Accession Number:

ADA564754

Title:

Lithium-Air Battery: Study of Rechargeability and Scalability

Descriptive Note:

Final rept. May 2010-May 2012

Corporate Author:

INDIAN INST OF SCIENCE BANGALORE (INDIA) DEPT OF INORGANIC AND PHYSICAL CHEMISTRY

Personal Author(s):

• Nookala, Munichandraiah

Report Date:

2012-07-01

Pagination or Media Count:

41.0

Abstract:

Lithium-air battery is anticipated as the battery with highest energy density among all existing rechargeable battery systems known now. Literature reports suggest that the theoretical energy density of Li-air battery is close to that of gasoline. Thus, if successfully developed, rechargeable Li-air battery will be a suitable substitute for gasoline for electric vehicles. The research and development work is at initial stages worldwide at present. Electrochemistry of oxygen in non-aqueous electrolytes is one of the crucial factors. Development of a suitable catalyst for reversible oxygen electrode for long cycle-life is important. The research and development work available in the literature and also in the investigators laboratory is based on small experimental cells. Furthermore, the cells function as primary non-rechargeable cells, and attempts to recharge do not produce significant results. Hardly a few cycles are reported. In the present studies, cells are assembled with electrodes of area of about 10 sq cm and evaluated for electrochemical discharge. For achieving rechargeability, several attempts are made with different catalysts, carbons, electrolytes, etc., but a few cycles are achieved in some of the cells.

Descriptors:

• *STORAGE BATTERIES
• CYCLES
• ELECTROCHEMISTRY
• ENERGY DENSITY
• OXYGEN ELECTRODES

Subject Categories:

• Electrochemical Energy Storage

Distribution Statement:

APPROVED FOR PUBLIC RELEASE