Spillage - Lexus GS 450h 2006 Dismantling Manual

Spillage

The GS450h contains the same common automotive fluids used in other non-hybrid Lexus
vehicles, with the exception of NiMH electrolyte used in the HV battery pack. The NiMH
battery electrolyte is a caustic alkaline (pH 13.5) that is damaging to human tissues. The
electrolyte, however, is absorbed in the cell plates and will not normally spill or leak out even
if a battery module is cracked. A catastrophic crash that would breach both the metal battery
pack case and the plastic battery module would be a rare occurrence.
Similar to the use of baking soda to neutralize a lead-acid battery electrolyte spill, a dilute
boric acid solution or vinegar can be used to neutralize a NiMH battery electrolyte spill.
In an emergency, Lexus Material Safety Data Sheets (MSDS) are available by contacting:
•
Handle NiMH electrolyte Spills Using The following Personal Protective Equipment
(PPE):
•
Splash shield or safety goggles. Folding down helmet shields is not acceptable for
alkaline spillage.
•
Rubber, latex or Nitrile gloves.
•
Apron suitable for alkaline.
•
Rubber boots.
•
Neutralize NiMH Electrolyte
•
Use a boric acid solution or vinegar.
•
Boric acid solution - 800 grams boric acid to 20 liters water or 5.5 ounces boric
acid to 1 gallon of water.
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