Revealing
the Structural Evolution and Phase Transformation of O3-Type NaNi1/3Fe1/3Mn1/3O2 Cathode Material
on Sintering and Cycling Processes
Posted on 2020-06-22 - 15:46
O-type
layered oxide cathode materials can be easily synthesized for a full
sodium stoichiometry with high specific capacity, but they all suffer
from a capacity fade on cycling. The sintering process control and
optimization are critical to ensure a high quality and consistency
of the prepared cathode materials with stable structure. Herein, in situ high-energy X-ray diffraction (HEXRD) was first
employed to investigate the phase evolution of the oxides during the
sintering process of O3-type NaNi1/3Fe1/3Mn1/3O2. The in situ HEXRD and both operando Bragg coherent diffraction (BCXD) and coherent
multicrystal diffraction (CMCD) were utilized to investigate the phase
transformation of the cathode materials during the sodiation/desodiation
process. A composite structure comprised of O-type and P-type oxides
was formed after the initial electrochemical activation of the cathode
material, resulting in good structural and electrochemical stability.
This finding implies that strain engineering can be a new design philosophy
for the development of next generation high-performance sodium ion
cathodes.
CITE THIS COLLECTION
DataCiteDataCite
3 Biotech3 Biotech
3D Printing in Medicine3D Printing in Medicine
3D Research3D Research
3D-Printed Materials and Systems3D-Printed Materials and Systems
4OR4OR
AAPG BulletinAAPG Bulletin
AAPS OpenAAPS Open
AAPS PharmSciTechAAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität HamburgAbhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)ABI Technik (German)
Academic MedicineAcademic Medicine
Academic PediatricsAcademic Pediatrics
Academic PsychiatryAcademic Psychiatry
Academic QuestionsAcademic Questions
Academy of Management DiscoveriesAcademy of Management Discoveries
Academy of Management JournalAcademy of Management Journal
Academy of Management Learning and EducationAcademy of Management Learning and Education
Academy of Management PerspectivesAcademy of Management Perspectives
Academy of Management ProceedingsAcademy of Management Proceedings
Academy of Management ReviewAcademy of Management Review
Xie, Yingying; Gao, Han; Harder, Ross; Li, Linsen; Gim, Jihyeon; Che, Haiying; et al. (2020). Revealing
the Structural Evolution and Phase Transformation of O3-Type NaNi1/3Fe1/3Mn1/3O2 Cathode Material
on Sintering and Cycling Processes. ACS Publications. Collection. https://doi.org/10.1021/acsaem.0c00475