Pali mitundu itatu ikuluikulu yamabatire a lithiamu-ion(li-ion): maselo ozungulira, maselo a prismatic, ndi maselo a thumba. Mu makampani opanga ma EV, chitukuko chodalirika kwambiri chimayang'ana maselo ozungulira ndi a prismatic. Ngakhale kuti mawonekedwe a batri ozungulira akhala otchuka kwambiri m'zaka zaposachedwa, zinthu zingapo zikusonyeza kuti maselo a prismatic angatenge malo.

Kodi ndi chiyaniMaselo a Prismatic

Aselo la prismaticndi selo lomwe mankhwala ake ali mu chivundikiro cholimba. Mawonekedwe ake amakona anayi amalola kuyika bwino mayunitsi angapo mu module ya batri. Pali mitundu iwiri ya maselo a prismatic: mapepala a electrode mkati mwa chivundikirocho (anode, separator, cathode) amaikidwa mu chivundikirocho kapena kuzunguliridwa ndi kuphwanyika.

Pa kuchuluka komweko, maselo a prismatic omangidwa pamodzi amatha kutulutsa mphamvu zambiri nthawi imodzi, zomwe zimapangitsa kuti ntchito ikhale yabwino, pomwe maselo a prismatic ophwanyika amakhala ndi mphamvu zambiri, zomwe zimapangitsa kuti ikhale yolimba.

Maselo a Prismatic amagwiritsidwa ntchito kwambiri m'makina osungira mphamvu ndi magalimoto amagetsi. Kukula kwawo kwakukulu kumapangitsa kuti asagwiritsidwe ntchito kwambiri pazida zazing'ono monga ma e-bikes ndi mafoni a m'manja. Chifukwa chake, ndi oyenera kugwiritsa ntchito mphamvu zambiri.

Kodi Maselo a Cylindrical Ndi Chiyani?

Aselo lozungulirandi selo lomwe lili mkati mwa chidebe cholimba cha silinda. Maselo ozungulira ndi ang'onoang'ono komanso ozungulira, zomwe zimapangitsa kuti athe kuwayika m'zida zamitundu yonse. Mosiyana ndi mitundu ina ya mabatire, mawonekedwe awo amaletsa kutupa, chinthu chosafunikira m'mabatire pomwe mpweya umasonkhana m'chidebecho.

Maselo ozungulira anayamba kugwiritsidwa ntchito m'makompyuta apakompyuta, omwe anali ndi maselo pakati pa atatu ndi asanu ndi anayi. Kenako anayamba kutchuka kwambiri Tesla atawagwiritsa ntchito m'magalimoto ake oyamba amagetsi (Roadster ndi Model S), omwe anali ndi maselo pakati pa 6,000 ndi 9,000.

Maselo a cylindrical amagwiritsidwanso ntchito mu ma e-bikes, zida zamankhwala, ndi ma satellite. Ndi ofunikiranso pakufufuza mlengalenga chifukwa cha mawonekedwe awo; mawonekedwe ena a maselo angasokonezedwe ndi kuthamanga kwa mpweya. Mwachitsanzo, Rover yomaliza yomwe idatumizidwa ku Mars imagwira ntchito pogwiritsa ntchito maselo a cylindrical. Magalimoto amagetsi othamanga a Formula E amagwiritsa ntchito maselo omwewo monga rover mu batire yawo.

Kusiyana Kwakukulu Pakati pa Maselo a Prismatic ndi Cylindrical

Mawonekedwe si chinthu chokhacho chomwe chimasiyanitsa maselo a prismatic ndi cylindrical. Kusiyana kwina kwakukulu kumaphatikizapo kukula kwawo, kuchuluka kwa maulumikizidwe amagetsi, ndi mphamvu zomwe zimatulutsa.

Kukula

Maselo a Prismatic ndi akuluakulu kwambiri kuposa maselo a cylindrical motero amakhala ndi mphamvu zambiri pa selo iliyonse. Kuti timvetse bwino kusiyana kwake, selo limodzi la prismatic likhoza kukhala ndi mphamvu yofanana ndi maselo a cylindrical 20 mpaka 100. Kukula kochepa kwa maselo a cylindrical kumatanthauza kuti angagwiritsidwe ntchito pazinthu zomwe zimafuna mphamvu zochepa. Chifukwa chake, amagwiritsidwa ntchito pazinthu zambiri.

