Kodi ndi kusintha kotani komwe kumafunika kuti kuchitike pakugwira ntchito kwa graphitized petroleum coke?

Kuti akwaniritse zofunikira za mabatire a lithiamu-ion a m'badwo wotsatira omwe amagwira ntchito bwino kwambiri, coke ya petroleum yokhala ndi graphitized imafuna kusintha magwiridwe antchito, kukhazikika kwa kayendedwe kake, magwiridwe antchito otsika kutentha, mphamvu ya kapangidwe kake, magwiridwe antchito oyamba, komanso kugwiritsa ntchito bwino ndalama pazinthu zopangira. Kusanthula kwapadera kuli motere:

I. Kulimbikitsa Kugwira Ntchito kwa Chiŵerengero ndi Kukhazikika kwa Mzere

Vuto: Pa nthawi yochaja ndi kutulutsa, kuyika ndi kutulutsa ma lithiamu ion mu graphitized petroleum coke kungayambitse kufutukuka ndi kupindika kwa zigawo za graphite. Pakapita nthawi yayitali, izi zitha kubweretsa kuwonongeka kwa kapangidwe kake, zomwe zimakhudza kukhazikika kwa kayendedwe kake. Malangizo Owongolera:

• Kukonzanso Kapangidwe ka Tinthu: Sankhani zinthu zoyenera zoyambira singano ndikugwiritsa ntchito zinthu zosavuta kuzijambula monga phula ngati magwero a kaboni pazomangira. Mwa kuyika zinthuzi mu uvuni wozungulira, tinthu tating'onoting'ono ta singano tingalumikizidwe pamodzi kuti tipange tinthu tachiwiri tokhala ndi tinthu toyenera, kutsatiridwa ndi graphitization. Njira imeneyi imachepetsa bwino kristalo yolozera (OI value) ya chinthucho ndikuwonjezera njira yofalitsira ma ayoni a lithiamu, potero kumawonjezera magwiridwe antchito.
• Kusintha kwa Kuphimba Pamwamba: Koke ya petroleum yokhala ndi graphitized yokhala ndi zinthu monga amorphous carbon, metal oxides, kapena ma polima kuti apange tinthu ta "core-shell". Chophimbacho chimatha kusiyanitsa kukhudzana mwachindunji ndi electrolyte, kuchepetsa malo ogwirira ntchito pamwamba, kuchepetsa malo enaake pamwamba, komanso nthawi yomweyo kuwonjezera mphamvu zolowetsa ndi kufalitsa ma lithiamu ion, potero kumawonjezera kukhazikika kwa kayendedwe ka kayendedwe kake.

II. Kupititsa patsogolo Kugwira Ntchito Pakutentha Kochepa

Vuto: M'malo otentha pang'ono, kuchuluka kwa ma lithiamu ion mu graphitized petroleum coke kumachepa, zomwe zimapangitsa kuti magwiridwe antchito a batri achepe. Malangizo Owongolera:

• Kugwiritsa Ntchito Mpweya Wofewa: Kuphatikiza gawo linalake la mpweya wofewa mu anode ya graphite kungathandize kuti batire igwire bwino ntchito yake yochaja kutentha kochepa. Mpweya wofewa uli ndi kapangidwe kake ka amorphous komwe kali ndi malo akuluakulu pakati pa zigawo komanso kugwirizana bwino ndi electrolyte, zomwe zimapangitsa kuti kutentha kukhale kochepa kwambiri. Komabe, chiŵerengero cha mpweya wofewa chiyenera kulamulidwa mosamala kuti chigwirizane ndi kutentha kotsika komanso moyo wa nthawi yozungulira.
• Kukonza Mapangidwe a Electrolyte: Konzani bwino kapangidwe ka electrolyte mwa kuwonjezera zowonjezera zatsopano kapena kusintha kapangidwe ka solvent kuti muchepetse kukhuthala kwa electrolyte pa kutentha kochepa ndikuwonjezera kuchuluka kwa ma lithiamu ion.

III. Kukweza Mphamvu ndi Kukhazikika kwa Kapangidwe ka Nyumba

Vuto: Zipangizo za kaboni zokhala ndi grafiti yambiri, ngakhale zili ndi mphamvu zambiri komanso nsanja zokhazikika zotulutsira mphamvu, zitha kuwonetsa magwiridwe antchito oipa komanso kutentha kochepa.

• Kulamulira Mlingo wa Graphitization: Pa nthawi ya graphitization, mlingo wa graphitization uyenera kulamulidwa kuti usunge kapangidwe kake kosasintha pakati pa ma microcrystals, motero kusunga mphamvu inayake ya kapangidwe kake.
• Kuyambitsa Ma Nanostructures: Mwa kupanga ma nanostructures kapena ma porous structures, kuchuluka kwa njira zoyikira ndi zotulutsira ma lithiamu ion kumatha kuwonjezeka, zomwe zimapangitsa kuti kapangidwe kake kakhale kolimba.

IV. Kukonza Kugwiritsa Ntchito Bwino Koyamba ndi Kuchepetsa Ndalama

Vuto: Monga chinthu chopangidwa ndi anode, graphitized petroleum coke ingakhale ndi mphamvu yochepa yoyambira komanso ndalama zambiri zopangira.

• Chithandizo cha Oxidation Surface: Thirani mafuta oyeretsedwa pogwiritsa ntchito graphitized petroleum coke ndi njira yamphamvu yowonjezerera oxidizing kuti achepetse ndikuchepetsa magulu ogwira ntchito, potero akuwonjezera magwiridwe antchito oyamba.
• Kukonza Njira Zopangira: Kukonza njira zopangira monga calcination ndi graphitization kuti muchepetse ndalama zopangira ndikuwonjezera magwiridwe antchito opangira.