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Waldemar Jungner

Waldemar Jungner
Person
Svenska dagbladets årsbok 1924 / Public domain · resizedfile

Ernst Waldemar Jungner (19 June 1869 – 30 August 1924) 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. He also worked on the electrolytic production of sodium carbonate and patented a rock drilling device.

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The People Who Made Rechargeable Batteries Practical
The People Who Made Rechargeable Batteries Practical
by gadget_bench  • 
A battery that works once on a lab bench is a long way from one you can recharge and use every day. These inventors and researchers changed what went inside the cell and what manufacturers could...
Technology
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