Ma Tabs mu Pouch Lithium-Ion Batteries: Chidule Chathunthu

Ma tabu ndi zinthu zofunika kwambiri m'mabatire a lithiamu-ion m'thumba, omwe amagwira ntchito ngati mipata yolumikizira pakati pa ma electrode amkati mwa batire ndi ma circuits akunja. Kupatula kungolumikiza zinthu zosavuta, amachita gawo lofunikira pakuwonetsetsa kuti batire ndi yotetezeka, imagwira ntchito bwino, komanso imagwira bwino ntchito. Nkhaniyi ikufotokoza mitundu, zipangizo, mawonekedwe a magwiridwe antchito, ndi momwe zinthu zofunikazi zimagwiritsidwira ntchito, popereka chidziwitso chothandiza kwa opanga ndi mainjiniya.

Kodi Ma Batri a Batri Ndi Chiyani?

Pakati pawo, mabatire ndi zinthu zopangidwa ndi zigawo ziwiri zofunika: chingwe chachitsulo ndi filimu yapulasitiki (chomatira cha tabu). Chingwe chachitsulo chimagwira ntchito ngati kondakitala, kusamutsa magetsi pakati pa ma electrode abwino/oipa a batire ndi zida zakunja. Filimu yapulasitiki, pakadali pano, imapereka chisindikizo kuti isatuluke ma electrolyte ndipo imateteza chingwe chachitsulo ku ma circuits afupi.

1. Ma tabu abwinonthawi zambiri amapangidwa ndi aluminiyamu (Al) chifukwa cha mphamvu yake yabwino kwambiri yoyendetsera mpweya komanso kukana dzimbiri.
2. Ma tabu oipaGwiritsani ntchito nickel (Ni) kapena nickel-plated copper (Ni-Cu). Ma nickel tabu ndi ofala kwambiri m'zida zazing'ono zama digito, pomwe ma nickel-plated copper tabu—omwe ali ndi mtengo wapatali chifukwa cha mphamvu yawo yonyamula magetsi—ndi omwe amakondedwa kwambiri pamabatire amagetsi komanso ntchito zapamwamba.

Kugawa Ma Tab

Ma tabu amagawidwa m'magulu kutengera zinthu zawo, mtundu wa zomatira, ndi ma phukusi, ndipo chilichonse chikugwirizana ndi zochitika zinazake zogwiritsidwa ntchito:

1. Ndi Chitsulo Chopangidwa ndi Zitsulo

1. Ma tabu a aluminiyamu (Al): Amagwiritsidwa ntchito makamaka pa ma electrode abwino. Angagwirenso ntchito ngati ma electrode oipa m'mabatire okhala ndi ma anode a lithiamu titanate.
2. Ma tabu a nikeli (Ni): Imangopezeka m'ma electrode oipa omwe ali m'zida zamagetsi zochepa monga mafoni a m'manja, mapiritsi, ndi mabanki amagetsi.
3. Nickel-plated mkuwa (Ni-Cu) tabu: Yopangidwira ma electrode oipa m'mabatire amagetsi (monga magalimoto amagetsi) ndi mabatire apamwamba, kuphatikiza mphamvu ya mkuwa ndi kukana dzimbiri kwa nickel.

2. Ndi Mtundu wa Tab Adhesive

Misika ya m'nyumba imagawa zomatira za tabu malinga ndi mtundu, kusonyeza kusiyana kwa ubwino ndi kagwiritsidwe ntchito:

1. Ma tabu akuda omatira: Amagwiritsidwa ntchito m'mabatire a digito otsika mpaka apakati. Kapangidwe kawo (gawo la filimu ya PEN yokhala ndi zigawo za PP zosinthidwa) kamakhala pachiwopsezo cha kusokonekera pakapita nthawi.
2. Ma tabu achikasu omatira: Yofala m'mabatire amphamvu apakatikati. Ngakhale kuti ndi osavuta kuwatseka, pakati pawo osalukidwa amatha kuyamwa chinyezi, zomwe zimapangitsa kuti batire itukuke.
3. Ma tabu oyera omatira: Amakonda kwambiri zida zamakono zapamwamba, mabatire amphamvu, ndi mabatire apamwamba kwambiri. Amapezeka m'mapangidwe amodzi, atatu, kapena asanu, zomatira zoyera za magawo atatu (zokhala ndi ma PP cores) zimapereka kutseka kwabwino kwambiri komanso palibe chiopsezo cha delamination.
4. Ma tabu ozungulira: Zingwe zopitilira zomangiriridwa kukhala mipukutu, zoyenera kupanga mizere yokha.
5. Mapepala a mapepala: Ma tabu amodzi ndi amodzi omwe amaikidwa pakati pa mapepala apulasitiki, oyenera ntchito zamanja kapena zodzichitira zokha.

