Waldemar Jungner
Swedish engineer and inventor (1869-1924) · Sweden · On the map · Scientists · Died at 55
Ernst Waldemar Jungner was a Swedish inventor and engineer. In 1898 he invented the nickel-iron electric storage battery (NiFe), the nickel-cadmium battery (NiCd), and the rechargeable alkaline silver-cadmium battery (AgCd). As an inventor, he also fabricated a fire alarm based on different dilutions of metals.
Waldemar Jungner is read about 10 times a day, in 11 languages.
A typical day, 30 days to 21 September 2026
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About this person
He also worked on the electrolytic production of sodium carbonate and patented a rock drilling device.
Country
Sweden
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1869 to 1924 · aged 55
