ʻEkolu mau ʻano nui onā pila lithium-ion(li-ion): nā pūnaewele cylindrical, nā pūnaewele prismatic, a me nā pūnaewele ʻeke. I loko o ka ʻoihana EV, ʻo nā hoʻomohala hoʻohiki nui loa e pili ana i nā pūnaewele cylindrical a me prismatic. ʻOiai ʻo ke ʻano o ka pākahiko cylindrical ka mea kaulana loa i nā makahiki i hala iho nei, ua hōʻike kekahi mau mea e hiki i nā pūnaewele prismatic ke lawe i ke kuleana.

He aha nā meaNā Kelepona Prismatic

Akeena prismatiche keena nona ka kemika i hoʻopuni ʻia i loko o kahi pahu paʻa. ʻO kona ʻano huinahā e ʻae ai i ka hoʻopili pono ʻana i nā ʻāpana he nui i loko o kahi modula pila. ʻElua ʻano o nā keena prismatic: ʻo nā pepa electrode i loko o ka pahu (anode, separator, cathode) ua hoʻopili ʻia a ʻōwili ʻia a palahalaha ʻia.

No ka nui like, hiki i nā pūnaewele prismatic i hoʻopaʻa ʻia ke hoʻokuʻu i ka ikehu hou aʻe i ka manawa hoʻokahi, e hāʻawi ana i ka hana maikaʻi aʻe, ʻoiai ʻo nā pūnaewele prismatic i hoʻopalahalaha ʻia he nui ka ikehu, e hāʻawi ana i ka lōʻihi.

Hoʻohana nui ʻia nā cell prismatic i nā ʻōnaehana mālama ikehu a me nā kaʻa uila. ʻO ko lākou nui nui e lilo ai lākou i mau moho maikaʻi ʻole no nā mea liʻiliʻi e like me nā e-bikes a me nā kelepona paʻalima. No laila, ʻoi aku ka maikaʻi o lākou no nā noi e hoʻohana nui ana i ka ikehu.

He aha nā pūnaewele Cylindrical

Akeena poepoehe keena i hoʻopuni ʻia i loko o kahi kini cylindrical paʻa. He liʻiliʻi a poepoe nā keena cylindrical, e hiki ai ke hoʻopili iā lākou i nā mea hana o nā nui āpau. ʻAʻole e like me nā ʻano pākahiko ʻē aʻe, pale ko lākou ʻano i ka pehu ʻana, kahi hanana i makemake ʻole ʻia i loko o nā pākahiko kahi e hōʻiliʻili ai nā kinoea i loko o ka pahu.

Ua hoʻohana mua ʻia nā pūnaewele cylindrical i loko o nā kamepiula lawe lima, nona nā pūnaewele ma waena o ʻekolu a me ʻeiwa. A laila ua kaulana lākou i ka wā i hoʻohana ai ʻo Tesla iā lākou i kāna mau kaʻa uila mua (ʻo Roadster a me Model S), nona nā pūnaewele ma waena o 6,000 a me 9,000.

Hoʻohana ʻia nā pūnaewele cylindrical i nā e-bikes, nā mea lapaʻau, a me nā satelite. He mea nui nō hoʻi lākou i ka ʻimi ʻana i ka lewa ma muli o ko lākou ʻano; e hoʻololi ʻia nā ʻano pūnaewele ʻē aʻe e ke kaomi lewa. ʻO ka Rover hope loa i hoʻouna ʻia ma Mars, no ka laʻana, hana me ka hoʻohana ʻana i nā pūnaewele cylindrical. Hoʻohana nā kaʻa heihei uila hana kiʻekiʻe Formula E i nā pūnaewele like me ka rover i loko o kā lākou pila.

Nā ʻokoʻa nui ma waena o nā cell Prismatic a me Cylindrical

ʻAʻole ke ʻano wale nō ka mea e hoʻokaʻawale ai i nā cell prismatic a me cylindrical. ʻO nā ʻokoʻa koʻikoʻi ʻē aʻe e pili ana i ko lākou nui, ka helu o nā pilina uila, a me kā lākou mana i hoʻopuka ʻia.

Ka nui

ʻOi aku ka nui o nā pūnaewele prismatic ma mua o nā pūnaewele cylindrical a no laila he nui ka ikehu i kēlā me kēia pūnaewele. No ka hāʻawi ʻana i kahi manaʻo maʻalahi o ka ʻokoʻa, hiki i kahi pūnaewele prismatic hoʻokahi ke loaʻa ka nui o ka ikehu e like me 20 a 100 mau pūnaewele cylindrical. ʻO ka liʻiliʻi o ka nui o nā pūnaewele cylindrical ʻo ia hoʻi hiki ke hoʻohana ʻia no nā noi e pono ai ka mana liʻiliʻi. ʻO ka hopena, hoʻohana ʻia lākou no kahi ākea ākea o nā noi.

