Intrinsic rapid Na+ intercalation observed in NaxCoO2 thin film
Intrinsic rapid Na+ intercalation observed in NaxCoO2 thin film
复制标题
DOI：
10.1063/1.4794719
复制
发表时间：
2013-03-01
期刊：
影响因子：
1.6
通讯作者：
Moritomo, Y.
中科院分区：
文献类型：
--
作者：
Shibata, T.;Kobayashi, W.;Moritomo, Y.
研究了脉冲激光沉积法制备的NaxCoO 2薄膜电极的电化学性能。在膜中实现了400 C的高倍率以及良好的循环性能，其中在1000次循环后其容量保持初始容量的84.4%。NaxCoO（2）薄膜即使在200 ℃的高速率下也表现出明显的由Na+嵌入引起的结构相变。该观察结果表明NaxCoO（2）中快速且高度可逆的Na+嵌入的本体性质。版权所有2013作者。本文是在知识共享署名3.0未移植许可证下发布的。[http：//dx.doi.org/10.1063/1.4794719]
Electrochemical properties are investigated for thin film electrode of NaxCoO2, which was fabricated by pulsed laser deposition. A high rate of 400 C was realized in the film together with a fine cyclability where its capacity after 1000 cycles remains 84.4% of the initial one. The NaxCoO(2) thin film exhibits a clear sign of the structural phase transition induced by Na+ intercalation even at the high rate of 200 C. This observation indicates bulk nature of the rapid and highly-reversible Na+ intercalation in NaxCoO(2). Copyright 2013 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4794719]