Momwe mungakonzekerere mabatire a lithiamu ion otsika kwambiri omwe amatha kugwira ntchito mosachepera 60 ° C?

Posachedwapa, Ding Jianning wa ku yunivesite ya Jiangsu ndi ena agwiritsa ntchito lifiyamu chitsulo mankwala TACHIMATA mesoporous mpweya monga zabwino elekitirodi chuma ndi zinthu zolimba mpweya wolemera mu mesoporous dongosolo anakonza ndi luso electrospinning monga zakuthupi zoipa elekitirodi. Lithium bistrifluoromethanesulfonimide LiTFSi mchere ndi electrolyte wa DIOX (1,3-dioxane) + EC (ethylene carbonate) + VC (vinylidene carbonate) zosungunulira zimasonkhanitsidwa mu batri ya lithiamu-ion. Zinthu za batri za batri zomwe zidapangidwazo zimakhala ndi mawonekedwe abwino kwambiri otumizira ma ion komanso kuwononga mwachangu kwa ayoni a lithiamu, komanso ma electrolyte otsika kwambiri omwe amasunga magwiridwe antchito pa kutentha kochepa, kuwonetsetsa kuti batire ikhoza kugwirabe ntchito nthawi zonse paminus 60 °. C.

Monga teknoloji yomwe ikupita patsogolo kwambiri mumakampani a batri, anthu ambiri amalandila mabatire a lithiamu-ion chifukwa cha voteji yawo yogwira ntchito kwambiri, kachulukidwe kamphamvu kamphamvu, moyo wautali wozungulira, kutsika kocheperako, osakumbukira, komanso kuteteza chilengedwe "chobiriwira". Makampaniwa adayikanso kafukufuku wambiri. Pali kafukufuku wochulukirachulukira pa ma ion a lithiamu omwe amatha kuzolowera kutentha kwambiri. Komabe, pansi pa malo otsika kutentha, kukhuthala kwa electrolyte kudzawonjezeka kwambiri, ndipo kudzatalikitsa kuyenda kwa mabatire a lithiamu-ion pakati pa zipangizo za electrode. Komanso, electrolyte adzakhala zabwino pa kutentha otsika. Wosanjikiza wa SEI wopangidwa mu electrode yoyipa adzasintha gawo ndikukhala wosakhazikika. Choncho, zabwino ndi zoipa elekitirodi zipangizo mu luso panopa kupereka khola SEI mapangidwe chilengedwe, lalifupi kufala mtunda, ndi electrolyte ndi mamasukidwe akayendedwe m'munsi pa kutentha otsika, kuzindikira batire lifiyamu kuti akhoza kugwirabe ntchito pa kopitilira muyeso-otsika kutentha. kutsika kwa 60°C. . The luso vuto kuthetsedwa ndi kupangidwa ndi kugonjetsa malire a ntchito lifiyamu batire zipangizo m'madera otsika kutentha ndi vuto la kukhuthala kwakukulu kwa electrolytes ochiritsira ochiritsira kutentha otsika ndi otsika ion kuyenda, ndi kupereka mkulu-mulingo adzapereke. ndi kutulutsa kutentha kwambiri-otsika Batire ya lithiamu-ion ndi njira yokonzekera imagwiritsa ntchito batire ya lithiamu-ion kuti ikwaniritse bwino kwambiri komanso kutulutsa magwiridwe antchito pamatenthedwe otsika.

Chithunzi 1 Kuyerekeza kwa electrochemical performance ya otsika kutentha mabatire a lithiamu-ion pa kutentha ndi kutentha kochepa.

Phindu lachidziwitsochi ndikuti pamene zinthu zovulaza za electrode zimagwiritsidwa ntchito ngati pepala la electrode, palibe binder yomwe ikufunika. Sichidzachepetsa ma conductivity, ndipo chidzakulitsa kuchuluka kwa ntchito.

Chophatikizira: chidziwitso cha patent

Dzina la Patent: Kukonzekera njira ya batire yotsika kwambiri ya lithiamu-ion yomwe imatha kugwira ntchito paminus 60°C

Nambala yofalitsa ntchito CN 109980195 A

Tsiku lolengeza ntchito 2019.07.05

Nambala yofunsira 201910179588 .4

Tsiku lofunsira 2019.03.11

Yunivesite ya Jiangsu

Woyambitsa Ding Jianning Xu Jiang Yuan Ningyi Cheng Guanggui