发明授权
- 专利标题： Negative active material, method of manufacturing its material, and lead acid battery
- 专利标题（中）： 负极活性物质，其材料制造方法，铅酸蓄电池
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申请号： US10381282申请日： 2001-11-08
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公开(公告)号： US07022433B2公开(公告)日： 2006-04-04
- 发明人: Hirofumi Umetani , Ikumi Ban , Yoshihiro Eguchi
- 申请人： Hirofumi Umetani , Ikumi Ban , Yoshihiro Eguchi
- 申请人地址： JP Kyoto
- 专利权人： GS Yuasa Corporation
- 当前专利权人： GS Yuasa Corporation
- 当前专利权人地址： JP Kyoto
- 代理机构： Crowell & Moring LLP
- 国际申请： PCT/JP01/09758 WO 20011108
- 国际公布： WO02/39519 WO 20020516
- 主分类号： H01M4/60
- IPC分类号： H01M4/60 ; H01M6/00
摘要：
A negative active material is characterized by being prepared by adding a lignin having a unit structure represented by the formula (I) as the main structure to a lead oxide. Since the lignin of the formula (I) is added, the negative active material can be prevented from shrinkage due to charge/discharge. (wherein R1 is H, OH, COOH, SO3H, SH, C6H5, COO−, SO3−, R2C6H4, (R2)2C6H3, or (R2)3C6H2; and R2 is at least one member selected from among OH, COOR, SO3H, and CH2SO3H.)