Umshini Wokuvunguza Webhethri Le-lithium: Izimiso, Izinqubo Eziyinhloko Nemihlahlandlela Yokulawula Ikhwalithi

Enqubweni yokukhiqiza amabhethri e-lithium-ion, ngokuvamile kunezindlela eziningana zokuhlukanisa inqubo. Inqubo ingahlukaniswa ngezinqubo ezintathu ezinkulu: ukukhiqizwa kwama-electrode, inqubo yokuhlanganisa kanye nokuhlolwa kwamaseli (njengoba kukhonjisiwe esithombeni esingezansi), futhi kukhona nezinkampani ezihlukanisayo zibe izinqubo zokuvunguza ngaphambili kanye nezinqubo zangemuva, futhi leli phuzu lokuhlukanisa inqubo emazombezombe. Ngenxa yomsebenzi wayo oqinile wokuhlanganisa, ingenza ukubukeka kwebhethri kube ukubumba kokuqala, ngakho-ke inqubo yokuvunguza ekukhiqizeni ibhethri ye-lithium-ion njengendima ebalulekile, iwukhiye, inqubo yokusonta ekhiqizwa umgogodla ogoqiwe ngokuvamile ibizwa ngokuthi i-bare. iseli yebhethri (Jelly-Roll, ebizwa ngokuthi JR).

Inqubo Yokukhiqiza Ibhethri ye-Lithium-ion
Enqubweni yokukhiqiza ibhethri ye-lithium-ion, inqubo yokuphefumula eyinhloko iboniswa kanje. Umsebenzi othize uwukugoqa ucezu lwesigxobo esiyiphozithivu, ucezu lwesigxobo olunegethivu kanye nefilimu yokuhlukanisa ndawonye ngokusebenzisa inaliti yomshini osongayo, futhi izingcezu zezigxobo eziseduze nezinegethivu zihlukaniswa ifilimu yokuhlukanisa ukuze kuvinjelwe ukujikeleza okufushane. Ngemva kokuqeda ukugoqa, umgogodla uhlanganiswe nephepha lokunamathisela elivalayo ukuvimbela umgogodla ukuba ungahlukani, bese ugeleza kunqubo elandelayo. Kule nqubo, isihluthulelo siwukuqinisekisa ukuthi akukho ukuthintana ngokomzimba phakathi kwama-electrode aqondile noma angalungile, nokuthi ishidi le-electrode elingalungile lingakwazi ukumboza ngokuphelele ishidi le-electrode elihle kuzo zombili izikhombisi-ndlela ezivundlile neziqondile.

Umdwebo wohlelo lwenqubo yokusonta
Enqubweni yokusonteka yomgogodla, ngokuvamile izikhonkwane ezimbili ze-roll zibopha izendlalelo ezimbili ze-diaphragm ukuze zisongelwe ngaphambili, bese ziphakela ucezu lwesigxobo oluphozithivu noma olunegethivu ngokushintshana, bese ucezu lwesigxobo luboshelwa phakathi kwezingqimba ezimbili ze-diaphragm ukuze zisonge. Esiqondisweni se-longitudinal somgogodla, i-diaphragm idlula i-diaphragm engalungile, futhi i-diaphragm engalungile idlula i-diaphragm ephozithivu, ukuze kugwenywe isifunda esifushane sokuxhumana phakathi kwama-diaphragm aqondile noma angalungile.

Umdwebo wohlelo lwe-diaphragm enaliti esontayo

Umdwebo obonakalayo womshini wokujija ozenzakalelayo

Umshini wokugcwalisa umshini uyisisetshenziswa esibalulekile sokuthola inqubo ewumongo yokuvala. Uma kubhekiselwa kulo mdwebo ongenhla, izingxenye zawo eziyinhloko nemisebenzi imi kanje:

1. Isistimu yokuphakela izingcezu zezigxobo: dlulisa izingcezu zezigxobo eziphozithivu nezinegethivu eduze komzila wesitimela ukuya ezingqimbeni ezimbili ze-diaphragm phakathi kohlangothi lwe-AA nohlangothi lwe-BB ngokulandelanayo ukuze kuqinisekiswe ukutholakala kwezingcezu zezigxobo ezizinzile.
2. Isistimu yokuqaqa i-diaphragm: Ihlanganisa ama-diaphragm angaphezulu naphansi ukuze ubone ukunikezwa okuzenzakalelayo nokuqhubekayo kwama-diaphragm enalithini esongayo.
3. Uhlelo lokulawula ukushuba: ukulawula ukungezwani okungaguquki kwe-diaphragm ngesikhathi sokusonga.
4. Uhlelo lwe-Winding kanye ne-gluing: yokunamathisela nokulungisa ama-cores ngemva kokugoqa.
5. Isistimu yokuthutha impahla: Hlula ngokuzenzakalelayo ama-cores ezinalitini bese uwaphonsa ebhandeni elizenzakalelayo lokuhambisa.
6. Ukushintsha unyawo: Uma singekho isimo esingavamile, gibela iswishi yonyawo ukuze ulawule ukusebenza okuvamile kokujikajika.
7. Isixhumi esibonakalayo sokusebenzisana komuntu nekhompuyutha: ngokusetha ipharamitha, ukulungisa iphutha ngesandla, ukwaziswa kwe-alamu neminye imisebenzi.

