Monga chomangira chachikulu cha zinthu zosagwirizana ndi ma elekiti, zinthu za masentimita zimagwiritsidwa ntchito kwambiri ndi opanga batiri apakhomo. Chingwe chokwanira chimatha kupeza batire lalikulu, moyo wautali komanso kukana kwamkati.
Buluder ndi imodzi mwazinthu zofunikira kwambiri zogwira ntchito m'mabatire a lithiamu-ion. Ndilo gwero lalikulu la makina a electrode ndipo amathandiza kwambiri pakupanga ma electrode ndi electrochemical ya batiri. Wonyoweyo yekha alibe mphamvu ndipo amakhala ndi gawo laling'ono kwambiri mu batire.
Kuphatikiza pa zomata za omata a General Bambers, magetsi a setri-ion. Imakhalabe yokhazikika pamlingo wamagetsi, kotero kuti palibe zinthu zambiri za pointer zomwe zingagwiritsidwe ntchito ngati ma elekitirode electrode onyamula mabatire a lithiamu-ion.
Pali mitundu itatu yayikulu ya batri ya lithiamu-ion yomwe imagwiritsidwa ntchito kwambiri pakalipano: PVDF. Kuphatikiza apo, polyacryrylic acid (Paa), kuphika madzi opangidwa ndi madzi ndi polyacrylonile (poto) ndi polyacrylate ngati zigawo zikuluzikulu.
Makhalidwe Awiri a Battery-Level CMC
Chifukwa cha madzi osauka a ma acid kapangidwe ka Carboxymethyl celloluse, kuti agwiritse ntchito bwino, CMC ndi chinthu chogwiritsidwa ntchito kwambiri pakupanga batire.
Monga chomangira chachikulu cha zinthu zosagwirizana ndi ma elekiti, zinthu za masentimita zimagwiritsidwa ntchito kwambiri ndi opanga batiri apakhomo. Chingwe chokwanira chimatha kupeza batire lalikulu, moyo wautali komanso kukana kwamkati.
Makhalidwe anayi a CMC ndi:
Choyamba, CMC imatha kupanga malonda a hydrophilic ndi osungunuka, osungunuka kwathunthu m'madzi, popanda ulusi waulere komanso zodetsa nkhawa.
Chachiwiri, kuchuluka kwa kulowetsako ndi yunifolomu ndipo mamasukidwe amakhala okhazikika, omwe amatha kupereka ufa wokhazikika komanso kutsatira.
Chachitatu, pangani zinthu zapamwamba kwambiri zoyera ndi zitsulo zotsika.
Chachinayi, malonda ali ndi mgwirizano wabwino ndi SBRTX ndi zina.
CMC sodium carboxymethyl cellulose yomwe imagwiritsidwa ntchito pa batri ili bwino pogwiritsa ntchito ntchito yake, ndipo nthawi yomweyo imathandizira kugwiritsa ntchito bwino magwiridwe antchito, pogwiritsa ntchito ntchito pano.
Gawo la cmc m'mabatire
CMC ndi vuto la carboxymet yochokera ku cellulose, yomwe nthawi zambiri imakonzedwa ndi cellulose yokhala ndi caustic alkalilsi alkali ndi monochloroortic acid, ndipo molemlar imachokera ku masauzande mpaka mamiliyoni ambiri mpaka mamiliyoni ambiri.
CMC ndi yoyera ku ufa wachikasu, granur kapena zinthu zowoneka bwino, zomwe zili ndi mphamvu yamphamvu ndipo imasungunuka mosavuta m'madzi. Ikasatenga mbali kapena alkaline, yankho ndi mafayilo ambiri. Ngati imatenthedwa pamwamba pa 80 ℃ kwa nthawi yayitali, chidwi chikuchepa ndipo chimakhala chosakhazikika m'madzi. Imakhala yofiirira pomwe imatentha mpaka 190-205 ° C, ndi carbozes mukamatentha kwa 235-248 ° C.
Chifukwa ma cmc ali ndi ntchito za kukula, kugwiririra, kusungidwa kwamadzi, kumayiko, zojambula, zopangidwa ndi mafakitale monodium glutate ".
Makamaka mu batri, ntchito za CMC ndi: Kubalalitsa zinthu zosasangalatsa zazinthu zogwira ntchito ndi zomwe zimayambitsa; Kukula ndi anti-stortimer kumathandiza pa malo osalimbikitsa; Kuthandiza Kutumikila; Kukhazikitsa magwiridwe antchito a ma elekitirodi ndikuthandizira kukonza magwiridwe antchito a batri; Sinthani mphamvu ya peel ya gawo la mtengo, etc.
