Batire yochita bwino kwambiri:Batire ya lithiamu-ionili ndi zigawo zinayi zazikulu: zinthu zabwino zama elekitirodi, zinthu zopanda ma elekitirodi, olekanitsa, ndi electrolyte.Pakati pawo, olekanitsa ndi chigawo chachikulu chamkatimabatire a lithiamu-ion.Ngakhale sichitenga nawo gawo mwachindunji pamachitidwe a electrochemical, imagwira ntchito yofunika kwambiri pakuchita kwa batri.Sizimangokhudza mphamvu, kayendetsedwe ka kayendetsedwe kake ndi kulipira ndi kutulutsa kachulukidwe ka batri, komanso zokhudzana ndi chitetezo ndi moyo wa batri.batire.Wolekanitsa amasunga ntchito yoyenera ya batri ndi ntchito yake popereka njira zoyendetsera ion, kuteteza kusakaniza kwa electrolyte, ndi kupereka chithandizo chamagetsi.Kuyendetsa kwa ion kwa olekanitsa kumakhudza mwachindunji kuthamanga ndi kutulutsa kuthamanga ndi mphamvu ya batri.Bwino ma ion conductivity amatha kupititsa patsogolo kachulukidwe ka batri.Kuphatikiza apo, ntchito yodzipatula ya electrolyte ya olekanitsa imatsimikizira chitetezo cha batri.Kudzipatula koyenera kwa electrolyte pakati pa ma elekitirodi abwino ndi oyipa kumatha kupewa zovuta zachitetezo monga mabwalo amfupi komanso kutenthedwa.Olekanitsa amafunikanso kukhala ndi mphamvu zamakina abwino komanso kusinthasintha kuti athe kuthana ndi kukulitsa ndi kutsika kwa batri ndikupewa kuwonongeka kwamakina ndi mabwalo amkatikati.Kuonjezera apo, olekanitsa amafunikanso kukhalabe okhazikika komanso okhazikika panthawi yamoyo wa batrikuonetsetsa kuti batire yodalirika ikugwira ntchito kwa nthawi yayitali.Ngakhale kuti olekanitsa satenga nawo mbali pazochitika za electrochemical ya batri, zimakhudza kwambiri zinthu zofunika kwambiri monga mphamvu ya batri, ntchito yozungulira, kuthamanga ndi kuthamanga, chitetezo ndi moyo wautali. .Choncho, chitukuko ndi kukhathamiritsa kwa olekanitsa ndizofunikira kwambiri pa chitukuko ndi kugwiritsa ntchito mabatire a lithiamu-ion.
1. Ntchito yofunikira ya olekanitsa mumabatire a lithiamu-ion
Olekanitsa amagwira ntchito yofunika kwambiri pamabatire a lithiamu-ion.Sizotchinga zakuthupi zokha zomwe zimalekanitsa maelekitirodi abwino ndi oipa, komanso ali ndi ntchito zofunika zotsatirazi:1.Kupatsirana kwa ion: Wolekanitsa ayenera kukhala ndi ntchito yabwino yotumizira ma ion ndikutha kulola ma ion a lithiamu kufalitsa momasuka pakati pa ma elekitirodi abwino ndi oipa.Panthawi imodzimodziyo, wolekanitsa ayenera kuletsa bwino kufalitsa kwa ma electron kuti ateteze maulendo afupikitsa ndi kudziletsa.2.Kusamalira electrolyte: Wolekanitsa ayenera kukhala ndi kukana kwabwino kwa zosungunulira zosungunulira, zomwe zingathe kusunga bwino kugawidwa kwa yunifolomu ya electrolyte pakati pa ma electrode abwino ndi oipa ndikuletsa kutaya kwa electrolyte ndi kusintha kwa ndende.3.Mphamvu zamakina: Wolekanitsa amafunika kukhala ndi mphamvu zokwanira zamakina kuti athe kupirira kupsinjika kwamakina monga kupsinjika, kukulitsa ndi kugwedezeka kwa batri kuti zitsimikizire kukhazikika ndi chitetezo cha batri.4.Kukhazikika kwa kutentha: Wolekanitsa ayenera kukhala ndi kutentha kwabwino kwa kutentha kuti akhalebe okhazikika m'malo otentha kwambiri komanso kuteteza kutentha kwa kutentha ndi kuwonongeka kwa kutentha.5.Kutentha kwamoto: Cholekanitsa chiyenera kukhala ndi kutentha kwamoto, komwe kungathe kuteteza batri ku moto kapena kuphulika pansi pa zochitika zachilendo. (PE), etc. Komanso, magawo monga makulidwe, porosity, ndi pore kukula kwa olekanitsa adzakhudzanso ntchito batire.Chifukwa chake, pokonzekera mabatire a lithiamu-ion, ndikofunikira kwambiri kusankha zida zoyenera zolekanitsa ndikuwongolera kapangidwe kake ka olekanitsa.
