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首页> 外文期刊>International Journal of Electrochemical Science >Indirect Oxidation of LiCoO2 Electrodes: More Severe Conditions to Analyze the Interface Performance
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Indirect Oxidation of LiCoO2 Electrodes: More Severe Conditions to Analyze the Interface Performance

机译：LiCoO 2 电极的间接氧化：更苛刻的条件来分析界面性能

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摘要

The transport of electrolyte was characterized by the probe current above the LiCoO2 substrate usingthe probe approach curve (PAC) at a constant probe potential (4.8 V) and linear sweep voltammetry(LSV) at a fixed position from the substrate. The current in the LSV experiment increased as the probewas within 3 of the substrate, whereas the current at the PAC decreased significantly. The increase- of the probe current in the LSV was induced by the circulation of the redox reactant, PF6 ions, whichis continuously oxidized at the probe while the oxidized species is reduced at the LiCoO2 substrate inthe narrow space. This indirect oxidation of the LiCoO2 substrate was observed by applying the ProbeGeneration/Substrate Generation to the Probe Collection (PG/SGC) mode, which is more severethan the typical SG/PC mode. Therefore, this approach provides new technology to design anelectrolyte for Li ion batteries with high rate performance.
机译：电解质的传输通过在恒定探针电势（4.8 V）下使用探针逼近曲线（PAC）和在距基质固定位置的线性扫描伏安法（LSV）在LiCoO2基底上方的探针电流来表征。 LSV实验中的电流随着探针位于衬底3之内而增加，而PAC处的电流则显着降低。 LSV中探针电流的增加是由氧化还原反应物PF6离子的循环引起的，PF6离子在探针处连续被氧化，而在狭窄空间中的LiCoO2衬底上被氧化的物种被还原。通过将ProbeGeneration / Substrate Generation应用于Probe Collection（PG / SGC）模式，可以观察到LiCoO2基板的这种间接氧化，这种模式比典型的SG / PC模式更为严重。因此，该方法为设计高倍率性能的锂离子电池电解液提供了新技术。

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