Effects of Coating on the Electrochemical Performance of a Nickel-Rich Cathode Active Material

Eman Hassan, Mahdi Amiriyan, Dominic Frisone, Joshua Dunham, Rashid Farahati and Siamak Farhad
Additional contact information
Eman Hassan: Advanced Energy and Manufacturing Laboratory, Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
Mahdi Amiriyan: Schaeffler Group, Wooster, OH 44691, USA
Dominic Frisone: Advanced Energy and Manufacturing Laboratory, Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
Joshua Dunham: Advanced Energy and Manufacturing Laboratory, Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
Rashid Farahati: Schaeffler Group, Wooster, OH 44691, USA
Siamak Farhad: Advanced Energy and Manufacturing Laboratory, Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA

Energies, 2022, vol. 15, issue 13, 1-15

Abstract: Due to their safety and high power density, one of the most promising types of all-solid-state lithium batteries is the one made with the argyrodite solid electrolyte (ASE). Although substantial efforts have been made toward the commercialization of this battery, it is still challenged by some technical issues. One of these issues is to prevent the side reactions at the interface of the ASE and the cathode active material (CAM). A solution to address this issue is to coat the CAM particles with a material that is compatible with both ASE and CAM. Prior studies show that the lithium niobate, LiNbO 3 , (LNO) is a promising material for coating CAM particles to reduce the interfacial side reactions. However, no systematic study is available in the literature to show the effect of coating LNO on CAM performance. This paper aims to quantify the effect of LNO coating on the electrochemical performance of a nickel-rich CAM. The electrochemical performance parameters that are studied are the capacity, cycling performance, and rate performance of the coated-CAM; and the effectiveness of the coating to prevent the side reactions at the ASE and CAM interface is out of the scope of this study. To eliminate the effect of side reactions at the ASE and CAM interface, we conduct all tests in the organic liquid electrolyte (OLE) cells to solely present the effect of coating on the CAM performance. For this purpose, 0.5 wt.% and 1 wt.% LNO are used to coat the LiNi 0.6 Mn 0.2 Co 0.2 O 2 (NMC-60) CAM through two synthesizing methods. Consequently, the effects of the synthesizing method and the coating weight percentage on the NMC-60 performance are presented.

Keywords: coating; wet process; nickel-rich NMC; lithium niobate; electrochemical performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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