Amathebhu ku-Pouch Lithium-Ion Amabhethri: Ukubuka Konke Okuphelele

Amathebhu ayizingxenye ezibalulekile kumabhethri e-lithium-ion esikhwameni, asebenza njengamabhuloho okuhambisa phakathi kwama-electrode angaphakathi ebhethri kanye namasekethe angaphandle. Ngaphezu nje kwezixhumi ezilula, adlala indima ebalulekile ekuqinisekiseni ukuphepha kwebhethri, ukusebenza kokuvala, kanye nokusebenza kahle kokusebenza. Lesi sihloko sihlola izinhlobo, izinto zokwakha, izici zokusebenza, kanye nokusetshenziswa kwalezi zingxenye ezibalulekile, sinikeza ukuqonda okusebenzayo kubakhiqizi nonjiniyela.

Ayini Amathebhu Ebhethri?

Embindini wawo, amathebhu ebhethri ayizakhiwo ezihlanganisiwe eziqukethe izingxenye ezimbili ezibalulekile: umucu wensimbi kanye nefilimu yepulasitiki (i-tab glue). Umucu wensimbi usebenza njengomqhubi, udlulisa ugesi phakathi kwama-electrode amahle/amabi ebhethri kanye namadivayisi angaphandle. Ifilimu yepulasitiki, okwamanje, inikeza uphawu lokuvimbela ukuvuza kwe-electrolyte futhi ivikela umucu wensimbi emijikelezweni emifushane.

1. Amathebhu amahlengokuvamile zenziwe nge-aluminium (Al) ngenxa yokuguquguquka kwayo okuhle kakhulu kanye nokumelana nokugqwala.
2. Amathebhu angalungilesebenzisa ithusi elifakwe i-nickel (Ni) noma ithusi elifakwe i-nickel (Ni-Cu). Amathebhu e-nickel avamile kumadivayisi amancane edijithali, kuyilapho amathebhu ethusi afakwe i-nickel—anenani eliphezulu lokuthwala amandla kagesi—akhethwa kakhulu kumabhethri kagesi kanye nezinhlelo zokusebenza ezisezingeni eliphezulu.

Ukuhlukaniswa kwamathebhu

Amathebhu ahlukaniswe ngokwezinto zawo, uhlobo lokunamathela, kanye nokupakishwa, ngalinye lifanela izimo ezithile zokusetshenziswa:

1. Ngezinto Zokugoqa Insimbi

1. Amathebhu e-aluminium (Al): Isetshenziswa kakhulu kuma-electrode amahle. Angasebenza futhi njengama-electrode amabi kumabhethri anama-anode e-lithium titanate.
2. Amathebhu e-Nickel (Ni): Kuphela kuma-electrode angalungile kumadivayisi anamandla aphansi njengama-smartphone, amaphilisi, namabhange kagesi.
3. Amathebhu e-nickel-plated copper (Ni-Cu).: Yenzelwe ama-electrode angemihle kumabhethri kagesi (isb., izimoto zikagesi) kanye namabhethri anezinga eliphezulu, okuhlanganisa ukuhanjiswa kwethusi nokumelana nokugqwala kwe-nickel.

2. Ngohlobo Lwe-Adhesive Tab

Izimakethe zasekhaya zihlukanisa izinamathiseli zamathebhu ngombala, okubonisa umehluko wekhwalithi kanye nokusetshenziswa:

1. Amathebhu anamathelayo amnyama: Kusetshenziswa kumabhethri edijithali asezingeni eliphansi kuya kweliphakathi. Isakhiwo sawo (i-PEN film core enezendlalelo ze-PP eziguquliwe) sibeka engcupheni yokuqhekeka ngokuhamba kwesikhathi.
2. Amathebhu okunamathela aphuzi: Kuvamile kumabhethri kagesi aphakathi nendawo. Nakuba kulula ukuwavala, umongo wawo ongalukiwe ungamunca umswakama, okuholela ekuvuvukeni kwebhethri.
3. Amathebhu okunamathela amhlophe: Kukhethwa kakhulu kumadivayisi edijithali aphezulu, amabhethri kagesi, namabhethri anezinga eliphezulu. Kutholakala ngemiklamo eyodwa, emithathu, noma emihlanu, izinamathiseli ezimhlophe ezinezingqimba ezintathu (ezinama-core e-PP) zinikeza ukuvala okuphezulu futhi azinangozi yokuhlukanisa.
4. Amathebhu asongiwe: Imichilo eqhubekayo eboshwe ibe imiqulu, ilungele imigqa yokukhiqiza ezenzakalelayo.
5. Amathebhu eshidi: Amathebhu ngamanye abekwe phakathi kwamashidi epulasitiki, afanele izinqubo ezenziwa ngesandla noma ezizenzakalelayo.

