He aha nā ala e hiki ai iaʻu ke hoʻomaikaʻi i ka palekana o ka pākaukau?

著者：Iflowpower – Fornitur Portable Power Station

1. E hoʻohana i kahi electrolyte pākaukau lithium paʻa i kēia manawa e hoʻohana ana i ka carbonate ma ke ʻano he mea hoʻoheheʻe, kahi e hiki ai i ka linear carbonate ke hoʻomaikaʻi i ka hoʻopiʻi a me ka hoʻokuʻu ʻana o ka pākaukau, akā haʻahaʻa ko lākou wahi uila, ma kahi haʻahaʻa haʻahaʻa E uila ia, a ʻo ka fluoro solvent maʻamau he kiʻekiʻe kiʻekiʻe a ʻaʻohe uila, no laila ua hoʻohana ʻia ka fluoro solvent e kāohi i ka puhi ʻana o ka electrolyte. ʻO nā mea hoʻoheheʻe fluoride i aʻo ʻia i kēia manawa he fluoroate a me ka fluoroethyl ether.

ʻO ka electrolyte hoʻopaʻa ahi he electrolyte hana i loaʻa maʻamau ka hana pale ahi o ia mau electrolytes ma o ka hoʻohui ʻana i kahi mea hoʻohui ahi i loko o kahi electrolyte maʻamau. Ke hoʻoholo nei ka electrolyte flame-retardant i kēia manawa i nā hana ʻoi aku ka maikaʻi a maikaʻi hoʻi no ka palekana pākaukau lithium, ʻoi aku ka pili o ka ʻoihana. Ke hoʻohana nei i nā electrolytes paʻa, ma kahi o nā electrolytes wai kūlohelohe, hoʻomaikaʻi maikaʻi i ka palekana o nā pā lithium.

Loaʻa nā electrolytes paʻa i nā electrolytes solid polymer a me nā electrolytes paʻa ʻole. ʻO ka polymer electrolyte, ʻoi aku ka gel-type polymer electrolyte, ua hana nui ʻia i loko o ka pā uila lithium pāʻoihana, akā ʻo ka gel-type polymer electrolyte he mea maloʻo polymer electrolyte a me ka wai electrolyte compromise. ʻO ka hopena, ua palena loa ia i ka hoʻomaikaʻi ʻana i ka palekana o ka pākaukau.

Ma muli o ka electrolyte o ka polymerization maloʻo maloʻo, no ka mea ʻaʻole ia e like me ka gel-type polymer electrolyte, ʻoi aku ka maikaʻi o ka palekana ma ke ʻano o ka leakage, ke kaomi mahu a me ka puhi ʻana. I kēia manawa, ʻaʻole i hoʻokō ka electrolyte aggregate i kēia manawa i nā koi noi o ka pākaukau lithium polymer, a manaʻo ʻia e hoʻohana nui ʻia ka noiʻi ʻana i nā pākaukau polymer lithium storage. ʻOi aku ka palekana o ka polymer electrolyte pili i ka Phase, inorganic solid electrolyte, ʻaʻohe volatilization, ʻaʻohe kuni, ʻoi aku ka pilikia leakage.

Eia kekahi, ʻoi aku ka kiʻekiʻe o ka ikaika mechanical o ka electrolyte solid inorganic, ʻoi aku ka kiʻekiʻe o ka mahana wela ma mua o ka wai electrolyte a me ka polymer organik, hoʻonui i ka pae wela hana o ka pā; ua hana ʻia ka mea inorganic i kiʻiʻoniʻoni, ʻoi aku ka maikaʻi o ka hoʻokō ʻana i ka miniaturization pākaukau lithium, a ʻo kēia ʻano pākaukau he Ultra-long storage ola hiki ke hoʻonui nui i ke kahua noi o nā pā lithium i loaʻa. 2. Hoʻomaikaʻi i ka pilikia palekana o ka thermostability o ka mea electrode i hoʻokumu pololei ʻia e ka electrolyte palekana, akā mai ke kumu kumu, no ka mea ʻaʻole kiʻekiʻe ka pākaukau ponoʻī, ʻo ka hiki ʻana o ka thermal out of control.

Ma kahi o ka thermal stability o ka electrolyte, ʻo ka thermal stability o ka electrolyte kekahi o nā kumu koʻikoʻi, no laila ʻo ke kūpaʻa wela o ka mea electrode he mea nui nō hoʻi i ka hoʻomaikaʻi ʻana i ka palekana o ka pākaukau, akā ʻo ka electrode i haʻi ʻia ma aneʻi ʻO ke kūpaʻa wela o nā mea ʻaʻole wale i kona kūpaʻa wela ponoʻī, akā pū kekahi me ka paʻa wela o ka mea electrolyte. ʻO ka maʻamau, hoʻoholo ʻia ke kūpaʻa wela o ka mea electrode maikaʻi ʻole e ka hana o ka hoʻolālā waiwai a me ka hoʻouka ʻana i ka electrode ʻino. E pili ana i kalapona mea, spherical kalapona mea, e like me intermediate kalapona microspheres (MCMB), me ka haʻahaʻa lākiō, he kiʻekiʻe ka uku a me ka hoʻokuʻu anuu, no laila, o kona moku&39;āina hoʻoili, ua liʻiliʻi, a me ka thermal paʻa ua pili.

Maikaʻi, palekana kiʻekiʻe. ʻOi aku ka maikaʻi o ka Li4Ti5O12 o ka spinel ma mua o ka paʻa o ka graphite laminated, a ʻoi aku ka kiʻekiʻe o ka uku a me ka hoʻokuʻu ʻana, no laila ʻoi aku ka maikaʻi o ka thermal stability a ʻoi aku ka kiʻekiʻe o ka palekana. No laila, hoʻohana pinepine ʻia ʻo MCMB a i ʻole Li4Ti5o12 i ka mana lithium-ion o nā pono palekana e hoʻololi i ka graphite maʻamau ma ke ʻano he electrode maikaʻi ʻole.

Ma waho aʻe o ka waiwai ponoʻī, ʻoi aku ka hopohopo o ka thermal stability o ka mea electrode maikaʻi ʻole e pili ana i ka paʻa wela o ka membrane electrolyte solid (SEI) o ka interface electrolyte maikaʻi ʻole o ka interface electrolyte, i hoʻohana pinepine ʻia e ka mea like, i ka graphite. E noʻonoʻo ʻo ia ka hana mua i ka loaʻa ʻana o ka wela. ʻElua mau ala koʻikoʻi e hoʻomaikaʻi ai i ka paʻa wela o ke kiʻi SEI: ʻo ka uhi ʻana o ka ʻili o ka mea electrode maikaʻi ʻole, e like me ka uhi ʻana i ka lanahu amorphous a i ʻole ka ʻili metala ma ka ʻili o ka graphite; ʻO ka mea ʻē aʻe e hoʻohui i nā mea hoʻohui kiʻiʻoniʻoni i loko o ka electrolyte, i loko o ka pākaukau I ka wā o ke kaʻina hana, hana lākou i kahi kiʻiʻoniʻoni SEI me kahi paʻa o ka mea electrode, ʻoi aku ka maikaʻi no ka loaʻa ʻana o ka paʻa wela maikaʻi.