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Ni-h2 cell separator matrix engineering
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Scott, W. E. |
| Copyright Year | 1992 |
| Description | This project was initiated to develop alternative separator materials to the previously used asbestos matrices which were removed from the market for health and environmental reasons. The objective of the research was to find a material or combination of materials that had the following characteristics: (1) resistant to the severe conditions encountered in Ni-H2 cells; (2) satisfactory electrical, electrolyte management, and thermal management properties to function properly; (3) environmentally benign; and (4) capable of being manufactured into a separator matrix. During the course of the research it was discovered that separators prepared from wettable polyethylene fibers along and in combination with potassium titanate pigment performed satisfactory in preliminary characterization tests. Further studies lead to the optimization of the separator composition and manufacturing process. Single ply separator sheets were manufactured with 100 percent polyethylene fibers and also with a combination of polyethylene fibers and potassium titanate pigment (PKT) in the ratio of 60 percent PKT and 40 percent fibers. A pilot paper machine was used to produce the experimental separator material by a continuous, wet laid process. Both types of matrices were produced at several different area densities (grams/sq m). |
| File Size | 1944591 |
| Page Count | 71 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920021705 |
| Archival Resource Key | ark:/13960/t0wq4wb0v |
| Language | English |
| Publisher Date | 1992-02-22 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Nickel Hydrogen Batteries Polyethylenes Wettability Asbestos Synthetic Fibers Titanates Electrolytes Separators Temperature Control Potassium 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 |