2. Udindo waukulu wa olekanitsa mumabatire a lithiamu:
Mu mabatire a lithiamu-ion, olekanitsa amatenga gawo lalikulu ndipo ali ndi ntchito zazikuluzikulu izi:1.ion conduction: olekanitsa amalola ma lithiamu ayoni kuti asamutsidwe pakati pa ma elekitirodi abwino ndi oipa.Olekanitsa nthawi zambiri amakhala ndi ma ionic conductivity apamwamba, omwe amatha kulimbikitsa kuthamanga komanso ngakhale kutuluka kwa ayoni a lithiamu mu batri ndikukwaniritsa kuyitanitsa koyenera komanso kutulutsa batri.2.Chitetezo cha batri: Cholekanitsa chingalepheretse kukhudzana kwachindunji ndi kuzungulira kwafupipafupi pakati pa ma electrode abwino ndi oipa, kupewa kupitirira ndi kutentha mkati mwa batri, ndikupereka chitetezo cha batri.3.Kudzipatula kwa Electrolyte: Cholekanitsa chimalepheretsa mpweya, zonyansa ndi zinthu zina mu electrolyte mu batri kuti zisakanize pakati pa ma electrode abwino ndi oipa, kupeŵa zochitika zosafunika za mankhwala ndi zotayika, komanso kusunga bata ndi moyo wa batri.4.Thandizo lamakina: Wolekanitsa amatenga gawo lothandizira pamakina mu batri.Ikhoza kukonza malo a maelekitirodi abwino ndi oipa ndi zigawo zina za batri.Imakhalanso ndi mlingo wina wa kusinthasintha ndi kuwonjezereka kuti zigwirizane ndi kukula ndi kutsika kwa batri.Olekanitsa amagwira ntchito yofunika kwambiri pa kayendetsedwe ka ion, chitetezo cha batri, kudzipatula kwa electrolyte ndi kuthandizira makina mu mabatire a lithiamu-ion.Itha kuonetsetsa kuti batire ikugwira ntchito mokhazikika komanso magwiridwe antchito.
