nūhou

ʻEtila metila kalaponaHe hui organik me ke ʻano kemika C5H8O3, i ʻike ʻia hoʻi ʻo EMC. He wai kala ʻole, moakāka, a me ka volatile me ka haʻahaʻa o ka toxicity a me ka volatility. Hoʻohana pinepine ʻia ka EMC ma ke ʻano he mea maka ma nā kahua e like me nā solvents, coatings, plastics, resins, spices, a me nā lāʻau lapaʻau. Hiki ke hoʻohana ʻia e hoʻomākaukau i nā hui organik ʻē aʻe, e like me ka polycarbonate. I ka hana ʻoihana, hoʻohana pinepine ka hana ʻana o EMC i ka hopena hoʻololi ester a i ʻole ka hopena esterification carbonation.

Inoa huahana: Ethyl methyl carbonate

CAS：623-53-0

ʻO ke ʻano molekala：C4H8O3

EINECS：433-480-9

ʻO ke kahua noi ma lalo o EMC ka electrolyte pākahiko lithium-ion, ʻo ia kekahi o nā mea nui ʻehā o nā pākahiko lithium-ion a ua kapa maopopo ʻia ʻo "koko" o nā pākahiko.

Ua māhele ʻia ʻo EMC i ʻelua mau māhele e pili ana i ka maʻemaʻe: methyl ethyl carbonate papa ʻoihana (99.9%) a me ka EMC papa pākahiko (99.99% a ʻoi aku paha). Hoʻohana nui ʻia ka EMC papa ʻoihana i ka synthesis organik ʻoihana a me nā mea hoʻoheheʻe; Pono ke kaʻina hana EMC papa pākahiko i nā koi kiʻekiʻe a hoʻohana nui ʻia ma ke ʻano he mea hoʻoheheʻe no nā electrolytes pākahiko lithium-ion. Ma muli o kona hindrance steric liʻiliʻi a me ka asymmetry i ke ʻano, hiki iā ia ke kōkua i ka hoʻonui ʻana i ka solubility o nā ion lithium, e hoʻomaikaʻi ana i ka density capacitance a me ka hoʻouka ʻana o ka pākahiko, a ua lilo ia i hoʻokahi o nā mea hoʻoheheʻe nui ʻelima no nā electrolytes pākahiko lithium-ion.

ʻO ke kahua noi ma lalo o EMC ka electrolyte pākahiko lithium-ion, ʻo ia kekahi o nā mea nui ʻehā o nā pākahiko lithium-ion a ua kapa maopopo ʻia ʻo ke "koko" o nā pākahiko. I nā makahiki i hala iho nei, me ka hoʻomohala wikiwiki ʻana o ka ʻoihana kaʻa ikehu hou, ua komo ka ʻoihana electrolyte pākahiko lithium-ion o Kina i kahi manawa o ka hoʻomohala wikiwiki. Ua piʻi nui ka helu localization o nā electrolytes, a ua hoʻokō ʻia ka hoʻololi ʻana mai ka lawe mai, e hoʻokele ana i ka ulu wikiwiki o ke koi no EMC ma ka mākeke Kina. Wahi a ka "2023-2027 China EMC Industry Market Deep Research and Development Prospects Forecast Report" i hoʻokuʻu ʻia e ka Xinsijie Industry Research Center, i ka makahiki 2021, ʻo ke koi no EMC ma Kina he 139500 tons, he piʻi makahiki-ma-makahiki o 94.7%.

ʻO ka mākeke noEMCua hōʻike i kahi ʻano ulu mau i nā makahiki i hala iho nei. ʻO ke kumu nui o kēia ma muli o ka hoʻohana nui ʻana o EMC i nā ʻano hana like ʻole, e like me nā solvents, coatings, plastics, resins, spices, a me nā lāʻau lapaʻau. Eia kekahi, me ka hoʻomohala ʻana o ka hoʻokele waiwai honua a me ka hoʻomaikaʻi ʻana i nā kūlana ola o ka poʻe, ke piʻi mālie nei ke koi no EMC.

I kēia manawa, ʻo nā wahi kūʻai nui o ka mākeke EMC e komo pū ana me ka ʻāina ʻo Asia Pacific, ʻEulopa, a me ʻAmelika ʻĀkau. ʻO ka ʻāina ʻo Asia Pacific ka ʻāina kūʻai nui o ka mākeke methyl ethyl carbonate, me Kina, Iapana, a me Kōlea Hema nā mea hana nui a me nā mea kūʻai aku o EMC. Ke ulu mālie nei hoʻi ka mākeke no EMC ma ʻEulopa a me ʻAmelika ʻĀkau, me Kelemania, United Kingdom, ʻAmelika Hui Pū ʻIa, a me Kanada nā mea kūʻai nui o EMC.

I ka wā e hiki mai ana, e hoʻopili ʻia ka ulu ʻana o ka mākeke EMC e ka hoʻomohala ʻana o ka hoʻokele waiwai a me ka ʻoihana honua. Me ka piʻi ʻana o nā mākeke e kū mai ana a me ka holomua ʻenehana mau, e hoʻomau ka ulu ʻana o ke koi no EMC ma ka mākeke. Eia kekahi, e lilo ka palekana o ke kaiapuni a me ka hoʻomohala hoʻomau i nā ʻano koʻikoʻi i ka mākeke EMC, e paipai ana i ka hana ʻana a me ka hoʻohana ʻana i ka EMC i mea e ʻoi aku ka launa pū ʻana me ke kaiapuni a me ke kūpaʻa.