Spills - Subaru XV Crosstrek Hybrid Emergency Response Manual

Emergency Response

Spills

The XV Crosstrek Hybrid contains the same common automotive fluids used in other non-hybrid
Subaru vehicles, with the exception of the NiMH electrolyte used in the high voltage battery. 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 a 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.
Note:
Electrolyte leakage from the high voltage battery is unlikely due to its construction and the amount
of available electrolyte contained within the NiMH modules. Any spillage would not warrant a
declaration as a hazardous material incident. Responders should follow the recommendations as
outlined in this emergency response guide.
In an emergency, the NiMH battery part number G9280-47170 manufacturer's Material Safety Data
Sheet (MSDS) is available. Please refer to the attached document.
Handle NiMH electrolyte spills require using the following Personal Protective Equipment (PPE):
Splash shield or safety goggles. Fold down helmet shields are not acceptable for acid or
electrolyte spills.
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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