电解质
锂(药物)
阴极
材料科学
沉积(地质)
薄膜
化学工程
锂离子电池的纳米结构
阳极
工程物理
纳米技术
化学
电极
电气工程
工程类
医学
古生物学
物理化学
沉积物
生物
内分泌学
作者
Zoey Warecki,Victoria Castagna Ferrari,Donald A. Robinson,Joshua D. Sugar,Jonathan R. I. Lee,Anton V. Ievlev,Nam Soo Kim,David B. Stewart,Sangbok Lee,Paul Albertus,Gary W. Rubloff,A. Alec Talin
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2024-04-09
卷期号:: 2065-2074
标识
DOI:10.1021/acsenergylett.4c00674
摘要
We show that the deposition of the solid-state electrolyte LiPON onto films of V2O5 leads to their uniform lithiation of up to 2.2 Li per V2O5, without affecting the Li concentration in the LiPON and its ionic conductivity. Our results indicate that Li incorporation occurs during LiPON deposition, in contrast to earlier mechanisms proposed to explain postdeposition Li transfer between LiPON and LiCoO2. We use our discovery to demonstrate symmetric thin film batteries with a capacity of >270 mAh/g, at a rate of 20C, and 1600 cycles with only 8.4% loss in capacity. We also show how autolithiation can simplify fabrication of Li iontronic transistors attractive for emerging neuromorphic computing applications. Our discovery that LiPON deposition results in autolithiation of the underlying insertion oxide has the potential to substantially simplify and enhance the fabrication process for thin film solid state Li ion batteries and emerging lithium iontronic neuromorphic computing devices.
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