Nickel Hydrogen Cells Potentially longer life than NiCads Hydrogen gas negative electrode eliminates some failure modes Highly tolerant of high overcharge rates and reversal Individual. common and single pressure vessel types
Nickel Hydrogen Cells • Potentially longer life than NiCads – Hydrogen gas negative electrode eliminates some failure modes • Highly tolerant of high overcharge rates and reversal • Individual, common and single pressure vessel types
Lithium ion cells Recently developed system, may provide distinct advantages over Nicd and nih2 Operating voltage is 3. 6 to 3. 9 v which reduces the number of cells 65% volume advantage and 50% mass advantage over state of the art systems
Lithium Ion Cells • Recently developed system, may provide distinct advantages over NiCd and NiH2 • Operating voltage is 3.6 to 3.9 v which reduces the number of cells • 65% volume advantage and 50% mass advantage over state of the art systems
Depth of discharge (Image removed due to copyright considerations
Depth of Discharge (Image removed due to copyright considerations.)