Electrode nziza yabateri za lithiamu-iyonini ibikoresho bya lithium iron phosphate, bifite inyungu nini mu mikorere myiza no mu gihe cy'uruziga. Ibi ni bimwe mu bimenyetso by'ingenzi bya tekiniki bya bateri y'ingufu. Bateri ya Lifepo4 ifite igihe cyo gusharija no gusohora umuriro wa 1C ishobora kugerwaho inshuro 2000, gupfunyika ntiguturika, ntabwo byoroshye gutwika no guturika iyo ishyushye cyane. Ibikoresho bya Lithium iron phosphate cathode bituma bateri nini za lithium-ion zoroshye gukoresha mu buryo bukurikiranye.
Fosfeti y'icyuma ya Lithium nk'ibikoresho bya cathode
Bateri ya Lifepo4 yerekeza kuri bateri ya lithium-ion ikoresha fosfeti ya lithium iron nk'ibikoresho bya electrode nziza. Ibikoresho bya electrode nziza bya bateri za lithium-ion ahanini birimo lithium cobalt, lithium manganate, lithium nickellate, ibikoresho bya ternary, lithium iron phosphate, n'ibindi nk'ibyo. Muri byo, lithium cobaltate ni ibikoresho bya electrode nziza bikoreshwa muri bateri nyinshi za lithium-ion. Muri rusange, fosfeti ya lithium iron nayo ni inzira yo gushyiramo no gukuramo. Iri hame risa na lithium cobalt na lithium manganate.
Ibyiza bya bateri ya lifepo4
1. Gukoresha amashanyarazi menshi no kuyasohora neza
Bateri ya Lifepo4 ni bateri ya kabiri ya lithium-ion. Intego imwe nyamukuru ni iyo gukoresha bateri zikoresha ingufu. Ifite inyungu nyinshi kurusha bateri za NI-MH na Ni-Cd. Bateri ya Lifepo4 ifite umuriro mwinshi kandi isohora neza, kandi amashanyarazi n'ubushobozi bwo gusohora bishobora kugera kuri 90% iyo bisohotse, mu gihe bateri ya aside ya lead iri hafi 80%.
2. Bateri ya lifepo4 ifite umutekano mwinshi
Ihuriro rya PO muri kristale ya fosfeti ya lithium irahamye kandi iragoye kubora, kandi ntirisenyuka cyangwa ngo rishyuhe nka cobalt ya lithium cyangwa ngo rikore ogisijeni ikomeye ndetse no mu bushyuhe bwinshi cyangwa umuriro mwinshi, bityo rikagira umutekano mwiza. Mu gikorwa nyacyo, igice gito cy'icyitegererezo cyagaragaye ko gifite ikintu gitwika mu isuzuma rya acupuncture cyangwa short-circuit, ariko nta kintu cyabaye. Mu igerageza rya overcharge, hakoreshejwe voltage nyinshi iruta voltage yigenga inshuro nyinshi, kandi byagaragaye ko hakiri explosion. Nyamara, umutekano wayo wo hejuru warushijeho kuba mwiza ugereranije na bateri isanzwe ya electrolyte lithium cobalt oxide.
3. Bateri ya Lifepo4 imara igihe kirekire
Bateri ya Lifepo4 yerekeza kuri bateri ya lithium-ion ikoresha fosfeti ya lithium iron nk'igikoresho cyiza cya electrode. Bateri ya lead-acid imara igihe kirekire ifite ubuzima bwo kuzenguruka inshuro zigera kuri 300, naho ihanitse ni inshuro 500. Bateri ya lithium iron phosphate ifite ubuzima bwo kuzenguruka inshuro zirenga 2000, kandi charge isanzwe (igipimo cy'amasaha 5) ishobora gukoreshwa inshuro zigera kuri 2000. Bateri ya lead-acid nziza ni "iy'igice gishya cy'umwaka, igice cy'umwaka, yo kubungabunga no kubungabunga mu gihe cy'igice cy'umwaka", kugeza ku myaka 1 ~ 1.5, kandi bateri ya lifepo4 ikoreshwa mu bihe bimwe, ubuzima bwo mu bitekerezo buzagera ku myaka 7 ~ 8. Urebye neza, igipimo cy'igiciro cy'imikorere mu buryo bwa teorite ni inshuro zirenga enye ugereranyije na bateri ya lead-acid. Isohoka ry'umuvuduko mwinshi rishobora kwishyuzwa vuba kandi rigasohoka hakoreshejwe 2C nyinshi. Munsi y'ishajara yihariye, bateri ishobora kwishyuzwa yuzuye mu minota 1.5 nyuma yo kwishyuzwa kwa 1.5C, kandi starting power rishobora kugera kuri 2C, ariko bateri ya lead-acid nta buryo ikora.
