Pali mitundu itatu ikuluikulu yamabatire a lithiamu-ion(li-ion): ma cell a cylindrical, ma cell a prismatic, ndi ma cell cell.M'makampani a EV, chitukuko chodalirika kwambiri chimazungulira ma cell a cylindrical ndi prismatic.Ngakhale mawonekedwe a batri ya cylindrical akhala akudziwika kwambiri m'zaka zaposachedwa, zifukwa zingapo zimasonyeza kuti maselo a prismatic angatenge.

Kodi Ndi ChiyaniMaselo a Prismatic

Aprismatic cellndi selo lomwe chemistry yake imatsekeredwa m'bokosi lolimba.Mawonekedwe ake amakona anayi amalola kuti asungidwe bwino mayunitsi angapo mugawo la batri.Pali mitundu iwiri ya maselo a prismatic: mapepala a electrode mkati mwa casing (anode, separator, cathode) amapakidwa kapena kukulungidwa ndikuphwanyidwa.

Pa voliyumu yomweyi, ma cell a prismatic omwe asungidwa amatha kutulutsa mphamvu zambiri nthawi imodzi, kupereka magwiridwe antchito abwino, pomwe ma cell a prismatic omwe ali ndi mphamvu zambiri, zomwe zimapereka kulimba kwambiri.

Maselo a prismatic amagwiritsidwa ntchito makamaka pamakina osungira mphamvu ndi magalimoto amagetsi.Kukula kwawo kwakukulu kumawapangitsa kukhala oyipa pazida zing'onozing'ono monga ma e-bike ndi mafoni am'manja.Chifukwa chake, ndizoyenera kugwiritsa ntchito kwambiri mphamvu zamagetsi.

Kodi Ma Cylindrical Cell

Acylindrical cellndi selo lotsekeredwa mu chitini cholimba cha silinda.Ma cylindrical cell ndi ang'onoang'ono komanso ozungulira, zomwe zimapangitsa kuti zitheke kuziyika mu zida zamitundu yonse.Mosiyana ndi mawonekedwe ena a batri, mawonekedwe awo amalepheretsa kutupa, chinthu chosafunikira m'mabatire pomwe mpweya umadziunjikira mu casing.

Ma cell a cylindrical adayamba kugwiritsidwa ntchito m'ma laputopu, omwe amakhala pakati pa ma cell atatu ndi asanu ndi anayi.Kenako adadziwika bwino pomwe Tesla adawagwiritsa ntchito pamagalimoto ake oyamba amagetsi (Roadster ndi Model S), yomwe inali ndi ma cell pakati pa 6,000 ndi 9,000.

Ma cell a Cylindrical amagwiritsidwanso ntchito mu e-njinga, zida zamankhwala, ndi ma satellite.Zimakhalanso zofunikira pakufufuza mlengalenga chifukwa cha mawonekedwe awo;ma cell ena angapundukidwe ndi kuthamanga kwa mumlengalenga.Mwachitsanzo, Rover yomaliza yomwe inatumizidwa ku Mars imagwira ntchito pogwiritsa ntchito ma cylindrical cell.Magalimoto amtundu wa Formula E othamanga kwambiri amagwiritsa ntchito ma cell ofanana ndi rover mu batire yawo.

Kusiyana Kwakukulu Pakati pa Ma cell a Prismatic ndi Cylindrical

Mawonekedwe si chinthu chokhacho chomwe chimasiyanitsa maselo a prismatic ndi cylindrical.Kusiyana kwina kofunikira kumaphatikizapo kukula kwake, kuchuluka kwa zolumikizira zamagetsi, ndi mphamvu zake.

Kukula

Maselo a prismatic ndi akulu kwambiri kuposa ma cylindrical cell motero amakhala ndi mphamvu zambiri pa cell.Kuti timvetse bwino kusiyana kwake, selo limodzi la prismatic likhoza kukhala ndi mphamvu zofanana ndi 20 mpaka 100 cylindrical cell.Kukula kwakung'ono kwa ma cylindrical cell kumatanthauza kuti atha kugwiritsidwa ntchito pazinthu zomwe zimafuna mphamvu zochepa.Chifukwa chake, amagwiritsidwa ntchito pazinthu zambiri.

