Manaʻo o ka Luna Hoʻoponopono: ʻO ka ʻenehana uila ka wā e hiki mai ana o ka honua ʻōmaʻomaʻo, a ʻo ka ʻenehana pila ke kumu o ka ʻenehana uila a me ke kī i ka hoʻopaʻa ʻana i ka hoʻomohala nui ʻana o ka ʻenehana uila. ʻO ka ʻenehana pila nui o kēia manawa ʻo ia nā pila lithium-ion, nona ka nui o ka ikehu a me ka pono kiʻekiʻe. Eia nō naʻe, he mea kakaikahi ka lithium me ke kumukūʻai kiʻekiʻe a me nā kumuwaiwai palena. I ka manawa like, i ka ulu ʻana o ka hoʻohana ʻana i nā kumu ikehu hou, ʻaʻole lawa ka nui o ka ikehu o nā pila lithium-ion. pehea e pane ai? Ua lawe ʻo Mayank Jain i kahi waihona o kekahi mau ʻenehana pila e hoʻohana ʻia i ka wā e hiki mai ana. Ua paʻi ʻia ka ʻatikala kumu ma ka medium me ke poʻo inoa: ʻO ka wā e hiki mai ana o ka ʻenehana pila
Ua piha ka honua i ka ikehu, a ke hana nei mākou i nā mea āpau e hiki ai iā mākou ke hopu a hoʻohana pono i kēlā ikehu. ʻOiai ua hana mākou i kahi hana ʻoi aku ka maikaʻi ma ka hoʻololi ʻana i ka ikehu hou, ʻaʻole mākou i holomua nui i ka mālama ʻana i ka ikehu.
I kēia manawa, ʻo ke kūlana kiʻekiʻe loa o ka ʻenehana pila ʻo ia nā pila lithium-ion. Me he mea lā ʻo kēia pila ka nui o ka ikehu maikaʻi loa, ka pono kiʻekiʻe (ma kahi o 99%), a me ke ola lōʻihi.
No laila he aha ka hewa? I ka hoʻomau ʻana o ka ulu ʻana o ka ikehu hou a mākou e hopu ai, ʻaʻole lawa ka nui o ka ikehu o nā pila lithium-ion.
ʻOiai hiki iā mākou ke hoʻomau i ka hana ʻana i nā pila ma nā ʻano nui, ʻaʻole like kēia me he mea nui lā, akā ʻo ka pilikia, he metala kakaikahi ka lithium, no laila ʻaʻole haʻahaʻa kona kumukūʻai. ʻOiai ke emi nei nā kumukūʻai hana pila, ke piʻi wikiwiki nei hoʻi ka pono no ka mālama ʻana i ka ikehu.
Ua hōʻea mākou i kahi kiko kahi i ka wā e hana ʻia ai ka pākahiko lithium ion, e loaʻa iā ia ka hopena nui i ka ʻoihana ikehu.
ʻO ka nui o ka ikehu o nā wahie mōʻalihaku he ʻoiaʻiʻo ia, a he mea nui kēia e hoʻopilikia ai i ka hoʻololi ʻana i ka hilinaʻi piha ʻana i ka ikehu hou. Pono mākou i nā pila e hoʻopuka i ka ikehu ma mua o ko mākou kaumaha.
Pehea e hana ai nā pila lithium-ion
Ua like ke ʻano hana o nā pila lithium me nā pila kemika AA a i ʻole AAA maʻamau. Loaʻa iā lākou nā kikowaena anode a me cathode, a me kahi electrolyte ma waena. ʻAʻole e like me nā pila maʻamau, hiki ke hoʻohuli ʻia ka hopena hoʻokuʻu ʻana i loko o kahi pila lithium-ion, no laila hiki ke hoʻouka hou ʻia ka pila.
Hana ʻia ke cathode (+ terminal) i ka lithium iron phosphate, hana ʻia ke anode (-terminal) i ka graphite, a hana ʻia ka graphite i ke kalapona. ʻO ka uila wale nō ke kahe ʻana o nā electrons. Hoʻopuka kēia mau pila i ka uila ma ka hoʻoneʻe ʻana i nā ion lithium ma waena o ka anode a me ka cathode.
Ke hoʻopiʻi ʻia, neʻe nā ion i ka anode, a i ka wā e hoʻokuʻu ʻia ai, holo nā ion i ka cathode.
ʻO kēia neʻe ʻana o nā ion ke kumu o ka neʻe ʻana o nā electrons i loko o ke kaapuni, no laila pili ka neʻe ʻana o ka ion lithium a me ka neʻe ʻana o ka electron.
Pākahi anode silikona
Ua hoʻopukapuka kālā nā ʻoihana kaʻa nui e like me BMW i ka hoʻomohala ʻana i nā pila anode silicon. E like me nā pila lithium-ion maʻamau, hoʻohana kēia mau pila i nā anode lithium, akā ma kahi o nā anode kalapona, hoʻohana lākou i ka silicon.
