公开(公告)号：US20180090770A1

公开(公告)日：2018-03-29

申请号：US15651406

申请日：2017-07-17

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H01M4/96 ,  H01M4/38 ,  H01M8/1018 ,  H01M10/0565 ,  H01M12/08 ,  H01M4/40

CPC classification number: H01M4/96 ,  H01M4/382 ,  H01M4/405 ,  H01M4/861 ,  H01M4/8642 ,  H01M4/8657 ,  H01M8/1018 ,  H01M10/0565 ,  H01M12/08 ,  H01M2004/027 ,  H01M2004/8689 ,  H01M2008/1095 ,  Y02E60/128

Abstract: A positive electrode for a metal-air battery, the positive electrode including: a first layer disposed on a surface of an electrolyte membrane or a separator and including a first carbon material, a first electrolyte, and a first binder having an affinity with the first electrolyte; and a second layer disposed on the first layer and including a second carbon material, a second electrolyte, and a second binder having an affinity with the second electrolyte, wherein the first carbon material is different from the second carbon material, the first carbon material has a Brunauer Emmett Teller specific surface area which is greater than a Brunauer Emmett Teller specific surface area of the second carbon material, and wherein an amount of the first binder may be about 1.5 times to about 3 times greater than an amount of the second binder.

公开(公告)号：US20170104253A1

公开(公告)日：2017-04-13

申请号：US15204337

申请日：2016-07-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyounghwan Choi ,  Jungock Park ,  Joonhee Kim

IPC: H01M12/08 ,  H01M8/04082 ,  H01M4/86

CPC classification number: H01M12/08 ,  H01M4/8626 ,  H01M8/04201 ,  H01M2004/8689 ,  Y02E60/128

Abstract: Metal-air batteries include first and second battery stack structures each comprising an anode, an anode electrolyte layer, a cathode, and a gas diffusion layer, and cathode current collectors disposed between the first and second battery stack structures and having a non-flat shape, where the cathodes of the first and second battery stack structures face each other, the cathode current collectors contact the gas diffusion layers of the first and second battery stack structures, at least one of the cathode current collectors includes protrusions, and an empty space between the cathode current collector and the first and second battery stack structures is an air supply unit to supply air to the gas diffusion layer.