Kulumikizana

Chifukwa ma cell a prismatic ndi akulu kuposa ma cylindrical cell, ma cell ochepa amafunikira kuti akwaniritse mphamvu zomwezo.Izi zikutanthauza kuti pa voliyumu yomweyi, mabatire omwe amagwiritsa ntchito ma cell a prismatic amakhala ndi zolumikizira zochepa zamagetsi zomwe zimafunikira kuwotcherera.Uwu ndi mwayi waukulu kwa maselo a prismatic chifukwa pali mwayi wochepa wopanga zolakwika.

Mphamvu

Ma cell a cylindrical amatha kusunga mphamvu zochepa kuposa ma cell a prismatic, koma ali ndi mphamvu zambiri.Izi zikutanthauza kuti ma cylindrical cell amatha kutulutsa mphamvu zawo mwachangu kuposa ma cell a prismatic.Chifukwa chake ndikuti ali ndi maulumikizidwe ambiri pa ola limodzi (Ah).Zotsatira zake, ma cylindrical cell ndi abwino kwa ntchito zogwira ntchito kwambiri pomwe ma prismatic cell ndi abwino kukhathamiritsa mphamvu zamagetsi.

Zitsanzo zamabatire ochita bwino kwambiri akuphatikiza magalimoto othamanga a Formula E ndi helikopita ya Ingenuity pa Mars.Zonsezi zimafuna machitidwe apamwamba kwambiri m'malo ovuta kwambiri.

Chifukwa chiyani Ma cell a Prismatic Atha Kutenga

Makampani a EV amasintha mwachangu, ndipo sizikudziwika ngati ma cell a prismatic kapena ma cylindrical cell apambana.Pakalipano, maselo a cylindrical akufalikira kwambiri mu makampani a EV, koma pali zifukwa zoganizira kuti maselo a prismatic adzapeza kutchuka.

Choyamba, ma cell a prismatic amapereka mwayi wotsitsa mtengo pochepetsa kuchuluka kwa njira zopangira.Maonekedwe awo amachititsa kuti apange maselo akuluakulu, omwe amachepetsa chiwerengero cha magetsi omwe amafunika kutsukidwa ndi kuwotcherera.

Mabatire a prismatic ndiwonso mawonekedwe abwino a chemistry ya lithiamu-iron phosphate (LFP), kusakaniza kwa zinthu zomwe ndizotsika mtengo komanso zofikirika.Mosiyana ndi ma chemistry ena, mabatire a LFP amagwiritsa ntchito zinthu zomwe zili paliponse padziko lapansi.Safuna zida zosowa komanso zodula monga faifi tambala ndi cobalt zomwe zimayendetsa mtengo wamitundu ina m'mwamba.

Pali zizindikiro zamphamvu kuti LFP prismatic maselo akutuluka.Ku Asia, opanga EV amagwiritsa ntchito kale mabatire a LiFePO4, mtundu wa batri ya LFP mumtundu wa prismatic.Tesla adanenanso kuti wayamba kugwiritsa ntchito mabatire a prismatic opangidwa ku China pamitundu yofananira yamagalimoto ake.

Chemistry ya LFP ili ndi zovuta zake, komabe.Limodzi, lili ndi mphamvu zochepa kuposa ma chemistries ena omwe akugwiritsidwa ntchito pano, motero, silingagwiritsidwe ntchito pamagalimoto ochita bwino kwambiri ngati magalimoto amagetsi a Formula 1.Kuphatikiza apo, makina oyendetsa mabatire (BMS) amakhala ndi nthawi yovuta kulosera kuchuluka kwa batire.

Mutha kuwona vidiyoyi kuti mudziwe zambiri zaLFPchemistry ndi chifukwa chake ikukulirakulira.