Title :
Photovoltaic testing of 2 kWh common pressure vessel nickel hydrogen batteries
Author :
Zagrodnik, Jeffrey P. ; Jones, Kenneth R.
Author_Institution :
Johnson Controls Battery Group Inc., Milwaukee, WI, USA
Abstract :
A common pressure vessel (CPV) nickel-hydrogen battery for terrestrial applications has been developed. A 7 kWh boilerplate battery and four 2 kWh batteries are being tested for a variety of photovoltaic applications. During initial testing, the 7 kWh battery delivered 7.85 kWh. In recent testing, the battery delivered over 9.5 kWh. From the onset of testing, one cell in one 2 kWh battery showed evidence of shorting, resulting in a reduced voltage and capacity. Despite this problem, the series-connected battery pair has consistently delivered more than the nominal 4 kWh energy capacity during characterization cycling
Keywords :
hydrogen; nickel; photovoltaic power systems; secondary cells; testing; 2 kWh; 7 kWh; Ni-H2 batteries; boilerplate battery; characterization cycling; common pressure vessel; energy capacity; photovoltaic testing; series-connected battery pair; Battery management systems; Circuit testing; Cooling; Costs; Hydrogen; Nickel; Photovoltaic systems; Solar power generation; Technology management; Thermal management;
Conference_Titel :
Photovoltaic Specialists Conference, 1991., Conference Record of the Twenty Second IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-87942-636-5
DOI :
10.1109/PVSC.1991.169297
