Separator plate for an electrochemical system

Patent metadata

Field	Value
Publication number	US-2018241049-A1
Application number	US-201615752634-A
Country	US
Kind code	A1
Filing date	Aug 9, 2016
Priority date	Aug 14, 2015
Publication date	Aug 23, 2018
Grant date	—

Abstract

A separator plate for an electrochemical system is described. The separator plate may have a first individual plate and a second individual plate which is connected to the first individual plate. The first individual plate may have two first channels for leading media, the first channels running next to one another, being shaped in the first individual plate and being separated from one another at least in sections by a web which is formed between the first channels. The second individual plate may have a second channel which is for leading media and is shaped in the second individual plate. The web which is formed between the first channels and the second channel which is shaped in the second individual plate are designed and arranged in a manner such that a projection of the second channel onto the first individual plate perpendicularly to the planar surface plane of the first individual plate crosses the web along a crossing region of the web.

First claim

1 - 18 . (canceled)

19 . A separator plate for an electrochemical system, said separator plate comprising a first individual plate and a second individual plate which is connected to the first individual plate;
wherein the first individual plate comprises two first channels for leading media, said first channels running next to one another, being shaped in the first individual plate and being separated from one another at least in sections by a web which is formed between the first channels; wherein the second individual plate comprises a second channel for leading media, said second channel being shaped in the second individual plate; and wherein the web which is formed between the first channels and the second channel which is shaped in the second individual plate are designed and arranged in a manner such that a projection of the second channel onto the first individual plate perpendicularly to the planar surface plane of the first individual plate crosses the web along a crossing region of the web; wherein the web is sunk in the crossing region of the web, so that the first channels which run on both sides of the web are in fluid connection via the depression of the web, and that a rear side of the base of the depression, said rear side facing the second individual plate, is materially connected to a rear side of the base of the second channel, said rear side facing the first individual plate.

20 . The separator plate according to claim 19 , wherein a multitude of first channels which run next to one another and which are for leading media is shaped in the first individual plate, wherein adjacent channels of the multitude of the first channels are separated at least in sections by a web and that a multitude of second channels which run next to one another and which are for leading media is shaped in the second individual plate, wherein the first channels, the webs of the first individual plate and the second channels are designed and arranged in a manner such that projections of the second channels onto the first individual plate perpendicularly to the planar surface plane of the first individual plate cross the webs of the first individual plate along one or more crossing regions of the webs, wherein the webs of the first individual plate are sunk in the crossing regions or at least in some of the crossing regions, so that the first channels which run on both sides of the respective web of the first individual plate are in fluid connection via the depression of this web, and that a rear side of the base of the respective depression, said rear side facing the second individual plate, is materially connected to a rear side of the base of the second channel, said rear side facing the first individual plate and said second channel crossing the web of the first individual plate.

21 . The separator plate according to claim 20 , wherein adjacent channels of the multitude of the second channels are likewise separated by a web and that these webs of the second individual plate and the first channels are designed and arranged in a manner such that projections of the first channels onto the second individual plate perpendicularly to the planar surface plane of the second individual plate cross the webs of the second individual plate along one or more crossing regions of the webs, wherein the webs of the second individual plate are sunk in the crossing regions or at least in some of the crossing regions, so that the second channels which run on both sides of the respective web are in fluid connection via the depression of this web, and that a rear side of the base of the respective depression, said rear side facing the first individual plate, is materially connected to a rear side of the base of the first channel, said rear side facing the second individual plate and said first channel crossing the web of the second individual plate.

22 . The separator plate according to claim 20 , wherein a multitude of depressions with material-fit connections is formed in the same web.

23 . The separator plate according to claim 22 , wherein a projection of one or more of the first or the second channels onto the respective other individual plate perpendicularly to the planar surface plane of this individual plate crosses two or more adjacent webs and channels, wherein depressions with material-fit connections are formed in the crossing regions of the two or more adjacent webs, said crossing regions being defined by the same channel.

24 . The separator plate according to claim 19 , wherein the first channels and/or the second channels at least in sections run in a straight lined manner.

25 . The separator plate according to claim 19 , wherein the first channels and/or the second channels run in a fanned manner at least in sections.

26 . The separator plate according to claim 19 , wherein the first channels and/or the second channels at least in sections run in an arcuate manner.

27 . The separator plate according to claim 22 , wherein the individual plates are metal plates and that the material-fit connection is a welding connection.

28 . The separator plate according to claim 19 , wherein a thickness of the individual plates which is defined perpendicularly to the planar surface plane of the individual plates is between 50 μm and 150 μm.

29 . The separator plate according to claim 19 , wherein the channels and the webs are embossed into the individual plates.

30 . The separator plate according to claim 22 , wherein the material-fit connection at the rear side of the base of the depression of the web of an individual plate extends at an angle of −25° to +25° relative to the main direction of extension of the channel of the other individual plate.

31 . The separator plate according to claim 30 , wherein the material-fit connection at the rear side of the base of the depression of an individual plate extends continuously or in sections over a length which corresponds to at least double the width of the material-fit connection.

32 . The separator plate according to claim 19 , wherein the base of the depression of the web is each continuously sunk as far as the bases of the channels, said channels being adjacent to the web, so that the rear side of the base of the depression and the rear side of the channels bases, said channel bases connecting to the depression, lie in one plane.

33 . The separator plate according to claim 19 , wherein the respective crossing regions parallel to the planar surface planes of the individual plates, the projections of the second channels onto the first individual plate enclose a crossing angle α with the webs of the first individual plate or that the projections of the first channels onto the second individual plate enclose a crossing angle α with the webs of the second individual plate, wherein 15°≤α≤165°.

34 . The separator plate according to claim 20 , wherein a first end of the first and the second channels is in fluid connection with a through-opening of the separator plate and that a second end of the first and the second channels is in fluid connection with at least a part of the active region of the respective'individual plate, wherein the through-opening is configured for feeding a medium to the active region or for discharging a medium out of the active region.

35 . The separator plate according to claim 34 , wherein the individual plates comprise beads which encompass the through-openings and which are for sealing the respective through-opening and that the first end of the first channels and/or of the second channels are in fluid connecti

Assignees

• Reinz Dichtungs Gmbh

Inventors

• Gruenwald Bernadette
• Kunz Claudia
• Scherer Joachim

Classifications

• H01M8/026

  characterised by grooves, e.g. their pitch or depth · CPC title

• H01M8/0254

  corrugated or undulated · CPC title

• H01M8/0258

  characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant · CPC title

• H01M8/0297

  Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other (H01M8/0271 takes precedence) · CPC title

• H01M8/0206 Primary

  Metals or alloys · CPC title