Nā te tere o te whanaketanga o ngā waka hiko me ngā taputapu hiko kaha-teitei kua piki ake te hiahia mō ngā pākahiko lithium-ion tino tere te utu. Heoi anō, ka pāngia ngā pākahiko lithium-ion e te pirau hiko nui i te wā e utu tere ana, ā, ka arahi pea ki ngā pakaru kino, ka whakapiki ake i ngā mōrearea haumaru. Ko te nuinga o tēnei ka ahu mai i te kore pumau o te hiko i te atanga anode-electrolyte, ka puta ai te whakatakotoranga kino o te konukura-lithium ki te mata o te pākahiko me te kore pumau o te wera.
I ngā tau tata nei, kua noho ko ngā rauemi anode ngaohiko teitei hei huarahi tino whai hua hei aukati i te nui o te whakatakotoranga lithium me te hanganga o ngā paparanga SEI (totoka-irahiko totoka) kāore i te pumau. Ahakoa ēnei kaha, kei te whakawhāitihia tonutia ngā rauemi hou e te koretake o te kawe ionic me te pumau wera, e whakaiti ana i te putanga mana me te pono mō te wā roa.
E ai ki ngā pūrongo pāpāho o tāwāhi, hei whakatau i ēnei raruraru, kua whakawhanakehia e tētahi rōpū rangahau i arahina e te Ahorangi Tuarua a Dongwook Han i te Whare Wānanga Pūtaiao me te Hangarau o Seoul tētahi rauemi anode lithium titanium phosphate kore-stoichiometric (OS) me te hanganga momo NASICON. E mōhiotia whānuitia ana tēnei rauemi mō tōna pumau hanganga me te pāmahana tino pai. Ka taea e te hoahoa te whakaoho i te huringa āhua ohorere i raro i te mata o ngā matūriki rauemi hohe hei pakaru i ngā here nekeneke me te whakatutuki i te mahi utu tere pumau.
Kua whakaputaina ngā kitenga rangahau e tika ana i roto i te puka Advanced Functional Materials.
Te Whakarerekētanga Mata mō te Kawenga Ā-Iona Tere
Kei te lithium titanium phosphate (LTP) he hanganga momo konutai-super-ionic-conductor (NASICON), e whakamanamana ana i te pumau hanganga me te pāmahana tino pai me ngā hongere horapa lithium-ion tere. Hei whakamahi i tōna pūmanawa tauine katoa, i whakamahia e ngā kairangahau he rautaki hoahoa kore-stoichiometric, ā, i whakanuia te ōwehenga o te phosphorus (P) ki te titanium (Ti). Ka puta i tēnei hanganga kore-tītāniuma ngā rohe titanium phosphate (TPO) e tata ana ki te mata o ngā matūriki LTP.
Ka mahi ēnei rohe whai rawa i te TPO hei hongere nekeneke tino whai hua, ka whakaiti i te arai pūngao mō te kawe i te lithium-ion puta noa i te atanga anode-electrolyte me te hanga i ngā ara whakawhiti ira tere tata ki ngā mata matūriki. Haunga tēnā, ko ngā here P‑O‑P tino ngāwari i roto i te anga TPO ka whakarato i te ngāwari hanganga hei urutau ki te rerekētanga rōrahi i roto i ngā huringa utu tere me te tiaki i te hanganga momo NASICON mai i ngā kino kore e taea te whakakore.
Mahi Pakari i raro i ngā Āhuatanga Utu Tere
Nō reira, i roto i ngā whakamātautau tere-kaha, te tohu nui e aromatawai ana i te kaha utu tere, i pupuri te anode hiato OS-LTP-waro (OS-LTP/C) i te 86% o tōna kaha tuatahi i raro i te tere utu 10C, i te mea i tino heke te kaha o te anode hiato LTP/C taketake.
He tino pai hoki te pumau o te huringa i muri i te neke atu i te 250 huringa. He rite tonu te tere o te mahi a ngā whirihoranga pūtau-katoa me te hototahi whānui ki ngā katote ngaohiko-tiketike.
He Ara Whānui ake ki ngā Pūhiko Haumaru Ake
"Ka hangaia e tā mātou tikanga he tauira hou mō te hoahoa pākahiko tere-utu, ā, ka taea te whakamahi whānui ki ngā pūnaha rokiroki hiko maha o te heke mai tae atu ki ngā pākahiko totoka-katoa," te kī a Han. "Ka taea e tēnei rautaki hoahoa te whakapai ake i ngā waka hiko mā te whakapoto i te wā utu, te whakapai ake i te haumaru me te tautoko i ngā whatunga hiko pūngao-whakahou."
Hei whakamutunga, ka aro atu tēnei rautaki hoahoa kore-taumata ki tētahi o ngā arai matua e pā ana ki ngā pākahiko ka taea te whakahou, ā, ka tukuna he huarahi whai hua mō te hangarau rokiroki pūngao utu tere rawa atu kua rite mō te arumoni.
Wā tuku: Akuhata-07-2026