Effect of Metal (Mn, Ti) Doping on NCA Cathode Materials for Lithium Ion Batteries
Joint Authors
Jin, En Mei
Wan, Dao Yong
Fan, Zhi Yu
Dong, Yong Xiang
Baasanjav, Erdenebayar
Jun, Hang-Bae
Jin, Bo
Jeong, Sang Mun
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-30
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
NCA (LiNi0.85Co0.10Al0.05-x MxO2, M=Mn or Ti, x < 0.01) cathode materials are prepared by a hydrothermal reaction at 170°C and doped with Mn and Ti to improve their electrochemical properties.
The crystalline phases and morphologies of various NCA cathode materials are characterized by XRD, FE-SEM, and particle size distribution analysis.
The CV, EIS, and galvanostatic charge/discharge test are employed to determine the electrochemical properties of the cathode materials.
Mn and Ti doping resulted in cell volume expansion.
This larger volume also improved the electrochemical properties of the cathode materials because Mn4+ and Ti4+ were introduced into the octahedral lattice space occupied by the Li-ions to expand the Li layer spacing and, thereby, improved the lithium diffusion kinetics.
As a result, the NCA-Ti electrode exhibited superior performance with a high discharge capacity of 179.6 mAh g−1 after the first cycle, almost 23 mAh g−1 higher than that obtained with the undoped NCA electrode, and 166.7 mAh g−1 after 30 cycles.
A good coulombic efficiency of 88.6% for the NCA-Ti electrode is observed based on calculations in the first charge and discharge capacities.
In addition, the NCA-Ti cathode material exhibited the best cycling stability of 93% up to 30 cycles.
American Psychological Association (APA)
Wan, Dao Yong& Fan, Zhi Yu& Dong, Yong Xiang& Baasanjav, Erdenebayar& Jun, Hang-Bae& Jin, Bo…[et al.]. 2018. Effect of Metal (Mn, Ti) Doping on NCA Cathode Materials for Lithium Ion Batteries. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1194856
Modern Language Association (MLA)
Wan, Dao Yong…[et al.]. Effect of Metal (Mn, Ti) Doping on NCA Cathode Materials for Lithium Ion Batteries. Journal of Nanomaterials No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1194856
American Medical Association (AMA)
Wan, Dao Yong& Fan, Zhi Yu& Dong, Yong Xiang& Baasanjav, Erdenebayar& Jun, Hang-Bae& Jin, Bo…[et al.]. Effect of Metal (Mn, Ti) Doping on NCA Cathode Materials for Lithium Ion Batteries. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1194856
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194856