公开(公告)号：US09972876B2

公开(公告)日：2018-05-15

申请号：US15149296

申请日：2016-05-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungock Park ,  Kyounghwan Choi ,  Mokwon Kim ,  Joonhee Kim

IPC: H01M12/08 ,  H01M4/88 ,  H01M12/02 ,  H01M4/86 ,  H01M4/38 ,  H01M4/134 ,  H01M4/02

CPC classification number: H01M12/08 ,  H01M4/134 ,  H01M4/382 ,  H01M4/8668 ,  H01M4/8673 ,  H01M4/8807 ,  H01M12/02 ,  H01M2004/027 ,  H01M2004/8689 ,  H01M2300/0082 ,  Y02E60/128

Abstract: A metal air battery includes at least one gas diffusion layer assembly; a positive electrode layer disposed on a surface of the at least one gas diffusion layer assembly, wherein the positive electrode layer is capable of using oxygen as an active material; a protective electrolyte membrane disposed on the positive electrode layer; and a negative electrode metal layer disposed on the protective electrolyte membrane, wherein the gas diffusion layer assembly includes a first gas diffusion layer and a second gas diffusion layer, wherein the second gas diffusion layer is disposed on a first surface and an opposite second surface of the first gas diffusion layer, and wherein a gas diffusivity of the first gas diffusion layer is greater than a gas diffusivity of the second gas diffusion layer. Also, the gas diffusion layer assembly described above, and a method of manufacturing a metal air battery including the gas diffusion layer assembly.