20220302-science
Self-assembled monolayers direct a LiF-rich interphase toward long-life lithium metal batteries
實(shí)驗(yàn)?zāi)康模轰嚱饘僦г陔姵匮h(huán)過程中會(huì)刺穿隔膜,降低容量。
常用方法:1.使用固體電解質(zhì);2.添加多功能含氟電解質(zhì)
本實(shí)驗(yàn)策略:自組裝單層分子(SAM)層由于偶極矩(SAM有導(dǎo)向分子和定向端基)會(huì)影響電子轉(zhuǎn)移的動(dòng)力學(xué)和電解液的電化學(xué)氧化性。Al2O3-OOC(CH2)2X包裹的隔膜,末端基團(tuán)-COOH可以促進(jìn)F鍵的斷裂,形成穩(wěn)定的含氟SEI膜,促進(jìn)鋰離子傳輸?shù)耐瑫r(shí)抑制鋰枝晶的生成。(負(fù)極保護(hù)的反向操作)

具體方程表示:


效果:


Yujing Liu et. al.,?Self-assembled monolayers direct a LiF-rich?interphase toward long-life lithium metal batteries, Science,?375?(6582),?739-745, (2022)?DOI: 10.1126/science.abn1818
今日目標(biāo):(完成率:36%)
修圖-分析數(shù)據(jù)-未完成
文獻(xiàn)達(dá)成一篇+運(yùn)動(dòng)20min
文章預(yù)告:
Enhanced corrosion resistance by engineering crystallography on metals (NC)
https://www.nature.com/articles/s41467-022-28368-8.pdf