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首页> 外文期刊>Journal of power sources >Redox behavior and surface characterization of LiFePO_4 in lithium hydroxide electrolyte
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Redox behavior and surface characterization of LiFePO_4 in lithium hydroxide electrolyte

机译：LiFePO_4在氢氧化锂电解质中的氧化还原行为和表面表征

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摘要

The redox behavior and surface characterization of LiFePO_4 in aqueous lithium hydroxide (LiOH) electrolyte have been investigated. The objective of this work is to investigate the electrochemical behavior of LiFePO_4 in an aqueous lithium hydroxide electrolyte and its comparison with that in non-aqueous lithium ion electrolytes. Cyclic voltammetry results show that LiFePO_4 undergoes partially reversible oxidation/reduction. The products formed on electrooxidation and subsequent reduction of LiFePO_4 were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS). It is found that lithium extraction from LiFePO_4 occurs during oxidation. The products formed on subsequent reduction consist of LiFePO_4 and Fe_3O_4.
机译：研究了LiFePO_4在氢氧化锂（LiOH）水溶液中的氧化还原行为和表面表征。这项工作的目的是研究LiFePO_4在氢氧化锂水溶液中的电化学行为，并将其与非水锂离子电解质进行比较。循环伏安法结果表明，LiFePO_4经历了部分可逆的氧化/还原。通过X射线衍射（XRD），X射线光电子能谱（XPS）和二次离子质谱（SIMS）对通过电氧化和随后还原LiFePO_4形成的产物进行表征。发现在氧化期间从LiFePO_4中提取锂。随后还原形成的产物由LiFePO_4和Fe_3O_4组成。

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