Kusukela ekuhlaziyweni okungenhla kwenqubo yokugoqa, kungabonakala ukuthi ukuvuthwa kwenkango kagesi kuqukethe izixhumanisi ezimbili ezingenakugwenywa: ukusunduza inaliti nokudonsa inaliti.
Phusha inqubo yenaliti: imiqulu emibili yezinaliti inwebeka ngaphansi kwesenzo sokusunduza isilinda yenaliti, kuzo zombili izinhlangothi ze-diaphragm, imiqulu emibili yezinaliti eyakhiwe ngokuhlanganiswa kwesilinda yenaliti efakwe emkhonweni, imiqulu yezinaliti. eduze nokubopha i-diaphragm, ngesikhathi esifanayo, imiqulu emibili yezinaliti iyahlangana ukuze yakhe umumo olinganayo ngokuyisisekelo, njengomnyombo wokusonteka okuwumongo.

Umdwebo wohlelo lwenqubo yokuphusha inaliti

Inqubo yokupompa inaliti: ngemva kokuphothulwa kokuphonswa komgogodla, izinaliti ezimbili zihlehliswa ngaphansi kwesenzo sesilinda sokupompa inaliti, isilinda yenaliti siyahoxiswa emkhonweni, ibhola emshinini yenaliti livala inaliti ngaphansi kwesenzo sentwasahlobo, futhi izinaliti ezimbili ziboshwe ngezindlela eziphambene, futhi ubukhulu bokuphela kwenaliti buyancishiswa ukuze bakhe igebe elithile phakathi kwenaliti nendawo engaphakathi yomgogodla, futhi inaliti ihoxisiwe ngokuhlobene nomkhono obambayo, izinaliti kanye umnyombo ungahlukaniswa kahle.

Umdwebo wohlelo lwenqubo yokukhipha inaliti

"Inaliti" ohlelweni lokusunduza nokukhipha inaliti engenhla ibhekisela enaliti, okuyinto, njengengxenye eyinhloko yomshini osongayo, inomthelela omkhulu ejubaneni lokuhamba kanye nekhwalithi yomgogodla. Njengamanje, iningi lemishini yokusonta isebenzisa izinaliti eziyindilinga, ezisaqanda neziyisicaba ezimise okwedayimane. Ukuze izinaliti eziyindilinga neziyindilinga, ngenxa yobukhona bayo be-arc ethile, kuzoholela ekuguqulweni kwendlebe yesigxobo somgogodla, enqubweni elandelayo yokucindezela okuyisisekelo, kodwa futhi kulula ukubangela ukushwabana kwangaphakathi kanye nokuguqulwa komgogodla. Ngokuqondene nezinaliti eziyisicaba ezimise okwedayimane, ngenxa yomehluko omkhulu wosayizi phakathi kwezimbazo ezinde nezimfushane, ukungezwani kwesiqephu sesigxobo kanye ne-diaphragm kuyahluka kakhulu, kudinga ukuthi idrayivu ishaye umoya ngesivinini esiguquguqukayo, okwenza inqubo kube nzima ukuyilawula, futhi isivinini sokujika ngokuvamile siphansi.

Umdwebo wohlelo wezinaliti ezisontayo ezivamile

Thatha inaliti eyinkimbinkimbi kakhulu futhi evamile eyisicaba emise okwedayimane njengesibonelo, ngesikhathi sokusonga nokujikeleza kwayo, izingcezu zezigxobo eziphozithivu nezingezinhle kanye ne-diaphragm zihlala zigoqwe emakhoneni ayisithupha ka-B, C, D, E, F. kanye no-G njengephoyinti lokusekela.

