Investigation of the Influence of Nanostructured LiNi0.33Co0.33Mn0.33O2 Lithium-Ion Battery Electrodes on Performance and Aging. Issue 2 (24th January 2018)

• Record Type: Journal Article
• Authors: Dreizler, Andreas M.; Bohn, Nicole; Geßwein, Holger; Müller, Marcus; Binder, Joachim R.; Wagner, Norbert; Friedrich, K. Andreas
• Is Part Of: Journal of the Electrochemical Society. Volume 165:Issue 2(2018)
• Page Start: A273
• Page End: A282
• Publication Date: 2018-01-24
• Subjects: lithium-ion battery -- long-term test -- nanostructured electrodes; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.1061802jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : The paper focuses on the performance and aging behavior of lithium nickel cobalt manganese oxide commercial standard material (NCM-111) which is improved with a post synthesis process in order to enhance the cathode active material of lithium-ion pouch cells regarding their capacity and cyclic stability. The aging behavior of the cells is analyzed with electrochemical impedance spectroscopy (EIS) during long-term electrochemical load cycling tests based on the Common Artemis Driving Cycle (CADC). Additionally, post-mortem investigations using scanning electron microscopy (SEM) and X-ray diffraction (XRD) were performed. The results demonstrate that post-processing of electrode active material is an effective tool to improve the properties of lithium-ion electrode materials, especially regarding high energy applications and lifetime optimization. The paper bridges the gap between lithium-ion battery electrode material development and the necessary cell testing under automotive relevant conditions which is important for the evaluation of new lithium-ion battery materials for automotive applications.