Fuel cell system
US-2018205097-A1 · Jul 19, 2018 · US
Fuel Cell Freeze Protection Device and System
US2018219237A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018219237-A1 |
| Application number | US-201715417800-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 27, 2017 |
| Priority date | Jan 27, 2017 |
| Publication date | Aug 2, 2018 |
| Grant date | — |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A fuel cell system including a fuel cell stack, a coolant loop and a thermal battery. The coolant loop is configured to flow a coolant liquid therethrough. The thermal battery includes a phase change material configured to absorb heat generated by the fuel cell stack or coolant liquid and to latently store the heat during a first mode of operation the fuel cell system.
First claim
Opening claim text (preview).
1 . A fuel cell system comprising: a fuel cell stack; a coolant loop configured to flow a coolant liquid therethrough; and a thermal battery including a phase change material configured to absorb heat generated by the fuel cell stack or coolant liquid and to latently store the heat during a first mode of operation of the fuel cell system. 2 . The fuel cell system of claim 1 , wherein the phase change material is further configured to at least partially change phase from solid to liquid during the first mode of operation. 3 . The fuel cell system of claim 1 , wherein the phase change material is further configured to release latent heat into the fuel cell stack or coolant loop during a second mode of operation of the fuel cell system. 4 . The fuel cell system of claim 3 , wherein the phase change material is further configured to at least partially change phase from liquid to solid during the second mode of operation of the fuel cell system. 5 . The fuel cell system of claim 1 , wherein the first mode of operation is a normal operating mode of the fuel cell system. 6 . The fuel cell system of claim 3 , wherein the second mode of operation is a startup of the fuel cell system at low temperature ambient conditions of 0° C. or lower. 7 . The fuel cell system of claim 5 , wherein the fuel cell stack or coolant liquid is configured to release heat to the thermal battery during the first mode of operation. 8 . The fuel cell system of claim 6 , wherein the fuel cell stack or coolant liquid is configured to absorb heat from the thermal battery during the second mode of operation. 9 . (canceled) 10 . The fuel cell system of claim 1 , wherein the thermal battery includes an insulating layer to at least partially enclose the thermal battery. 11 - 20 . (canceled) 21 . A fuel cell system comprising: a fuel cell stack; a coolant loop configured to flow a coolant liquid therethrough; and a thermal battery including a phase change material configured to absorb heat generated by the fuel cell stack or coolant liquid, to latently store the heat during a first mode of operation of the fuel cell system, and to latently heat a volume external to the fuel cell system. 22 . The fuel cell system of claim 21 , wherein the phase change material is further configured to at least partially change phase from solid to liquid during the first mode of operation. 23 . The fuel cell system of claim 21 , wherein the phase change material is further configured to release latent heat into the fuel cell stack or coolant loop during a second mode of operation of the fuel cell system. 24 . The fuel cell system of claim 23 , wherein the phase change material is further configured to at least partially change phase from liquid to solid during the second mode of operation of the fuel cell system. 25 . The fuel cell system of claim 21 , wherein the first mode of operation is a normal operating mode of the fuel cell system. 26 . A fuel cell system comprising: a fuel cell stack; a coolant loop configured to flow a coolant liquid therethrough; a thermal battery including a phase change material configured to absorb heat generated by the fuel cell stack or coolant liquid, to latently store the heat during a first mode of operation of the fuel cell system, and to latently heat a volume external to the fuel cell system; and a fuel cell stack loop including the fuel cell stack and the thermal battery. 27 . The fuel cell system of claim 26 , wherein the phase change material is further configured to at least partially change phase from solid to liquid during the first mode of operation. 28 . The fuel cell system of claim 26 , wherein the phase change material is further configured to release latent heat into the fuel cell stack or coolant loop during a second mode of operation of the fuel cell system. 29 . The fuel cell system of claim 28 , wherein the phase change material is further configured to at least partially change phase from liquid to solid during the second mode of operation of the fuel cell system. 30 . The fuel cell system of claim 26 , wherein the first mode of operation is a normal operating mode of the fuel cell system. 31 . The fuel cell system of claim 28 , wherein the second mode of operation is a startup of the fuel cell system at low temperature ambient conditions of 0° C. or lower.
Assignees
Inventors
Classifications
of the coolant · CPC title
of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers · CPC title
Storage of heat in the fuel cell system · CPC title
applied during start-up · CPC title
Heat exchange using liquids · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2018219237A1 cover?
- A fuel cell system including a fuel cell stack, a coolant loop and a thermal battery. The coolant loop is configured to flow a coolant liquid therethrough. The thermal battery includes a phase change material configured to absorb heat generated by the fuel cell stack or coolant liquid and to latently store the heat during a first mode of operation the fuel cell system.
- Who is the assignee on this patent?
- Ford Motor Co
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04253. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 02 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).