I-Graphite Anode ne-Cathode Materials yamabhethri e-EV

(I-Graphite Anode ne-Cathode Materials yamabhethri e-EV)

Ngobuningi bayo obuphezulu bamandla, conductivity kagesi okuhle futhi ukuthengeka, I-graphite yi-anode ne-cathode impahla yokuzikhethela yemoto kagesi (EV) amabhethri. Ngesikhathi sokushaja, I-lithium ion isuka ku-cathode iye ku-anode ngesivimba se-electrolyte esihlukanisa lawa ma-electrode. I-anode inika amandla ibhethri ukuthi ligcine futhi lilethe amandla ayo ngokubamba i-lithium ion kumasayithi angenalutho ku-crystal lattice., inqubo eyaziwa ngokuthi intercalation.

Ngesikhathi sokukhipha, i-lithium ion ikhishwa ku-anode futhi idluliselwe ku-cathode. Ukudluliswa okubuyiselwe emuva kwe-lithium kusuka ku-anode kuya ku-cathode kwenziwa kwenzeke ngokwakhiwa kwe-interphase eqinile ye-electrolyte. (BE) ekuxhumaneni phakathi kwezinto ezisebenzayo zegraphite kanye ne-electrolyte ewuketshezi. Lesi sendlalelo se-SEI sicindezela ngokwedlulele ukubola kwe-electrolyte okuqhubekayo futhi sivimbele ukuhlangana kwe-solvent, ngenkathi ivumela ukwenziwa kwe-lithium cation, ngaleyo ndlela ikhulise amandla okubuyisela emuva we-anode.

Ngenxa yalokho, Abenzi bebhethri be-EV badinga ukusebenzisa into enezimbobo kakhulu enobuqotho obanele besakhiwo ukuze banciphise ukunwetshwa kwevolumu kanye nokuqina komshini ngesikhathi sokufakwa/ukukhishwa okuphindaphindiwe kwama-ion e-lithium ngesikhathi sokugibela ibhayisikili.. Ngaphandle kwamasu amaningi okuthuthukisa ukusebenza kwe-anode nokuthuthukisa ukuminyana kwamandla kwama-LIB, umkhawulo owodwa oyisihluthulelo uhlala uwumthamo wokuqala ongenakuhlehliswa womjikelezo (Cirr) okubangelwa ukubola kwe-electrolyte enciphisayo.

Ukuze unciphise umthelela we-Cirr, abacwaningi abaningi baye bahlola ukuguqulwa kwendawo yezinhlayiya zegraphite. Lokhu kungenziwa ngezindlela ezihlukahlukene zokwelashwa ezifana nezixazululo ze-oxidative, izinto ze-ceramic noma amagesi, ngokuvamile kulandelwa ukwelashwa ukushisa.

(I-Graphite Anode ne-Cathode Materials yamabhethri e-EV)