparation and Testing Technology Seminar Lub rooj sib tham no yog lub hom phiaj los muab kev sib txuas lus platform rau cov kws tshawb fawb tseem ceeb hauv tsev thiab txawv teb chaws, hauv kev siv lub zog granules, ntxiv dag zog rau kev lag luam cov ntaub ntawv sib pauv, lithium roj teeb, capacitor, roj cell, hluav taws xob tsheb roj teeb technology breakthrough ua kev koom tes. Organizer: Tuam Tshoj Particle Society Energy Granular Materials Committee, Tuam Tshoj Powdered Network Association Unit: Nuremberg Exhibition (Shanghai) Co., Ltd.

Cov chaw txhawb nqa: Kawaguklang (Shanghai) Powder Machinery Co., Ltd., Dandong Baite Instrument Co.

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

Support Unit: Ningbo Materials Technology and Engineering Institute, Suav Academy of Sciences, Lub Tsev Kawm Ntawv ntawm Txheej Txheem Engineering, Tsinghua University, Lub Tsev Kawm Ntawv ntawm Physics, Suav Academy ntawm Kev Tshawb Fawb, Tuam Tshoj Academy of Sciences Dalian Chemical Physics, Tuam Tshoj Roj Teeb Kev Lag Luam Association, Tuam Tshoj Super Capacitor Kev Lag Luam Alliance, Dongguan Yifu Machinery Technology Co., Ltd., Shijiazhuang Hnub Powder Equipment

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

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

, Ltd. Shenzhen Boyi Tshuaj Machinery Co., Ltd.

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

, Ltd. Lub kaum sab xis ntawm kev npaj, tshuaj xyuas qhov zoo thiab qhov tsis zoo ntawm cov khoom siv hluav taws xob tseem ceeb xws li lithium roj teeb, roj teeb sodium, supercapacitors, roj hlwb; highlights 3:, piv txwv li, tshiab zog hais (xws li graphene, carbon nanotubes, ternary lithium electrode, sodium ion roj teeb electrodes, Hlau lithium) technology thiab nws daim ntawv thov nyob rau hauv lub zog cia thiab hloov dua siab tshiab industries; highlights 4: Qhov tseeb technical achievements ntawm lub zog granules thiab kev lag luam cov thawj coj; highlights tsib: exhibitions thiab rooj sab laj, lithium hluav taws xob cov ntaub ntawv, supercapacitor manufacturing khoom, nrhiav kom tau Technology thiab daim ntawv thov ib-nres zaub. Teebmeem 6: Qhov project docking.

Cov roj teeb lithium hauv tsev, cov khoom siv hluav taws xob lithium-hluav taws xob tsim khoom lag luam, tus thawj coj tshiab, kev yuav khoom kev sib tham kev sib tham kev sib tham. .