INissan Motor neNissan ARC bamemezela ngoMashi 13, 2014 ukuthi sebesungule indlela yokuhlaziya engabona ngqo futhi ilinganise ukuhamba kwama-elektroni ezintweni ezinhle ze-electrode zamabhethri e-lithium-ion ngesikhathi sokushaja nokukhipha. Kusetshenziswa le ndlela, “kwenza ukuthuthukiswa kwamabhethri e-lithium-ion aphakeme kakhulu, ngaleyo ndlela kusize ukunweba ububanzi bezimoto zikagesi ezimsulwa (EV)”

Ukuthuthukisa ibhethri le-lithium-ion elinamandla amakhulu nempilo ende, kuyadingeka ukugcina i-lithium eningi ngangokunokwenzeka ezintweni ezisebenzayo ze-electrode, nezinto zokwakha ezingakhiqiza inani elikhulu lama-electron. Ngalesi sizathu, kubaluleke kakhulu ukuqonda ukuhamba kwama-electron ebhetri, futhi amasu wokuhlaziya wangaphambilini awakwazi ukubona ngqo ukuhamba kwama-electron. Ngakho-ke, akunakwenzeka ukukhomba ngobuningi ukuthi iyiphi into eku-elektroni esebenzayo (i-manganese (Mn), i-cobalt (Co), i-nickel (i-Ni), i-oxygen (i-O), njll.) Engadedela ama-electron.

Indlela yokuhlaziya esungulwe ngalesi sikhathi isixazulule inkinga ekudala ikhona-ukutholakala komsuka wamanje ngesikhathi sokushaja nokukhipha nokuyibamba ngobuningi “kwezokuqala emhlabeni” (iNissan Motor). Ngenxa yalokhu, kungenzeka ukuthi ubambe ngokunembile izinto ezenzeka ngaphakathi kwebhethri, ikakhulukazi ukuhamba kwento esebenzayo equkethwe kokuqukethwe okuhle kwe-electrode. Imiphumela kulokhu yenziwa ngokuhlanganyela yiNissan ARC, i-University of Tokyo, i-Kyoto University, ne-Osaka Prefectural University.

Ibhethri lesitoreji samandla kaTesla

Ubuye wasebenzisa i- “Earth Simulator”

Indlela yokuhlaziya esungulwe ngalesi sikhathi isebenzisa kokubili i- “X-ray absorption spectroscopy” kusetshenziswa i- “L absorption end” kanye ne- “first-principles method calculation method” kusetshenziswa i-supercomputer “Earth Simulator”. Yize abanye abantu besebenzise i-X-ray absorption spectroscopy ukwenza ukuhlaziywa kwebhethri ye-lithium-ion phambilini, ukusetshenziswa kwe- “K absorption end” yikhona okujwayelekile. Ama-electron ahlelwe kusendlalelo se-K segobolondo esiseduzane ne-nucleus aboshelwe ku-athomu, ngakho-ke ama-electron awahlanganyeli ngqo ekukhokhisweni nasekukhipheni.

Indlela yokuhlaziya ngalesi sikhathi isebenzisa i-X ukumunca i-spectroscopy isebenzisa ukuphela kwe-L ukumunca ukubona ngqo ukugeleza kwama-electron abamba iqhaza ekuphenduleni kwebhethri. Ngaphezu kwalokho, ngokuhlanganisa nendlela yokuqala yokubalwa kwezinqubomgomo zokuqala usebenzisa i-simulator yomhlaba, inani lokunyakaza kwama-electron elingabhekiswa kuphela ngaphambili latholakala ngokunemba okuphezulu.

Lobo buchwepheshe buzoba nomthelela omkhulu ezinhlotsheni zezinhlelo zokugcina amandla ebhethri

INissan ARC isebenzisa le ndlela yokuhlaziya ukuhlaziya izinto ze-lithium-excess cathode. Kutholakale ukuthi (1) esimweni esinamandla amakhulu, ama-electron omoya-mpilo alusizo ekuphenduleni kokushaja; (2) lapho kukhishwa, ama-electron akuma-manganese alusizo ekuphenduleni kokukhipha.

Idizayini yesistimu yokugcina amandla ebhetri