ʻO wai ka pākaukau lithium titanate i ʻoi aku ka maikaʻi ma mua o ka lithium iron phosphate a me ka pākahi lithium ternary?

I kēia manawa, hoʻohana nui nā kaʻa uila hou i nā pā lithium mana me ka lithium iron phosphate a i ʻole nā ​​​​mea ternary e like me nā huahana cathode, ʻo ia mau mea ʻelua i kā lākou pono ponoʻī i nā pā o nā kaʻa kaʻa kaʻa hou a me nā kaʻa mana hou. No laila, ʻoi aku ka maikaʻi no ka pā lithium titanate, lithium iron phosphate a me ka pākaukau ternary?

Hoʻomaka hoʻi kēia me ka hana ʻana o nā pā 3. E like me kā mākou e ʻike ai, ua hoʻokumu mua ʻia ka hana o nā pā lithium-ion e ka electrode maikaʻi, electrode maikaʻi ʻole, electrolyte a me ka mea hoʻokaʻawale. ʻO nā mea electrode maikaʻi a maikaʻi hoʻi he hopena koʻikoʻi i nā hōʻailona koʻikoʻi o ka pākaukau, e like me ka hiki, ka mānoanoa o ka ikehu, ke ola pōʻai, ka palekana a me ka palekana, ka maikaʻi o ke kumukūʻai, a me ka uku.

ʻOiai ua hoʻohana ʻia ka ternary e like me ka mea electrode maikaʻi, ua haki ka pā lithium titanate i ke ala ʻenehana kahiko o ka hoʻohana ʻana i ka graphene e like me ka electrode adverse, a hoʻohana i ka lithium titanate e like me ka huahana electrode adverse, e lilo ia i mea ʻoi aku ka maikaʻi i nā maka o kona mau hoa. Akā ʻo nā hiʻohiʻona o ka lithium titanate ponoʻī e hoʻolilo i ka pākaukau o kēia mea i nā hiʻohiʻona kupaianaha.

ʻO ka lawe ʻana i ka lithium iron phosphate-graphene, ternary-graphene, a me ka ternary-lithium titanate lithium-ion batteries e like me nā hiʻohiʻona, ma ke ʻano o ka mānoanoa o ka ikehu wale nō, aia nā ʻāpana lithium titanate i lalo. Ua wehewehe ka Northeast Securities Study Report ʻo ka ikehu maoli o ka pā hao lithium iron phosphate he 100-120Wh/kg, a ʻo ka pākaukau ternary he 150-200Wh/kg. Ma waena o lākou, hiki i ka nickel-cobalt-aluminum ternary battery i hoʻohana ʻia e TSLA a hiki i 252Wh/kg. ʻO ka Yinlong lithium-ion titanate pākaukau he 90Wh/kg wale nō, ʻo ia wale nō he kanalima pakeneka o ka pā o kekahi mau huahana anode graphite.

Ma ke ʻano o ke kumukūʻai, ʻaʻohe pono o nā pākahi lithium titanate. I kēia manawa, ʻo nā huahana maka o Yinlong lithium titanate pākahiko he titanium hydroxide a me ka lithium hydroxide, ʻoi aku ke kumukūʻai ma mua o nā mea anode graphite. Wahi a nā hualoaʻa noiʻi o koʻu ʻāina ʻoihana pūnaewele, ʻo ke kumukūʻai o kēia manawa o ka lithium iron phosphate a me ka pākaukau ternary he 1100 yuan/kwh -1200 yuan/kwh, ʻoiai ʻo ka lilo o ka pā lithium titanate e pili ana me 2-3 mau manawa o ka pila ternary. Pehea ka pau ʻana o nā ʻeke lithium titanate ma ka mākeke? Me ka kānalua ʻole, ʻo kāna pono ponoʻī o ke ʻano i hoʻoneʻe i kekahi poʻe i ka ʻāpana.

ʻO ka mea mua, me ka noʻonoʻo ʻana i nā hōʻailona palekana koʻikoʻi o nā pila, ʻo ka lithium titanate e kū i waho.

