| 发明名称 | Electrodes having a state of charge marker for battery systems | ||
| 摘要 | One embodiment includes a battery cell electrode having a first material constructed and arranged to be charged and discharged and having a first potential versus state of charge relationship; a second material having a second potential versus state of charge relationship; wherein said second material is constructed and arranged to become active to transfer ions at a selected state of charge level to produce an observable change in measured potential from said first to said second potential versus relationship, and wherein the amount of the second material ranges from about 2 to about 30 weight percent of the battery cell electrode. | ||
| 申请公布号 | US9337484(B2) | 申请公布日期 | 2016.05.10 |
| 申请号 | US200912465102 | 申请日期 | 2009.05.13 |
| 申请人 | GM Global Technology Operations LLC | 发明人 | Verbrugge Mark W.;Liu Ping;Sherman Elena |
| 分类号 | H01M4/48;H01M4/485;H01M4/36;H01M4/58;H01M4/587;H01M10/0525 | 主分类号 | H01M4/48 |
| 代理机构 | BrooksGroup | 代理人 | BrooksGroup |
| 主权项 | 1. A battery cell electrode comprising: a first material constructed and arranged to be charged and discharged and having a first potential versus state of charge relationship; a second material comprising Li4+3zTi5O12 wherein 0<Z<1 and having a second potential versus state of charge relationship; wherein said second material is constructed and arranged to become active to transfer ions at a selected state of charge level to produce an observable change in measured potential from said first to said second potential versus relationship, and wherein the amount of the second material ranges from about 2 to about 30 weight percent of the battery cell electrode; and wherein said second material is present in an amount to cause said selected state of charge level to be between about 0.05 state of charge and about 0.95 state of charge, and wherein said second material is disposed as a second phase within the first material. | ||
| 地址 | Detroit MI US | ||