公开(公告)号：US20220344662A1

公开(公告)日：2022-10-27

申请号：US17762624

申请日：2020-09-24

Applicant: GS Yuasa International Ltd.

Inventor： Ryotaro WAMA ,  Akihito TSUJINAKA

IPC: H01M4/62 ,  H01M4/14 ,  H01M4/583

Abstract: A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode material. The negative electrode material contains an organic expander and carbonaceous material. The organic expander contains a unit of a bisarene compound and a unit of a monocyclic aromatic compound having a hydroxy group. The unit of a bisarene compound is at least one selected from the group consisting of a unit of a bisphenol S compound and a unit of a bisphenol A compound.