Chemical, Structural, and Electronic Aspects of Formation and Degradation Behavior on Different Length Scales of Ni‐Rich NCM and Li‐Rich HE‐NCM Cathode Materials in Li‐Ion Batteries
Open Access
- 23 April 2019
- journal article
- review article
- Published by Wiley in Advanced Materials
- Vol. 31 (26), e1900985
- https://doi.org/10.1002/adma.201900985
Abstract
In order to satisfy the energy demands of the electromobility market, both Ni‐rich and Li‐rich layered oxides of NCM type are receiving much attention as high‐energy‐density cathode materials for application in Li‐ion batteries. However, due to different stability issues, their longevity is limited. During formation and continuous cycling, especially the electronic and crystal structure suffers from various changes, eventually leading to fatigue and mechanical degradation. In recent years, comprehensive battery research has been conducted at Karlsruhe Institute of Technology, mainly aiming at better understanding the primary degradation processes occurring in these layered transition metal oxides. The characteristic process of formation and mechanisms of fatigue are fundamentally characterized and the effect of chemical composition on cell chemistry, electrochemistry, and cycling stability is addressed on different length scales by use of state‐of‐the‐art analytical techniques, ranging from “standard” characterization tools to combinations of advanced in situ and operando methods. Here, the results are presented and discussed within a broader scientific context.Keywords
Funding Information
- BASF
This publication has 260 references indexed in Scilit:
- Reversible anionic redox chemistry in high-capacity layered-oxide electrodesNature Materials, 2013
- Structural transformation of a lithium-rich Li1.2Co0.1Mn0.55Ni0.15O2 cathode during high voltage cycling resolved by in situ X-ray diffractionJournal of Power Sources, 2013
- Enhanced high-rate capability and cycling stability of Na-stabilized layered Li1.2[Co0.13Ni0.13Mn0.54]O2 cathode materialJournal of Materials Chemistry A, 2013
- Correlation between dissolution behavior and electrochemical cycling performance for LiNi1/3Co1/3Mn1/3O2-based cellsJournal of Power Sources, 2012
- Structural Origin of Overcharge-Induced Thermal Instability of Ni-Containing Layered-Cathodes for High-Energy-Density Lithium BatteriesChemistry of Materials, 2011
- Influence of Cationic Substitutions on the Oxygen Loss and Reversible Capacity of Lithium-Rich Layered Oxide CathodesThe Journal of Physical Chemistry C, 2011
- Direct observation of the partial formation of a framework structure for Li-rich layered cathode material Li[Ni0.17Li0.2Co0.07Mn0.56]O2 upon the first charge and dischargeJournal of Power Sources, 2011
- A Novel Cathode Material with a Concentration‐Gradient for High‐Energy and Safe Lithium‐Ion BatteriesAdvanced Functional Materials, 2010
- Reversibility of LiNiO2 cathodeSolid State Ionics, 1997
- Structural aspects of lithium-manganese-oxide electrodes for rechargeable lithium batteriesMaterials Research Bulletin, 1990