E kamaʻilio e pili ana i nā ʻāpana koʻikoʻi o ka pūʻulu Baterya-pūnaewele (4)

ʻO nā hemahema o ka pākaukau lithium iron phosphate

Inā hiki i kahi mea ke noi a me ka hoʻomohala ʻana, i ka hoʻohui ʻana i kāna mau mea maikaʻi, ʻo ke kī inā loaʻa nā hemahema kumu.

I kēia manawa, koho nui ʻia ka lithium iron phosphate ma ke ʻano he cathode material o nā pā lithium-ion mana ma Kina.Manaʻo nā mea noiʻi mākeke mai nā aupuni, nā ʻimi noiʻi ʻepekema, nā ʻoihana a me nā ʻoihana palekana e pili ana i kēia mea a manaʻo ʻia ʻo ia ke kuhikuhi o ka hoʻomohala ʻana i nā pā lithium-ion mana.Wahi a ka nānā ʻana o nā kumu, aia ka nui o nā mea ʻelua: ʻO ka mea mua, ma muli o ka mana o ka noiʻi a me ka hoʻomohala kuhikuhi ma United States, ʻo Valence a me A123 nā hui ma United States i hoʻohana mua i ka lithium iron phosphate e like me ka cathode material. ʻo nā pākahi lithium ion.ʻO ka lua, ʻaʻole i hoʻomākaukau ʻia nā mea lithium manganate me ka paikikala kiʻekiʻe kiʻekiʻe a me ka hana mālama ʻana i hiki ke hoʻohana ʻia no ka mana lithium-ion i Kina.Eia nō naʻe, he mau hemahema koʻikoʻi ka lithium iron phosphate ʻaʻole hiki ke mālama ʻia, hiki ke hōʻuluʻulu ʻia penei:

1. Ma ke kaʻina hana sintering o ka hoʻomākaukau ʻana i ka lithium iron phosphate, hiki ke hoʻemi ʻia ka hao oxide i ka hao maʻalahi ma lalo o ke ea hoʻemi kiʻekiʻe.ʻO ka hao, ka mea kapu loa i loko o nā pila, hiki ke hoʻoulu i ka pōkiʻi liʻiliʻi o nā pila.ʻO kēia ke kumu nui i hoʻohana ʻole ai ʻo Iapana i kēia mea ma ke ʻano he cathode mea o nā ʻano mana lithium ion.

2. Loaʻa i ka Lithium iron phosphate kekahi mau hemahema hana, e like me ka haʻahaʻa haʻahaʻa haʻahaʻa a me ka compaction density, e hopena i ka haʻahaʻa haʻahaʻa haʻahaʻa o ka pā lithium ion.ʻAʻole maikaʻi ka hana haʻahaʻa haʻahaʻa, ʻoiai inā ʻaʻole hoʻonā kona nano - a me ka uhi kalapona i kēia pilikia.I ka manawa i kamaʻilio ai ʻo Dr. Don Hillebrand, ka luna o ka Energy Storage System Center o Argonne National Laboratory, e pili ana i ka haʻahaʻa haʻahaʻa haʻahaʻa o ka haʻahaʻa haʻahaʻa o ka pāhana lithium iron phosphate, ua wehewehe ʻo ia he weliweli.Ua hōʻike ʻia kā lākou hopena hoʻāʻo ma ka pā lithium iron phosphate ʻaʻole hiki ke hoʻokele i nā kaʻa uila ma lalo o 0 ℃.ʻOiai ke ʻōlelo nei kekahi mau mea hana he maikaʻi ka nui o ka paʻa ʻana o ka pākaukau lithium iron phosphate i ka haʻahaʻa haʻahaʻa, aia ma lalo o ke kūlana o ka haʻahaʻa haʻahaʻa o kēia manawa a me ka haʻahaʻa haʻahaʻa ʻoki ʻoki.I kēia hihia, ʻaʻole hiki ke hoʻomaka ʻia nā mea hana.

