| 发明名称 |
ACTIVE MATERIALS FOR LITHIUM ION BATTERIES |
| 摘要 |
Disclosed herein are cathode formulations comprising a lithium ion-based electroactive material having a D50 ranging from 1 μm to 6 μm; and carbon black having BET surface area ranging from 130 to 700 m2/g and an OAN ranging from 150 mL/100 g to 300 mL/100 g. Also disclosed are cathode formulations comprising a first lithium ion-based electroactive material having a particle size distribution of 1 μm≦D50≦5 μm, and a second lithium ion-based electroactive material having a particle size distribution of 5 μm<D50≦15 μm. Cathodes comprising these active materials can exhibit a maximum pulse power in W/kg and W/L of the mixture higher than maximum pulse power of the first or second electroactive material individually, or an energy density in Wh/kg and Wh/L of the mixture higher than energy density of the first or second electroactive material individually. The cathode formulations can further comprise carbon black having BET surface area ranging from 130 to 700 m2/g. Also disclosed are cathodes comprising the cathode formulations, electrochemical cells comprising the cathodes, and methods of making the cathode formulations and cathodes. |
| 申请公布号 |
US2014377659(A1) |
申请公布日期 |
2014.12.25 |
| 申请号 |
US201414309309 |
申请日期 |
2014.06.19 |
| 申请人 |
Cabot Corporation |
发明人 |
Oljaca Miodrag;Blizanac Berislav;DuPasquier Aurelien;Wall Ryan C.;Suszko Arek;Koehlert Kenneth |
| 分类号 |
H01M4/36;H01M4/52;H01M4/505;H01M4/04;H01M4/525;H01M4/136;H01M4/485;H01M4/50;H01M4/133;H01M4/131 |
主分类号 |
H01M4/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A cathode formulation comprising:
a first lithium ion-based electroactive material having a particle size distribution of 1 μm≦D50≦5 μm; and a second lithium ion-based electroactive material having a particle size distribution of 5 μm<D50≦15 μm; wherein the maximum pulse power in W/kg and W/L of the mixture is higher than maximum pulse power of the first or second electroactive material individually. |
| 地址 |
Boston MA US |
