Atomic Layer Deposition Significantly Enhancing Performance of Lithium Ion Batteries

来源 :第31届全国化学与物理电源学术年会 | 被引量 : 0次 | 上传用户:chenfengling
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The atomic layer deposition (ALD) technique is a surface-controlled and layer-by-layer process,relying on two sequential self terminating half-reactions,offering unmatched precision in terms of controlling the ratio and morphology of the crystalline and amorphous phases of deposited materials.[1-4] Thus,ALD shows significant promise for synthesis of anodes and cathodes and ultra-thin film coating layers on active electrodes in lithium ion batteries (LIBs).The charge cutoff voltage over 4.2 V incurred the dissolution of LiCoO2 into the electrolyte,thereby causing an increased capacity fade upon cycling.ALD derived coatings were employed to mitigate the capacity fading of LiCoO2 in order to satisfy LIB application.
其他文献
The direct conversion of syngas to ethanol and other C2-oxygenates have attracted much attention in recent years because of the urgent needs for the development of non-petroleum clean fuel and biofuel
会议
The activation of both molecules to be oxidized and O2 is critical to accomplish highly efficient catalytic aerobic oxidation under mild conditions,which,however,is very challenging to be achieved and
会议
A facile method to assemble two dimensional surface-clean Pd nanosheets[1] (Pd NSs) into one dimensional nanowires has been developed.The length of nanowires can be well controlled by regulating the c
会议
An effective strategy for reducing the Pt content while retaining the activity of a Pt-based catalyst is to deposit the Pt atoms as ultrathin skins of only a few atomic layers thick on nanoscale subst
会议
Macroscopic 3D architectures from low dimensional nanomaterials are showing increasing significance,[1-3] much effort has been devoted to the organization of them into macroscopic serviceable material
会议
Three dimensional highly hierarchical flower-like Bi2WO6 microspheres self aggregated by nanoplates have been fabricated in a green hydrothermal way at low temperature,without using any template or se
会议
Resorcinol-formaldehyde (RF) and graphene-oxide (GO) gels have a variety of applications due to their excellent and remarkably flexible properties.[1,2] Despite a lot of efforts,there are still great
会议
The hierarchical assembly of inorganic and organic building blocks is an efficient strategy to produce high performance materials which has been demonstrated in various biomaterials.[1,2] In the past
会议
以氧化石墨烯、正硅酸四乙酯和苯胺单体为原料,采用两步法制备了石墨烯/二氧化硅/聚苯胺三元复合材料.采用循环伏安法对材料进行电化学性能测试[1],结果表明,当氧化石墨烯与苯胺单体的投料比为1:50时,在1 MH2SO4电解液中,在扫描速度1 mV/s下,三元复合材料的比容量达554.5 F/g,远大于石墨烯/二氧化硅的比容量(144 F/g).
The development of environment-friendly and high energy density cathode materials is highly desired for the clean and sustainable Li-ion batteries (LIBs) system.To take advantage the effect of oxygen-
会议