Sony has developed an energy storage module using lithium-ion rechargeable batteries made with olivine-type lithium iron phosphate as the cathode material. Key features of olivine-type lithium iron phosphate cell include high power output, long-life performance and excellent thermal stability. Sample shipments of the new module are scheduled to begin from June, 2010.
|The new Sony Li-ion 1.2 kWh module. Click to enlarge.|
The newly-developed module offers 1.2 kWh capacity. Multiple modules can be connected either in series or in parallel to expand to a higher voltage or capacity.
Each module is compatible with a high power output maximum of up to 2.5 kW, and can be used for various stationary power supplies such as UPS (uninterruptible power supply) for data servers or as a backup power supply for mobile phone wireless base stations.
Internal battery usage can be controlled safely by monitoring the state (voltage, current, temperature) of the internal batteries and communicating this to a linked external battery management system.
Sony estimates a 10-year useful life for the module with one charge-discharge cycle per day.
This energy storage module will be on display at the China International Battery Fair 2010 (held from 24-26 June 2010) in Shenzhen.