Minimization Of Capacity Fading In Li Rich Xli2mo3-(1-X)Limo2 Composite Cathode Based On Defect And Computational Considerations
Abstract
Among energy storage devices, Li ion batteries show the highest capacities (in Ah) in all aspects. The capacity of a battery is determined by both cathode and anode used. For anodes used in Li ion batteries, graphite is a typical example. With each intercalated Li ion surrounded by six C atoms, the capacity of graphite is easily estimated to be 372 mAh/g. Recent development of other anode materials such as SnO2, Sn alloy, Si, significantly improve the anode capacity to greater than 1000 or 2000 mAh/g. On the contrary, the cathode capacities are not only limited to an average below 150 mAh/g but also degrades with increasing cycling mainly due to its own structural instability. Thus, the weight of a Li ion battery tends to be limited by the cathode. When the weight or volume of Li ion battery module becomes an important issue, to improve the capacity and cycling performance of cathode is most critical.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 05, 2016
- Source ID
- FA23861614136
Entities
People
- Kuan-zong Fung
Organizations
- Air Force Office of Scientific Research
- National Cheng Kung University
- United States Air Force