NDLI: Effects of constant voltage at low potential on the formation of LiMnO2/graphite lithium ion battery

Content Provider	Springer Nature Link
Author	Yang, Daojun Zhao, Hongliang Wang, Jianping Sun, Ying Wu, Ningning Tian, Wenhuai
Copyright Year	2014
Abstract	The effect of formation protocol including different constant voltage points at low potential, different constant voltage time, and different current were studied in this paper. The electrochemical impedance spectroscopy and stored and cycle performance tests were used to verify the parameter of different formation protocols. The results show that the resistance of solid electrolyte interphase film R f drops during the whole potential range except 3.1 to 3.5 V and the diffusion coefficient P f which represents the uniformity of anode electrode surface decreases only at this potential range. The effects of different constant voltage points at 3.1 to 3.5 V were studied to increase the uniformity of anode electrode surface and decrease the resistance of the SEI film. The film is more stable at 3.3 V constant voltage than other potentials, and a constant voltage 60 min is enough to form a uniformity and compact passivation layer. With the constant voltage time extending, the P f decreases. When the formation current to constant potential is increased, the film is more loose (or porous) and less adhesive. The formation protocol of 0.01 C to 3.3 V constant voltage 60 min shows the best cycling performance, and formation protocol of no constant voltage shows the worst cycling performance. Considering the time and energy consumption, the formation protocol of 0.05 C to 3.3-V constant voltage 60 min is the best.
Starting Page	1907
Ending Page	1914
Page Count	8
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	18
Issue Number	7
e-ISSN	14330768
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-03-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Formation protocol Current Constant voltage Cycle performance LiMnO2/graphite battery Physical Chemistry Electrochemistry Energy Storage Characterization and Evaluation of Materials Analytical Chemistry Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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