Nasa S Technology Transfer Program Solicits Inquiries From Companies Interested In Obtaining License Rights To Commercialize Manufacture And Market The Following Technology License Rights May Be Issued On An Exclusive Or Nonexclusive Basis And May Include Specific Fields Of Use Nasa Provides No Funding In Conjunction With These Potential Licenses The Technology A Battery Charge Equalizer Developed At Nasa s Johnson Space Center Provides Individual Cell Charging In Multi Cell Battery Strings Using A Minimum Number Of Transformers By Effectively Keeping All The Cells In A Multi Cell String At The Same Charge State This Technology Maximizes The Battery s Life And Performance Designed To Augment A Simple High Current Charger That Supplies Overall Battery System Energy The Innovation Achieves Equalization Without Wasting Energy Or Creating Excess Heat Nasa s Battery Charge Equalizer Complements Existing High Voltage Chargers And Instrumentation Systems And Offers Safe And Low Cost Management For Lithium Ion Li Ion Batteries Used In Electric Vehicles And Other Next Generation Renewable Energy Applications This Nasa Technology Is Available For Your Company To License And Develop Into A Commercial Product Nasa Does Not Manufacture Products For Commercial Sale The Innovation Consists Of A Transformer Array Connected To A Battery Array Through Rectification And Filtering Circuits The Transformer Array Is Connected To A Drive Circuit And A Timing And Control Circuit Which Enables Individual Battery Cells Or Cell Banks To Be Charged The Timing And Control Circuit Connects To A Charge Controller That Uses Battery Instrumentation To Determine Which Battery Bank To Charge The System Is Ultra Lightweight Because It Uses Much Fewer Than One Transformer Per Battery Cell For Instance 40 Battery Cells Can Be Balanced With An Array Of Just Five Transformers The Innovation Can Charge An Individual Cell Bank At The Same Time While The Main Battery Charger Is Charging The High Voltage Battery System Conventional Equalization Techniques Require Complex And Costly Electrical Circuitry To Achieve Cell Monitoring And Balancing Further Such Techniques Waste The Energy From The Most Charged Cells Through A Dummy Resistive Load Regulator Which Is Inefficient And Generates Excess Heat In Contrast This System Equalizes Battery Strings By Selectively Charging Cells That Need It The Technology Maintains Battery State Of Charge To Improve Battery Life And Performance In Addition The Technology Provides A Fail Safe Operation And A Novel Built In Electrical Isolation For The Main Charge Circuit Further Improving The Safety Of High Voltage Li Ion Batteries To Express Interest In This Opportunity Please Submit A License Application Through Nasa S Automated Technology Licensing Application System Atlas By Visiting Https Technology Nasa Gov Patent Msc Tops 35 If You Have Any Questions Please Contact Nasa Johnson Space Center S Technology Transfer Office At Jsc Techtran Mail Nasa Gov With The Title Of This Technology Transfer Opportunity As Listed In This Fbo Notice And Your Preferred Contact Information For More Information About Licensing Other Nasa Developed Technologies Please Visit The Nasa Technology Transfer Portal At Https Technology Nasa Gov These Responses Are Provided To Members Of Nasa S Technology Transfer Program For The Purpose Of Promoting Public Awareness Of Nasa Developed Technology Products And Conducting Preliminary Market Research To Determine Public Interest In And Potential For Future Licensing Opportunities No Follow On Procurement Is Expected To Result From Responses To This Notice
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