Lebitso le felletseng la betri ea lithium iron phosphate ke lithium iron phosphate lithium ion battery, e bolelang betri ea lithium ion e sebelisang lithium iron phosphate e le thepa e ntle ea electrode. Ho na le mefuta e mengata ea lisebelisoa tsa cathode bakeng sa libeteri tsa lithium-ion, haholo-holo lithium cobalt oxide, lithium manganate, lithium nickelate, lisebelisoa tsa ternary, lithium iron phosphate joalo-joalo. Har’a bona, lithium cobalt oxide hona joale ke thepa ea cathode e sebelisoang ka libeteri tse ngata tsa lithium-ion, ha lisebelisoa tse ling tsa cathode ha li e-s’o hlahisoe ka bongata ‘marakeng ka lebaka la mabaka a sa tšoaneng. Lithium iron phosphate le eona ke e ‘ngoe ea libeteri tsa lithium-ion. Mabapi le molao-motheo oa thepa, lithium iron phosphate e boetse ke mokhoa oa ho kopanya / deintercalation, o ts’oanang hantle le lithium cobaltate le lithium manganate.

Libetri tsa lithium iron phosphate ke libeteri tsa bobeli tsa lithium-ion. E ‘ngoe ea litšebeliso tsa eona tsa mantlha ke betri ea matla. E na le melemo e meholo ho feta libeteri tsa NI-MH le Ni-Cd.

sebelisa hamolemo libaka tseo

1. Ntlafatso ea ts’ebetso ea ts’ireletso

The PO bond ho lithium iron phosphate crystal e tsitsitse ebile ho thata ho senyeha. Esita le mocheso o phahameng kapa ho feta tekano, e ke ke ea oa ‘me ea hlahisa mocheso o kang lithium cobalt oxide kapa ho etsa lintho tse matla tsa oxidizing, kahoo e na le tšireletso e ntle. Tlaleho e bontšitse hore ts’ebetsong ea sebele ea liteko tsa acupuncture kapa tsa potoloho e khutšoanyane, karolo e nyenyane ea lisampole e ile ea fumanoa e chesa, empa ha ho ho phatloha ho ileng ha etsahala. Tekong ea ho chaja ho feta tekano, ho ile ha sebelisoa motlakase o phahameng oa motlakase o neng o phahame ka makhetlo a ‘maloa ho feta oa motlakase oa ho itšehla thajana, ‘me ho ile ha fumanoa hore ho ntse ho e-na le ketsahalo ea Ho phatloha. Leha ho le joalo, polokeho ea eona ea ho tjhaja e ntlafalitsoe haholo ha e bapisoa le libeteri tse tloaelehileng tsa electrolyte lithium cobalt oxide.

2, ntlafatso ea nako ea bophelo

“Lithium iron phosphate battery” e bolela betri ea lithium ion e sebelisang lithium iron phosphate e le lisebelisoa tse ntle tsa electrode.

Bophelo ba potoloho ea betri ea lead-acid ea nako e telele ke makhetlo a ka bang 300, ‘me e phahameng ka ho fetisisa ke makhetlo a 500, athe betri ea matla a lithium iron phosphate e na le bophelo ba potoloho ea makhetlo a fetang 2000,’ me e ka sebelisoa ka makhetlo a 2000 le tefiso e tloaelehileng (tekanyo ea lihora tse 5). Libetri tsa lead-acid tsa boleng bo tšoanang ke “halofo ea selemo e ncha, halofo ea selemo, le halofo ea selemo bakeng sa tlhokomelo”, e ka nkang lilemo tse 1 ho isa ho tse 1.5. Ha li sebelisoa tlas’a maemo a tšoanang, libeteri tsa lithium iron phosphate li na le bophelo ba khopolo ea lilemo tse 7 ho isa ho tse 8. Ho nahanoa ka botlalo, karo-karolelano ea theko ea ts’ebetso e feta makhetlo a 4 ho feta ea libeteri tsa asiti ea lead. Phokotso e phahameng ea hona joale e ka tjhaja kapele mme ya ntsha 2C ya hona jwale e phahameng. Ka tjhaja e inehetseng, betri e ka tjhajwa ka botlalo nakong ya metsotso e 40 ya ho tjhaja 1.5C, mme jwale ya ho qala e ka fihla ho 2C, empa dibetri tsa lead-acid ha di na tshebetso e jwalo.