3. Ngokupakishwa

1. Amathebhu asongiwe: Imichilo eqhubekayo eboshwe ibe imiqulu, ilungele imigqa yokukhiqiza ezenzakalelayo.
2. Amathebhu eshidi: Amathebhu ngamanye abekwe phakathi kwamashidi epulasitiki, afanele izinqubo ezenziwa ngesandla noma ezizenzakalelayo.

Izinto Ezibalulekile Nokusebenza

Ukusebenza kwamathebhu kuncike kakhulu ezintweni ezisetshenziswayo:

1. Imichilo yensimbi: I-Aluminium (i-alloy ye-AL1050) kanye nethusi (ithusi elingenawo umoya-mpilo le-TU1) kuyathandwa ngenxa yokuqhuba kwazo, ukuguquguquka kwazo, kanye nokumelana nokugqwala. Ukufakwa kwe-nickel kuma-strips ethusi kuvimbela ukugqwala futhi kuthuthukisa ukunamathela.
2. Izinamathiseli zamathebhu: Iningi lezinti zokunamathela lithunyelwa livela eJapane, njengoba izinto ze-PP zasekhaya zilwela ukuhlangabezana nezidingo eziqinile zesisindo sama-molecule. Izinti zokunamathela ezisezingeni eliphezulu (isb., izinti ezimhlophe ezinezingqimba ezintathu) zilinganisela ukumelana nokushisa (iphuzu lokuncibilika ~147°C) kanye nokuguquguquka, okuqinisekisa ukuvalwa okuthembekile ngamafilimu epulasitiki e-aluminium.

Ukukhiqiza kanye nokulawula ikhwalithi

Ukukhiqiza amathebhu asebenza kahle kudinga ukunemba:

1. Izinqubo zokufaka iplati: Amathebhu ethusi afakwe i-nickel asebenzisa i-electroplating (ubukhulu obungu-1.8±0.3μm) noma i-electroless plating (ubukhulu obungu-1.0±0.3μm) ukuqinisekisa ukumbozwa okufanayo.
2. Ukusika imiphetho: Imichilo yensimbi ejiyile kuno-0.2mm idinga ukunqunywa komphetho ukuze kugwenywe izinkinga zokuvikela kanye nezingozi zokuvuza.
3. Ukuhlolwa okuqinile:
   1. Ukuhlolwa kokucwiliswa kwe-electrolyteAmathebhu kumele agcine amandla okuvala >15N/15mm ngemva kwamahora angu-24 ku-85°C.
   2. Ukuhlolwa kokugobaAmathebhu kumele amelane nokugoba okungu-5-7 (kuye ngokuthi ubukhulu bunjani) ukuqinisekisa ukuqina ezindaweni ezidlidlizayo (isb., izimoto zikagesi).

Izindlela Zokuxhumanisa Amathebhu

Ukuxhuma amathebhu kumasekethe angaphandle kuhilela amasu amaningana:

1. Ukubopha ngomshini: Ukubhoboza nokusika kunikeza ukuxhumana okungabizi kakhulu nokuqinile kodwa kudinga ukulawulwa kokujiya ngokucophelela.
2. Ukushisela: I-solder ye-M51 esezingeni eliphansi isebenzela izinsimbi ezingafani (isb., ithusi ne-aluminium) kodwa iyabiza.
3. Ukushisela nge-Ultrasonic: Indlela ekhethwayo yamabhethri kagesi, esebenzisa ukudlidliza okuvama kakhulu ukubopha ama-tab foil amancane (0.01mm) ngaphandle kokushisa ngokweqile.

Isiphetho

Amathebhu angaba mancane, kodwa ukwakheka kwawo kanye nekhwalithi yawo kuthinta ngqo ukusebenza kwebhethri lesikhwama. Njengoba isidingo sikhula samabhethri aphephile futhi asebenza kahle ezimotweni zikagesi kanye nokugcinwa kwamandla, ukuthuthuka kwezinto zamathebhu (isb., izinamathiseli ezinezingqimba eziningi) kanye nokukhiqizwa (isb., ukugoba ngokunemba) kuzohlala kubalulekile. Ukuqonda izici zamathebhu kuyisihluthulelo sokwenza ngcono ukuthembeka kwebhethri kanye nokuphila isikhathi eside ezinhlelweni ezahlukahlukene.