Electrochemical battery incorporating internal manifolds
View Patent ↗An electrochemical battery includes a plurality of cells, each cell including negative and positive compartments to contain electrolyte solution. A manifold includes an outer manifold plate coupled to an inner manifold plate to supply and return electrolyte solution to the compartments. Each manifold plate includes supply shunt passages to convey electrolyte solution to the cells and return shunt passages to receive electrolyte solution from the cells.
1. An electrochemical battery, comprising: a plurality of cells, each cell including negative and positive compartments to hold electrolyte solution; and
a manifold plate, comprising,
an outer side, comprising,
supply shunt passages to convey electrolyte solution to the plurality of cells, and
return shunt passages to receive electrolyte solution from the plurality of cells; and
an inner side, comprising,
supply shunt passages to convey electrolyte solution to the plurality of cells, and
return shunt passages to receive electrolyte solution from the plurality of cells,
wherein the supply and return shunt passages of the outer and inner sides are configured to form serpentine paths.
2. The electrochemical battery of claim 1 , wherein the supply shunt passages of the outer and inner sides are configured to form parallel paths and the return shunt passages of the outer and inner sides are configured to form parallel paths.
3. The electrochemical battery of claim 1 , wherein the outer side comprises:
an input well in communication with the supply shunt passages; and
an output well in communication with the return shunt passages.
4. The electrochemical battery of claim 3 , wherein the manifold plate comprises:
an input aperture extending through the manifold plate to enable communication between the outer and inner sides; and
an output aperture extending through the manifold plate to enable communication with the outer and inner sides.
5. The electrochemical battery of claim 4 , wherein the inner side comprises:
an input well in communication with the supply shunt passages of the inner side and the input aperture; and
an output well in communication with the return shunt passages of the inner side and the output aperture.
6. The electrochemical battery of claim 1 , wherein the manifold plate comprises:
outer supply apertures extending through the manifold plate, each outer supply aperture in communication with a corresponding supply shunt passage of the outer side; and
outer return apertures extending through the manifold plate, each outer return aperture in communication with a corresponding return shunt passage of the outer side.
7. The electrochemical battery of claim 6 , wherein the inner side comprises:
supply channels, each supply channel in communication with a corresponding outer supply aperture; and
return channels, each return channel in communication with a corresponding outer return aperture.
8. The electrochemical battery of claim 1 , wherein the manifold plate comprises:
inner supply apertures extending through the manifold plate, each inner supply aperture in communication with a corresponding supply shunt passage of the inner side; and
inner return apertures extending through the manifold plate, each inner return aperture in communication with a corresponding return shunt passage of the inner side.
9. The electrochemical battery of claim 8 , wherein the outer side further comprises:
supply channels, each supply channel in communication with a corresponding inner supply aperture; and
return channels, each return channel in communication with a corresponding inner return aperture.
10. The electrochemical battery of claim 9 , wherein the manifold plate further comprises:
second inner supply apertures, each second inner supply aperture in communication with a corresponding supply channel; and
second inner return apertures, each second inner return aperture in communication with a corresponding return channel.
11. The electrochemical battery of claim 1 , further comprising:
a first sub-stack comprising a plurality of cells, wherein each cell includes a cell frame, each cell frame including,
a first positive supply channel aperture in communication with the manifold plate,
a first positive return channel aperture in communication with the manifold plate,
a first negative supply channel aperture in communication with the manifold plate,
a first negative return channel aperture in communication with the manifold plate,
a second positive supply channel aperture in communication with the manifold plate,
a second positive return channel aperture in communication with the manifold plate,
a second negative supply channel in communication with the manifold plate,
a second negative return channel in communication with the manifold plate,
a second sub-stack comprising a plurality of cells, wherein each cell includes a cell frame, each cell frame including,
a positive supply channel aperture in communication with the manifold plate and the second positive supply channel apertures of the first sub-stack,
a positive return channel aperture in communication with the manifold plate and the second positive return channel apertures of the first sub-stack,
a negative supply channel aperture in communication with the manifold plate and the second negative supply channel apertures of the first sub-stack, and
a negative return channel aperture in communication with the manifold plate and the second negative return channel apertures of the first sub-stack.
12. The electrochemical battery of claim 1 , further comprising:
a first sub-stack comprising,
a plurality of cells,
a first positive supply channel to convey electrolyte solution to the cells of the first sub-stack,
a first negative supply channel to convey electrolyte solution to the cells of the first sub-stack,
a first positive return channel to return electrolyte solution from the cells of the first sub-stack,
a first negative return channel to return electrolyte solution from the cells of the first sub-stack,
a second positive supply channel,
a second negative supply channel,
a second positive return channel,
a second negative return channel; and
a second sub-stack comprising,
a plurality of cells,
a positive supply channel in communication with the second positive supply channel of the first sub-stack,
a negative supply channel in communication with the second negative supply channel of the second sub-stack,
a positive return channel in communication with the second positive return channel of the first sub-stack, and
a negative return channel in communication with the second negative return channel of the first sub-stack.
13. A manifold plate for use in an electrochemical battery, the manifold plate comprising
an outer side, comprising,
supply shunt passages to convey electrolyte solution,
return shunt passages to receive electrolyte solution,
an input aperture to pass electrolyte solution, and
an output aperture to pass electrolyte solution; and
an inner side, comprising,
supply shunt passages in communication with the input aperture to convey electrolyte solution, and
return shunt passages in communication with the output aperture to receive electrolyte solution;
wherein the supply and return shunt passages of the outer and inner sides are configured to form serpentine paths.
14. The manifold plate of claim 13 ,
wherein the supply shunt passages of the outer and inner sides are configured to form parallel paths, and
wherein the return shunt passages of the outer and inner sides are configured to form parallel paths.
15. The manifold plate of claim 13 , wherein the outer side comprises:
an input well in communication with the supply shunt passages; and
an output well in communication with the return shunt passages.
16. The manifold plate of claim 13 , wherein the inner side comprises:
an input well in communication with the supply shunt passages and the input aperture; and
an output well in communication with the return shunt passages and the output aperture.
17. The manifold plate of claim 13 , further comprising:
outer supply apertures extending through the manifold plate, each outer supply aperture in communication with a corresponding supply shunt passage of the outer side; and
outer return apertures extending through the manifold plate, each outer return aperture in communication with a corresponding return shunt passage of the outer side.
18. The manifold plate of claim 17 , wherein the inner side comprises:
supply channels, each supply channel in communication with a corresponding outer supply aperture; and
return channels, each return channel in communication with a corresponding outer return aperture.
19. The manifold plate of claim 13 , further comprising:
inner supply apertures extending through the manifold plate, each inner supply aperture in communication with a corresponding supply shunt passage of the inner side; and
inner return apertures extending through the manifold plate, each inner return aperture in communication with a corresponding return shunt passage of the inner side.
20. The manifold plate of claim 19 , wherein the outer side further comprises:
supply channels, each supply channel in communication with a corresponding inner supply aperture; and
return channels, each return channel in communication with a corresponding inner return aperture.
21. The manifold plate of claim 20 , wherein the manifold plate further comprises:
second inner supply apertures, each second inner supply aperture in communication with a corresponding supply channel; and
second inner return apertures, each second inner return aperture in communication with a corresponding return channel.