Kufakwe amabhethri amasha ku-International Space Station: I-Li-ion, i-357 kWh. I-NiMH endala ilibangise eMhlabeni
Ibhethri ye-nickel metal hydride engu-2,9 tonne yahlakazwa futhi yakhululwa ku-International Space Station (ISS). Kulindeleke ukuthi zizungeza uMhlaba iminyaka emibili kuya kwemine bese zisha emkhathini. Amamojula angama-48 anamaseli e-nickel-metal hydride athathelwa indawo ngamamojula angama-24 anamaseli e-lithium-ion.
Ibhethri le-ISS: LiCoO2, 357 kWh, imijikelezo yemisebenzi efika kuma-60
Amabhethri e-NiMH asetshenziswe ku-ISS ukugcina amandla akhiqizwa amaseli e-photovoltaic. Omdala kunawo wonke ubesenkonzweni kusukela ngo-2006, ngakho-ke i-NASA yanquma ukuthi kufanele ishintshwe lapho isifinyelela impilo yayo ewusizo. Kwanqunywa ukuthi amabhethri amasha azosuselwa kumaseli e-lithium-ion, anikeza ukuminyana kwamandla okuphezulu ngeyunithi ngayinye yesisindo nevolumu.
Kwakucatshangwa ukuthi izinto ezintsha kumele zimelane neminyaka eyi-10 nemijikelezo yokusebenza engama-60futhi ekupheleni kwempilo banikeze ubuncane obungu-48 Ah esikhundleni sika-134 Ah wangempela (0,5 kWh). Njengoba ubona, i-NASA ivumelana nokucekelwa phansi okukhulu kunabenzi be-EV ngoba amaphesenti angama-36 kuphela omthamo wangempela abhekwa njengokuphela kwempilo. Ezimotweni zikagesi, umkhawulo oshintshwayo uvame ukusethwa cishe kumaphesenti angama-65-70 womthamo webhethri lemboni.
Emjikelezweni wokuhlola, kwanqunywa ukuthi amabhethri (ngokunembile kakhulu: amamojula e-ORU) azokwakhiwa ngesisekelo samaseli. USolwazi Yuasa ngama-cathodes enziwe nge-lithium-cobalt oxide (LiCoO2). Ngamunye wabo unamaseli anjalo angama-30, ngakho-ke imojuli eyodwa inamandla angu-14,87 kWh, isethi egcwele yamabhethri okugcina amandla afika ku-357 kWh... Njengamaseli e-LiCoO2 zingaqhuma uma zonakalisiwe, kuye kwenziwa izivivinyo eziningi, okuhlanganisa nokuziphatha kwazo lapho zibhoboza futhi zishajwa kabusha.
Umsebenzi wokushintsha ibhethri waqala ngo-2016 futhi waphela ngoLwesine 11 Mashi. Iphalethi elinamabhethri asekelwe ku-48 NiMH yethulwa ngaseMhlabeni - esithombeni abonakala kumakhilomitha angu-427 ngaphezu kwe-Chile.... Ngemva kokukhululwa, ihambe ngesivinini esingu-7,7 km/s emzileni oncipha kancane kancane. I-NASA ilinganisela lokho eminyakeni emibili kuya kwemine impahla izongena emkhathini ishe kuwo "Ngaphandle kokulimala." Uma sicabangela isisindo sekhithi (amathani angu-2,9) kanye nesakhiwo sayo (amamojula axhumene), kufanele silindele imoto ekhanyayo edilika ibe yimvula yemfucumfucu.
Ngethemba, ngoba amathani angu-2,9 isisindo seSUV enkulu ngempela. Futhi "udoti" osinda kakhulu okhishwe ku-International Space Station...
Iphalethi enamamojula ebhethri e-ORU / NiMH aphethwe yi-Canadarm2 arm umzuzu ngaphambi kokukhululwa (c) NASA
Iphalethi elinamabhethri e-NiMH 427 km ngaphezu kwe-NASA Chile (c)
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