I loko o ka hale aniani o Lifepo4, ua hoʻopaʻa paʻa ʻia ka atom oxygen i ʻeono mau ʻaoʻao.ʻO PO43-tetraonal a me FEO6 heʻe i hana i ka iwi ākea o ka aniani.Noho ʻo LI a me Fe i ka ʻāpana ma waena o ka heʻe, a ʻo P ka ʻāpana tetraonal.Noho ka FE i ke kihi kihi maʻamau o ka heʻe, a ʻo ka li i ka ʻaoʻao maʻamau o ka heʻe.Hoʻopili ʻia ka heʻe FEO6 i kekahi i kekahi ma ka ʻili BC o ka aniani, a ua hoʻopili ʻia ke ʻano heʻe Li6 ma ka ʻaoʻao B -axis i loko o kahi hale kaulahao.1 Feo6 he'e a me 2 LiO6 he'e a me 1 PO43-tetraonal co-edge.
Ma muli o ka pau ʻole o ka FEO6 co-edge octopus network, ʻaʻole hiki ke hoʻokumu ʻia ka conductivity uila;i ka manawa like, ua kaupalena ʻia ka PO43-tetraon i ka hoʻololi leo o ka lattice, e pili ana i ka dehydration a me ka diffusion uila o LI +, e alakaʻi i ka conductivity uila a me ka diffusion ion o ka LIFEPO4 pono mea waiwai a me ka diffusion o ka ion.He haʻahaʻa loa ka pono.
ʻOi aku ka kiʻekiʻe o ka manaʻo ma mua o ka pākaukau Lifepo4 (e pili ana i 170mAh / g), a ʻo 3.4V ka paepae hoʻokuʻu.LI+E hoʻopaʻa i ka mana ma waena o ka bipolar maikaʻi a me ka maikaʻi ʻole e hoʻokō i ka hoʻouka ʻana a me ka hoʻokuʻu ʻana, a loaʻa ka hopena oxidation i ka wā o ka hoʻouka ʻana.Neʻe ʻo Li+ mai ka pou maikaʻi, hoʻokomo ʻia i loko o ka pou ʻino ma o ka electrolyte, a ua hoʻololi ʻia ka hao mai Fe2+ a i Fe3+, a ua hiki mai ka hopena oxidation.
ʻO ka ʻaoʻao hema o ka pā lithium iron phosphate ka electrode maikaʻi i haku ʻia me nā mea lifpo4 o ka hale ʻoliva, i hoʻopili ʻia i ka electrode maikaʻi o ka pā me ka alumini alumini.Aia ma ka ʻaoʻao ʻākau ka electrode maikaʻi ʻole o ka pākaukau i haku ʻia me ke kalapona (graphite), i hoʻopili ʻia i ka electrode ʻino o ka pahu keleawe me ka pā.Aia ma waenakonu ka diaphragm o ka polymer, kahi e hoʻokaʻawale ai i ka electrode maikaʻi mai ka electrode maikaʻi ʻole.Hiki i nā ion lithium ke lilo i electrons ma o ka diaphragm a ʻaʻole hiki ke hele i ka diaphragm.Hoʻopiʻi ʻia ka pākaukau me nā electrolytes, a ua hoʻopaʻa ʻia ka pākaukau e kahi pūpū metala.
ʻO ka pane ʻana a me ka hoʻokuʻu ʻana o nā pākahi lithium hao phosphate ma waena o Lifepo4 a me FEPO4.I ka wā o ka hoʻouka ʻana, ua hoʻokaʻawale ʻia ka LIFEPO4 mai ka lithium ion a lilo i FEPO4.I ka wā o ka hoʻokuʻu ʻana, ua hoʻokomo ka lithium ion i ka FEPO4 e hana i LIFEPO4.
I ka wā o ka hoʻouka ʻana o ka pākaukau, ua neʻe ʻia nā ion lithium mai nā kristal hao phosphate a i ka ʻili o ke aniani.Ma lalo o ka mana o ke kahua uila, e komo i ka electrolyte, a laila e hele i ka diaphragm, a laila neʻe i ka ʻili o ka aniani graphite ma o ka electrolyte, a laila hoʻokomo ʻia i loko o ka lattice graphite.
I ka manawa like, e kahe ana ka electrode conductive aluminum foil collector electrode i ka electrode maikaʻi, a me ka ʻohi keleawe keleawe e kahe ana ma ka pole pepeiao, kolamu maikaʻi o ka pākaukau, waho kaapuni, nā kolamu electrode maikaʻi ʻole, a me nā pepeiao maikaʻi ʻole i ka electrode ʻino ʻole. a laila kahe i ka litteria negative electrode , E hana i ka hoʻoili electrode maikaʻi ʻole i ke kaulike.Hoʻololi ʻia nā ion Lithium i ka hao phosphate ma hope o ka pau ʻana o ka lithium iron phosphate dehydrated.
Ke hoʻokuʻu ʻia ka pākaukau, hoʻoneʻe ʻia nā ion lithium mai ke aniani graphite, e hoʻokomo i ka electrolyte, a laila hele i ka diaphragm, neʻe i ka ʻili o ka lithium hao phosphate ma o ka electrolyte, a laila hoʻokomo hou i loko o ka latch o ka lithium. hao phosphate.
I ka manawa like, kahe ka ʻohi keleawe keleawe i nā mea uila maikaʻi ʻole o ka meridian uila, ma o ka ʻohi alumini alumini o ka pahu alumini o ka pepeiao polar, ke kolamu maikaʻi ʻole o ka pākaukau, ke kaapuni o waho, ke kolamu pole maikaʻi, a ka pepeiao polar maikaʻi i ka pākaukau.ʻO nā pou maikaʻi Lithium e hoʻokō i ke kaulike kūpono.Hoʻokomo ʻia nā ion Lithium ma hope o nā kristal hao phosphate, a ua hoʻololi ʻia ka hao phosphate i lithium iron phosphate.
Ka manawa hoʻouna: ʻAukake-07-2023