Hoʻāʻo ʻo LG Chem i nā pūnaewele Lithium Sulfur (Li-S). "Ka hana Serial ma hope o 2025"
Hoʻopili nui mākou iā LG Chem me nā kelepona lithium-ion maʻamau i hoʻohana nui ʻia i nā kaʻa uila. Eia nō naʻe, ke hoʻāʻo nei ka hui me nā hopena ʻē aʻe e like me nā cell sulfur lithium. Manaʻo nā hopena, hiki ke hana nui i ka hapa lua o nā makahiki he ʻumi.
ʻO ke kaʻa lewa ʻole me ka pākaukau Li-S e uhaʻi i ka moʻolelo lele ma ka stratosphere
Ua hana ka South Korean Institute for Airspace Research i ka EAV-3 unmanned aerial kaʻa. Hoʻohana ia i nā pūnaewele Li-S hou i hoʻomohala ʻia e LG Chem. I loko o kahi hoʻokolohua he 13 mau hola i hoʻohana ʻia e nā pihi EAV-3, ua lele ʻo ia no 7 mau hola i ka stratosphere ma kahi kiʻekiʻe o 12 a 22 mau kilomita. No laila, ua uhaʻi ʻo ia i ka moʻolelo no ke kiʻekiʻe o ka lele ʻana o kahi kaʻa lewa ʻole (kumu).
Loaʻa i nā kelepona lithium-ion maʻamau ka graphite a i ʻole graphite anodes doped me ke silika. Hoʻokumu ʻia nā pūnaewele Li-S e LG Chem i nā anodes sulfur carbon. Ua aʻo wale mākou e pili ana i nā cathodes e hoʻohana ana i ka lithium, no laila hiki ke lilo i cathodes NCM. ʻAʻole i hōʻike ka mea hana i nā ʻāpana ʻenehana hou aʻe no nā cell, akā ua ʻōlelo ʻo ia e mahalo i ka hoʻohana ʻana i ka sulfur (gravimetric), ʻoi aku ka nui o ka ikehu o nā cell "ʻoi aku ma mua o 1,5 mau manawa kiʻekiʻe" ma mua o nā cell lithium-ion.
ʻO kēia ka liʻiliʻi o 0,38 kWh / kg.
Ua hoʻolaha ʻo LG Chem e hana ia i nā prototypes cell hou e hiki ke hoʻoikaika i kahi mokulele no kekahi mau lā. No laila, maʻalahi ka manaʻo ʻaʻole i hoʻoponopono ka mea hana i ka pilikia o ka sulfur dissolution i ka electrolyte a me ka hoʻohaʻahaʻa wikiwiki ʻana o ka pā Li-S - aia nā photocells ma nā ʻēheu, no laila ʻaʻohe hemahema o ka ikehu.
ʻOiai kēia Manaʻo ka ʻoihana e hoʻomaka i ka hana nui o ka lithium sulfur cell ma hope o 2025.... E loaʻa iā lākou ka ikaika o ka ikehu ʻelua ma mua o nā cell lithium-ion.
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