Method of operating a regenerative bipolar membrane fuel cell and a regenerative bipolar membrane fuel cell therefor
A fuel cell, bipolar membrane technology, applied in the field of renewable bipolar membrane fuel cells, can solve problems such as the inability of batteries to provide sustainable energy storage, achieve safe and more cost-effective energy storage and regeneration, prevent swelling and reduced risk of delamination, swelling, or delamination
Active Publication Date: 2020-11-20
AQUABATTERY BV
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Problems solved by technology
[0002] Conventional energy storage devices include batteries, which cannot provide sustainable energy storage in the long run due to declining reserves of many important elements needed for battery production
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[0068] Regenerative bipolar membrane fuel cells 2 ( figure 1 ) includes the first electrode 4 and the second electrode 6 in the first electrode chamber 8 and the second electrode chamber 10, respectively. It should be understood that other numbers and configurations of electrodes are also contemplated in accordance with the present invention. Between the electrodes 4, 6 are arranged several membranes separating the electrode chambers 8, 10. In the illustrated embodiment, two battery cells 12 are provided. A cation exchange membrane 20 is arranged between the second battery cell 12 and the first electrode 4 .
[0069]Each battery cell 12 includes an anion exchange membrane 22 and a cation exchange membrane 24 separated by the bipolar membrane 26 . The battery cell 12 defines three chambers 28 , 30 , 32 . In use, the first chamber 28 is supplied with a saline solution, such as 0.5 mol / l NaCl. In use, the second chamber 30 is provided with an acid solution, such as 0.5 mol / l...
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Abstract
The present invention relates to a method of operating a regenerative bipolar membrane fuel cell, and a regenerative bipolar membrane cell for storing and generating energy. The method according to the invention comprises the steps of: - providing a regenerative bipolar membrane fuel cell comprising: - a reactor having an anode compartment and a cathode compartment, the anode compartment having an anode, the cathode compartment having a cathode; and - a number of battery cells separating the anode compartment and the cathode compartment, wherein the battery cells include an anion exchange membrane, a cation exchange membrane, and a bipolar membrane, the membranes delimiting the compartments; - providing a fluid on both sides of the bipolar membrane with an ion concentration such that the difference in water activity of the fluid on both sides of the bipolar membrane is minimized; - stored in an energy storage state by supplying an external current to the reactor energy to achieve a pH difference between the fluids in contact with the bipolar membrane; -switching between an energy storage state and an energy production state; and -from the pH difference between the fluids in contact with the bipolar membrane in Regenerates energy while in an energy generating state.
Description
technical field [0001] The present invention relates to a method of operating a regenerative bipolar membrane fuel cell capable of storing and generating energy. This enables storage of energy during periods of excess energy and use of this energy during periods of energy deficit. Temporary storage of energy is important for matching energy supply and demand as well as for peak adjustment of energy demand. For example, this enables the storage of energy from supplies such as solar, wind and hydro. Background technique [0002] Conventional energy storage devices include batteries, which cannot provide sustainable energy storage in the long run due to declining reserves of many important elements needed for battery production. [0003] Conventional energy generation methods may involve the use of electrolyte differences for a reverse electrodialysis process (RED), as described in WO2007 / 094659. For example, this difference is reflected between sea water and river water. T...
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IPC IPC(8): H01M8/04746H01M8/18H01M8/22H01M8/2455
CPCH01M8/04746H01M8/188H01M8/227H01M8/2455Y02E60/50Y02B90/10H01M8/186H01M2250/10
Inventor 迈歇尔·萨克斯胡贝图斯·维克托·玛丽·哈梅利尔斯威廉·约翰内斯·凡·埃格蒙德
Owner AQUABATTERY BV