A123Systems Launches New Higher-Power, Faster Recharging Li-Ion Battery Systems
2 November 2005
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A123Systems, developer of a new generation of lithium-ion batteries, today unveiled its technology that delivers up to 10x longer life, 5x power gains and dramatically faster charge time (more than 90% capacity in five minutes) over conventional high-power battery technology.
These characteristics make the battery highly suited for hybrid, plug-in hybrid and electric vehicle applications, and A123 Systems is working with the DOE to develop next-generation materials for hybrid vehicles.
A123Systems’ batteries use proprietary nanoscale electrode technology built on research at Massachusetts Institute of Technology (MIT) and exclusively licensed from MIT.
Traditional Li-Ion technology uses active materials with particles that range in size between 5 and 20 microns. These large particles are required to minimize safety risks inherent to first-generation Li-Ion chemistries.
|A123 Li-Ion Power|
|Pulse duration||C rate||Power||Density|
|Continuous discharge||30||189W||2,700 W/kg|
|Long pulse||80||240W||3,480 W/kg|
|Instant pulse||100||344W||4,990 W/kg|
A123 batteries, however, use a safe and stable active material that can use particle sizes below 100nm without adverse reaction. This new storage electrode enables much faster kinetics providing higher power than is yet possible from any other Li-Ion chemistry.
Furthermore, to take advantage of the power delivered by this new chemistry, A123 has developed novel electrode and cell designs that provide the lowest impedance of any battery of its size, and a new electrolyte system that operates over a much wider temperature range.
The A123 batteries offer:
Twice the energy density of other Li-Ion HEV cells, with the highest power to weight ratio of any commercially available battery (2,700 W/kg at continuous discharge).
The lowest impedance of any cell/packs in its class.
Low impedance growth even at very high charge/discharge rates.
Excellent performance over a wide temperature range (-30 to 60 degrees C).
Intrinsically safe chemistry (especially important in large batteries).
Outstanding calendar life.
Novel design that withstands extreme shocks and vibration.
A123Systems’ first battery is now in production and being delivered to the Black & Decker Corporation for use in DEWALT power tools.
A123Systems has raised more than $32 million in funding from heavyweight investors, including include Desh Deshpande (chairman of the A123 board), Qualcomm, Sequoia Capital, Motorola, North Bridge Venture Partners, MIT, YankeeTek and OnPoint Technologies, a strategic private equity firm funded by the United States Army.
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