Umdwebo oyisikimu wokuzungezisa inaliti ejikayo emise okwedayimane eliyisicaba

Ngakho-ke, inqubo yokusonga ingahlukaniswa ibe ukujikajika kwesigaba nge-OB, OC, OD, OE, OF, OG njengerediyasi, futhi idinga kuphela ukuhlaziya ukuguqulwa kwejubane lomugqa kububanzi obuyisikhombisa obungama-angular phakathi kuka-θ0, θ1, θ2, θ3, θ4, θ5, θ6, kanye no-θ7, ukuze kuchazwe ngokwesilinganiso ngokuphelele inqubo yokuzungezisa eyi-cyclic yenaliti esongayo.

Umdwebo weschematic wama-engeli ahlukene wokuzungezisa inaliti

Ngokusekelwe ebudlelwaneni be-trigonometric, ukuhlobana okuhambisanayo kungatholwa.

Kusukela kule equation engenhla, kulula ukubona ukuthi lapho inaliti ejikayo ilinyazwa ngesivinini esingaguquki se-angular, isivinini somugqa sokujika kanye ne-engeli eyakhiwe phakathi kwendawo yokusekela yenaliti kanye nezingcezu zezigxobo ezinhle nezimbi kanye ne-diaphragm kukhona. kubudlelwano bomsebenzi obuhlukene. Ubudlelwano besithombe phakathi kwalokhu okubili bufaniswe nguMatlab ngale ndlela elandelayo:

Izinguquko zejubane elijikajikayo ngama-engeli ahlukene

Kusobala ngokunembile ukuthi isilinganiso sejubane eliphezulu lomugqa ukuya esivinini esincane somugqa enqubweni yokusonteka yenaliti eyisicaba emise okwedayimane esithombeni singaba izikhathi ezingaphezu kweziyi-10. Ushintsho olukhulu kangaka lwejubane lomugqa luzoletha ukuguquguquka okukhulu ekubambeni kwe-electrode ephozithivu noma engemihle kanye ne-diaphragm, okuyimbangela eyinhloko yokuguquguquka kokushuba kwesimo. Ukushintshashintsha kwe-tension okweqile kungase kuholele ekweluleni kwe-diaphragm phakathi nenqubo yokusonta, ukuncipha kwe-diaphragm ngemva kokusonteka, kanye nesikhala songqimba esincane emakhoneni angaphakathi kwenkambo ngemva kokucindezela okuphakathi. Enqubweni yokushaja, ukunwetshwa kocezu lwesigxobo kubangela ingcindezi ekuqondeni kobubanzi bomgogodla ongagxili, okuholela enkathini yokugoba, okuholela ekuhlanekeni kwesigxobo, futhi ibhethri ye-lithium elungisiwe ekugcineni ivela "S. "i-deformation.

Isithombe se-CT nomdwebo wokuqaqa "S" owumgogodla okhubazekile

Njengamanje, ukuze kuxazululwe inkinga yekhwalithi embi ewumgogodla (ikakhulukazi i-deformation) ebangelwa ukuma kwenaliti emazombezombe, izindlela ezimbili zivame ukusetshenziswa: ukugoqa okuguquguqukayo nokuguquguquka kwesivinini.

1. I-variable tension winding: Thatha ibhethri eliyisilinda njengesibonelo, ngaphansi kwesivinini esingaguquki se-angular, isivinini somugqa siyakhuphuka ngenani lezingqimba ezimazombezombe, okuholela ekunyukeni kwengcindezi. Ukuvuthwa kwengcindezi eguquguqukayo, okungukuthi, ngohlelo lokulawula ukushuba, ukuze ukungezwani kusetshenziswe esiqeshini noma i-diaphragm nokwanda kwenani lezingqimba ezimazombezombe kanye nokuncipha komugqa, ukuze uma kwenzeka isivinini sokujikeleza singaguquki, kodwa singakwazi. yenza yonke inqubo yokugoqa ye-tension ngangokunokwenzeka ukuze ugcine ukuqina. Inani elikhulu lokuhlolwa kokuqina kokuqina okuguquguqukayo kuholele eziphethweni ezilandelayo:
a. Uma kuncane ukungezwani okumazombezombe, kuba ngcono umphumela wokuwohloka komgogodla.
b. Ngesikhathi sokusonteka kwesivinini esingaguquki, njengoba i-diameter ewumgogodla ikhula, ukushuba kuyehla ngokulandelana ngengozi ephansi yokuguquguquka kunokugoqa okungapheli kokuqina.
2. Ukujikajika kwesivinini esiguquguqukayo: Thatha iseli eliyisikwele njengesibonelo, inaliti eyisicaba emise okwedayimane evame ukusetshenziswa. Lapho inaliti ilinyazwa ngesivinini esingaguquki se-angular, isivinini somugqa sishintshashintsha kakhulu, okuholela ekwehlukeni okukhulu kwesikhala sesendlalelo emakhoneni omgogodla. Ngalesi sikhathi, isidingo sejubane lomugqa sishintsha ukuncishiswa okuhlehlayo komthetho wokushintsha isivinini sokuzungeza, okungukuthi, ukujikajika kwesivinini esijikelezayo ngokushintsha kwe-engeli kanye noshintsho, ukuze kubonakale inqubo ejikajikayo yokuguquguquka kwesivinini somugqa njengento encane. ngangokunokwenzeka, ukuze kuqinisekiswe ukuthi ukushintshashintsha kwengcindezi ebangeni lenani elincane le-amplitude.

