The European Union is developing new batteries based on graphene

In recent years, Working Group IX of the EU's Graphene Flagship has worked to develop new experimental routes
that enable graphene-based materials to be applied to some energy conversion and storage devices in the future.

It is reported that perovskite photovoltaic cells with graphene are the core topic
of Working Group Nine.
This solar cell contains a compound with a perovskite structure for light harvesting
.
In perovskite-type solar cells, graphene or other 2D materials are used as transparent electrodes to replace the commonly used indium tin oxide film, which greatly reduces manufacturing costs
while improving equipment efficiency.
This advanced technology also enables some problems to be solved, such as the reduction
of the stability of solar cells under long-term radiation.

Chemists at the University of Cambridge recently announced to the media a breakthrough in the development of graphene in the field of lithium-oxygen batteries
.
Compared with the most advanced rechargeable batteries currently available, lithium-oxygen batteries have very obvious advantages
.
However, the development of lithium-oxygen batteries remains challenging
until currently feasible selective technologies are implemented in high-power applications.
The Cambridge researchers used a porous graphene electrode in a lithium-oxygen demonstration battery, replacing the commonly used graphite electrode
.
The theoretical energy density of this new lithium-oxygen battery is more than ten times
the energy density of lithium-ion batteries currently widely used in mobile devices.