SBIR-STTR Award

Windable Lithium-ion Conducting Ceramic Electrolytes
Award last edited on: 5/8/2019

Sponsored Program
STTR
Awarding Agency
DOD : Army
Total Award Amount
$872,997
Award Phase
2
Solicitation Topic Code
A09A-T011
Principal Investigator
Yuhong Huang

Company Information

Chemat Technology Inc (AKA: Chemat Group)

9036 Winnetka Avenue
Northridge, CA 91324
   (818) 727-9786
   info@chemat.com
   www.chemat.com

Research Institution

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Phase I

Contract Number: ----------
Start Date: ----    Completed: ----
Phase I year
2009
Phase I Amount
$123,000
Lithium-air battery consists of a lithium anode electrochemically coupled to atmospheric oxygen through an air cathode. The major advantages of lithium air batteries are that air cathode active material, oxygen, is not stored internal to cell system and lithium anode being extremely lightweight metal with a highest theoretical specific energy density. This energy density is well comparable with that of gasoline device. This energy density is 10 times higher than the highest energy density for presently available commercial lithium-ion batteries. In addition to these advantages, the lithium air batteries can offer a flat discharge voltage profile, environmental friendliness, and long storage life. Lithium air battery can also be fabricated either in chargeable or non-chargeable modes. These features identify the lithium air batteries as the potential power sources for the portable electronic devices, electric vehicles, and defense applications. In this proposed research, we plan to develop windable electrolyte membrane starting from nanosized LiM2(PO4)3 type powder. Testing cell of lithium-air battery will be constructed and characterized in Phase I.

Keywords:
Li/Air Battery, Lithium Ion Conducting Electrolyte, Ceramic Electrolyte, Membrane, Flexible

Phase II

Contract Number: ----------
Start Date: ----    Completed: ----
Phase II year
2011
Phase II Amount
$749,997
Interest in lithium metal-air batteries has been growing in recent years, along with the demand for lighter power sources for devices ranging from plug-in hybrid vehicles to laptops. In lithium-ion batteries, the electrodes are made of materials such as graphite, while in a lithium-metal battery, the anode is made up entirely of lithium metal, and the surrounding air can act as the cathode. Lithium-metal batteries approach the energy density of fuel cells without the plumbing needed for these devices; in theory, the maximum energy density is more than 5,000 watt-hours per kilogram, or more than 10 times that of today''s lithium-ion batteries. Lithium metal-air batteries are also very lightweight because it''s not necessary to carry a second reactant. Highly ionic conductive windable electrolyte will be incorporated into lithium air battery and battery park in Phase II. The battery-relevant electrochemical characteristics of the lithium-air system will be tested. The chemical and electrochemical stability of the battery as a function of temperature and discharge rate will be assessed.

Keywords:
Li/Air Battery, Lithium Ion Conducting Electrolyte, Ceramic Electrolyte, Sol-Gel