Modified solid oxide fuel cell

Patent metadata

Field	Value
Publication number	US-2016329576-A1
Application number	US-201615096901-A
Country	US
Kind code	A1
Filing date	Apr 12, 2016
Priority date	Apr 22, 2015
Publication date	Nov 10, 2016
Grant date	—

Abstract

A solid oxide fuel cell comprising a cathode, an electrolyte, a functional layer and an anode support. The anode support comprises A-B-C: A is a nitrate, an oxide, a salt or a carbonate selected from the group of: alkali, alkaline oxide, alkaline earth metal or combinations thereof, B is selected from the group of: Fe, Ni, Cu, Co or combinations thereof, and C is selected from the group of: PSZ, YSZ, SSZ, SDC, Ce doped SSZ, GDC or combinations thereof. In the solid oxide fuel cell A ranges from about 0 to about 20 wt % of the anode support, B ranges from about 0.1 to about 70 wt % of the anode support and C ranges from about 0.1 to about 60 wt % of the anode support.

First claim

1 . A solid oxide fuel cell, comprising:
a cathode; an electrolyte; a functional layer and; an anode support comprising A-B-C: A is a nitrate, an oxide, a salt or a carbonate selected from the group of: alkali, alkaline earth metal or combinations thereof, B is selected from the group of: Fe, Ni, Cu, Co or combinations thereof, and C is selected from the group of: PSZ, YSZ, SSZ, SDC, Ce doped SSZ, GDC or combinations thereof, wherein A ranges from about 0 to about 20 wt %, B ranges from about 0.1 to about 70 wt % and C ranges from about 0.1 to about 60 wt % of the anode support.

2 . The solid oxide fuel cell of claim 1 , wherein A is selected from the group of: BaCO 3 , CaCO 3 , SrCO 3 , Li 2 CO 3 , K 2 CO 3 , BaO, CaO, SrO, Na 2 CO 3 , Ba(NO 3 ) 2 , Ca(NO 3 ) 2 , Sr(NO 3 ) 2 , LiNO 3 , NaNO 3 , KNO 3 , MgO, Mg(NO 3 ) 2 , or combinations thereof.

3 . The solid oxide fuel cell of claim 1 , wherein A is between 0.05 to 15 wt % of the anode support.

4 . The solid oxide fuel cell of claim 1 , wherein B is between 15 to 65 wt % of the anode support.

5 . The solid oxide fuel cell of claim 1 , wherein C is between 20 to 55 wt % of the anode support.

6 . The solid oxide fuel cell of claim 1 , wherein the functional layer is an anode functional layer.

7 . The solid oxide fuel cell of claim 1 , wherein the functional layer comprising D-E: D is selected from the group of: Fe, Ni, Cu, Co or combinations thereof, and E is selected from the group of: PSZ, YSZ, SSZ, SDC, Ce doped SSZ, GDC or combinations thereof

8 . The solid oxide fuel cell of claim 7 , wherein D and B are identical.

9 . The solid oxide fuel cell of claim 7 , wherein E and C are identical.

10 . The solid oxide fuel cell of claim 7 , wherein E and C are different.

11 . The solid oxide fuel cell of claim 1 , wherein A is impregnated upon the anode support using liquid or gas phase impregnation.

12 . The solid oxide fuel cell of claim 1 , wherein the cathode has been modified with a promoter using liquid or gas phase infiltration.

13 . The solid oxide fuel cell of claim 12 , wherein the cathode is infiltrated with a promoter selected from the group consisting of: Pr, Nd, Cu, Mn, Sr, Ce, Fe, Co, La, Sm, Ni, Gd, Ca, Ba, Bi, Ga, Mg, Pt, Ag, Ru or combinations thereof

14 . The solid oxide fuel cell of claim 13 , wherein the promoter is an oxide, hydroxide, carbonate, metal organic, organometallic, or combinations thereof.

15 . The solid oxide fuel cell of claim 12 , wherein the cathode is infiltrated with a promoter selected from the group consisting of: Pr—Ni—Fe, Nd—La—Mn—Ni, Pr—Mn—Ni, Pr—Ba—Co—Fe, Pr—Ni, gadolinium doped ceria or combinations thereof.

16 . A solid oxide fuel cell, comprising:
a cathode modified with a promoter using liquid or gas phase infiltration; an electrolyte; an anode functional layer comprising D-E: D is selected from the group of: Fe, Ni, Cu, Co or combinations thereof, and E is selected from the group of: PSZ, YSZ, SSZ, SDC, Ce doped SSZ, GDC or combinations thereof, an anode support comprising A-B-C: A is an oxide, nitrate, salt or a carbonate selected from the group of: alkali, alkaline earth metal or combinations thereof, B is selected from the group of: Fe, Ni, Cu, Co or combinations thereof, and C is selected from the group of: PSZ, YSZ, SSZ, SDC, Ce doped SSZ, GDC or combinations thereof, wherein A ranges from about 0 to about 20 wt %, B ranges from about 0 to about 70 wt % and C ranges from about 0.1 to about 60 wt % of the anode support.

17 . The solid oxide fuel cell of claim 16 , wherein the cathode is infiltrated with a promoter selected from the group consisting of: Pr, Nd, Cu, Mn, Sr, Ce, Fe, Co, La, Sm, Ni, Gd, Ca, Ba, Bi, Ga, Mg, Pt, Ag, Ru or combinations thereof

18 . The solid oxide fuel cell of claim 16 , wherein the cathode is infiltrated with a promoter selected from the group consisting of: Pr—Ni—Fe, Nd—La—Mn—Ni, Pr—Mn—Ni, Pr—Ba—Co—Fe, Pr—Ni, gadolinium doped ceria or combinations thereof.

19 . The solid oxide fuel cell of claim 16 , wherein promoter is an oxide, hydroxide, carbonate, metal organic or combinations thereof

20 . A solid oxide fuel cell, comprising:
a cathode modified with a promoter using liquid or gas phase infiltration; an electrolyte; an anode functional layer comprising D-E: D is selected from the group of: Fe, Ni, Cu, Co or combinations thereof, and E is selected from the group of: PSZ, YSZ, SSZ, SDC, Ce doped SSZ, GDC or combinations thereof, an anode support comprising A-B-C: A is a nitrate, oxide, salt, or carbonate selected from the group of: alkali, alkaline earth metal or combinations thereof, B is selected from the group of: Fe, Ni, Cu, Co or combinations thereof, and C is selected from the group of: PSZ, YSZ, SSZ, SDC, Ce doped SSZ, GDC or combinations thereof, wherein A ranges from about 0.05 to about 20 wt %, B ranges from about 0.1 to about 70 wt % and C ranges from about 0.1 to about 60 wt % of the anode support; and wherein A is impregnated upon the anode support using liquid or gas phase impregnation.

Assignees

• Phillips 66 Co

Inventors

• Liu Mingfei
• He Ting
• Liu Ying
• Bierschenk David M
• Keane Michael

Classifications

• H01M8/126

  the electrolyte containing cerium oxide · CPC title

• H01M4/8605

  Porous electrodes · CPC title

• H01M2008/1293

  Fuel cells with solid oxide electrolytes · CPC title

• H01M4/8803

  Supports for the deposition of the catalytic active composition (H01M4/90 takes precedence) · CPC title

• H01M8/0243 Primary

  in the form of mixtures · CPC title