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Relationships between the crystal/interfacial properties and electrochemical performance of LiNi0.33Co0.33Mn0.33O2 in the voltage window of 2.5–4.6V

Bie, Xiaofei and Du, Fei and Wang, Yuhui and Zhu, Kai and Ehrenberg, Helmut and Nikolowski, Kristian and Wang, Chunzhong and Chen, Gang and Wei, Yingjin :
Relationships between the crystal/interfacial properties and electrochemical performance of LiNi0.33Co0.33Mn0.33O2 in the voltage window of 2.5–4.6V.
[Online-Edition: http://dx.doi.org/10.1016/j.electacta.2013.02.131]
In: Electrochimica Acta, 97 pp. 357-363. ISSN 00134686
[Article] , (2013)
Note:

SFB 595 B4

Official URL: http://dx.doi.org/10.1016/j.electacta.2013.02.131

Abstract

LiNi0.33Co0.33Mn0.33O2 which was synthesized by co-precipitation method has been used to investigate the relationships between crystal/interfacial structures and electrochemical performance of the material in the voltage range of 2.5–4.6 V. X-ray diffraction showed that the material maintained high structural stability with charge–discharge cycling. Formation of SEI film was observed by transmission electron microscopy. The chemical compositions of the SEI film were analyzed by X-ray photoelectron spectroscopy, which were mainly composed of some organic compounds such as lithium alkyl carbonate RCH2OCO2Li, as well as some inorganic compounds such as LixPFy and LixPOyFz. Transmission electron microscopy showed that the SEI film gradually grew to a thickness of about 40 nm after 30 cycles. This caused larger and larger interfacial resistance with charge–discharge cycling, which has been attributed to the continuous capacity fading of LiNi0.33Co0.33Mn0.33O2 in the voltage window of 2.5–4.6 V.

Item Type: Article
Erschienen: 2013
Creators: Bie, Xiaofei and Du, Fei and Wang, Yuhui and Zhu, Kai and Ehrenberg, Helmut and Nikolowski, Kristian and Wang, Chunzhong and Chen, Gang and Wei, Yingjin
Title: Relationships between the crystal/interfacial properties and electrochemical performance of LiNi0.33Co0.33Mn0.33O2 in the voltage window of 2.5–4.6V
Language: English
Abstract:

LiNi0.33Co0.33Mn0.33O2 which was synthesized by co-precipitation method has been used to investigate the relationships between crystal/interfacial structures and electrochemical performance of the material in the voltage range of 2.5–4.6 V. X-ray diffraction showed that the material maintained high structural stability with charge–discharge cycling. Formation of SEI film was observed by transmission electron microscopy. The chemical compositions of the SEI film were analyzed by X-ray photoelectron spectroscopy, which were mainly composed of some organic compounds such as lithium alkyl carbonate RCH2OCO2Li, as well as some inorganic compounds such as LixPFy and LixPOyFz. Transmission electron microscopy showed that the SEI film gradually grew to a thickness of about 40 nm after 30 cycles. This caused larger and larger interfacial resistance with charge–discharge cycling, which has been attributed to the continuous capacity fading of LiNi0.33Co0.33Mn0.33O2 in the voltage window of 2.5–4.6 V.

Journal or Publication Title: Electrochimica Acta
Volume: 97
Uncontrolled Keywords: Lithium ion battery; Crystal structure; Interfacial properties; Electrochemical kinetics; Charge–discharge
Divisions: DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B4: In situ investigations of the degradation of intercalation batteries and their modelling
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 22 May 2013 08:33
Official URL: http://dx.doi.org/10.1016/j.electacta.2013.02.131
Additional Information:

SFB 595 B4

Identification Number: doi:10.1016/j.electacta.2013.02.131
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