Gutesha agaciro Isesengura rya Batiri yubucuruzi ya Litiyumu-Ion mububiko bwigihe kirekire

Gutesha agaciro Isesengura rya Batiri yubucuruzi ya Litiyumu-Ion mububiko bwigihe kirekire. Batteri ya Litiyumu-ion yabaye ingenzi mu nganda zinyuranye kubera ubwinshi bw’ingufu kandi neza. Ariko, imikorere yabo yangirika mugihe, cyane cyane mugihe kinini cyo kubika. Gusobanukirwa nuburyo nibintu bigira ingaruka kuri uku kwangirika ningirakamaro mugutezimbere igihe cya bateri no gukoresha neza. Iyi ngingo irasesengura isesengura rya batiri ya lithium-ion yubucuruzi mububiko bwigihe kirekire, itanga ingamba zifatika zo kugabanya imikorere igabanuka no kongera igihe cya bateri.

Uburyo bw'ingenzi bwo gutesha agaciro:

Kwirekura

Imiti yimbere muri bateri ya lithium-ion itera gutakaza buhoro buhoro ubushobozi nubwo bateri iba idafite akazi. Ubu buryo bwo kwisohora, nubwo busanzwe buhoro, burashobora kwihutishwa nubushyuhe bwo hejuru. Impamvu nyamukuru yo kwishira hejuru ni reaction zatewe no kwanduzwa na electrolyte nudusembwa duto mubikoresho bya electrode. Mugihe ibyo bitekerezo bigenda buhoro mubushyuhe bwicyumba, igipimo cyikubye kabiri buri 10 ° C kwiyongera kwubushyuhe. Kubwibyo, kubika bateri ku bushyuhe burenze ibyasabwe birashobora kongera cyane igipimo cyo kwisohora, bigatuma kugabanuka cyane mubushobozi mbere yo gukoreshwa.

Imyitwarire ya electrode

Imyitwarire kuruhande hagati ya electrolyte na electrode bivamo gushiraho interineti ikomeye ya electrolyte (SEI) no gutesha agaciro ibikoresho bya electrode. Igice cya SEI ni ngombwa mu mikorere isanzwe ya bateri, ariko ku bushyuhe bwinshi, ikomeza kwiyongera, ikoresha ioni ya lithium iva muri electrolyte kandi ikongerera imbaraga imbere imbere ya bateri, bityo bikagabanya ubushobozi. Byongeye kandi, ubushyuhe bwo hejuru burashobora guhungabanya imiterere ya electrode yibikoresho, bigatera gucika no kubora, bikagabanya imikorere ya bateri nigihe cyo kubaho.

Gutakaza Litiyumu

Mugihe cyokuzunguruka-gusohora, ion zimwe za lithium zihinduka umutego burundu mumiterere ya electrode yibikoresho bya elegitoronike, bigatuma idashobora kuboneka mugihe kizaza. Iki gihombo cya lithium cyiyongera kubushyuhe bwinshi kuko ubushyuhe bwo hejuru butera ion nyinshi za lithium kugirango zinjizwe kuburyo budasubirwaho inenge za lattice. Nkigisubizo, umubare wa lithium ion uboneka uragabanuka, biganisha ku bushobozi bugabanuka nubuzima bwigihe gito.

Ibintu bigira ingaruka ku gipimo cyo guta agaciro

Ubushyuhe bwo kubika

Ubushyuhe nicyo kintu cyambere kigena kwangirika kwa batiri. Batteri igomba kubikwa ahantu hakonje, humye, nibyiza mubipimo bya 15 ° C kugeza kuri 25 ° C, kugirango bidindiza inzira yo kwangirika. Ubushyuhe bwo hejuru bwihutisha igipimo cyimiti, kongera ubwisanzure no gushiraho urwego rwa SEI, bityo byihuta gusaza.

Leta ishinzwe (SOC)

Kugumana igice cya SOC (hafi 30-50%) mugihe cyo kubika bigabanya imbaraga za electrode kandi bikagabanya umuvuduko wo kwisohora, bityo bikongerera igihe cya bateri. Byombi murwego rwohejuru kandi ruto rwa SOC byongera imbaraga za electrode yibintu, biganisha kumahinduka yimiterere nibindi byinshi. Igice cya SOC kiringaniza ibikorwa nibikorwa, bigabanya umuvuduko wo gutesha agaciro.

Ubujyakuzimu bwo gusohoka (DOD)

Batteri ziterwa no gusohora cyane (DOD ndende) zangirika vuba ugereranije nizisohoka. Gusohora cyane bitera impinduka zikomeye muburyo bwibikoresho bya electrode, bigatera ibice byinshi nibicuruzwa biva kuruhande, bityo bikongera umuvuduko wo kwangirika. Kwirinda gusohora bateri byuzuye mugihe cyo kubika bifasha kugabanya izi ngaruka, kuramba igihe cya bateri.

