技术文章

Modern lead battery systems1

Modern lead battery systems
With the efforts of going green, there is renewed interest in finding new battery systems for wheeled mobility and automotive applications to lower our dependency of hydrocarbon. This page summarizes the work done with lead-based chemistries.

When compiling data of new battery system, the battery inventors are leaning towards publishing the positive attributes and the negatives are kept under wraps. This is why much hyped systems that show great potential on paper do not always make it to commercial applications but quietly die.

Firefly Energy
The composite plate material of the Firefly Energy battery is based on a lead acid system that is lighter, longer living and has higher active material utilization than current lead acid systems. The first battery reaching the market will include foam electrodes for the negative plates. The performance is comparable to NiMH with possible lower manufacturing costs. A design concern is microtubule blockage caused by PbSO4 crystal growth that will be dominant during low discharge conditions. In addition, crystal expansion could cause surface area reduction. Firefly Energy is a spin-off of Caterpillar.

Axion Power
The Axion Power e3 Supercell is a hybrid battery/ultracapacitor in which the positive electrode is standard lead dioxide and the negative electrode is activated carbon. The assembly process is similar to lead acid. The Axion Power battery is aimed at the hybrid car market and the company claims faster recharge times and longer cycle life on deep discharge than with customary lead acid systems. Specifications show a low power density of 12Wh/kg.

Altraverda
Like Firefly Energy, the Altraverda battery is based on lead acid, using a proprietary titanium sub-oxide ceramic structure [Ebonex] for the grid, and AGM separators. The un-pasted plate contains Ebonex particles in a polymer matrix with a thin lead alloy foil on the external surfaces. The energy density is 50-60Wh/kg. Based in the UK, Altraverda is working with East Penn in the USA, Exide in India and Vladar Enterprise in the Ukraine.

CSIRO Ultrabattery
The CSIRO Ultrabattery combines an asymmetric ultracapacitor and a lead acid battery in each cell. The capacitor enhances the power and lifetime of the battery by acting as a buffer during charging and discharging. The technology has been licensed to Furukawa Battery. The lifetime is 4 times longer than customary lead acid systems and produces 50% more power. It is also 70% cheaper to make than current hybrid electric vehicle (HEV) batteries. CSIRO batteries are undergoing road trials in a Honda Insight HEV and show good results.

EEStor
This is the mystery battery/ultracapacitor that receives much media attention. The battery is based on modified barium titanate ceramic powder. EEStor claims that the battery has a specific energy of up to 280Wh/kg. The company is very secretive about their invention and only limited information is available. Financial Post, 26 June 2008 compares EEStor with specifications of NiMH and customary lead acid systems.

 

EEStor

NiMH Hybrid

Lead Acid, Gel

Weight (lbs)

300

1,700

3,600

Self-discharge rate/30 days

0.02%

5%

1%

Charge time 100% SoC

3-6 minutes

>3H

3-15h

Deep cycle wear-down

None

High

Very high

Hazardous material

None

Yes

Yes

Estimated cost

$5,200

$11,200

$5,200







 


 

产品搜索
产品分类
畅销产品
24V 10 ah磷酸铁铝电动自行车电池 OSN-BX-2410
36V 10aH 磷酸铁铝电动自行车电池 OSN-BX-3610
36V 10AH 磷酸铁铝动力电动车电池 OSN-DK-3610
48V 9AH 磷酸铁铝电池 OSN-DK-4809
磷酸铁铝电动自行车电池36V 12AH OSN-DK-3612
24V 12AH 磷酸铁铝电动车电池 OSN-PL-2412
36V 8AH 磷酸铁铝动力电动车电池  OSN-PL-3608
36V 6AH 磷酸铁铝电动自行车电池 OSN-FL-3606
24V 9AH 磷酸铁铝电动车电池 OSN-FL-2409
OSN-RB-24V15AH OSN-RB-24V15AH
  • OSN-RB-24V15AH
  • 磷酸铁锂OSN-RB-24V15AH单体规格:26650电芯,3.2V3AH用...
OSN-RB-48V20AH OSN-RB-48V20AH
  • OSN-RB-48V20AH
  • 磷酸铁锂OSN-RB-48V20AH单体规格:26650电芯,3.2V3AH用...
OSN-RB-36V10AH OSN-RB-36V10AH
  • OSN-RB-36V10AH
  • 磷酸铁锂OSN-RB-36V10AH单体规格:26650电芯,3.2V3AH用...
联系我们
QQ:
179588
电话:
13530100880
E-mail:
service@osnpower.com
电话:0755-25609940 传真:0755-25609943 地址:深圳宝安固戍裕兴科技园 粤ICP备09092823号-1

粤公网安备 44030302000621号