Table 2.1. International Space Station Nickel-Hydrogen Cell Design Matrix

Capacity (A h) Stack BB/Rec Stack Single/Dual Separator Zircar/
Asbestos		 Serrated Separator Ni sinter Dry/Slurry Catalyzed Wall KOH conc (%) Cell diam (in.)
Eagle Picher Standard design 65 BB Dual ZZ No Slurry No 31 3.5
Advanced design 65 BB Dual ZA No Slurry Yes 31 3.5
Advanced design 81 BB Dual ZA No Slurry Yes 31 3.5
KOH test 81 BB Dual ZZ No Slurry No 31/26 3.5
22 cell SPV 50 BB N/A ZZ No Slurry No 31 10
Gates Standard design 65 Rec Single ZZ No Dry No 31 3.5
Advanced design 81 Rec Single ZZ No Dry No 31 3.5
KOH test 65 Rec Single ZZ No Dry No 31/26 3.5
Yardney Standard design 65 Rec Dual ZA No Slurry No 31 3.5
Advanced design 65 BB Dual ZA Yes Slurry Yes 26 3.5
Advanced design 81 BB Dual ZA Yes Slurry Yes 26 3.5
SAFT KOH test 81 BB Single ZZ No Slurry No 31/26 3.5

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