Journal article

Publication year: 2021

Pages: 3020-3028

Journal: ACS Energy Letters

Volume number: 6

Issue number: 9

ISSN: 2380-8195

DOI Link: https://doi.org/10.1021/acsenergylett.1c01447

Publisher: American Chemical Society

Abstract: 
Solid-state batteries (SSBs) have been touted as the next major milestone for electrochemical energy storage, improving safety and enabling higher energy densities. LiNiO2 (LNO) has long been considered a promising cathode material; however, its commercial implementation is complicated by stability issues, including reactivity toward the electrolyte components. To address this, a detailed study probing the electrochemical behavior of LNO in pellet-stack SSB cells, in combination with argyrodite Li6PS5Cl solid electrolyte (SE) and Li4Ti5O12 anode, is for the first time presented herein. In this configuration, LNO delivers a specific capacity of 105 mAh/g(LNO) after 60 cycles (0.2C, 45 degrees C), which was improved considerably to 153 mAh/g(LNO) by applying a LiNbO3 coating to the material. Using complementary operando and ex situ characterization techniques, contributions to the initial capacity loss and capacity fading could be resolved and attributed to decomposition of the argyrodite SE and to volume changes and gas evolution in LNO.

Harvard Citation style: Ma, Y., Teo, J., Kitsche, D., Diemant, T., Strauss, F., Ma, Y., et al. (2021) Cycling Performance and Limitations of LiNiO2 in Solid-State Batteries, ACS Energy Letters, 6(9), pp. 3020-3028. https://doi.org/10.1021/acsenergylett.1c01447

APA Citation style: Ma, Y., Teo, J., Kitsche, D., Diemant, T., Strauss, F., Ma, Y., Goonetilleke, D., Janek, J., Bianchini, M., & Brezesinski, T. (2021). Cycling Performance and Limitations of LiNiO2 in Solid-State Batteries. ACS Energy Letters. 6(9), 3020-3028. https://doi.org/10.1021/acsenergylett.1c01447