I have the following problem we have some battery modules which show an insulation fault during dielectric strength testing 2,7 kV DC leakage current > 8 mA but we can not localize the fault. Therefore we want to set the module in a water bath and supply some voltage to the cell housing and an electrode in the bath and increase the water/liquid level to localize the fault (the cell insulation is watertight). As water is not an a very good conductor we would like to add a non-corrosive electrolyte to the water to increase conductivity.
Any suggestions what we could use as electrolyte whiteout damaging the module, especially the insulation foil?
Could i use Sodium Hydroxide (NaOH) or Potassium Hydroxide (KOH) and what would be the best mixture, how many g/l?
Hi there,
The corrosive electrolyte come with chloride ions as example and I suggest not difference to use the two electrolytes due to hydroxide ions as the same. Ok, use KOH in low concentration may be get a good results. Thus, The electrolytes studied so far can be grouped into four categories: organic electrolytes, ionic liquid based electrolytes, aqueous electrolytes, and solid or polymer-based electrolytes. However, common carbonate based electrolytic solutions are the most widely investigated. Generally the salts employed in sodium-ion battery have the same anions used in the field of LIBs technology, including (ClO4-), (PF6-), (BF4-), (CF3SO3-) and ([N(CF3SO2)2]-). The solvents employed include organic carbonates (linear and cyclic), esters, and ethers.
Regards,
Dear All,
I am doing some experiments on electrical conductivity of NaCl solution with different concentrations (200ppm.....10000ppm).
I am using a EC meter Kyoto Electronics CM-117. I would like to know how to make the temperature compensation to get results at the temperature of reference 25C.
Looking forward to hearing from you.
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