Ngamafuphi, ukuma kwenaliti ephendukayo kungase kuthinte ukuvuleka kwendlebe yesigxobo (isivuno esiyinhloko nokusebenza kukagesi), isivinini esiphendukayo (ukukhiqiza), ukufana kokucindezeleka kwangaphakathi okuyisisekelo (izinkinga zokubukeka kwe-deformation) njalonjalo. Kumabhethri angama-cylindrical, izinaliti eziyindilinga zivame ukusetshenziswa; amabhethri ayisikwele, izinaliti ze-rhombic eziyisiyingi noma eziyisicaba zivame ukusetshenziswa (kwezinye izimo, izinaliti eziyindilinga zingasetshenziswa futhi ukuvunguza futhi zenze umnyombo ukuze zenze umgogodla wesikwele). Ngaphezu kwalokho, inani elikhulu ledatha yokuhlola libonisa ukuthi ikhwalithi yama-cores inomthelela obalulekile ekusebenzeni kwe-electrochemical nokusebenza kokuphepha kwebhethri lokugcina.

Ngokusekelwe kulokhu, silungise okunye okukhathazayo okubalulekile kanye nezinyathelo zokuphepha enqubweni yokusongelwa kwamabhethri e-lithium, ngethemba lokugwema ukusebenza okungafanele ohlelweni lokusonga ngangokunokwenzeka, ukuze senze amabhethri e-lithium ahlangabezana nezidingo zekhwalithi.

Ukuze ubone ngeso lengqondo ukukhubazeka okuyisisekelo, umgogodla ungacwiliswa ku-AB glue epoxy resin ukuze uphulukiswe, bese ingxenye ephambanayo ingasikwa futhi ipholishwe nge-sandpaper. Kungcono kakhulu ukubheka amasampula alungisiwe ngaphansi kwesibonakhulu noma ngesibonakhulu se-electron yokuskena, ukuze uthole imephu yokukhubazeka kwangaphakathi kwengqikithi.

Imephu enesici sangaphakathi somongo
(a) Isibalo sibonisa umongo ofanelekayo ongenawo amaphutha asobala angaphakathi.
(b) Emfanekisweni, ucezu lwesigxobo ngokusobala lusontekile futhi lukhubazekile, okungenzeka luhlobene nokushuba kwamajika, ukungezwani kukhulu kakhulu ukuze kubangele imibimbi yesigxobo, futhi lolu hlobo lwamaphutha luzokwenza isixhumi esibonakalayo sebhethri siwohloke futhi i-lithium imvula, okuzolimaza ukusebenza kwebhethri.
(c) Kukhona into yangaphandle phakathi kwe-electrode kanye ne-diaphragm emfanekisweni. Lesi sici singase siholele ekuzikhipheni ngokweqile futhi kubangele ngisho nezinkinga zokuphepha, kodwa ngokuvamile kungatholwa ekuhlolweni kwe-Hi-pot.
(d) I-electrode emfanekisweni inephethini yokungasebenzi kahle nenegethivu, engaholela kumthamo ophansi noma imvula ye-lithium.
(e) I-electrode esesithombeni inothuli oluxubene ngaphakathi, okungase kuholele ekuzikhipheni ngokwako kwebhethri.

Ngaphezu kwalokho, ukukhubazeka ngaphakathi kwengqikithi kungabonakala ngokuhlolwa okungabhubhisi, njengokuhlola okuvame ukusetshenziswa kwe-X ray kanye ne-CT. Okulandelayo isingeniso esifushane kwezinye izici ezivamile zenqubo:

1. Ukumbozwa kahle kwesigxobo sesigxobo: ucezu lwesigxobo olunegethivu lwasendaweni alumbozwanga ngokugcwele ngocezu lwesigxobo oluphozithivu, okungase kuholele ekushintshashintsheni kwebhethri kanye nemvula ye-lithium, okuholela ezingcupheni zokuphepha ezingaba khona.