Ke hoʻohana ʻia ka lithium titanate e like me ka huahana electrode maikaʻi ʻole, hiki i ka ʻōnaehana hiki ke kiʻekiʻe e like me 1.55 V, ʻoi aku ia ma mua o ka 1V kiʻekiʻe ma mua o ka graphite negative electrode material. ʻOiai ua nalowale kekahi mau mana, hōʻike pū ʻia ʻoi aku ka palekana o ka pākaukau. ʻO ka loea loea ʻo Lu Blu-ray i ka wā i haʻi ʻia e hoʻemi ʻia ka pono o ka puʻuwai electrode maikaʻi ʻole i ka wā e hoʻopiʻi wikiwiki ʻia ai ka pākaukau, akā inā haʻahaʻa, hiki i ka pā lithium-ion ke hiki i ka ua o ka lithium metala ikaika loa. ʻAʻole conductive wale kēia ion lithium, akā hoʻopili pū me ka electrolyte. Hoʻokuʻu ʻia ka mahana a me nā kinoea puhi ahi e hana ana i ke ahi. ʻO ka lithium titanate ka mea e pale aku ai i ka volta electrode maikaʻi ʻole mai ka 0 ma muli o ke kiʻekiʻe o ka volta o 1V, e pale pono ʻole i ka ua o nā ion lithium, no laila e hōʻoiaʻiʻo ana i ka palekana a me ka palekana o ka pā.

No ka mea hiki ke hoʻohana paʻa ʻia ka pākaukau lithium titanate i ka wela a me ka haʻahaʻa haʻahaʻa o ka pae wela, e hōʻike pū ana ʻo ia i kāna mau pono pono o ke kūpaʻa ākea ākea (ʻoi aku ka hoʻemi ʻana o ka pae wela). I kēia manawa, ʻo ke ʻano palekana hana palekana o ka Yinlong lithium titanate pākaukau ma waena o -50 degere a me 65 pae, ʻoiai ke hoʻomaka nei ka ikehu o nā pākahi anode graphite maʻamau i ka emi ʻana o ka pae wela ma lalo o -20 pae, a ʻo ka hiki ke hoʻopiʻi ma -30 degere he 14% wale nō o ka hiki ke hoʻolimalima kālā, ʻaʻole hiki ke hana pololei i ka hoʻoilo koʻikoʻi.

Eia kekahi, ma muli o ka loaʻa ʻana o ka pākaukau lithium titanate he 1% ka nui o ka hoʻoponopono ʻana inā ʻoi aku ka nui o ka hoʻolimalima ʻana, ua kapa ʻia ʻo ia he huahana zero-strain, kahi e loaʻa ai ke ola lōʻihi loa. ʻO Wei Yincang, ka luna o Yinlong, i ka wā i ʻōlelo ai ʻo ka lōʻihi o ke ola o Yinlong lithium titanate pākahi hiki ke hiki i ʻekolu mau makahiki, ʻo ia ka nui o ke ola lawelawe o ke kaʻa a me ke kaʻa, ʻoiai ke ola maʻamau o ka awelika graphite anode material pākaukau he 3-4 mau makahiki wale nō. Mai ka ʻike o ke kaʻina hana holoʻokoʻa, ʻoi aku ka haʻahaʻa o ka uku o ka pā lithium titanate.

ʻO ka pōmaikaʻi hope loa o ka lithium titanate ʻo ia ka uku wikiwiki ikaika a me ka hiki ke hoʻokuʻu a me ke kumukūʻai kiʻekiʻe. I kēia manawa, ʻo 10C a i ʻole 20C paha ka uku pila o Yinlong lithium titanate, ʻoiai ʻo 2C-4C wale nō ke kumu kūʻai o ka huahana graphite anode maʻamau.

Ma muli o kēia mau hiʻohiʻona ʻenehana o nā pākahi lithium titanate, manaʻo ka poʻe i loko o ka ʻoihana e hoʻokō lākou i nā koi o nā kaʻa kaʻa hou a me nā mea hoʻopaʻa i ka ikehu nui. E lawe i ke kaʻa ma ke ʻano he laʻana, ʻaʻole ʻoi aku ka nui o ka mile o kahi huakaʻi kaʻawale ma mua o 40 mau kilomita, a me ka manawa manawa ma waena o kēlā me kēia kikowaena kikowaena a ke kali nei hoʻi a hiki i ka hoʻokaʻawale ʻana i ka liʻiliʻi loa i ʻelua mau minuke. I kēia manawa, ʻaʻole e hoʻololi ka ʻaoʻao maikaʻi ʻole o ka hoʻohaʻahaʻa ʻana i ka mana o ka pā lithium titanate i ka hoʻohana ʻana i ka kaʻa, akā e hōʻike ana ia i nā pono o ka hoʻopiʻi pākaukau wikiwiki. Ma ke ʻano he kaʻa lehulehu, ua hoʻonui maoli nā kaʻa i nā koi kiʻekiʻe e pili ana i ka palekana a me ka palekana a me ka lōʻihi o nā pā.