公开(公告)号：US20190081375A1

公开(公告)日：2019-03-14

申请号：US16051624

申请日：2018-08-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KOICHI SAWADA ,  TSUTOMU KAWASHIMA ,  KOJI OGAWA ,  YU OTSUKA

IPC: H01M12/06 ,  H01M4/583 ,  H01M4/64

Abstract: A positive electrode for an air battery includes a porous body including carbon. The porous body includes first pores each having a pore diameter of 4 nm or more and less than 100 nm and second pores each having a pore diameter of 100 nm or more and 10 μm or less. In the porous body, a second pore volume is greater than a first pore volume. The second pore volume is a cumulative pore volume of the second pores. The first pore volume is a cumulative pore volume of the first pores.

公开(公告)号：US20180301711A1

公开(公告)日：2018-10-18

申请号：US15767303

申请日：2016-10-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUTOMU KAWASHIMA ,  KEIICHI KONDOU ,  MASASHI SHOJI ,  KOJI OGAWA

IPC: H01M4/86 ,  H01M4/88

CPC classification number: H01M4/8626 ,  H01M4/88 ,  H01M4/8807 ,  H01M4/96 ,  H01M8/02 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/10 ,  Y02P70/56

Abstract: Disclosed is a gas-diffusion layer used for fuel cells, including: a porous material that includes as main ingredients conductive particles and a polymer resin, wherein said gas-diffusion layer internally possesses pores with a size from 0.01 μm to 0.05 μm, and hollows with a size from 1 μm to 200 μm. Further disclosed is a process for producing a gas-diffusion layer used for fuel cells, including: (i) kneading conductive particles, a polymer resin, a pore-forming agent, a surfactant, and a dispersion solvent; (ii) rolling the mixture obtained in Step (i) to shape said mixture into a sheet; (iii) baking the sheet-shaped mixture to sublime the pore-forming agent, thereby forming hollows therein, and to remove the surfactant and the dispersion solvent; and (iv) further rolling the baked mixture to adjust a thickness of the baked mixture.