Negative Lattice Expansion in an O3‐Type Transition‐Metal Oxide Cathode for Highly Stable Sodium‐Ion Batteries
Authors:
- 16 January 2024
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 63 (8) , e202316949
Abstract
The sodium extraction/insertion in layered transition‐metal oxide (TMO) cathode materials are typically accompanied by slab sliding and lattice changes, leading to microstructure destruction and capacity decay. Herein, negative lattice expansion is observed in an O3 type Ni‐based layered cathode of Na0.9Ni0.32Zn0.08Fe0.1Mn0.3Ti0.2O2 upon Na+ extraction. It is attributed to the weak Zn2+−O2− orbital hybridization and increased electron density of the surrounding oxygen for reinforced interlayer O−O repulsive force. This enables gliding of TMO slabs for the intergrowth phase transition of P3→OP2 to alleviate lattice strain with moderate lattice shrinkage, which exhibits general interslab spacings and volume changes as low as 2.4 % and 1.9 %, respectively. The strong Ti−O bonds accommodate the internal distortion of TMO6 octahedra due to the flexibility of TiO6 octahedra during cycling. These endow a high specific capacity of 144.9 mAh g−1 and excellent cycling performance of pouch‐type sodium‐ion batteries with 93 % capacity retention after 3600 cycles.Keywords
Funding Information
- National Natural Science Foundation of China (22325902, 52171215)
This publication has 41 references indexed in Scilit:
- A Universal Strategy toward Air‐Stable and High‐Rate O3 Layered Oxide Cathodes for Na‐Ion BatteriesAdvanced Functional Materials, 2022
- Whole‐Voltage‐Range Oxygen Redox in P2‐Layered Cathode Materials for Sodium‐Ion BatteriesAdvanced Materials, 2021
- Direct Observation of Alternating Octahedral and Prismatic Sodium Layers in O3‐Type Transition Metal OxidesAdvanced Energy Materials, 2020
- High‐Voltage‐Driven Surface Structuring and Electrochemical Stabilization of Ni‐Rich Layered Cathode Materials for Li Rechargeable BatteriesAdvanced Energy Materials, 2020
- Reaching the Energy Density Limit of Layered O3‐NaNi0.5Mn0.5O2 Electrodes via Dual Cu and Ti SubstitutionAdvanced Energy Materials, 2019
- Anionic Redox Activity in a Newly Zn‐Doped Sodium Layered Oxide P2‐Na2/3Mn1−yZnyO2 (0 < y < 0.23)Advanced Energy Materials, 2018
- Electrochemistry and Solid‐State Chemistry of NaMeO2 (Me = 3d Transition Metals)Advanced Energy Materials, 2018
- A Chemical Approach to Raise Cell Voltage and Suppress Phase Transition in O3 Sodium Layered Oxide ElectrodesAdvanced Energy Materials, 2018
- High Energy Density Sodium‐Ion Battery with Industrially Feasible and Air‐Stable O3‐Type Layered Oxide CathodeAdvanced Energy Materials, 2017
- A Honeycomb‐Layered Oxide Cathode for Sodium‐Ion Batteries with Suppressed P3–O1 Phase TransitionAdvanced Energy Materials, 2016