Effect of LiNbO3 Coating on Capacity and Cycling of Nickel-Rich NMC Cathode Active Material

Frisone, Dominic; Amiriyan, M.; Hassan, Eman; Dunham, Joshua; Farahati, Rashid; Farhad, Siamak

doi:10.1115/imece2021-73728

Cited by 2 publications

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“…The understanding gained from this study can guide further optimization efforts and contribute to the development of safe, high-performance solid-state batteries for various applications. The authors also refer the readers to references [36][37][38][39][40] for further information on argyrodite electrolytes and solid-state lithium batteries.…”

Section: Effect Of Pelletizing Temperature On Ionic Conductivitymentioning

confidence: 99%

Ionic Conductivity of the Li6PS5Cl0.5Br0.5 Argyrodite Electrolyte at Different Operating and Pelletizing Pressures and Temperatures

Dunham,

Carfang,

et al. 2023

Energies

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All-solid-state lithium batteries (ASSLBs) using argyrodite electrolyte materials have shown promise for applications in electric vehicles (EVs). However, understanding the effects of processing parameters on the ionic conductivity of these electrolytes is crucial for optimizing battery performance and manufacturing methods. This study investigates the influence of electrolyte operating temperature, electrolyte operating pressure, electrolyte pelletization pressure, and electrolyte pelletizing temperature on the ionic conductivity of the Li6PS5Cl0.5Br0.5 argyrodite electrolyte (AmpceraTM, D50 = 10 µm). A specially designed test cell is employed for the experimental measurements, allowing for controlled pelletization and testing within the same tooling. The results demonstrate the significant impact of the four parameters on the ionic conductivity of the argyrodite electrolyte. The electrolyte operating temperature has a more pronounced effect than operating pressure, and pelletizing temperature exerts a greater influence than pelletizing pressure. This study provides graphs that aid in understanding the interplay between these parameters and achieving desired conductivity values. It also establishes a baseline for the maximum pelletizing temperature before undesirable degradation of the electrolyte occurs. By manipulating the pelletizing pressure, operating pressure, and pelletizing temperature, battery engineers can achieve the desired conductivity for specific applications. The findings emphasize the need to consider operating conditions to ensure satisfactory low-temperature performance, particularly for EVs. Overall, this study provides valuable insights into processing and operating conditions for ASSLBs utilizing the Li6PS5Cl0.5Br0.5 argyrodite electrolyte.

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Section: Effect Of Pelletizing Temperature On Ionic Conductivitymentioning

confidence: 99%

Ionic Conductivity of the Li6PS5Cl0.5Br0.5 Argyrodite Electrolyte at Different Operating and Pelletizing Pressures and Temperatures

Dunham,

Carfang,

et al. 2023

Energies

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“…For details, the readers are referred to the authors' other publications in Ref. [27]. For preparation of the LNO coated NMC-60 with the desired coating thickness, whether using Method-I or Method-II, the mass fraction of initial materials for CH 3 CH 2 OLi, Nb(CH 3 CH 2 O) 5 , and uncoated NMC-60 are obtained from Equations ( 5)- (7).…”

Section: Coating Formulationsmentioning

confidence: 99%

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

Hassan

Amiriyan²,

Frisone

et al. 2022

Energies

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: 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, LiNbO3, (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 LiNi0.6Mn0.2Co0.2O2 (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.

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Effect of LiNbO3 Coating on Capacity and Cycling of Nickel-Rich NMC Cathode Active Material

Cited by 2 publications

References 0 publications

Ionic Conductivity of the Li6PS5Cl0.5Br0.5 Argyrodite Electrolyte at Different Operating and Pelletizing Pressures and Temperatures

Ionic Conductivity of the Li6PS5Cl0.5Br0.5 Argyrodite Electrolyte at Different Operating and Pelletizing Pressures and Temperatures

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

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