公开(公告)号：US11251434B2

公开(公告)日：2022-02-15

申请号：US17253656

申请日：2019-07-08

申请人： NIPPON PAPER INDUSTRIES CO., LTD.

发明人： Shigeki Yokoyama ,  Hikaru Aimi

IPC分类号： H01M4/00 ,  H01M4/62 ,  H01M4/14 ,  H01M4/02

摘要： An organic expander for a lead storage battery, the organic expander containing lignin in which the methoxy group content relative to the solid content is 3 to 20 mass %, wherein the organic expander contains an organic acid in an amount of 0.0001 to 5 mass % relative to the solid content of the organic expander. It is possible to improve charge acceptance while maintaining the discharge characteristics of the lead storage battery.