Electrode nziza yabateri ya lithium-ionni ibikoresho bya lithium fer fosifate, ifite ibyiza byinshi mumikorere yumutekano nubuzima bwinzira.Ibi nibimwe mubimenyetso byingenzi bya tekiniki ya bateri yingufu.Batiri ya Lifepo4 hamwe na 1C yishyuza no gusohora ubuzima bwinzira irashobora kugerwaho inshuro 2000, gucumita ntiguturika, ntabwo byoroshye gutwika no guturika mugihe kirenze.Ibikoresho bya Litiyumu ya fosifate cathode ituma bateri nini ya lithium-ion yoroshye gukoresha murukurikirane.
Litiyumu fer fosifate nkibikoresho bya cathode
Batiri ya Lifepo4 bivuga bateri ya lithium-ion ukoresheje lisiyumu fer fosifate nkibikoresho byiza bya electrode.Ibikoresho byiza bya electrode ya bateri ya lithium-ion ahanini irimo lithium cobaltate, lithium manganate, lithium nickelate, ibikoresho bya ternary, fosifate ya lithium, nibindi nkibyo.Muri byo, lithium cobaltate ni ibikoresho byiza bya electrode ikoreshwa muri bateri nyinshi za lithium-ion.Ihame, lithium fer fosifate nayo ni uburyo bwo gushiramo no gutandukana.Iri hame risa na lithium cobaltate na lithium manganate.
lifepo4 ibyiza bya bateri
1. Kwishyuza cyane no gusohora neza
Batiri ya Lifepo4 ni batiri ya lithium-ion.Intego imwe nyamukuru ni ya bateri yumuriro.Ifite ibyiza byinshi kuri bateri ya NI-MH na Ni-Cd.Batiri ya Lifepo4 ifite umuriro mwinshi kandi isohora neza, kandi uburyo bwo kwishyuza no gusohora bushobora kugera hejuru ya 90% mugihe cyo gusohora, mugihe bateri ya aside-aside iri hafi 80%.
2. lifepo4 bateri ikora neza
Inkunga ya PO muri lithium fer fosifate kristal ihagaze neza kandi iragoye kubora, kandi ntishobora gusenyuka cyangwa gushyuha nka lithium cobaltate cyangwa gukora ibintu bikomeye bya okiside ndetse no mubushyuhe bwinshi cyangwa hejuru cyane, bityo bikagira umutekano mwiza. mubikorwa nyirizina. , agace gato k'icyitegererezo wasangaga gafite ibintu byaka mugupima acupuncture cyangwa mugihe gito, ariko ntihabayeho guturika.Mu igeragezwa rirenze urugero, hakoreshejwe umuriro mwinshi wa voltage wikubye inshuro nyinshi ugereranije n’umuvuduko w’amashanyarazi wakoreshejwe, kandi byagaragaye ko hakiri ibintu biturika.Nubwo bimeze bityo ariko, umutekano wacyo wongeyeho cyane ugereranije na batiri isanzwe ya electrolyte lithium cobalt oxyde.
3. Lifepo4 bateri igihe kirekire
Batiri ya Lifepo4 bivuga bateri ya lithium-ion ukoresheje lisiyumu fer fosifate nkibikoresho byiza bya electrode.Ubuzima burebure burebure bwa aside-aside ifite ubuzima bwikubye inshuro zigera kuri 300, naho hejuru ni inshuro 500.Amashanyarazi ya lithium fer fosifate afite ubuzima bwikubye inshuro zirenga 2000, kandi amafaranga asanzwe (igipimo cyamasaha 5) arashobora gukoreshwa inshuro 2000.Batiyeri nziza ya aside-acide ni "umwaka mushya, umwaka ushize, kubungabunga no kubungabunga igice cyumwaka", kugeza kumyaka 1 ~ 1.5, kandi bateri ya lifepo4 ikoreshwa mubihe bimwe, ubuzima bwa theoretique buzabikora kugera ku myaka 7 ~ 8.Urebye muri rusange, igipimo cyibiciro cyibikorwa ni inshuro zirenga enye za bateri ya aside-aside.Ibisohoka-byinshi birashobora kwishyurwa byihuse kandi bigasohoka hamwe na 2C iri hejuru.Munsi ya charger idasanzwe, bateri irashobora kwishyurwa byuzuye muminota 1.5 yumuriro wa 1.5C, kandi itangira rishobora kugera kuri 2C, ariko bateri ya aside-aside ntigikora.
