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Old 04-02-2021, 02:12 PM   #9 (permalink)
S Keith
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Quote:
Originally Posted by Isaac Zachary View Post
What misinformation are you referring to?
  1. Describe as "training" - it's clearly marketing.
  2. 4X the power - maybe true. The vehicle will not utilize any more power than has been established by the NiMH power curves. SoC calculations are based on NiMH current, voltage and temperature and are not meaningful when applied to LFP.
  3. 400A vs. 100A. Quoting burst discharge for high drain LFP (61C) vs. sustained NiMH currents (15C).
  4. NiMH 70% efficiency - true when looking at 0 to 100% SoC. In the 40-80% SoC normal operating range of the Toyota hybrids, they have near 100% Coulombic efficiency.
  5. 3X EV range. Might be true. Important to know that this is accomplished by consuming more of the capacity of the LFP battery resulting in a greater DoD and higher cycle wear.
  6. Lower voltage drop is related to the prior item. Yes, it's a performance advantage, but it comes at a cycle life cost.
  7. "Real results from real people" - who? Just a bunch of text on a screen.
  8. "No toxic fumes" - While arguably the safest Lithium chemistry, claiming it is safer than NiMH is a stretch. The electrolyte and vapors emitted from failing/malfunctioning LFP are extremely dangerous. Vapors will mix with the moisture in your airways and produce hydrofluoric acid. Electrolyte in NiMH is NaOH and KOH blend. NONflammable, NONexplosive but HIGHLY caustic (very strong base), but not inherently poisonous. Gases produced from NiMH are hydrogen and/or oxygen. Conveniently fails to mention that NiMH packs haven't had vent tubes on them for 10 years.

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Last edited by S Keith; 04-02-2021 at 03:16 PM..
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