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A flow battery, or redox flow battery, is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids contained within the system and separated by a membrane. A flow battery may be used like a rechargeable battery, where an electric power source drives regeneration of the fuel. Advantages over conventional rechargeables includes separable liquid tanks and near unlimited longevity. Current disadvantages are comparatively less power and a need for more sophisticated electronics. Flow batteries are normally considered for relatively large (1 kWh – 10 MWh) stationary applications, including: load balancing, storing energy from renewable sources, peak shaving, UPS, power conversion, electric vehicles and stand-alone power system.


Top 10 Corporate Owners


 
Issued Patent Count   
 
Published Pending Application Count

Corporation Patents and Published Applications Count
1. Sumitomo Corporation
 
 
127
2. Lockheed Martin
 
 
98
3. US Department of Energy
 
 
78
4. Imergy Power Systems, Inc.
 
 
47
5. United Technologies
 
 
41
6. Lg Chem Ltd.
 
 
37
7. Samsung Electronics., Ltd.
 
 
33
8. Primus Power Corporation
 
 
29
9. Vrb Energy Inc.
 
 
28
10. Unienergy Technologies, Llc
 
 
27




Category and Tag Distribution

Category and Tags Patents and Published Applications
  • Methods
  •  
    126
    65 Synthesis, 61 Operating
  • Physical
  •  
    446
    100 Stack Configuration, 96 Control system, 91 Circulation, 83 Cell Configuration, 37 Leaks, 35 Bipolar plate, 4 Storage
  • Primary Chemistry
  •  
    717
    151 Membrane, 131 Inorganic, 131 Electrode, 102 Electrolyte Balance, 96 Organic, 68 Coordination compounds, 38 Semi-solid
  • Secondary Chemistry
  •  
    148
    115 Mediators, 33 Current


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    September 11, 2019






    Recent Published Activity in Energy Storage: Flow Batteries as of November 20, 2019