发明名称 |
Graphene-based battery electrodes having continuous flow paths |
摘要 |
Some batteries can exhibit greatly improved performance by utilizing electrodes having randomly arranged graphene nanosheets forming a network of channels defining continuous flow paths through the electrode. The network of channels can provide a diffusion pathway for the liquid electrolyte and/or for reactant gases. Metal-air batteries can benefit from such electrodes. In particular Li-air batteries show extremely high capacities, wherein the network of channels allow oxygen to diffuse through the electrode and mesopores in the electrode can store discharge products. |
申请公布号 |
US8758947(B2) |
申请公布日期 |
2014.06.24 |
申请号 |
US201113004138 |
申请日期 |
2011.01.11 |
申请人 |
Battelle Memorial Institute |
发明人 |
Zhang Jiguang;Xiao Jie;Liu Jun;Xu Wu;Li Xiaolin;Wang Deyu |
分类号 |
H01M8/22 |
主分类号 |
H01M8/22 |
代理机构 |
|
代理人 |
Tuan Allan C. |
主权项 |
1. A metal-air battery having a specific capacity greater than or equal to 5000 mAh/g graphene/carbon and having a metal electrode comprising Li and an air electrode comprising graphene, the air electrode comprising randomly arranged graphene nanosheets forming a network of channels defining continuous flow paths through the air electrode and by oxygen diffusing through the channels.
|
地址 |
Richland WA US |