Ama-electrode ya grafiti yagaragaje amahirwe menshi yo kuyakoresha mu rwego rushya rw'ingufu, nka bateri za sodium-ion na bateri za solid-state. Imiterere yazo ihamye n'iya chimique hamwe n'imiterere yazo y'urwego bitanga inkunga y'ingenzi yo kunoza imikorere ya bateri. Hagati aho, zishobora kongera umutekano muri bateri za solid-state no kwagura umwanya wo kuyakoresha binyuze mu kunoza ikoranabuhanga muri bateri za sodium-ion.
I. Bateri za Solid-state: Ibyiza by'umutekano wa grafiti nk'ibikoresho bya anode
Imiterere y'ibice by'imbere ibuza ikorwa rya dendrite ya lithium
Imiterere ya kristale ya girafu ishobora kuyobora neza uburyo iyoni za lithium zihurirana n’uburyo zisohokana, hirindwa ingaruka za "short-circuit" ziterwa na dendrites zinjira mu gice cyo gutandukanya, kandi bikanoza cyane imikorere y’umutekano wa bateri za "solid-state". Iyi miterere ituma girafu iba imwe mu bisubizo bikunzwe cyane ku bikoresho bya anode muri bateri za "solid-state".
Gukomera kw'ibinyabutabire BIRAHINDURA ibidukikije bikomeye
Bateri za Solid-state zikoresha electrolyte zikomeye aho gukoresha electrolyte z’amazi, zigatanga ubushyuhe bwinshi n’amashanyarazi menshi. Graphite ishobora kubungabunga imiterere yayo mu bidukikije birimo ubushyuhe bwinshi n’umuvuduko mwinshi, bigatuma bateri zimara igihe kirekire kandi zigakurikiza ibisabwa mu kubika ingufu.
Birashoboka ko habaho ivugurura ry'ikoranabuhanga
Mu kunoza uburyo bwo gutegura (nk'uburyo bwo gupima no gusiga hejuru), ubucucike bw'ingufu n'ubushobozi bwo gusohora amashanyarazi bya anode za grafiti bishobora kongerwa. Urugero, anode za silicon-carbon zivanze n'ibikoresho bishingiye kuri silicon zageze ku musaruro mwinshi, zifite ubushobozi bwihariye inshuro 3 kugeza kuri 5 kurusha ubwa graphite gakondo, bityo zikaba icyerekezo cy'ingenzi cy'ibisubizo by'ingufu nyinshi muri bateri zikomeye.
Ii. Bateri za Sodium-iyoni: Iterambere mu ikoranabuhanga n'ibyiza by'igiciro cya Graphite Anodes
Udushya mu buryo bwo guhuza iyoni ya sodium
Igitekerezo gakondo kivuga ko intera iri hagati y’ibice bya grafiti (hafi 0.335nm) idashobora kwakira iyoni za sodium (ifite umurambararo wa 0.36nm), ariko ubushakashatsi buherutse bwagaragaje ko iyoni za sodium zishobora kongera intera iri hagati y’ibice bya grafiti binyuze mu gusya umupira cyangwa hakoreshejwe imvange ya sodium-oxide kugira ngo habeho uburyo bwo gukora ibikorwa byo gukumira. Iri terambere ryafunguye inzira nshya yo gukoresha grafiti muri bateri za sodium-ion.
Ikiguzi n'inyungu z'umutungo
Isi ikungahaye ku bubiko bwa grafiti kandi ikwirakwizwa cyane. Ubushinwa bufite hejuru ya 60% by'ubushobozi bwo gukora ku isi, kandi ikiguzi cy'ibikoresho fatizo kiri hasi cyane ugereranyije n'umutungo wa lithium. Bateri za sodium-ion ziramutse zikoresheje anode za grafiti, bishobora kugabanya ikiguzi cya bateri no kwihutisha inzira yo kuzicuruza mu nzego nko kubika ingufu n'imodoka zikoresha amashanyarazi yihuta cyane.
Gukoresha ibikoresho bikomeye bya karuboni mu buryo bw'ubufatanye
Karuboni ikomeye yabaye ibikoresho by’ingenzi bya anode kuri batiri za sodium-ion bitewe n’imiterere yayo idakora neza n’intera nini hagati y’ibice, ariko ifite ibibazo byo kudakora neza mu ntangiriro ndetse n’igiciro kinini. Guhuza grafiti na karuboni ikomeye bishobora kuringaniza imikorere n’igiciro. Urugero, ikoranabuhanga rya karuboni ikomeye rikozwe muri asphalt ritanga uburyo bwiza bwa anode kuri batiri za sodium-ion binyuze mu kongera imikorere y’amashanyarazi, kugabanya ubukana bw’imbere mu mubiri, no kunoza uburyo uruziga rudahinduka.
