Electrolyte supported cell designed for longer life and higher power
US-2016172702-A1 · Jun 16, 2016 · US
Electrochemical cell, electrochemical cell stack, and electrolyte for electrochemical cell
US2021296677A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021296677-A1 |
| Application number | US-202117195959-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 9, 2021 |
| Priority date | Mar 18, 2020 |
| Publication date | Sep 23, 2021 |
| Grant date | — |
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- Title
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Abstract
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An electrochemical cell includes an electrolyte arranged between a hydrogen electrode and an oxygen electrode. The electrolyte contains a ceria-based material having a fluorite crystal structure and a stabilized zirconia-based material. The electrolyte may include a first electrolyte located on a side close to the hydrogen electrode and containing the ceria-based material. The electrolyte may further include a second electrolyte located on a side close to the oxygen electrode and containing the ceria-based material. The electrolyte may further include a third electrolyte located between the first electrolyte and the second electrolyte and containing the stabilized zirconia-based material.
First claim
Opening claim text (preview).
1 . An electrochemical cell comprising an electrolyte arranged between a hydrogen electrode and an oxygen electrode, wherein the electrolyte contains a ceria-based material having a fluorite crystal structure and a stabilized zirconia-based material. 2 . The electrochemical cell of claim 1 , wherein the electrolyte includes a first electrolyte located on a side close to the hydrogen electrode and containing the ceria-based material, a second electrolyte located on a side close to the oxygen electrode and containing the ceria-based material, and a third electrolyte located between the first electrolyte and the second electrolyte and containing the stabilized zirconia-based material. 3 . The electrochemical cell of claim 2 , wherein a film thickness of each of the first electrolyte and the second electrolyte is equal to or less than ½ of a film thickness of the third electrolyte. 4 . The electrochemical cell of claim 1 , wherein the ceria-based material is doped ceria in which at least one type of oxide selected from Gd, Sm, and Y is doped, and the zirconia-based material is stabilized zirconia stabilized with at least one type of oxide selected from Y and Sc. 5 . The electrochemical cell of claim 1 , wherein the oxygen electrode contains an ABO 3 -type perovskite oxide, an element constituting an A site in the perovskite oxide is at least one type of element selected from La, Ba, Sr, and Ca, and an element constituting a B site is at least one type of element selected from Mn, Co, Fe, and Ni. 6 . The electrochemical cell of claim 1 , wherein the hydrogen electrode contains at least one type of metal selected from a group consisting of nickel, cobalt, iron, and copper. 7 . An electrochemical cell stack comprising a plurality of stacked electrochemical cells each including an electrolyte arranged between a hydrogen electrode and an oxygen electrode, wherein the electrolyte contains a ceria-based material having a fluorite crystal structure and a stabilized zirconia-based material. 8 . An electrolyte for an electrochemical cell comprising: a ceria-based material having a fluorite crystal structure; and a stabilized zirconia-based material.
Assignees
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Classifications
Fuel cells · CPC title
Fuel cells with solid oxide electrolytes · CPC title
the electrolyte containing cerium oxide · CPC title
- H01M8/1253Primary
the electrolyte containing zirconium oxide · CPC title
based on ceramics · CPC title
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- What does patent US2021296677A1 cover?
- An electrochemical cell includes an electrolyte arranged between a hydrogen electrode and an oxygen electrode. The electrolyte contains a ceria-based material having a fluorite crystal structure and a stabilized zirconia-based material. The electrolyte may include a first electrolyte located on a side close to the hydrogen electrode and containing the ceria-based material. The electrolyte may f…
- Who is the assignee on this patent?
- Toshiba Energy Systems & Solutions Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M8/1253. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 23 2021 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).