Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 7, Issue 17, Pages 14539-14544Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b02099
Keywords
LiCrTiO4; nanowires; cathode; Me2+/Li+ hybrid batteries
Categories
Funding
- National Natural Science Foundation of China [51672235]
- National Ten Thousand Talents Program
- Program for Changjiang Scholars and Innovative Research Team in the University of Ministry of Education of China [IRT1081]
Ask authors/readers for more resources
Magnesium-lithium hybrid batteries attract considerable attention due to combined advantages of metallic magnesium anode (free dendrite) and Li-driven reaction cathode (fast ion diffusion rate). In this work, nanowired LiCrTiO4 with moderate redox potential is chosen as a potential cathode material for magnesium-lithium hybrid batteries. LiCrTiO4 nanowires are made up of small dispersed nanoparticles. In such a structure, the diffusion/migration barrier of Li+ insertion is reduced and the infiltration of electrolyte is enhanced, leading to faster ion diffusion rates and smaller potential polarization. The Mg2+/Li+ hybrid battery exhibits a high reversible capacity (128.7 mA h g(-1) after 100 cycles at 50 mA g(-1)) and excellent rate performance (even at a high current density of 500 mA g(-1), a specific capacity of 110.1 mA h g(-1) can be still achieved, corresponding to 67.8% of that at 30 mA g(-1)). Notably, the ion storage mechanism of LiCrTiO4 nanowires in Mg2+/Li+ hybrid battery is systematically investigated by ex situ X-ray diffraction and ex situ X-ray photoelectron spectroscopy. This research demonstrates that the nanowired LiCrTiO4 cathode is a high-performance candidate for magnesium-lithium hybrid batteries.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available