公开(公告)号：US20230031873A1

公开(公告)日：2023-02-02

申请号：US17788345

申请日：2020-11-05

Applicant: GS Yuasa International Ltd.

Inventor： Koichiro NAKAO ,  Toshio KITAMI ,  Masahiro YAMASAKI

IPC: H01M10/16 ,  H01M4/14 ,  H01M50/114

Abstract: A lead-acid battery includes: a housing that includes a container including one open end and a lid closing the opening of the container; and an element that includes a plurality of positive electrode plates and a plurality of negative electrode plates alternately arranged in the container with a separator interposed therebetween. Each positive electrode plate includes a first foot protruding toward a bottom face of the container, and each negative electrode plate includes a second foot protruding toward the bottom face of the container. The first foot and the second foot are disposed at positions different from each other when viewed from the arrangement direction of the elements. A rib, which extends from an end of a specific region sandwiched between a row including a plurality of the first feet protruding from the element and a row including a plurality of the second feet protruding from the element and divides at least a part of the specific region into a plurality of regions, is formed on the bottom face of the container when viewed from a direction perpendicular to the bottom face.