公开(公告)号：US20210313652A1

公开(公告)日：2021-10-07

申请号：US17207794

申请日：2021-03-22

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： TSUTOMU KAWASHIMA ,  MIYUKI YOSHIMOTO ,  TAKESHI MINAMIURA ,  SHINICHIRO IMURA

IPC分类号： H01M50/446 ,  H01M8/1004

摘要： A gas diffusion layer includes conductive particles, conductive fibers, and polymer resins, in which an amount of surface functional groups in the conductive particle is 0.25 mmol/g or less.

公开(公告)号：US20190115602A1

公开(公告)日：2019-04-18

申请号：US16209022

申请日：2018-12-04

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： YOKO KASAI ,  YOSHIFUMI TAGUCHI ,  TSUTOMU KAWASHIMA ,  TSUTOMU FUJII ,  SHINICHIRO IMURA ,  TOSHIHIRO OTSUKA ,  MIYUKI YOSHIMOTO ,  KOZUE KUNIYOSHI

IPC分类号： H01M8/0247 ,  H01M8/0284

摘要： A fuel cell includes: an electrolyte membrane; a cathode positioned on a first surface of the electrolyte membrane; an anode positioned on a second surface of the electrolyte membrane; a cathode-side sealant positioned on a surface of the cathode different from the electrolyte membrane side of the cathode; an anode-side sealant positioned on a surface of the anode different from the electrolyte membrane side of the anode; a cathode-side separator positioned on a surface of the cathode-side sealant different from the cathode side of the cathode-side sealant; and an anode-side separator positioned on a surface of the anode-side sealant different from the anode side of the anode-side sealant. The anode-side separator has a projection on a surface stacked on the anode-side sealant, or the cathode-side separator has a projection on a surface stacked on the cathode-side sealant.

公开(公告)号：US20170373329A1

公开(公告)日：2017-12-28

申请号：US15697448

申请日：2017-09-07

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： TAKESHI MINAMIURA ,  TAKASHI YASUO ,  TSUTOMU KAWASHIMA ,  HIROAKI SUZUKI ,  MIYUKI YOSHIMOTO ,  SHINICHIRO IMURA

IPC分类号： H01M8/0273 ,  H01M8/0286 ,  H01M4/86 ,  H01M8/1004 ,  H01M8/0284

CPC分类号： H01M8/0273 ,  H01M4/8605 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/0247 ,  H01M8/0284 ,  H01M8/0286 ,  H01M8/1004 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2250/30 ,  Y02P70/56

摘要： A fuel cell includes a membrane electrode assembly, an anode gas diffusion layer, and a cathode gas diffusion layer, a pair of separators for clamping a laminate made up of the membrane electrode assembly, the anode gas diffusion layer and cathode gas diffusion layer, and a frame that is formed from thermosetting resin and disposed between the separators to surround a periphery of the laminate. At least one of the anode gas diffusion layer and cathode gas diffusion layer is formed from a composite of thermoplastic resin and conductive particles, and includes a protrusion that protrudes beyond a level of a surface of the frame which faces one of the pair of separators in a state that the laminate is not clamped between the separators under a predetermined pressure. The one of the separators presses the protrusion and gets the at least one of the gas diffusion layers to be deformed and put into contact with the frame in a state that the laminate is clamped between the separators under the predetermined pressure.

公开(公告)号：US20190245236A1

公开(公告)日：2019-08-08

申请号：US16254565

申请日：2019-01-22

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： YOSHIFUMI TAGUCHI ,  KOZUE KUNIYOSHI ,  MIYUKI YOSHIMOTO

IPC分类号： H01M8/2475 ,  H01M8/0247 ,  H01M8/248 ,  H01M8/0258 ,  H01M8/0267

CPC分类号： H01M8/2475 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/248 ,  H01M2008/1095

摘要： A fuel cell stack includes: a cell stack including separator plates, and cells each placed between the separator plates; a pair of current collectors that hold external lateral surface of the cell stack in a cell-stacking direction; and a pair of end plates that hold the pair of current collectors from outsides of said current collectors in the cell-stacking direction, wherein the cell stack possesses (i) at least one first opening formed on one external lateral surface of said cell stack, said one external lateral surface located along a direction perpendicular to the cell-stacking direction, (ii) a second opening formed on an external lateral surface of the cell stack opposite to the one external lateral surface, and (ii) at least one passage that extends through an inside of the cell stack from the at least one first opening or the at least one second opening.

公开(公告)号：US20190006696A1

公开(公告)日：2019-01-03

申请号：US16016623

申请日：2018-06-24

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： MIYUKI YOSHIMOTO ,  YOSHIFUMI TAGUCHI ,  TSUTOMU KAWASHIMA ,  HIROAKI SUZUKI

IPC分类号： H01M8/242 ,  H01M8/1004 ,  H01M8/0273 ,  H01M8/0267 ,  H01M8/0258 ,  H01M4/88

摘要： A fuel cell, including: a polymer electrolyte membrane; a pair of catalyst layers; a pair of gas-diffusion layers; a pair of separators including first and second separators; and at least one frame, wherein the catalyst layers, the gas-diffusion layers, and the separators are placed respectively on both sides of the polymer electrolyte membrane in this order, the at least one frame is placed between the pair of the separators, and surrounds outer peripheries of the gas-diffusion layers and the catalyst layers, and the frame has a rigidity of about 1 GPa or higher in terms of the Young's modulus.

公开(公告)号：US20180233760A1

公开(公告)日：2018-08-16

申请号：US15886816

申请日：2018-02-01

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： YOKO KASAI ,  TSUTOMU KAWASHIMA ,  MIYUKI YOSHIMOTO ,  YOSHIFUMI TAGUCHI ,  HIROAKI SUZUKI ,  SHINICHIRO IMURA

IPC分类号： H01M8/1018 ,  H01M8/026 ,  H01M2/16

CPC分类号： H01M8/1018 ,  H01M2/1673 ,  H01M8/026 ,  H01M8/0273 ,  H01M8/1004 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/521 ,  Y02P70/56

摘要： A fuel cell includes: an electrolyte membrane; a fuel-side catalyst layer placed on one surface of the electrolyte membrane; an oxidant-side catalyst layer placed on another surface of the electrolyte membrane; a fuel-side gas-diffusion layer placed on a main surface of the fuel-side catalyst layer; an oxidant-side gas-diffusion layer placed on a main surface of the oxidant-side catalyst layer; a pair of separators that hold the fuel-side gas-diffusion layer and the oxidant-side gas-diffusion layer therebetween; a frame that surrounds outer peripheries of the fuel-side gas-diffusion layer and the oxidant-side gas diffusion layer; a fuel-side seal member placed on a main surface of the fuel-side gas-diffusion layer; and an oxidant-side seal member placed on a main surface of the oxidant-side gas-diffusion layer. In the fuel cell, no spaces are provided between the fuel-side gas-diffusion layer and the fuel-side catalyst layer and between the oxidant-side gas-diffusion layer and the oxidant-side catalyst layer.