Loading...
Please wait, while we are loading the content...
Similar Documents
Component variations and their effects on bipolar nickel-hydrogen cell performance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cataldo, Robert L. Manzo, Michelle A. Gahn, Randall F. Gemeiner, Russel P. Gonzalez-Sanabria, Olga D. |
| Copyright Year | 1987 |
| Description | A 50 cell bipolar nickel-hydrogen battery was assembled to demonstrate the feasibility of constructing a high voltage stack of cells. Various component combinations were tested in this battery. The battery had approximately 1 ampere-hour of capacity and was constructed from components with an active area of 2" X 2". The components were parametrically varied to give a comparison of nickel electrodes, hydrogen electrodes, separators, fill procedures and electrolyte reservoir plate thicknesses. Groups of five cells were constructed using the same components; ten combinations were tested in all. The battery was thoroughly characterized at various change and discharge rates as well as with various pulse patterns and rates. Over a period of 1400 40% DOD LEO cycles some of the groups began to exhibit performance differences. In general, only separator variations had a significant effect on cell performance. It also appears that shunt currents may have been operating within the stack, resulting in electrolyte transfer from one cell to another, thus contributing to cell performance variations. |
| File Size | 647619 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870013596 |
| Archival Resource Key | ark:/13960/t3c012w0w |
| Language | English |
| Publisher Date | 1987-01-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Electrodes Nickel Hydrogen Batteries Performance Tests Variability Electric Discharges Bipolarity Stacks Electrolytes Electric Batteries Storage Batteries Electrochemical Cells Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