3. He kiʻekiʻe ke kumukūʻai hoʻomākaukau o nā mea hana a me ke kumukūʻai hana o nā pila, ʻoi aku ka liʻiliʻi o ka hua o nā pila, a ʻilihune ke kūlike.ʻOiai ua hoʻomaikaʻi ʻia nā waiwai electrochemical o nā mea e ka nanocrystallization a me ka uhi kalapona o ka lithium iron phosphate, ua lawe ʻia nā pilikia ʻē aʻe, e like me ka hoʻohaʻahaʻa ʻana o ka ikehu, ka hoʻomaikaʻi ʻana i ke kumukūʻai synthesis, maikaʻi ʻole ka hana ʻana o ka electrode a me ka paʻakikī o ke kaiapuni. koi.ʻOiai ʻo nā mea kemika Li, Fe a me P i ka lithium iron phosphate he waiwai nui a he haʻahaʻa ke kumukūʻai, ʻaʻole haʻahaʻa ke kumukūʻai o ka huahana lithium iron phosphate i hoʻomākaukau ʻia.ʻOiai ma hope o ka wehe ʻana i nā kumukūʻai noiʻi mua a me ka hoʻomohala ʻana, ʻo ke kumukūʻai kaʻina hana o kēia mea me ke kumu kūʻai kiʻekiʻe o ka hoʻomākaukau ʻana i nā pila e hoʻonui i ke kumukūʻai hope o ka mālama ʻana i ka ikehu.

4. ʻAʻohe kūlike o ka huahana.I kēia manawa, ʻaʻohe hale hana mea hao lithium iron phosphate ma Kina e hiki ke hoʻoponopono i kēia pilikia.Mai ka hiʻohiʻona o ka hoʻomākaukau ʻana i nā mea, ʻo ka hopena synthesis o ka lithium iron phosphate he hopena heterogeneous paʻakikī, me ka phosphate paʻa, iron oxide a me ka paʻakai lithium, carbon hoʻohui precursor a me ka hoʻohaʻahaʻa ʻana i ke kinoea.Ma kēia kaʻina hana paʻakikī, paʻakikī ke hōʻoia i ke kūlike o ka hopena.

5. Pilikia waiwai noonoo.I kēia manawa, nona ka patent kumu o ka lithium iron phosphate e ke Kulanui o Texas ma ʻAmelika Hui Pū ʻIa, ʻoiai ua noi ʻia ka patent carbon coated e nā Canadians.ʻAʻole hiki ke kāpae ʻia kēia mau patent kumu ʻelua.Inā hoʻokomo ʻia nā uku patent i ke kumukūʻai, e hoʻonui hou ʻia ke kumukūʻai huahana.

知识产权

Eia kekahi, mai ka ʻike o ka R&D a me ka hana ʻana o nā pā lithium-ion, ʻo Iapana ka ʻāina mua e kūʻai aku i nā pā lithium-ion, a ua noho mau i ka mākeke pākaukau lithium-ion kiʻekiʻe.ʻOiai ke alakaʻi nei ʻo ʻAmelika i kekahi mau noiʻi maʻamau, a hiki i kēia manawa ʻaʻohe mea hana pākaukau lithium ion nui.No laila, ʻoi aku ka maikaʻi o Iapana e koho i ka lithium manganate i hoʻololi ʻia e like me ka cathode material o ka mana lithium ion battery.ʻOiai ma ʻAmelika Hui Pū ʻIa, hoʻohana ka hapalua o nā mea hana i ka lithium iron phosphate a me ka lithium manganate ma ke ʻano he cathode mea o ka mana lithium ion bateria, a kākoʻo pū ke aupuni federal i ka noiʻi a me ka hoʻomohala ʻana o kēia mau ʻōnaehana ʻelua.Ma ka nānā ʻana i nā pilikia i luna, paʻakikī ka lithium iron phosphate e hoʻohana nui ʻia e like me ka cathode material o ka mana lithium-ion i nā kaʻa ikaika hou a me nā kahua ʻē aʻe.Inā hiki iā mākou ke hoʻoponopono i ka pilikia o ka pōʻino kiʻekiʻe-mehana paikikala a me ka mālama ʻana i ka hana o ka lithium manganate, e loaʻa iā ia ka mana nui i ka hoʻohana ʻana i ka mana lithium-ion me kona mau pono o ka haʻahaʻa haʻahaʻa a me ka hana kiʻekiʻe.

 


Ka manawa hoʻouna: ʻOkakopa-19-2022