Ma ke ʻano he anode, ʻoi aku ka maikaʻi o ka silicon ma mua o ka graphite no ka mea pono ia i 4 mau ʻātoma kalapona e paʻa ai i ka lithium, a hiki i 1 ʻātoma silicon ke paʻa i 4 mau ion lithium. He hoʻonui nui kēia ... e hana ana i ka silicon i 3 mau manawa ikaika ma mua o ka graphite.
Eia nō naʻe, he pahi kaua ʻoi pālua ka hoʻohana ʻana i ka lithium. He pipiʻi nō kēia mea, akā ʻoi aku ka maʻalahi o ka hoʻoili ʻana i nā hale hana i nā cell silicon. Inā ʻokoʻa loa nā pila, pono e hoʻolālā hou ʻia ka hale hana, kahi e hoʻemi iki ai i ka hoihoi o ka hoʻololi ʻana.
Hana ʻia nā anode Silicon ma ka mālama ʻana i ke one e hana i ka silicon maʻemaʻe, akā ʻo ka pilikia nui e kū nei i nā mea noiʻi i kēia manawa, ʻo ia ka pehu ʻana o nā anode silicon i ka wā e hoʻohana ʻia ai. Hiki i kēia ke hoʻohaʻahaʻa koke i ka pila. He mea paʻakikī hoʻi ke hana nui i nā anode.
Pākahi Graphene
He ʻano ʻōpala kalapona ʻo Graphene e hoʻohana ana i ka mea like me ka penikala, akā he nui ka manawa e hoʻopili ai i ka graphite i nā ʻōpala. Hoʻomaikaʻi ʻia ʻo Graphene no kāna hana maikaʻi loa i nā hihia hoʻohana he nui, a ʻo nā pila kekahi o lākou.
Ke hana nei kekahi mau ʻoihana i nā pila graphene hiki ke hoʻopiha piha ʻia i loko o nā minuke a hoʻokuʻu ʻia i 33 mau manawa wikiwiki ma mua o nā pila lithium-ion. He waiwai nui kēia no nā kaʻa uila.
Pākahi huʻa
I kēia manawa, ʻelua ʻano nā pila kuʻuna. Hoʻopili ʻia lākou e like me ka pila lithium a ʻōwili ʻia paha e like me ka pila AA a i ʻole ka pila lithium-ion maʻamau.
He manaʻo hou ka pākahiko huʻa e pili ana i ka neʻe ʻana o ka uku uila ma kahi ākea 3D.
Hiki i kēia ʻano hana 3-dimensional ke hoʻolalelale i ka manawa hoʻouka a hoʻonui i ka nui o ka ikehu, he mau ʻano koʻikoʻi loa kēia o ka pila. Ke hoʻohālikelike ʻia me ka hapa nui o nā pila ʻē aʻe, ʻaʻohe electrolytes wai ʻino o nā pila huʻa.
Hoʻohana nā pila huʻa i nā electrolytes paʻa ma kahi o nā electrolytes wai. ʻAʻole wale kēia electrolyte e alakaʻi i nā ion lithium, akā hoʻokaʻawale pū i nā mea uila ʻē aʻe.
ʻO ka anode e paʻa ana i ka hoʻopiʻi maikaʻi ʻole o ka pila ua hana ʻia me ke keleawe i hoʻomoʻa ʻia a uhi ʻia me ka mea hana e pono ai.
A laila hoʻopili ʻia kahi electrolyte paʻa a puni ka anode.
ʻO ka mea hope loa, hoʻohana ʻia kahi mea i kapa ʻia ʻo "positive paste" e hoʻopiha i nā hakahaka i loko o ka pila.
Pākahi ʻOkika Alumini
ʻOi aku ka ikaika o kēia mau pila a ʻoi aku ka māmā ma mua o nā pila lithium-ion o kēia manawa. Ke ʻōlelo nei kekahi poʻe e hiki i kēia mau pila ke hāʻawi i 2,000 kilomita o nā kaʻa uila. He aha kēia manaʻo? No ka ʻike, ʻo ka mamao holo kiʻekiʻe loa o Tesla ma kahi o 600 kilomita.
ʻO ka pilikia me kēia mau pila, ʻaʻole hiki ke hoʻopiʻi ʻia. Hoʻopuka lākou i ka aluminiuma hydroxide a hoʻokuʻu i ka ikehu ma o ka hopena o ka alumini a me ka oxygen i loko o kahi electrolyte wai. Hoʻopau ka hoʻohana ʻana i nā pila i ka alumini ma ke ʻano he anode.
Pākahiko sodium
I kēia manawa, ke hana nei nā kānaka ʻepekema Kepanī i ka hana ʻana i nā pila e hoʻohana ana i ka sodium ma kahi o ka lithium.
He mea hoʻopilikia kēia, ʻoiai ʻoi aku ka maikaʻi o nā pila sodium ma mua o nā pila lithium ma ke kumumanaʻo he 7 mau manawa. ʻO kekahi pōmaikaʻi nui ʻē aʻe, ʻo ia ka sodium ke ono o nā mea waiwai loa i nā waihona o ka honua, ke hoʻohālikelike ʻia me ka lithium, he mea kakaikahi ia.
Ka manawa hoʻouna: Dec-02-2019