Proposal Number:          21-1- S3.03-3308

          

          

   

Subtopic Title:
      Energy Storage for Extreme Environments

          

          

   

Proposal Title:
      High Temperature All Solid-State LiAl-CO2 Batteries for Venus Missions

          

          

   

Firm:

          

Talos Tech, LLC

          

   

Address:

          

274 Quigley Boulevard, New Castle, DE 19720

          

   

Phone:

          

(302) 332-9236                                                                                                                                                                                

          

   

Name:

          

Hansan Liu

          

   

E-mail:

          

hansan.liu@talostechllc.com

          

   

Address:

          

274 Quigley Blvd, DE 19720 - 2513

          

   

Phone:

          

(302) 332-9236                                                                                                                                                                                

          

   

Name:

          

Hansan Liu

          

   

E-mail:

          

hansan.liu@talostechllc.com

          

   

Address:

          

274 Quigley Blvd, DE 19720 - 2513

          

   

Phone:

          

(302) 332-9236                                                                                                                                                                                

          

   

Estimated Technology Readiness Level (TRL) :                                                                                                                                                          
Begin: 2
End: 4

          

          

     

Technical Abstract (Limit 2000 characters, approximately 200 words):

The planet Venus is an interesting target for scientific exploration. However, long-duration missions to the surface of Venus present a significant challenge to the power system due to its ambient temperature (390 to 485^oC) and high average surface pressure of carbon dioxide (92 bar). Therefore, conventional power technologies including photovoltaic power systems and the conventional batteries could not meet the requirement for Venus surface application. TalosTech LLC and University of Delaware propose to develop a high temperature all solid-state LiAl-CO₂ battery with superior specific energy by using a high performance cathode, an innovative tri-layer solid state electrolyte framework, LiAl metal anode, and ambient carbon dioxide at Venus surface as a reactant. During Phase I, the team will demonstrate the feasibility of the high temperature all-solid-state LiAl-CO₂ battery with superior specific energy (948 Wh/kg). The successful development of this technology will provide a high energy battery operating 100-600^oC, which can be operated on the Venus surface for more than 60 days.

          

          

     

Potential NASA Applications (Limit 1500 characters, approximately 150 words):

Because of the benefits of the proposed battery system in terms of superior high energy, low cost, simple system, high stability, long life, wide operation temperature, and low self-discharging rate, it can be used on the Venus surface for both short and long durations. This low-cost and simple system also can be used for other planetary exploration missions where there is enough CO₂ in ambient atmosphere.

          

          

     

Potential Non-NASA Applications (Limit 1500 characters, approximately 150 words):

This proposed LiAl-CO₂ battery system can efficiently convert CO₂ into solid carbon or CO with generating electricity efficiently. The LiAl-CO₂ primary battery can be redesigned to Na/K-CO₂ battery which could provide 1) a cost-effective and eco-friendly CO₂ fixation strategy 2) high efficiency renewable energy storage method. 

          

          

     

Duration:     6