3. Ndi Kupaka

1. Ma tabu ozungulira: Zingwe zopitilira zomangiriridwa kukhala mipukutu, zoyenera kupanga mizere yokha.
2. Mapepala a mapepala: Ma tabu amodzi ndi amodzi omwe amaikidwa pakati pa mapepala apulasitiki, oyenera ntchito zamanja kapena zodzichitira zokha.

Zipangizo Zofunika ndi Magwiridwe Abwino

Kugwira ntchito kwa ma tabu kumadalira kwambiri zinthu zomwe zimapanga:

1. Zingwe zachitsulo: Aluminiyamu (AL1050 alloy) ndi mkuwa (TU1 oxygen-free copper) zimakondedwa chifukwa cha mphamvu zawo zoyendetsera mpweya, kusinthasintha kwake, komanso kukana dzimbiri. Kupaka nickel pa mipiringidzo ya mkuwa kumalepheretsa okosijeni ndipo kumawonjezera kuthekera kosungunula.
2. Zomatira za patebulo: Magulu ambiri a zomatira amatumizidwa kuchokera ku Japan, chifukwa zipangizo za PP zapakhomo zimavutika kukwaniritsa zofunikira kwambiri za kulemera kwa mamolekyu. Magulu abwino kwambiri (monga zomatira zoyera za magawo atatu) amalimbitsa kukana kutentha (kusungunuka ~147°C) komanso kusinthasintha, zomwe zimapangitsa kuti zitsekedwe bwino ndi mafilimu apulasitiki a aluminiyamu.

Kupanga ndi Kulamulira Ubwino

Kupanga ma tabu ogwira ntchito bwino kumafuna kulondola:

1. Njira zopangira ma plating: Ma tabu amkuwa opangidwa ndi nickel amagwiritsa ntchito electroplating (1.8±0.3μm makulidwe) kapena electroless plating (1.0±0.3μm makulidwe) kuti atsimikizire kuti akuphimbidwa mofanana.
2. Kudula m'mphepete: Zingwe zachitsulo zokhuthala kuposa 0.2mm zimafunika kudula m'mphepete kuti zipewe mavuto okhudzana ndi kutentha ndi zoopsa zotuluka.
3. Kuyesa kokhwima:
   1. Mayeso omiza mu electrolyteMa Tab ayenera kukhala ndi mphamvu yotseka >15N/15mm patatha maola 24 pa kutentha kwa 85°C.
   2. Mayeso opindikaMa tabu ayenera kupirira kupindika kwa 5-7 (kutengera makulidwe) kuti atsimikizire kulimba m'malo ogwedezeka (monga magalimoto amagetsi).

Njira Zolumikizira Ma Tab

Kulumikiza ma tabu ku ma circuits akunja kumafuna njira zingapo:

1. Kumangirira kwa makina: Kuboola ndi kuluka kumapereka maulumikizidwe otsika mtengo komanso amphamvu koma kumafuna kuwongolera bwino makulidwe.
2. Kusungunula: Chotsukira cha M51 chotentha pang'ono chimagwira ntchito pa zitsulo zosiyana (monga mkuwa ndi aluminiyamu) koma ndi chokwera mtengo.
3. Kuwotcherera kwa akupanga: Njira yabwino kwambiri yogwiritsira ntchito mabatire amagetsi, pogwiritsa ntchito kugwedezeka kwa ma frequency apamwamba kuti amangirire ma tape foil opyapyala (0.01mm) popanda kutentha kwambiri.

Mapeto

Ma tabu akhoza kukhala ang'onoang'ono, koma kapangidwe kake ndi khalidwe lawo zimakhudza mwachindunji magwiridwe antchito a batri ya thumba. Pamene kufunikira kwa mabatire otetezeka komanso ogwira ntchito bwino m'magalimoto amagetsi komanso kusungira mphamvu kukukulirakulira, kupita patsogolo kwa zipangizo zama tabu (monga zomatira zambiri) ndi kupanga (monga ma plating olondola) kudzakhalabe kofunika kwambiri. Kumvetsetsa makhalidwe a tabu ndikofunikira kwambiri pakukweza kudalirika kwa batri komanso kukhala ndi moyo wautali m'magwiritsidwe osiyanasiyana.