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Metals 2017, 7(9), 372; doi:10.3390/met7090372

The Fabrication of All-Solid-State Lithium-Ion Batteries via Spark Plasma Sintering

1
Department of Mechanical Engineering, San Diego State University, 5500 Campanile Dr., San Diego, CA 92182, USA
2
Department of Nano Engineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92037, USA
*
Author to whom correspondence should be addressed.
Received: 23 July 2017 / Revised: 31 August 2017 / Accepted: 11 September 2017 / Published: 14 September 2017
(This article belongs to the Special Issue Powder Synthesis and Processing)
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Abstract

Spark plasma sintering (SPS) has been successfully used to produce all-solid-state lithium-ion batteries (ASSLibs). Both regular and functionally graded electrodes are implemented into novel three-layer and five-layer battery designs together with solid-state composite electrolyte. The electrical capacities and the conductivities of the SPS-processed ASSLibs are evaluated using the galvanostatic charge-discharge test. Experimental results have shown that, compared to the three-layer battery, the five-layer battery is able to improve energy and power densities. Scanning electron microscopy (SEM) is employed to examine the microstructures of the batteries especially at the electrode–electrolyte interfaces. It reveals that the functionally graded structure can eliminate the delamination effect at the electrode–electrolyte interface and, therefore, retains better performance. View Full-Text
Keywords: spark plasma sintering; all-solid-state Li-ion batteries; functionally graded electrodes; composite ceramic electrolyte spark plasma sintering; all-solid-state Li-ion batteries; functionally graded electrodes; composite ceramic electrolyte
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wei, X.; Rechtin, J.; Olevsky, E.A. The Fabrication of All-Solid-State Lithium-Ion Batteries via Spark Plasma Sintering. Metals 2017, 7, 372.

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