Does trapped O <sub>2</sub> form in the bulk of LiNiO <sub>2</sub> during charging?
Mikkel Juelsholt, Jun Chen, Miguel A. Pérez‐Osorio, Gregory J. Rees, Sofia De Sousa Coutinho, Helen E. Maynard‐Casely, Jue Liu, Michelle Everett, Stefano Agrestini, Mirian García‐Fernández, Ke‐Jin Zhou, Robert A. House, Peter G. Bruce
Abstract
The charge storage mechanism in LiNiO 2 in Li-ion batteries is still under debate. Here, we show that trapped O 2 forms during delithiation in LiNiO 2 , accommodated by Ni vacancies, which form in the Ni layer.
Topics & Concepts
Materials scienceCondensed matter physicsCrystallographyPhysicsChemistryAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesSemiconductor materials and devices