Lithium simbi phosphate bhatiri: hunhu, kushanda

Modern zvokushandisa ose zuva iri kuramba ichiva akaoma uye simba. High Michina mitemo kuti matunhu zvinodiwa kuti mabhatiri kuti ikozvino tinofanira chokubatanidza dzakakwirira chaitwa, simba kushanda zvakanaka, uye vane yakawedzerwa Magetsi.

Pakatanga pakubhadhara itsva magetsi kugadzirwa, kuwedzera kwezvinhu muitiro - izvi zvose kunowedzera nemagetsi vade, uye mabhatiri ano handichisiri nguva dzose kunogona kusangana navo. Kuti vagadzirise dambudziko iri, vagadziri vakasarudza kuvandudzwa lithium-Ion michina. Saka akaberekwa ari lithium simbi phosphate bhatiri (LiFePO4), inova Pfungwa muzukuru Li-Ion mabhatiri.

nhoroondo mashoko

LiFePO4, kana LFP, - dzinongoitika chicherwa olivine mhuri, yakatanga yakawanikwa 1996 nemasayendisiti kubva University of Texas, John Goodenough, akanga achitsvaka nzira kuvandudza Li-Ion simba zvinyorwa. Chinozikamwa ndechokuti zvicherwa ane yakaderera toxicity uye wakakwirira chafariz kugadzikana kupfuura chinhu anozivikanwa panguva electrodes.

Kunze kwayo yaisangana dzinongoitika zvakatipoteredza, uye aiva mari yakaderera. The chikuru drawback pamusoro electrodes nemhaka LiFePO4 aiva duku yemagetsi kukwanisa, ndokusaka lithium simbi phosphate bhatiri Haasisina kugadzirwa.

Research mune mirayiridzo iyi vakanga vakatangazve 2003 panguva Massachusetts Institute of Technology. Boka masayendisiti kushanda pakasikwa bhatiri vangasimudzira itsva kuti aizova kutsiva zvemberi panguva iyoyo, Li-Ion mabhatiri. The chirongwa aifarira guru makambani akadai Motorola uye Qualcomm vake, zvakauyiswa kwaita bhatiri pamwe LiFePO4 cathode zvinhu.

LiFePO4 bhatiri pahwaro

Izvi mhando mabhatiri anoshandisa chete Michina kubereka magetsi, uye zvatinosiita lithium-Ion masero kwatiri. Zvisinei, pane vakawanda Misiyano pakati pavo. Chokutanga, ndiko kushandisa yayo mhando BMS - utariri hurongwa chinodzivirira yemagetsi bhatiri kubva overcharging uye rakadzika zvinoerera, kunonatsiridza mukurumari uye kunoita simba panobva yakatsiga zvikuru.

Chechipiri, LiFePO4, kusafanana LiCoO2, iduku muchetura. Izvi akabvumira kudzivisa zvimwe zvinetso chokuita kushatiswa kwezvakatipoteredza. Zvikurukuru kuderedza cobalt choutsi nokuda kukodzera Kuraswa mabhatiri.

Pakupedzisira, nokuda kwekushaiwa rakabatana mitemo LFP zvinhu dzakasiyana namakemikari nziyo, izvo chinoita kushanduka Performance yokutevedzera pamusoro-siyana. Uyezve, izvi simba rinopiwa kuvariritira kuoma uye zvinofanira kuitwa uchiwirirana nemimwe mirayiro.

rwokugadzira unhu

Zvinonzi lithium simbi phosphate bhatiri 48 volts, 36 volts uye 60 volts anobudiswa neZvapupu sequentially interconnecting masero chete, nokuti kunonyanyisa voltage rimwe LFP-chikamu anogona haapfuuri 3,65 V. Saka, chokupika nomumwe bhatiri gona yekudyidzana usiyane mumwe - zvose zvinoenderana ungano uye zvikurukuru makemikari anoumba.

Nokuti ongororo Performance kupa chezita ukoshi sero rimwe chete.

The yakanakisisa Kuzadziswa aikwanisa foni mumwe nomumwe ari bhatiri kwave asvika Everexceed. Lithium simbi phosphate bhatiri Everexceed akasiyana upenyu hurefu. All vanogona kumira kusvika 4 zviuru. Charge-iyeye zvinogara vane kurasikirwa kukwanisa anosvika 20%, uye replenishment hwesimba okuchengetera kunoitika mumaminitsi 12. Akapiwa izvi, tinogona kugumisa kuti Everexceed mabhatiri tiri mumwe yakanakisisa vamiririri LFP-zvinhu.

Zvakanakira nekuipira

The chikuru kushandisa kuti mune chiedza zvakanaka inoratidza lithium simbi phosphate bhatiri, pakati pezvimwe vamiririri CRA, ndiye hurefu. Akadaro chinhu anokwanisa kumira vanopfuura zviuru 3 mutariri-iyeye zvinogara ari simba pamwero anodonhedza kusvika 30%, uye vanopfuura zviuru 2 - .. Kana kwakadonha 20%. Nokuda kwaizvozvi avhareji bhatiri upenyu anenge makore 7.