4. Ubushyuhe bukora neza
Ubushyuhe bwinshi bwa fosfeti ya lithiamu bushobora kugera kuri 350 ° C -500 ° C mu gihe fosfeti ya lithiamu manganate na fosfeti ya lithiamu biri hafi ya 200 ° C gusa. Ubushyuhe bwinshi bukoreshwa (-20C–+75C), hamwe n’ubushyuhe bwinshi, fosfeti ya lithiamu manganate y’amashanyarazi ishobora kugera kuri 350 ° C-500 ° C, mu gihe fosfeti ya lithiamu manganate na fosfeti ya lithiamu cobalt iri kuri 200 ° C gusa.
5. Bateri ya Lifepo4 ifite ubushobozi bwo hejuru
Ifite ubushobozi bunini kurusha batiri zisanzwe (aside y'icyitegererezo, nibindi). Ubushobozi bwa monomer ni 5AH-1000AH.
6. Nta ngaruka zo kwibuka
Bateri zishobora kongera gusharijwa zikora mu bihe bidakunze kurangira neza, kandi ubushobozi buzamanuka vuba munsi y’ubushobozi busanzwe. Iki kintu cyitwa ingaruka zo kwibuka. Memory nka nickel-metal hydride na nickel-cadmium bateri, ariko bateri ya lifepo4 ntabwo ifite iki kintu, uko bateri yaba iri kose, ishobora gukoreshwa hamwe n’ishari, nta mpamvu yo kuyisohora no kuyishyushya. 7. Bateri yoroheje ya lifepo4
Bateri ya lifepo4 ifite ubushobozi bumwe bwo kuyipima ni 2/3 by'ingano ya bateri ya aside y'icyitegererezo, kandi uburemere bwayo ni 1/3 by'ingano ya bateri ya aside y'icyitegererezo.
8. Bateri za Lifepo4bita ku bidukikije
Bateri muri rusange ifatwa nk'aho idafite ibyuma biremereye n'ibyuma bidasanzwe (bateri za Ni-MH zisaba ibyuma bidasanzwe), idahumanya (yemejwe na SGS), idahumanya, hakurikijwe amabwiriza ya RoHS y'i Burayi, ni icyemezo cy'icyatsi kibisi. Kubwibyo, impamvu bateri za lithiamu zikundwa n'inganda ahanini ni ukwita ku bidukikije. Kubwibyo, bateri yashyizwe muri gahunda y'iterambere ry'ikoranabuhanga rihanitse rya "863" mu gihe cya "Gahunda ya Cumi y'imyaka itanu" kandi yabaye umushinga w'igihugu wo gushyigikira no gushishikariza. Kubera ko Ubushinwa bwinjiye muri WTO, ingano y'amagare y'amashanyarazi yoherezwa mu mahanga mu Bushinwa iziyongera vuba, kandi amagare y'amashanyarazi yinjira mu Burayi na Leta Zunze Ubumwe za Amerika byasabwe ko ashyirwaho bateri zitahumanya. Imikorere ya bateri ya lithiamu-ion ishingiye ahanini ku bikoresho byiza n'ibibi. Phosphate y'icyuma ya Lithium ni ibikoresho bya bateri ya lithiamu byagaragaye gusa mu myaka ya vuba aha. Imikorere yayo y'umutekano n'igihe cy'ubuzima ntagereranywa n'ibindi bikoresho. Ibipimo by'ingenzi bya tekiniki bya bateri. Bateri ya Lifepo4 ifite ibyiza byo kudahumanya, kudahumanya ikirere, gukora neza mu mutekano, ibikoresho bitandukanye, ibiciro biri hasi, no kuramba. Ni ibikoresho byiza bya cathode ku gisekuru gishya cyabateri za lithiamu-iyoni.