Spontaneous reaction between an uncharged lithium iron silicate cathode and a LiPF6-based electrolyte.
Spontaneous reaction between an uncharged lithium iron silicate cathode and a LiPF6-based electrolyte.
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DOI：
10.1039/c5cc07197f
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发表时间：
2016-01
影响因子：
4.9
通讯作者：
Z. Arthur;H. Chiu;Xia Lu;N. Chen;V. Emond;K. Zaghib;D. Jiang;G. Demopoulos
中科院分区：
文献类型：
--
作者：
Z. Arthur;H. Chiu;Xia Lu;N. Chen;V. Emond;K. Zaghib;D. Jiang;G. Demopoulos
在纽扣电池中，通过原位XANES揭示了不带电的Li 2FeSiO 4（LFS）阴极和LiPF 6-EC/DMC电解质之间的反应。这项研究表明，在LFS循环前脱锂和铁氧化的明确证据。随后的循环似乎部分恢复了原始的锂化水平，这一观察结果需要在未来的LFS开发工作中加以考虑。
The reaction between an uncharged Li2FeSiO4 (LFS) cathode and a LiPF6-EC/DMC electrolyte is revealed by in situ XANES in coin cells. This study shows clear evidence of delithiation and iron oxidation in LFS prior to cycling. Subsequent cycling appears to partially restore the original lithiation level, an observation that needs to be taken into consideration in future LFS development work.