Tuesday, November 27, 2007

Smarter energy storage for solar and wind power (Batteries, Supercapacitors)

Development of the first hybrid battery suitable for storing electricity from renewable energy sources such as solar and wind is now a step closer.
From PhysOrg:

CSIRO and Cleantech Ventures have invested in technology start-up Smart Storage Pty Ltd to develop and commercialise battery-based storage solutions.
Director of the CSIRO Energy Transformed National Research Flagship Dr John Wright said the Smart Storage battery technology aims to deliver a low cost, high performance, high power stationary energy storage solution suitable for grid-connected and remote applications.

“Cost effective, high performance energy storage has been the missing link for renewable energy,” he said.

Current battery storage solutions undergo frequent deep discharging and are unable to meet high power demands. They are also considered expensive due to high initial cost and short battery life.

“The Smart Storage technology is based on CSIRO’s ‘Ultrabattery’ which has been successfully trialled in hybrid vehicles,” Dr Wright said.

Extensive technology development is now underway to produce a low cost and easily manufactured deep-cycle stationary battery that meets demanding variable operating conditions.

The Smart Storage technology is a hybrid battery which combines an asymmetric ‘supercapacitor’ electrode and a lead-acid battery in a single unit cell. Advanced materials used for the electrodes and current management absorb and release charge rapidly and at efficiencies well above conventional battery types....MORE