公开(公告)号：US20200243869A1

公开(公告)日：2020-07-30

申请号：US16637049

申请日：2018-07-25

Applicant: GS Yuasa International Ltd.

Inventor： Akinori HAZE ,  Kohei FUJITA ,  Susumu OBUCHI

IPC: H01M4/73 ,  H01M10/06 ,  H01M2/16

Abstract: The following relational expression holds among: the number (L1) of first inner ribs (320) extending toward a first vertex-side portion (A11) between a position of a first vertex (C1) and a position separated therefrom by a first reference length; the number (M1) of first inner ribs (320) connected to both a specific second inner rib (310V) and the first vertex-side portion (A11) of a first frame rib (210L); the number (P1) of second inner ribs (310) extending toward a first vertex-side portion (A21) between the position of the first vertex (C1) and a position separated therefrom by the first reference length; and the number (Q1) of second inner ribs (310) connected to both a specific first inner rib (320V) and the first vertex-side portion (A21) of a second frame rib (220D), (M1/L1)>(Q1/P1)

公开(公告)号：US20170222214A1

公开(公告)日：2017-08-03

申请号：US15416751

申请日：2017-01-26

Applicant: GS Yuasa International, Ltd.

Inventor： Susumu OBUCHI ,  Kohei FUJITA ,  Akinori HAZE

IPC: H01M4/20 ,  H01M4/56 ,  H01M4/66 ,  H01M10/12 ,  H01M4/80

CPC classification number: H01M4/20 ,  H01M4/56 ,  H01M4/662 ,  H01M4/80 ,  H01M10/06 ,  H01M10/12 ,  H01M2004/028

Abstract: A positive electrode plate for a lead-acid battery includes: a punched grid having grid crosspieces; and a positive electrode material. A corner portion of the grid crosspiece of the punched grid in a cross section perpendicular to an extending direction of the grid crosspiece is deformed, and a density of the positive electrode material after being subjected to formation is 4.1 [g/cm3] or more.