4. Imikorere yubushyuhe bwiza
Ubushyuhe bwo hejuru bwa fosifate ya lithium irashobora kugera kuri 350 ° C -500 ° C mugihe lithium manganate na lithium cobaltate iri hagati ya 200 ° C. Ubushyuhe bukabije bwo gukora (-20C– + 75C), hamwe nubushyuhe bwo hejuru, fosifate ya lithium. amashanyarazi ashyushye ashobora kugera kuri 350 ° C-500 ° C, mugihe lithium manganate na lithium cobalt oxyde kuri 200 ° C.
5. Batiri ya Lifepo4 Ubushobozi buhanitse
Ifite ubushobozi bunini kuruta bateri zisanzwe (aside-aside, nibindi).Ubushobozi bwa monomer ni 5AH-1000AH.
6. Nta ngaruka zo kwibuka
Batteri zishobora kwishyurwa zikora mubihe bidakunze gusohoka neza, kandi ubushobozi buzahita bugabanuka munsi yubushobozi bwagenwe.Iyi phenomenon yitwa ingaruka yibuka.Kwibuka nka hydride ya nikel-ibyuma na bateri ya nikel-kadmium, ariko bateri ya lifepo4 ntabwo ifite iki kintu, niyo bateri yaba imeze ite, irashobora gukoreshwa hamwe nubushakashatsi, nta mpamvu yo gusohora no kwishyuza.7.Uburemere bwa batiri ya lifepo4
Batiri ya lifepo4 yubushobozi bumwe ni 2/3 byubunini bwa batiri ya aside-aside, naho uburemere ni 1/3 cya batiri ya aside-aside.
8. Lifepo4bitangiza ibidukikije
Ubusanzwe bateri ifatwa nkibidafite ibyuma biremereye ndetse nicyuma kidasanzwe (Bateri ya Ni-MH isaba ibyuma bidasanzwe), idafite uburozi (SGS yemejwe), idahumanya, ikurikije amabwiriza y’iburayi RoHS, ni icyemezo cya batiri kibisi rwose .Kubwibyo, impamvu bateri ya lithium itoneshwa ninganda ahanini ni ibidukikije.Kubwibyo, bateri yashyizwe muri gahunda ya "863" yiterambere ryiterambere ryiterambere ryigihugu mugihe cya "Gahunda yimyaka icumi yimyaka itanu" kandi yabaye umushinga wingenzi wigihugu no gutera inkunga.Ubushinwa bumaze kwinjira muri WTO, ubwinshi bwo kohereza amagare y’amashanyarazi mu Bushinwa buziyongera vuba, kandi amagare y’amashanyarazi yinjira mu Burayi no muri Amerika asabwa kuba afite bateri zidahumanya.Imikorere ya batiri ya lithium-ion iterwa ahanini nibikoresho byiza kandi bibi.Litiyumu fer fosifate ni ibikoresho bya batiri ya lithium yagaragaye gusa mumyaka yashize.Imikorere yumutekano nubuzima bwikigereranyo ntagereranywa nibindi bikoresho.Ibipimo byingenzi bya tekinike ya bateri.Batiri ya Lifepo4 ifite ibyiza byo kutagira uburozi, kutanduza, imikorere myiza yumutekano, ibintu byinshi byibanze, ibiciro biri hasi, nubuzima burebure.Nibikoresho byiza bya cathode kubisekuru bishya byabateri ya lithium-ion.