Ma cmc magwiridwe antchito ndi kusankha
Powonjezera masentimita popanga skirrode slurry imatha kuwonjezera mafayilo a slurry ndikuletsa kusalala kuti asakhazikike. CMC idzawombola sodium ma ions ndi anyezi mu njira yothetsera matenda a cmc idzachepa ndi kuchuluka kwa kutentha, komwe ndikosavuta kuyamwa chinyezi ndipo kamakhala ndi vuto lalikulu.
CMC ikhoza kutenga gawo labwino kwambiri pakubalalitsa graphite. Kuchuluka kwa masentimita, zinthu zake zowonongeka zidzatsata pamwamba pa tinthu tazikulu, ndipo tinthu tazithunzithunzi zimatengera wina ndi mzake chifukwa cha mphamvu yamagetsi, ndikukwaniritsa ntchito yabwino yobayira.
Choyipa chodziwikiratu cha CMC ndikuti chilipo. Ngati ma cmc onse amagwiritsidwa ntchito ngati binder, graphite yoyipa idzagwera pakukanikiza ndikudula kwa chidutswa cha chidutswacho, chomwe chingapangitse kuti ufa ukhale wotayika. Nthawi yomweyo, masentimita amakhudzidwa kwambiri ndi zida zamagetsi ndi mtengo wa pH, ndipo pepala la electrode limathamangira pakulipiritsa komanso kuwongolera chitetezo cha batri.
Poyamba, binder yomwe imagwiritsidwa ntchito poyambitsa yosavomerezeka inali pvdf ndi ndodo zina zopangidwa ndi mafuta, koma poganizira za kutetezedwa kwa chilengedwe ndi zinthu zina, zakhala zomveka kugwiritsidwa ntchito kugwiritsira ntchito matayala opangidwa ndi madzi a electrodes.
Chophimba chabwino kulibe, yesani kusankha chomangira chomwe chikukumana ndi zofuna za electrocheherika. Ndi chitukuko cha tekinoloje a lithiwan batiri, komanso zowononga komanso zachilengedwe kuteteza, kunyamula zachilengedwe, kuthira madzi opangidwa ndi madzi kumadzaza mafuta ku mafuta.
CMC ziwiri zopanga njira zopangira
Malinga ndi media yoyeserera, kufalikira kwa ma cmc kumatha kugawidwa m'magulu awiri: njira yodzipangira madzi ndi njira yosinthira. Njira yogwiritsira ntchito madzi monga momwe momwe amakopera imatchedwa njira ya madzi, yomwe imagwiritsidwa ntchito kupanga alkaline sing'anga komanso yotsika mtengo. Njira yogwiritsira ntchito zosungunulira zachilengedwe monga momwe mungachitire, zomwe zili njira zosungunulira, zomwe ndizoyenera kupanga kwa sing'anga wa sing'anga. Izi zimachitika kawirikawiri zimachitika m'munda, womwe ndi wa njira yodulira ndipo pakadali pano ndi njira yayikulu yopangira cmc.
Njira yam'madzi: njira yoyambirira yopanga mafakitale, njirayo ikuyenera kuchitira alkali cellulose ndi madzi omasulira amtundu waulere alkali, omwe amagwiritsidwa ntchito pokonza zinthu zapakati komanso zotsika mtengo komanso zopendekera zopendekera. Ubwino wa njira ya sing'anga ya madzi ndikuti zida zofunikira ndizosavuta ndipo mtengo wake ndi wotsika; Zovuta zake ndi chifukwa chakusowa kwa zosowa zambiri zamadzi, kutentha komwe kumapangidwa ndi kutentha kumawonjezera kuthamanga kwa zinthu, zomwe zimapangitsa kuti pakhale bwino komanso mtundu wosauka.
Njira yosungunulira; Amadziwikanso kuti njira yothetsera mifiki ya organic, imagawidwa kuti ikhale njira yodulira komanso njira yochepetsetsa malinga ndi kuchuluka kwa omwe akukudziwa. Chinthu chake chachikulu ndikuti kuphatikizika kwa masitima ndi kuyesedwa kumachitika pansi pa mkhalidwe wa zosungunulira zachilengedwe monga momwe angachitire. Monga momwe njira ya njira yamadzi, njira yosungunulira imakhalanso ndi magawo awiri a kupembedza ndikudzikuza, koma momwe momwemonso momwe mawonekedwe awiriwa ndi osiyana. Ubwino wa njira yosungunulira ndikuti akulephera njira ya alkali akuwukitsa, kukakamiza, kuphwanya, komanso kukalamba mwachilengedwe m'madzi, ndi kusinthika konse kumachitika ku Harder; Choyipacho ndikuti kutentha kutentha kumakhala kwabwino, ndipo zofunikira zake ndizosauka. , mtengo wapamwamba.
Post Nthawi: Feb-14-2025