Ingengabihe

Batteri isanzwe yangirika mugihe bitewe nuburyo bwa chimique na physique. Ndetse no muburyo bwiza bwo kubika, ibice bigize imiti ya batiri bizagenda byangirika buhoro buhoro. Uburyo bwiza bwo kubika burashobora kugabanya umuvuduko wo gusaza ariko ntibishobora kuburinda rwose.

Uburyo bwo gusesengura Impamyabumenyi:

Ubushobozi bugabanuka

Gupima burigihe ubushobozi bwo gusohora bateri bitanga uburyo butaziguye bwo gukurikirana iyangirika ryigihe. Kugereranya ubushobozi bwa bateriyeri mubihe bitandukanye bituma ushobora gusuzuma igipimo cyayo cyo kwangirika nubunini, bigafasha ibikorwa byo kubungabunga igihe.

Electrochemical impedance spectroscopy (EIS)

Ubu buhanga busesengura ingufu za bateri imbere, butanga ibisobanuro birambuye kubyerekeye impinduka za electrode na electrolyte. EIS irashobora kumenya impinduka ziterwa na bateri imbere, igafasha kumenya impamvu zitera kwangirika, nko kubyimba kwa SEI cyangwa kwangirika kwa electrolyte.

Isesengura rya nyuma y'urupfu

Gusenya bateri yangiritse no gusesengura electrode na electrolyte ukoresheje uburyo nka X-ray diffaction (XRD) hamwe na scanning electron microscopie (SEM) birashobora kwerekana impinduka zumubiri nubumashini bibaho mugihe cyo kubika. Isesengura rya post-mortem ritanga amakuru arambuye kubijyanye nimpinduka zubatswe hamwe nibigize muri bateri, bifasha mugusobanukirwa uburyo bwo kwangirika no kunoza igishushanyo mbonera no gufata neza.

Ingamba zo Kugabanya

Ububiko bukonje

Bika bateri ahantu hakonje, hagenzuwe kugirango ugabanye kwiyangiza hamwe nubundi buryo buterwa nubushyuhe. Byiza, komeza ubushyuhe buri hagati ya 15 ° C kugeza 25 ° C. Gukoresha ibikoresho byo gukonjesha byabugenewe hamwe na sisitemu yo kugenzura ibidukikije birashobora kugabanya cyane gahunda yo gusaza kwa bateri.

Kubika igice

Komeza igice cya SOC (hafi 30-50%) mugihe cyo kubika kugirango ugabanye imbaraga za electrode kandi ugabanye kwangirika. Ibi bisaba gushyiraho ingamba zikwiye zo kwishyuza muri sisitemu yo gucunga bateri kugirango barebe ko bateri iguma murwego rwiza rwa SOC.

Gukurikirana buri gihe

Gukurikirana buri gihe ubushobozi bwa bateri na voltage kugirango umenye ibigenda byangirika. Shyira mubikorwa ibikorwa byo gukosora nkuko bikenewe ukurikije ibyo wabonye. Gukurikirana buri gihe birashobora kandi kuburira hakiri kare ibibazo bishobora kuvuka, bikarinda gutsindwa gutunguranye mugihe cyo gukoresha.

Sisitemu yo gucunga bateri (BMS)

Koresha BMS kugirango ukurikirane ubuzima bwa bateri, kugenzura ibiciro-bisohora, kandi ushyire mubikorwa ibintu nko kuringaniza selile no kugenzura ubushyuhe mugihe cyo kubika. BMS irashobora kumenya imiterere ya bateri mugihe nyacyo kandi igahita ihindura ibipimo byimikorere kugirango yongere ubuzima bwa bateri kandi byongere umutekano.

Umwanzuro

Mugusobanukirwa byimazeyo uburyo bwo gutesha agaciro, ibintu bigira ingaruka, no gushyira mubikorwa ingamba zifatika zo kugabanya ibicuruzwa, urashobora kuzamura cyane imicungire yigihe kirekire yo kubika bateri yubucuruzi ya lithium-ion. Ubu buryo butuma ikoreshwa rya batiri neza kandi ryongerera igihe cyose ubuzima bwabo, ryemeza imikorere myiza nigiciro cyiza mubikorwa byinganda. Kubindi bisubizo byimbaraga zo kubika ingufu, tekereza kuri215 kWh Sisitemu yo Kubika Ingufu n’inganda by Kamada Imbaraga.

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