3, ts’ebetso e ntle ea mocheso o phahameng

Tlhōrō ea mocheso oa motlakase oa lithium iron phosphate e ka fihla ho 350 ℃-500 ℃, ha lithium manganate le lithium cobaltate li ka ba 200 ℃ feela. Mefuta e mengata ea mocheso oa mocheso (-20C-75C), e nang le khanyetso e phahameng ea mocheso, lithium iron phosphate electric futhumala tlhoro e ka fihla ho 350 ℃-500 ℃, athe lithium manganate le lithium cobaltate li haufi le 200 ℃ feela.

4, bokhoni bo boholo

∩Bophahamo ba libeteri tse ka tjhajwang bo tla ba tlase kapele ho feta tekanyo e reriloeng ha hangata li tjhajiloe ka botlalo empa li sa lokolloe. Ketsahalo ena e bitsoa “memory effect”. Joalo ka libeteri tsa nickel-metal hydride le nickel-cadmium, ho na le mohopolo, empa libeteri tsa lithium iron phosphate ha li na ketsahalo ena. Ho sa tsotellehe hore na betri e boemong bofe, e ka tjhajwa le ho sebediswa ntle le ho e tjhaja pele.

6, boima bo bobebe

Bophahamo ba betri ea lithium iron phosphate ea sebopeho le matla a tšoanang ke 2/3 ea bophahamo ba betri ea lead-acid, ‘me boima ke 1/3 ea betri ea lead-acid.

7, Ts’ireletso ea tikoloho

Libetri tsa Lithium iron phosphate hangata li nkuoa li se na litšepe tse boima le litšepe tse sa tloaelehang (betri ea nickel-hydrogen e hloka litšepe tse sa tloaelehang), e seng chefo (e netefalitsoeng ke SGS), e sa silafatsang, ho latela melao ea RoHS ea Europe, le botala bo felletseng. setifikeiti sa betri. Ka hona, lebaka leo ka lona libetri tsa lithium li ratoang ke indasteri haholo-holo ka lebaka la menahano ea ts’ireletso ea tikoloho. Ka hona, betri e kenyelelitsoe morerong oa naha oa “863” oa nts’etsopele ea theknoloji e phahameng nakong ea “Leano la Lilemo tse Hlano” ‘me e fetohile morero oa bohlokoa oa naha oa tšehetso le khothatso. Ka ho kena ha China ho WTO, palo ea libaesekele tsa motlakase tsa China e tla eketseha ka potlako, ‘me libaesekele tsa motlakase tse kenang Europe le United States li hlokoa hore li kenngoe libeteri tse se nang tšilafalo.

Empa litsebi tse ling li boletse hore tšilafalo ea tikoloho e bakoang ke libeteri tse nang le asiti ea loto e etsahala haholo-holo tšebetsong e sa tloaelehang ea k’hamphani ea ho hlahisa le ho e sebelisa hape. Ka mokhoa o ts’oanang, libeteri tsa lithium ke tsa indasteri e ncha ea matla, empa e ke ke ea qoba bothata ba tšilafalo ea tšepe e boima. Loto, arsenic, cadmium, mercury, chromium, joalo-joalo ha ho etsoa lisebelisoa tsa tšepe li ka ntšoa hore e be lerole le metsi. Betri ka boeona ke mofuta oa ntho ea lik’hemik’hale, kahoo hoa khoneha ho hlahisa mefuta e ‘meli ea tšilafalo: e’ ngoe ke tšilafalo ea ts’ebetso ea mantle ho boenjiniere ba tlhahiso; e ‘ngoe ke tšilafalo ea betri ka mor’a hore e hlajoe.

Libetri tsa lithium iron phosphate le tsona li na le mefokolo ea tsona: mohlala, ts’ebetso e tlase ea mocheso o tlase, letsoalo le tlase la pompo ea cathode, ‘me bophahamo ba betri ea lithium iron phosphate bo boholo bo lekanang ho feta ba libeteri tsa lithium-ion tse kang lithium. cobalt oxide, ka hona ha e na molemo ho li-betri tse nyane. Ha e sebelisoa ka libeteri tsa matla, libeteri tsa lithium iron phosphate, joalo ka libeteri tse ling, li hloka ho tobana le mathata a ho tsitsa ha betri.