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Effect of composite conductive agent on internal resistance and performance of lithium iron phosphate batteries

Effect of composite conductive agent on internal resistance and performance of lithium iron... In this paper, carbon nanotubes and graphene are combined with traditional conductive agent (Super-P/KS-15) to prepare a new type of composite conductive agent to study the effect of composite conductive agent on the internal resistance and performance of lithium iron phosphate batteries. Through the SEM, internal resistance test and electrochemical performance test, carbon nanotubes and graphene composite traditional conductive agent (Super-P/KS-15) form an effective three-dimensional conductive network of points, lines, and surfaces. When the ratio of graphene to carbon nanotubes is 1:3 to compound the traditional conductive agent, the prepared pole piece has a higher compaction density, and the prepared battery has the smallest battery internal resistance. The increase in internal resistance after the cycle is also minimized, which shows the most excellent processing performance and electrochemical performance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Effect of composite conductive agent on internal resistance and performance of lithium iron phosphate batteries

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References (33)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-022-04491-w
Publisher site
See Article on Publisher Site

Abstract

In this paper, carbon nanotubes and graphene are combined with traditional conductive agent (Super-P/KS-15) to prepare a new type of composite conductive agent to study the effect of composite conductive agent on the internal resistance and performance of lithium iron phosphate batteries. Through the SEM, internal resistance test and electrochemical performance test, carbon nanotubes and graphene composite traditional conductive agent (Super-P/KS-15) form an effective three-dimensional conductive network of points, lines, and surfaces. When the ratio of graphene to carbon nanotubes is 1:3 to compound the traditional conductive agent, the prepared pole piece has a higher compaction density, and the prepared battery has the smallest battery internal resistance. The increase in internal resistance after the cycle is also minimized, which shows the most excellent processing performance and electrochemical performance.

Journal

IonicsSpringer Journals

Published: Jul 1, 2022

Keywords: Composite conductive agent; Lithium iron phosphate batteries; Internal resistance; Electrochemical performance

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