公开(公告)号：US20240194863A1

公开(公告)日：2024-06-13

申请号：US18490638

申请日：2023-10-19

Applicant: FDK CORPORATION

Inventor： Soma Suzuki ,  Satoshi Murase ,  Tomomichi Yamaguchi ,  Takeshi Ito ,  Takahiro Endo

IPC: H01M4/38 ,  H01M4/24 ,  H01M4/48 ,  H01M10/24 ,  H01M12/06

CPC classification number: H01M4/38 ,  H01M4/244 ,  H01M4/48 ,  H01M10/24 ,  H01M12/065 ,  H01M2004/027

Abstract: A negative electrode for a zinc battery is disclosed. The negative electrode comprises: a plate-like negative electrode core member; and a negative electrode mixture layer formed on at least one main surface of the negative electrode core member. The negative electrode mixture layer contains a negative electrode mixture. The negative electrode mixture includes zinc particles formed from at least one of zinc and a zinc alloy. On the at least one main surface of the negative electrode core member, a number of deformed areas in which a change in a length in a thickness direction of the negative electrode core member with respect to a reference exceeds 50 μm is 2.4 or less per square millimeter.

公开(公告)号：US20240332636A1

公开(公告)日：2024-10-03

申请号：US18604474

申请日：2024-03-13

Applicant: FDK CORPORATION

Inventor： Satoshi Murase ,  Soma Suzuki ,  Tomomichi Yamaguchi ,  Taketoshi Banno ,  Takeshi Ito

IPC: H01M10/28 ,  H01M4/24 ,  H01M4/42 ,  H01M4/66 ,  H01M50/44 ,  H01M50/454 ,  H01M50/457 ,  H01M50/489 ,  H01M4/02

CPC classification number: H01M10/286 ,  H01M4/244 ,  H01M4/42 ,  H01M4/661 ,  H01M50/44 ,  H01M50/454 ,  H01M50/457 ,  H01M50/489 ,  H01M2004/027

Abstract: A battery includes an outer can and an electrode group housed in the outer can together with an alkaline electrolyte solution. The electrode group includes a positive electrode and a negative electrode stacked together with a separator therebetween. The negative electrode includes a negative electrode core and a negative electrode mixture retained on the negative electrode core. The negative electrode mixture contains at least one of zinc, a zinc alloy, or a zinc-containing compound. The negative electrode core is composed of a nonporous copper foil. The separator is a composite including a nonwoven fabric and a microporous film stacked together in the thickness direction. A value of A/B is 0.28 or more and 0.53 or less, where A is the total thickness of the microporous film, and B is the total thickness of the nonwoven fabric.