Skip to main content

Grant to fund commercialisation of PbC batteries for micro-hybrid vehicles

Axion Power International, the developer of advanced lead-¬carbon PbC batteries and energy storage systems, has been awarded a US$150,000 grant from the US Department of Energy (DoE) to fund a commercialisation plan for the use of its PbC batteries in a low-cost, high-efficiency dual battery architecture for micro-hybrid vehicles.
May 25, 2012 Read time: 3 mins
RSS5746 Axion Power International, the developer of advanced lead-¬carbon PbC batteries and energy storage systems, has been awarded a US$150,000 grant from the 5631 US Department of Energy (DoE) to fund a commercialisation plan for the use of its PbC batteries in a low-cost, high-efficiency dual battery architecture for micro-hybrid vehicles.

Micro-hybrid vehicles, which are well on their way to becoming the most common type of automotive vehicle (estimated market size is 25 million by 2016), currently use a ‘start-stop’ system which automatically turns off the engine when the vehicle comes to rest, and then automatically restarts the engine when the brake is disengaged.

Next generation micro-hybrid vehicles will, and in some cases already do, include added features such as regenerative braking, ‘sailing’ (i.e. turning the engine off as the vehicle slows or coasts below a pre-determined speed) and perhaps some form of battery assist to the initial vehicle acceleration.

The lead-acid battery [LAB] is not designed to suitably provide the dual function required in today's micro-hybrid vehicles, let alone handle the added loads of future micro-hybrid vehicles. The dual feature includes working with the alternator generator to start and power the vehicle while the engine is on (LAB is good at this), and then separately, powering the vehicle's ancillary load when the engine is off (LAB is very poor at this). The LAB's shortcomings with respect to powering the ancillary load are directly attributable to the battery's rapid decline in charge acceptance over time due to sulfation. This occurs in the LAB after just a few months of usage.

The PbC battery, on the other hand, has been proven to quickly accept full system charge (i.e. no loss of charge acceptance) for more than five years of usage. This advantage translates into much greater "engine off" time resulting in much greater fuel economy with significantly reduced Co2 emissions. Both of these features are important goals of automotive OEM's and of political leaders in the countries where they manufacture vehicles.

"This is a very important grant for Axion Power, not just for the financial assistance being provided, but for the acknowledgement by the DoE of the potential benefits of our PbC technology in new and innovative constructs and designs," said Axion Power CEO Thomas Granville. "Our technology is ideal for the new world of environmentally friendly, technologically advanced automotive vehicles. Our PbC batteries test out at a consistent high rate of charge acceptance for upwards of five years of usage.  PbC's can be recharged quickly, have a proven safety record and are 100 per cent recyclable - unlike some of the more exotic chemistries like lithium-ion batteries."

Related Content

  • August 1, 2023
    Transportation’s electrifying future
    Climbing out of our silos will be vital to create the frameworks and networks needed to decarbonise transport, if we are serious about mitigating climate change, says Colin Sowman
  • February 26, 2016
    Traction motors for electric vehicles change radically
    According to Franco Gonzalez, senior technology analyst, IDTechEx, there are about 200 companies making traction motors for electric vehicles, rather like the 200 making the lithium-ion batteries that increasingly power them. However, whereas three types of lithium-ion battery chemistry and construction are taking almost all of the business, with traction motors the situation is much more complex because the diversity of needs calls for many very different types of motor from brushless out-runner motors for
  • April 23, 2012
    IBM Research boosts Battery 500 project
    IBM has announced that two industry leaders, Asahi Kasei and Central Glass, will join its Battery 500 Project team and collaborate on far-reaching research with the potential to accelerate the switch from gasoline to electricity as the primary power source for vehicles. In 2009, IBM Research pioneered a sustainable mobility project to develop lithium-air battery technology capable of powering a family-sized electric car for approximately 500 miles (800 km) on a single charge.
  • June 24, 2016
    Elimination of electric vehicle systems
    According to IDTechEx Research reports, Power Electronics for Electric Vehicles 2016-2026, Mild Hybrid 48V Vehicles 2016-2031 and Structural Electronics 2015-2025: Applications, Technologies, Forecasts”, el4ctric vehicles (EVs)have a cost challenge: hybrids have complexity problems meaning reliability and space issues. Extra power electronic units arrive for tasks such as a vehicle-to-grid, vehicle-to-house and inductive charging. Many more will be added in future such as regeneration modules - thermoelect