2. Ukuguqulwa kwesiqeshana se-pole: ucezu lwesigxobo lukhubazekile ngokukhipha, okungase kuqalise ukujikeleza okufushane kwangaphakathi futhi kulethe izinkinga ezinkulu zokuphepha.

Kuyafaneleka ukusho ukuthi ngo-2017, icala lokuqhuma kweselula ye-samsung note7 evusa amadlingozi, umphumela wophenyo ungenxa ye-electrode engalungile ngaphakathi kwebhethri ecindezelwayo ukuze kubangele i-short circuit yangaphakathi, ngaleyo ndlela ibangele ukuthi ibhethri liqhume, ingozi ibangele i-samsung electronics. ukulahlekelwa ngaphezu kwezigidigidi ezingu-6 zamaRandi.

3. Insimbi yangaphandle: indaba yensimbi yangaphandle ukusebenza kwebhethri ye-lithium-ion, ingase ivele kunamathisele, imishini noma imvelo. Izinhlayiya ezinkulu zensimbi yangaphandle zingase zibangele ngokuqondile ukujikeleza okufushane ngokomzimba, futhi lapho indaba yangaphandle yensimbi ixubene ne-electrode ephozithivu, izokwenziwa i-oxidized bese ifakwa phezu kwe-electrode engalungile, ibhoboze i-diaphragm, futhi ekugcineni ibangele ngaphakathi. i-short circuit ebhethrini, ebeka ingozi enkulu yokuphepha. Izinto ezivamile zensimbi zangaphandle yi-Fe, Cu, Zn, Sn njalonjalo.

Umshini wokusonta ibhethri ye-lithium usetshenziselwa ukusonga amaseli ebhethri ye-lithium, okuwuhlobo lwemishini yokuhlanganisa ishidi le-electrode ephozithivu, ishidi le-electrode elingalungile kanye ne-diaphragm ibe yiphakethe eliyinhloko (JR: JellyRoll) ngokuzungezisa ngokuqhubekayo. Imishini yokukhiqiza yasendlini yasekhaya yaqala ngo-2006, isuka kumjikelezo oyi-semi-automatic, i-semi-automatic square winding, ukukhiqizwa kwefilimu okuzenzakalelayo, yase ithuthukiswa yaba yi-automation ehlanganisiwe, umshini wokuvala ifilimu, umshini wokuvala i-laser die-cutting winding, umshini wokugoqa oqhubekayo we-anode, i-diaphragm eqhubekayo umshini, njalonjalo.

Lapha, sincoma ngokukhethekile i-Yixinfeng laser die-cutting winding and pushing flat machine. Lo mshini uhlanganisa ubuchwepheshe obuthuthukisiwe be-laser die-cutting, inqubo esebenza kahle yokuvala kanye nomsebenzi wokusunduza onembile, ongathuthukisa kakhulu ukusebenza kahle kokukhiqiza kanye nekhwalithi yebhethri ye-lithium. Inezinzuzo ezilandelayo ezibalulekile:


1. I-Die-cutting enembe kakhulu: Qinisekisa usayizi onembile wesiqeshana se-pole kanye ne-diaphragm, wehlise udoti wezinto ezibonakalayo futhi uthuthukise ukuhambisana kwebhethri.
2. Ukuvunguza okuzinzile: Indlela yokuvunguza elungiselelwe kanye nesistimu yokulawula iqinisekisa ukwakheka okuyisisekelo okuqinile futhi okuzinzile, kunciphisa ukumelana kwangaphakathi futhi ithuthukisa ukusebenza kwebhethri.
3. Ileveli esebenza kahle kakhulu: Idizayini yokulevelisa ehlukile yenza ingaphezulu lama-cores licaba, kunciphisa ukucindezeleka kwangaphakathi okungalingani, futhi andise impilo yebhethri.
4. Ukulawula okuhlakaniphile: Ifakwe isikhombimsebenzisi sokusebenzisana esithuthukisiwe somuntu nekhompiyutha, ibona ukulungiselelwa okunembile kwepharamitha nokuqapha kwesikhathi sangempela, ukusebenza okulula nokugcinwa kalula.
5. Uhla olubanzi lokuhambisana: lungenza futhi 18, 21, 32, 46, 50, 60 wonke amamodeli amaseli ebhethri, ukuhlangabezana nezidingo zakho ezihlukahlukene zokukhiqiza.

I-Lithium - Isisetshenziswa Sebhethri se-Ion
Khetha i-Yixinfeng laser die-cutting, umshini wokusonga nokusunduza ukuletha ikhwalithi ephezulu nokusebenza kahle kokukhiqizwa kwebhethri yakho ye-lithium!