公开(公告)号：US20200266495A1

公开(公告)日：2020-08-20

申请号：US16061529

申请日：2016-12-13

申请人： GS Yuasa International Ltd.

发明人： Hideharu TAKEZAWA ,  Atsumu IMASATO ,  Yasunori BABA

IPC分类号： H01M10/08 ,  H01M4/66 ,  H01M4/68 ,  H01M2/28 ,  H01M4/73

摘要： Disclosed is a lead acid battery including: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and an electrolyte containing sulfuric acid. The negative electrode includes a negative electrode active material, and a negative electrode grid that supports the negative electrode active material. The negative electrode grid contains tin in an amount of 0.1 mass % or more and 0.8 mass % or less. The electrolyte contains aluminum ions at a concentration of 1 mmol/L or more and less than 10 mmol L, and sodium ions at a concentration of 15 mmol/L or less.

公开(公告)号：US20180006334A1

公开(公告)日：2018-01-04

申请号：US15541890

申请日：2015-12-18

申请人： GS Yuasa International Ltd.

发明人： Tetsuyuki MURATA ,  Hideharu TAKEZAWA ,  Kazunari ANDO

IPC分类号： H01M10/08 ,  H01M4/38 ,  H01M4/73 ,  H01M4/02

CPC分类号： H01M10/08 ,  C22C11/06 ,  H01M4/38 ,  H01M4/73 ,  H01M2004/028

摘要： An objective is to improve the corrosion resistance of a positive electrode grid for lead acid batteries.Provided is a positive electrode grid for lead acid batteries, and a lead acid battery including the grid. The grid includes a lead alloy containing calcium and tin. The lead alloy has a calcium content of 0.10 mass % or less, and a tin content of 2.3 mass % or less, and a lattice constant of 4.9470 Å or less.