Patent · US Active

Graphene-based battery electrodes having continuous flow paths

US8758947B2 · kind B2 · utility

1Cited by

2References

15Claims

0Family size

Assignee

Battelle Memorial Institute · CH

Inventors

Jiguang Zhang · Xuzhou, CN
Jie Xiao · Nanchang, CN
Jun Liu · 红钢城街道, CN
Wu Xu · Richland, US
Xiaolin Li · San Diego, US
Deyu Wang · Shanghai, CN

Key dates

Filing date	Jan 11, 2011
Grant date	Jun 24, 2014
Priority date	—
Expiry date	Jan 27, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.