Battery Specifi cations Manufacturer: Panasonic Battery Type: Nickel Metal Hydride Rated Capacity: 5.5 Ahr Rated Power: Not Available Nominal Pack Voltage: 158.4 VDC Nominal Cell Voltage …

Test Results. Test results for the end-of-life battery testing are provided herein. Battery test results include those from the Static Capacity Test and the Hybrid Pulse Power Characterization (HPPC) Test1. Static Capacity Test Results. Static capacity test results are summarized in the fact sheet. The test was perfomed on January 1, 2009 with a vehicle odometer reading of 161,047 miles. The measured average C/1-rate capacity was 4.71 Ah compared with the manufacturer’s rated capacity of 5.5 Ah. The measured average energy capacity was 780 Wh. Figure 1 is a graph of battery voltage versus energy discharged. This graph illustrates the voltage values during the constant current discharge versus the cumulative energy discharged from the battery at a C/1 discharge rate. HPPC Test Results. HPPC test results are summarized in the fact sheet. The peak pulse discharge power at 10 seconds and 1 second into the pulse are 12.4 kW and 17.4 kW at 50% SOC respectively. The peak pulse charge power at 10 seconds and 1 second into the pulse are 13.2 kW and 19.2 kW at 50% SOC respectively. The maximum and minimum cell voltages used for this analysis were 1.5 V and 1.0 V respectively. Figures 2 and 4 illustrate the battery’s charge and discharge pulse resistance graphs which show internal resistance at various depths of discharge. Each curve represents the resistance at the end of the specified pulse interval. Figures 3 and 5 illustrate the battery’s charge and discharge pulse power graphs which show the useable power at various depths of discharge. Each curve represents the pulse power at the end of the specified pulse interval at the cell voltage limits. Figure 6 is a plot of the battery’s HPPC 10 second pulse power as a function of state of charge. The graph shows the power values over the range of state of charge as well as the DOE target performance goals of 25 kW discharge power and 20 kW regenerative power for a hybrid minimum power assist battery. The battery does not meet the DOE power performance goals for any battery state of charge range. Figure 7 is a plot of the battery’s useable energy as a function of power. The x-axis indicates a desired discharge or charge power level and the y-axis indicates the useable energy at that power. The dashed horizontal line shows the DOE Minimum Power Assist HEV energy performance goal of 300 Wh. The dashed vertical line shows the DOE Minimum Power Assist power performance goal of 25 kW. The Civic battery’s useable energy curve falls partially above and…

Source: http://avt.inel.gov/

Download 2006 Honda Civic-8725 Hybrid Battery Test Results