3. Mitundu ya olekanitsa batire ya lithiamu-ion
Pali mitundu yambiri ya olekanitsa batire ya lithiamu-ion, yodziwika bwino ndi iyi: 1.Cholekanitsa cha polypropylene (PP): Pano ndiye zinthu zolekanitsa zomwe zimagwiritsidwa ntchito kwambiri.Olekanitsa a polypropylene ali ndi kukana kwamankhwala abwino kwambiri, kukhazikika kwamafuta abwino komanso mphamvu zamakina, pomwe ali ndi kusankha kwa ion zolimbitsa thupi komanso ma conductive properties.2.Polyimide (PI) olekanitsa: Polyimide olekanitsa ali mkulu matenthedwe bata ndi kukhazikika mankhwala, ndipo akhoza kusunga ntchito khola m'madera kutentha kwambiri.Chifukwa cha kukana kwambiri kwamagetsi, zolekanitsa za polyimide zimagwiritsidwa ntchito nthawi zambiri m'mabatire omwe ali ndi mphamvu zambiri komanso zofunikira zamphamvu.3.Polyethylene (PE) olekanitsa: Polyethylene separator ali ndi high ion conductivity ndi mphamvu zabwino zamakina, ndipo nthawi zambiri amagwiritsidwa ntchito mu mitundu yeniyeni ya mabatire a lithiamu-ion, monga supercapacitors ndi lithiamu-sulfure mabatire.4.Chidutswa chophatikizika cha ceramic diaphragm: Chidutswa chophatikizika cha ceramic chopangidwa ndi ceramic fiber reinforced polymer substrate.Ili ndi mphamvu zamakina apamwamba komanso kukana kutentha ndipo imatha kupirira kutentha kwambiri komanso kuwonongeka kwa thupi.5.Nanopore Separator: Nanopore Separator imagwiritsa ntchito ma ion conductivity abwino kwambiri pamapangidwe a nanopore, pomwe ikukumana ndi mphamvu zamakina komanso kukhazikika kwamankhwala.Zimayembekezeredwa kuti zigwiritsidwe ntchito m'mabatire a lithiamu-ion omwe ali ndi mphamvu zambiri komanso zofunikira za moyo wautali.Olekanitsawa a zipangizo zosiyanasiyana ndi mapangidwe amatha kusankhidwa ndi kukonzedwa molingana ndi mapangidwe osiyanasiyana a batri ndi zofunikira za ntchito.
4. Zofunikira za magwiridwe antchito a olekanitsa batire a lithiamu-ion
Olekanitsa mabatire a lithiamu-ion ndi gawo lofunikira lomwe lili ndi zofunikira izi:1.High electrolyte conductivity: Olekanitsa ayenera kukhala ndi electrolyte conductivity yapamwamba kuti apititse patsogolo kayendedwe ka ayoni pakati pa ma elekitirodi abwino ndi oipa kuti akwaniritse kuyendetsa bwino ndi kutulutsa batire.2.Kusankha kwabwino kwa ion: Cholekanitsa chiyenera kukhala ndi kusankha kwa ion kwabwino, kulola kokha kufalitsa ma ion a lithiamu ndikuletsa kulowa kapena kuchitapo kanthu kwa zinthu zina mu batri.3.Kukhazikika kwabwino kwa kutentha: Wolekanitsa ayenera kukhala ndi kukhazikika kwabwino kwa kutentha ndikutha kukhalabe okhazikika pamikhalidwe yovuta kwambiri monga kutentha kwakukulu kapena kuchulukitsitsa kuti ateteze kuthawa kwa kutentha kapena electrolyte evaporation ndi mavuto ena.4.Mphamvu zamakina zabwino kwambiri komanso kusinthasintha: Wolekanitsa amayenera kukhala ndi mphamvu zamakina apamwamba komanso kusinthasintha kuti apewe mavuto monga mabwalo afupiafupi a m'mphepete kapena kuwonongeka kwamkati, komanso kuti agwirizane ndi kukula ndi kutsika kwa batri.5.Kukaniza kwa mankhwala abwino: Cholekanitsa chiyenera kukhala ndi kukana kwa mankhwala abwino ndikutha kukana dzimbiri kapena kuipitsidwa kwa olekanitsa ndi electrolytes, mpweya ndi zonyansa mu batri.6.Otsika kukana ndi otsika permeability: olekanitsa ayenera kukhala otsika kukana ndi otsika permeability kuchepetsa kukana imfa ndi electrolyte kutaya mkati batire.The ntchito zofunika olekanitsa lithiamu-ion batire ndi mkulu electrolyte madutsidwe, kwambiri ion selectivity, wabwino matenthedwe bata, kwambiri makina olekanitsa. mphamvu ndi kusinthasintha, kukana mankhwala abwino, kukana kochepa komanso kutsika kochepa.Zofunikira izi zimatsimikizira chitetezo cha batri, moyo wozungulira komanso kuchuluka kwa mphamvu.
Nthawi yotumiza: Sep-15-2023