Iii. Ingufu zikomoka ku isoko n'imiterere y'inganda
Ubusabe bw'ingufu nshya bwagaragaje ukwiyongera gukomeye
Ku isi hose, ibicuruzwa bishya bikoresha ingufu byakomeje kwiyongera, kandi icyifuzo cya bateri ziramba kandi zihendutse mu bubiko bw'ingufu cyariyongereye, bituma isoko ry'ibikoresho bya anode bya bateri ya lithium-ion ryaguka. Biteganijwe ko umusaruro w'ibikoresho bya anode ku isi uzagera kuri toni miliyoni 2.625 mu 2025, muri byo harimo grafiti irenga 98%, ikaba ibikoresho by'ingenzi mu rwego rw'ingufu nshya.
Ibigega by'ikoranabuhanga mu bigo no kongera ubushobozi bw'ibigo
Shanshan Co., Ltd. irimo guteza imbere umusaruro mwinshi w’ibikoresho bishingiye kuri silikoni. Anode zikomeye za karuboni zikoreshwa cyane muri bateri za lithiyumu, bateri za sodium-ion na bateri zisanzwe. Ubushobozi bw’ingufu zubatswe ni toni 1.000 naho ubushobozi bw’ingufu zikiri mu bwubatsi ni toni 40.000.
Yicheng New Energy: Yishingikirije ku byiza by'itsinda mu mutungo wa hydrogen, carbone na silikoni, yubatse sisitemu y'inganda y' "ibikoresho bya karuboni byo mu rwego rwo hejuru + guhuza ububiko bw'ingufu n'umuyoboro w'amazi". Ishami ryayo ryigenga, Kaifeng Carbon, rifite isoko ry'imbere mu gihugu rirenga 30% ku bicuruzwa byayo bikomeye, UHPΦ 600-700mm graphite electrodes, ifite umwanya wa mbere mu nganda.
Catl na BTR: Bafatanyije gutegura ibikoresho bya grafiti anode bifite ubucucike bwinshi kugira ngo bongere ubucucike bw'ingufu za bateri n'ubuzima bwazo, kandi bakomeze umwanya wabo w'imbere mu ikoranabuhanga.
Politiki n'amahame biyobora ku iterambere ry'inganda
Ubushinwa bwasohoye inyandiko za politiki nka "Amategeko agenga Inganda za Graphite" na "Gahunda y'Iterambere ry'Inganda Nshya z'Ingufu", bigamije guhindura inganda zigatera imbere mu buryo bwo hejuru, bw'ubwenge kandi burengera ibidukikije. Ibigo byongera imbaraga zabyo mu ikoranabuhanga no guhangana ku isoko binyuze mu guhuza ibikoresho byose (nk'uburyo bwo gushyiraho ubushobozi bwo kwikorera bwa nelexle coke) no kwitabira gushyiraho amahame mpuzamahanga (nk'amahame agenga isuzuma rya electrode ya graphite ya ISO).
Iv. Ingendo n'imbogamizi by'ejo hazaza
Guhuza ikoranabuhanga n'udushya
Ubushakashatsi n'iterambere ry'ibikoresho bya graphene na electrode, ndetse no kunoza uburyo electrolyte zikomeye zikoreshwa na graphite anode zikoreshwa, bizaba ingenzi mu guca intege ingano y'ingufu. Urugero, bateri zikoreshwa na graphene zishobora kongera ubushobozi bwo gutwara no guhaza ibyifuzo by'imodoka zikoresha amashanyarazi.
Kurengera ibidukikije n'iterambere rirambye
Igipimo cyo kugarura umukungugu wa grafiti kigomba kuzamurwa kikagera kuri 99.9%, kandi ikoranabuhanga ryo gukora ingufu zishyushya hakoreshejwe calcium rishobora kugarura 35% by'ingufu zikoreshwa. Ibigo bigomba kubaka uburyo bwo “gukora – kongera gukoresha – kongera gukoresha” kugira ngo bihuze n'amahame mpuzamahanga yo kurengera ibidukikije nk'imisoro ya karuboni y'Umuryango w'Ubumwe bw'u Burayi.
Kwaguka kw'amasoko ari kuzamuka
Binyuze mu "Belt and Road Initiative", ibigo by’Abashinwa bya grafiti byohereje ikoranabuhanga ryabyo mu majyepfo y’uburasirazuba bwa Aziya, muri Afurika no mu tundi turere, kandi bishyiraho ishingiro ry’umusaruro mu gace runaka kugira ngo birinde inzitizi mu bucuruzi. Urugero, muri Maleziya harimo kubakwa ishingiro ry’umusaruro w’ibikoresho bya grafiti anode kugira ngo habeho ibyifuzo by’abaturage ku modoka nshya zikoresha ingufu.
Igihe cyo kohereza: Kanama-22-2025