A Lithium‐Ion Battery based on an Ionic Liquid Electrolyte, Tin–Carbon Nanostructured Anode, and Li2O–ZrO2‐Coated Li[Ni0.8Co0.15Al0.05]O2 Cathode
A Lithium‐Ion Battery based on an Ionic Liquid Electrolyte, Tin–Carbon Nanostructured Anode, and Li2O–ZrO2‐Coated Li[Ni0.8Co0.15Al0.05]O2 Cathode
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DOI：
10.1002/ente.201402226
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发表时间：
2015-06
影响因子：
3.8
通讯作者：
M. Agostini;Ulderico Ulissi;Daniele Di Lecce;Yuichi Ahiara;S. Ito;J. Hassoun
中科院分区：
文献类型：
--
作者：
M. Agostini;Ulderico Ulissi;Daniele Di Lecce;Yuichi Ahiara;S. Ito;J. Hassoun
该研究描述了采用离子液体（IL）基电解质、Li 2 O-ZrO 2涂覆的Li[Ni0.8Co0.15Al0.05O2]阴极和纳米结构的锡-碳（Sn-C）复合阳极的锂离子电池的特性。使用X射线衍射、扫描电子显微镜和透射电子显微镜研究阴极和阳极材料的结构和形态。通过电化学阻抗谱、伏安法和热重法研究了IL基电解质的电导率、锂离子传输、电化学和热稳定性。该电池基于阴极的锂嵌入/脱嵌过程和阳极的锂合金化/脱合金化过程，在约3.3 V下表现出100 mAh g− 1的稳定容量。 由于IL基电解质的不可燃性，本文提出的电池配置预计具有高安全性。
This study describes the characteristics of a lithium‐ion battery employing an ionic liquid (IL)‐based electrolyte, a Li2O–ZrO2‐coated Li[Ni0.8Co0.15Al0.05O2]cathode, and a nanostructured tin–carbon (Sn–C) composite anode. The structure and morphology of the cathode and anode materials were studied using X‐ray diffraction, scanning electron microscopy, and transmission electron microscopy. The properties of the IL‐based electrolyte were studied in terms of conductivity, lithium‐ion transport, electrochemical and thermal stability by electrochemical impedance spectroscopy, voltammetry, and thermogravimetry. The battery, based on a lithium intercalation/de‐intercalation process at the cathode and a lithium alloying/de‐alloying process at the anode, showed a stable capacity of 100 mAh g−1evolving at approximately 3.3 V. The cell configuration proposed here is expected to have high safety due to the nonflammability of the IL‐based electrolyte.