Maulalo

Popeza maselo a prismatic ndi akuluakulu kuposa maselo a cylindrical, maselo ochepa amafunika kuti apeze mphamvu yofanana. Izi zikutanthauza kuti pa voliyumu yomweyo, mabatire omwe amagwiritsa ntchito maselo a prismatic ali ndi maulumikizidwe ochepa amagetsi omwe amafunika kuwongoleredwa. Uwu ndi mwayi waukulu kwa maselo a prismatic chifukwa pali mwayi wochepa wopanga zolakwika.

Mphamvu

Maselo a cylindrical amatha kusunga mphamvu zochepa kuposa maselo a prismatic, koma ali ndi mphamvu zambiri. Izi zikutanthauza kuti maselo a cylindrical amatha kutulutsa mphamvu zawo mwachangu kuposa maselo a prismatic. Chifukwa chake ndi chakuti ali ndi maulumikizidwe ambiri pa amp-ola (Ah). Zotsatira zake, maselo a cylindrical ndi abwino kwambiri kuti agwiritsidwe ntchito bwino pomwe maselo a prismatic ndi abwino kwambiri kuti azigwiritsa ntchito bwino mphamvu.

Zitsanzo za mabatire ogwira ntchito bwino kwambiri ndi monga magalimoto a mpikisano wa Formula E ndi helikopita ya Ingenuity pa Mars. Zonsezi zimafuna kuchita bwino kwambiri m'malo ovuta kwambiri.

Chifukwa Chake Maselo a Prismatic Angakhale Akulamulira

Makampani opanga ma EV akusintha mwachangu, ndipo sizikudziwika ngati maselo a prismatic kapena maselo a cylindrical adzapambana. Pakadali pano, maselo a cylindrical ndi ofala kwambiri mumakampani opanga ma EV, koma pali zifukwa zoganizira kuti maselo a prismatic adzatchuka kwambiri.

Choyamba, maselo a prismatic amapereka mwayi wochepetsa ndalama pochepetsa kuchuluka kwa njira zopangira. Kapangidwe kawo kamapangitsa kuti zikhale zotheka kupanga maselo akuluakulu, zomwe zimachepetsa kuchuluka kwa maulumikizidwe amagetsi omwe amafunika kutsukidwa ndi kuwotcherera.

Mabatire a Prismatic nawonso ndi mtundu woyenera kwambiri wa lithiamu-iron phosphate (LFP), kuphatikiza kwa zinthu zotsika mtengo komanso zosavuta kupeza. Mosiyana ndi ma chemistry ena, mabatire a LFP amagwiritsa ntchito zinthu zomwe zili paliponse padziko lapansi. Safuna zinthu zosowa komanso zodula monga nickel ndi cobalt zomwe zimakweza mtengo wa maselo ena.

Pali zizindikiro zamphamvu zosonyeza kuti maselo a LFP prismatic akuyamba kuonekera. Ku Asia, opanga magalimoto a EV amagwiritsa ntchito kale mabatire a LiFePO4, mtundu wa batire ya LFP mu mtundu wa prismatic. Tesla inanenanso kuti yayamba kugwiritsa ntchito mabatire a prismatic opangidwa ku China pamitundu yokhazikika yamagalimoto ake.

Komabe, mankhwala a LFP ali ndi zovuta zake. Choyamba, ali ndi mphamvu zochepa kuposa mankhwala ena omwe akugwiritsidwa ntchito pano ndipo, motero, sangagwiritsidwe ntchito pamagalimoto ogwira ntchito bwino monga magalimoto amagetsi a Formula 1. Kuphatikiza apo, machitidwe oyang'anira mabatire (BMS) amavutika kuneneratu kuchuluka kwa chaji ya batire.

Mutha kuonera vidiyo iyi kuti mudziwe zambiri zaLFPchemistry ndi chifukwa chake ikutchuka kwambiri.