Crystal Chemistry and Electrochemistry of LixMn1.5Ni0.5O4 Solid Solution Cathode Materials

• Published in: Chemistry of materials Vol. 29; no. 16
• Main Authors: Kan, Wang Hay, Kuppan, Saravanan, Cheng, Lei, Doeff, Marca, Nanda, Jagjit, Huq, Ashfia, Chen, Guoying
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society (ACS) 22.08.2017
• Subjects: INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

For ordered high-voltage spinel LiMn1.5Ni0.5O4 (LMNO) with the P4321 symmetry, the two consecutive two-phase transformations at ~4.7 V (vs Li+/Li), involving three cubic phases of LMNO, Li0.5Mn1.5Ni0.5O4 (L0.5MNO), and Mn1.5Ni0.5O4 (MNO), have been well-established. Such a mechanism is traditionally...