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用于高性能全固态微型电池的聚合物电解质在多孔LiNiMnO中的电沉积

Electrodeposition of Polymer Electrolyte Into Porous LiNiMnO for High Performance All-Solid-State Microbatteries.

作者信息

Salian Girish D, Lebouin Chrystelle, Galeyeva Alina, Kurbatov Andrey P, Djenizian Thierry

机构信息

Electrochemistry of Materials Research Group, Aix Marseille Univ, CNRS, MADIREL, Marseille, France.

Department of Chemistry and Chemical Technology, Al Farabi Kazakh National University, Alma Ata, Kazakhstan.

出版信息

Front Chem. 2019 Jan 23;6:675. doi: 10.3389/fchem.2018.00675. eCollection 2018.

DOI:10.3389/fchem.2018.00675
PMID:30729104
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6351485/
Abstract

We report the electrodeposition of polymer electrolyte (PMMA-PEG) in porous lithium nickel manganese oxide (LiNiMnO) cathode layer by cyclic voltammetry. The cathode-electrolyte interface of the polymer-coated LNMO electrode has been characterized by scanning electron microscopy and electrochemical techniques. Electrochemical measurements consisting of galvanostatic cycling tests and electrochemical impedance spectroscopy revealed a significant improvement of the capacity values and the increase of the operating voltage. These effects are attributed to the total filling of pores by the electrodeposited polymer that contributes to improve the reversible insertion of Li. A complete all-solid-state microbattery consisting of electropolymerized LNMO as the cathode, a thin polymer layer as the electrolyte, and TiO nanotubes as the anode has been successfully fabricated and tested.

摘要

我们报道了通过循环伏安法在多孔锂镍锰氧化物（LiNiMnO）阴极层中电沉积聚合物电解质（PMMA - PEG）。聚合物包覆的LNMO电极的阴极 - 电解质界面已通过扫描电子显微镜和电化学技术进行了表征。由恒电流循环测试和电化学阻抗谱组成的电化学测量表明，容量值有显著提高，工作电压也有所增加。这些效应归因于电沉积聚合物对孔隙的完全填充，这有助于改善锂的可逆嵌入。一个由电聚合的LNMO作为阴极、薄聚合物层作为电解质以及TiO纳米管作为阳极组成的完整全固态微型电池已成功制备并测试。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/56ac88e7e05c/fchem-06-00675-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/296dfd8bbbfd/fchem-06-00675-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/89d1d29d818d/fchem-06-00675-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/3ffdaaea6228/fchem-06-00675-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/3895ee24ebd0/fchem-06-00675-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/e327ef76b0f4/fchem-06-00675-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/c773ffe780a2/fchem-06-00675-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/56ac88e7e05c/fchem-06-00675-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/296dfd8bbbfd/fchem-06-00675-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/89d1d29d818d/fchem-06-00675-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/3ffdaaea6228/fchem-06-00675-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/3895ee24ebd0/fchem-06-00675-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/e327ef76b0f4/fchem-06-00675-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/c773ffe780a2/fchem-06-00675-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/704c/6351485/56ac88e7e05c/fchem-06-00675-g0007.jpg

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