Nā Hoʻohui

No ka mea, ʻoi aku ka nui o nā cell prismatic ma mua o nā cell cylindrical, ʻoi aku ka liʻiliʻi o nā cell e pono ai e hoʻokō i ka nui like o ka ikehu. ʻO ke ʻano kēia no ka nui like, ʻoi aku ka liʻiliʻi o nā pilina uila o nā pila e hoʻohana ana i nā cell prismatic e pono ai ke hoʻopaʻa ʻia. He pōmaikaʻi nui kēia no nā cell prismatic no ka mea, ʻoi aku ka liʻiliʻi o nā manawa kūpono no nā hemahema hana.

Mana

Hiki i nā pūnaewele cylindrical ke mālama i ka ikehu liʻiliʻi ma mua o nā pūnaewele prismatic, akā ʻoi aku ka nui o ko lākou mana. ʻO ke ʻano kēia, hiki i nā pūnaewele cylindrical ke hoʻokuʻu i ko lākou ikehu me ka wikiwiki ma mua o nā pūnaewele prismatic. ʻO ke kumu, ʻoi aku ka nui o kā lākou pilina i kēlā me kēia amp-hola (Ah). ʻO ka hopena, kūpono nā pūnaewele cylindrical no nā noi hana kiʻekiʻe ʻoiai kūpono nā pūnaewele prismatic no ka hoʻomaikaʻi ʻana i ka pono o ka ikehu.

ʻO kahi laʻana o nā noi pila hana kiʻekiʻe e komo pū me nā kaʻa heihei Formula E a me ka helikopter Ingenuity ma Mars. Pono nā mea ʻelua i nā hana koʻikoʻi ma nā wahi koʻikoʻi.

No ke aha e lawe ai nā pūnaewele Prismatic

Ke loli koke nei ka ʻoihana EV, a ʻaʻole maopopo inā e lanakila nā cell prismatic a i ʻole nā ​​cell cylindrical. I kēia manawa, ʻoi aku ka laha o nā cell cylindrical i ka ʻoihana EV, akā aia nā kumu e manaʻo ai e kaulana nā cell prismatic.

ʻO ka mea mua, hāʻawi nā cell prismatic i kahi manawa kūpono e hoʻohaʻahaʻa i nā kumukūʻai ma ka hoʻemi ʻana i ka helu o nā ʻanuʻu hana. ʻO kā lākou ʻano e hiki ai ke hana i nā cell nui aʻe, kahi e hoʻemi ai i ka helu o nā pilina uila e pono ai ke hoʻomaʻemaʻe ʻia a hoʻopaʻa ʻia.

ʻO nā pila Prismatic kekahi ʻano kūpono no ka kemika lithium-iron phosphate (LFP), kahi hui o nā mea i ʻoi aku ka makepono a me ka maʻalahi o ka loaʻa ʻana. ʻAʻole e like me nā kemika ʻē aʻe, hoʻohana nā pila LFP i nā kumuwaiwai ma nā wahi āpau o ka honua. ʻAʻole lākou e koi i nā mea kakaikahi a pipiʻi e like me ka nickel a me ka cobalt e hoʻonui ai i ke kumukūʻai o nā ʻano cell ʻē aʻe.

Aia nā hōʻailona ikaika e hōʻike ana e puka mai ana nā pūnaewele prismatic LFP. Ma ʻĀsia, hoʻohana mua nā mea hana EV i nā pila LiFePO4, kahi ʻano pila LFP ma ke ʻano prismatic. Ua ʻōlelo pū ʻo Tesla ua hoʻomaka ia e hoʻohana i nā pila prismatic i hana ʻia ma Kina no nā mana maʻamau o kāna mau kaʻa.

Eia nō naʻe, he mau hemahema koʻikoʻi ko ka kemika LFP. ʻO ka mea mua, ʻoi aku ka liʻiliʻi o ka ikehu ma mua o nā kemika ʻē aʻe e hoʻohana ʻia nei, a no laila, ʻaʻole hiki ke hoʻohana ʻia no nā kaʻa hana kiʻekiʻe e like me nā kaʻa uila Formula 1. Eia kekahi, he paʻakikī i nā ʻōnaehana hoʻokele pila (BMS) ke wānana i ka pae hoʻopiha o ka pila.

Hiki iā ʻoe ke nānā i kēia wikiō e aʻo hou aʻe e pili ana i kaLFPkemika a me ke kumu e piʻi nei kona kaulana.