A Solid-State, Rechargeable, Long Cycle Life Lithium-Air Battery (Postprint)
Abstract
This paper describes a totally solid-state, rechargeable, long cycle life lithium-oxygen battery cell. The cell is comprised of a Li metal anode, a highly Li-ion conductive solid electrolyte membrane laminate fabricated from glass-ceramic (GC) and polymer-ceramic materials, and a solid-state composite air cathode prepared from high surface area carbon and ionically conducting GC powder. The cell exhibited excellent thermal stability and rechargeability in the 30-105 C temperature range. It was subjected to 40 charge-discharge cycles at current Densities ranging from 0.05 to 0.25mA/sq cm. The reversible charge/discharge voltage profile of the Li-O2 cell with low polarizations between the discharge and charge are remarkable for a displacement-type electrochemical cell reaction involving the reduction of oxygen to form lithium peroxide. The results represent a major contribution in the quest of an ultra high energy density electrochemical power source. We believe that the Li-O2 cell, when fully developed, could exceed specific energies of 1000 Wh/kg in practical configurations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2010
- Accession Number
- ADA515393
Entities
People
- Binod Kumar
- Jitendra Kumar
- Joseph P. Fellner
- K. M. Abraham
- Robert Leese
- Stanley J. Rodrigues
Organizations
- Air Force Research Laboratory