Kugadzikana uchiraira Kuyerera rinokosha mukana LFP-zvinhu wechipiri. The goho voltage anoramba akaenzana 3.2 V kusvikira mhosva ndiye vaneta zvachose. Izvi huve nyore kuti wiring, kubvisa kudiwa voltage regulators.

Higher yepamusoro razvino - chetatu zvakavanakira. chinhu ichi zvinoita bhatiri kuvapa kunonyanyisa simba kunyange panguva yakaderera chaizvo tembiricha. pfuma iyi chakaita motokari vagadziri kushandisa lithium simbi phosphate bhatiri sezvo chikuru simba panobva kana kutanga peturu uye Diesel injini.

Pamwe zvose zvazvakanakira, LiFePO4 mabhatiri chimwe nemhinganidzo yakakura - vakawanda guru uye miganhu. Izvi ichikutadzisa kushandisa kwavo mamwe michina uye magetsi.

Features kushanda

Kana ukatenga wakagadzirira akagadzirwa lithium-phosphate mabhatiri, nematambudziko pamwe kwerunyararo uye kushanda Hauzovi. Totenda kuti Vagadziri vari rakapinzwa yakadaro zvinhu BMS bhodhi kuti overcharging kudzivirira uye kudzivirira kubuda chinhu kusvika rakadzika padanho.

Asi kana imi kutenga masero pachako (penlight mabhatiri, somuenzaniso), ipapo unofanira kuchengeta ziso bhatiri simba chete. Kana mutariri anodonhedza pazasi dzinonetsa pamwero (2.00 V pazasi) achaita nokukurumidza kuwira uye capacitance, zvichiita zvisingabviri recharge masero. Kana iwe, uri nekusiyana, anofanira overcharged (pamusoro 3.75 V), sero anongotaura bulges nokuda magasi kusunungurwa.

Kana uri kushandisa bhatiri chakadaro chive motokari yemagetsi, pashure 100% kuchaja unofanira patsanura kuti bhatiri mundiro. Zvikasadaro, kuti bhatiri wakazara nokuda supersaturation kuti electrocution.

uchishandisa mitemo

Kana uchironga kushandisa lithium-phosphate mabhatiri mu cyclic rudzi uye vari buffer Somuenzaniso, seinokonzera simba kupota kana pachiimbwa solar bhatiri, unofanira kutarisira achideredza chechetere mubhadharo 3.40-3.45 V. kutsungirira basa iri rinobatsira 'akangwara' Ndiro kuti yaibva pakutanga zvakazara aripire nerubatsiro simba, uye ipapo kudzikisa kunetseka revarombo.

Panguva oparesheni, unofanira kuongorora pakuenzanisa masero kana kushandisa chinokosha BALANCInG mubhadharo (ari bhatiri, vari Yakavakirwa motokari yemagetsi). Sero kusaenzana inonzi ezvinhu akadaro, kana zvachose voltage ari mudziyo iri chezita sandara, asi sero voltage anova yakasiyana.

Fani iyi imhaka musiyano pakati resistances nomunhu zvikamu, murombo kuonana therebetween. Kana masero vane voltages zvakasiyana, uye avo gogonera mutariri-zvinoerera, izvo yekudyidzana akazoita upenyu basa bhatiri.

Kuisa bhatiri kushanda

Asati kushandisa lithium phosphate mabhatiri vakaungana kubva muzvitokisi, hanya anofanira kutorwa BALANCInG hurongwa, sezvo zvikamu zvinogona kuva zvakasiyana mutariri pamwero. Nokuti chinangwa ichi zvinoriumba vose zvakafanana vari interconnected uye zvakabatana rectifier, mundiro. United saizvozvi Zvakakodzera kurayira sero kusvika 3,6 V.

Kushandisa bhatiri lithium simbi phosphate nokuda yemagetsi bhasikoro, iwe zvichida wakaona kuti ari maminitsi bhatiri rokutanga anopa kunonyanyisa simba, uye ipapo nokukurumidza mhosva iri richidonhera pachiyero 3.3-3.0 V. Usatya izvi, nekuti ndicho chakaipa nokushanda bhatiri . Chokwadi kuti akawanda pakukwanisa kwayo (anenge 90%) iri Range ichi.

mhedziso

Kunyatsoshanda lithium-phosphate mabhatiri ndiyo 20-30% yakakwirira kupfuura dzimwe mabhatiri. Panguva iyoyo vari kwemakore 2-3 refu kupfuura vamwe manyuko simba, uyewo kupa akatsiga kuitika pamusoro nguva yose kushanda. izvi zvose Chinosimbisa okunze akapa mune chiedza zvakanaka.

Zvisinei, vanhu vakawanda vachange hanya uye lithium simbi phosphate bhatiri. Zvayakanakira nezvayakaipira kuti bhatiri hapana vasati mutengo wavo - zviri 5-6 nguva kupfuura zvatinosiita kwatiri kutungamirira-asidhi masero. Izvi motokari bhatiri kunodyira avhareji vanenge 26 zviuru. Rubles.