公开(公告)号：US20240030476A1

公开(公告)日：2024-01-25

申请号：US18255088

申请日：2021-11-30

申请人： KEMIWATT

发明人： Jérémy ALLIX ,  Kevin PAVEC

IPC分类号： H01M8/18 ,  H01M8/04276 ,  H01M8/0289 ,  H01M8/0444 ,  H01M8/04746 ,  H01M8/043

CPC分类号： H01M8/188 ,  H01M8/04276 ,  H01M8/0289 ,  H01M8/04477 ,  H01M8/04746 ,  H01M8/043

摘要： A system includes one or more redox flow batteries and includes a stack of several electrochemical cells. The electrochemical cells include a cathode compartment and an anode compartment. The cathode compartment is in fluidic communication, via a feed circuit, with one or more tanks of electrolyte called catholyte. The anode compartment is in fluidic communication, via a feed circuit, with one or more tanks of electrolyte called anolyte. The feed circuit of the catholyte, respectively the anolyte, includes a pump for circulating the catholyte, respectively the anolyte, from the tank to the cathode, respectively the anode compartments. The system includes a catholyte drainage pump and an anolyte drainage pump, the catholyte, respectively. The anolyte drainage pump is controlled by a catholyte, respectively anolyte presence detector, in at least a part of the feed circuit of catholyte, respectively anolyte.

公开(公告)号：US20230099857A1

公开(公告)日：2023-03-30

申请号：US17787759

申请日：2020-12-18

申请人： KEMIWATT

发明人： Thibault GODET-BAR

IPC分类号： H01M8/18 ,  C07C50/34

摘要： Disclosed is an aqueous electrolyte for redox flow battery, including a compound of formula (I) and/or an ion of compound (I), and/or a salt of compound (I), and/or a reduced form of the anthraquinone member of compound (I), wherein: X1, X2, X4, X5, X6, X7 and X8 are independently selected from the group consisting of a hydrogen atom, a linear, cyclic or branched, saturated or unsaturated, optionally substituted, hydrocarbon group including from 1 to 10 carbon atoms, a OH group and a —O-A-R1 group, A representing a linear, cyclic or branched, saturated or unsaturated, optionally substituted, hydrocarbon group including from 1 to 10 carbon atoms; R1 representing COOH or SO3H; wherein one and only one of X1, X2, X4, X5, X6, X7 and X8 is OH, and wherein one and only one of X1, X2, X4, X5, X6, X7 and X8 is —O-A-R1.

公开(公告)号：US20240297323A1

公开(公告)日：2024-09-05

申请号：US18571074

申请日：2022-06-17

申请人： KEMIWATT ,  PILI

发明人： Thibault GODET-BAR ,  Guillaume BOISSONNAT

IPC分类号： H01M8/18 ,  C07C50/34 ,  C07C59/90 ,  C07C66/02

CPC分类号： H01M8/188 ,  C07C50/34 ,  C07C59/90 ,  C07C66/02 ,  C07C2603/24 ,  H01M2300/0014

摘要： A redox flow battery includes at least one aqueous electrolyte including the fermented compound




and/or an ion, and/or a salt and/or a reduced form of the anthraquinone member of compound (I). X1-X8 are independently selected from a hydrogen atom, a halogen atom, an ether group of formula —O-A′, a linear, cyclic or branched, saturated or unsaturated, optionally substituted, hydrocarbon group including 1-10 carbon atoms, a OH group, a —R1 group and a —O-A-R1 group. A′ represents a linear, cyclic or branched, saturated or unsaturated, optionally substituted, hydrocarbon group including from 1-10 carbon atoms. A represents a linear, cyclic or branched, saturated or unsaturated, optionally substituted, hydrocarbon group including 1-10 carbon atoms. R1 represents COOH, SO3H, or a salt thereof. One to three of X1-X8 is OH. Exactly one of X1-X8 is —O-A-R1. A method for generating electricity with such compounds is also described.

公开(公告)号：US11239483B2

公开(公告)日：2022-02-01

申请号：US16556995

申请日：2019-08-30

申请人： KEMIWATT

发明人： Florent Beille

IPC分类号： H01M8/18 ,  H01M8/0258 ,  H01M8/0273 ,  H01M8/2455 ,  H01M8/026

摘要： The invention relates to a stack of several electrochemical cells stacked on top of one another in a stacking direction. The stack comprises at least: a first electrochemical cell, a second electrochemical cell, and an intercalary plate. Each cell includes an upper frame housing a first electrode and a lower frame housing a second electrode, the first electrode and the second electrode being separated from one another by a membrane. The second electrode of the first electrochemical cell and the first electrode of the second electrochemical cell are separated by an intercalary plate. The stack includes an intercalary frame arranged on the periphery of the intercalary plate.

公开(公告)号：US20200075984A1

公开(公告)日：2020-03-05

申请号：US16556995

申请日：2019-08-30

申请人： KEMIWATT

发明人： Florent BEILLE

IPC分类号： H01M8/18 ,  H01M8/0258 ,  H01M8/0273 ,  H01M8/04186

摘要： The invention relates to a stack of several electrochemical cells stacked on top of one another in a stacking direction. The stack comprises at least: a first electrochemical cell, a second electrochemical cell, and an intercalary plate. Each cell includes an upper frame housing a first electrode and a lower frame housing a second electrode, the first electrode and the second electrode being separated from one another by a membrane. The second electrode of the first electrochemical cell and the first electrode of the second electrochemical cell are separated by an intercalary plate. The stack includes an intercalary frame arranged on the periphery of the intercalary plate.

公开(公告)号：US20200075969A1

公开(公告)日：2020-03-05

申请号：US16463924

申请日：2017-11-22

申请人： KEMIWATT

发明人： Florent BEILLE ,  Jérémy ALLIX

IPC分类号： H01M8/0273 ,  H01M8/18 ,  H01M8/04186

摘要： An electrochemical cell including a frame of a porous electrochemical-cell electrode, the frame including a proximal portion close to a membrane, and a distal portion distant from the membrane; the frame includes a supply channel for supplying an electrochemical fluid and an inlet channel for a fluid supplying a lateral face of the electrode, the inlet channel including an orifice in the distal portion opening onto a lateral face of the electrode; the frame includes a discharge channel for discharging an electrochemical fluid and an outlet channel through which the fluid exits via a lateral face of the electrode, the outlet channel including an orifice in the distal portion opening onto a lateral face of the electrode; at least one of the inlet channel and outlet channel includes an orifice opening onto a supply channel or discharge channel in the proximal portion of the frame.