Waldemar Jungner was a Swedish inventor-engineer born to two church ministers in 1869. That was a year of failed harvests and famine throughout the nation. As a consequence, Jungner was a sickly child who also contracted measles and scarlet fever. None the less, this remarkable man invented rechargeable nickel-iron (NiFe), nickel-cadmium (NiCd) and alkaline silver-cadmium (AgCd) batteries in 1899.
Jungner studied chemistry, mathematics, astronomy, botany, geology, and Latin at Uppsala University. And then he continued his further studies at Royal Institute of Technology in Stockholm. Science Direct explains how he searched for a better battery than lead acid. Because in those days the ''quantity and quality of their electrolyte varied during discharge''.
And so it came to pass that he registered a remarkable patent on March 11, 1899. This related to a new role for electrolyte in batteries, according to Science Direct:
Jungner followed through with a patent on January 22, 1901. This described the operation of nickel–cadmium (Ni–Cd) and nickel–iron (Ni–Fe) cells. However, Thomas Edison had been working on a related NI-Fe system in parallel. He patented his idea on February 5, 1901, leading to litigation that Jungner lost. From then on Jungner focused in nickel-cadmium batteries,
Jungner commercialized his NiCad battery invention, although he also investigated cement production, and extracting radium from ores. The nickel–cadmium battery he originally invented played an essential role in early space exploration, and portable terrestrial electrical devices. Waldemar Jungner packed a great deal of punch into a short 55 years, before he died of pneumonia in 1924.
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A storage battery has supported a recent rapid expansion of the portable electronic device market and has been developed to the market where a further development has been expected such as eco-friendly cars market such as EV and HEV or the power supply market of an electricity accumulation system of a renewable energy such as sunlight and wind power. A nickel–cadmium secondary battery plays a role as a pioneer making the importance of the storage battery recognized in these fields and has been used in many fields still now.
The nickel–cadmium secondary battery was invented in 1899 by Waldemar Jungner as a durable storage battery which endures severe conditions of use such as overcharge/overdischarge/long-term leaving to which a lead-acid storage battery has been unsuitable and has been used for a long time in various fields with the lead–acid storage battery, until a nickel–hydrogen battery and a lithium ion battery appeared in 1990s.
The nickel–cadmium secondary...
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A Swedish engineer and inventor who was born on June 19, 1869, Ernst Waldemar Jungner''s most regarded inventions were the nickel-iron electric storage battery (NiFe) and the nickel-cadmium battery (NiCd).
He went to Uppsala University to study astronomy, botany, chemistry, geology, Latin and mathematics. He has also founded “Ackumulator Aktiebolaget Jungner” which is now referred to as “SAFT AB,” a company that produces high quality batteries around the world.
The first NiCd was made by Jungner in year 1899 where its biggest competitor was the lead-acid battery. The lead-acid battery of the time was experiencing major problems because it was not chemically and physically robust: it was too big yet its power was not enough to keep equipment from working long hours. Unfortunately, NiCd could not compete against other types of batteries because the materials being used in it were too expensive. Because of that, they were only used for special applications.
A nickel-cadmium battery has nickel as its positive anode, cadmium as its negative cathode and alkaline solution as its electrolyte. What is nice about NiCd is that it prefers fast charging. It is termed to be strong in terms of its performance yet it does not emit too much noise. It also prefers rigorous operations and it can pull through them smoothly.
Prior to Thomas Edison, NiFe batteries were initially invented by Jungner. The Cadmium in his nickel-cadmium battery was being replaced by iron in different percentage to assess how well it could perform. The nickel-iron battery has surpassed the cadmium version in terms of price, but not in performance. This type of battery is less efficient and gassing (the production of hydrogen) occurs. However, he has acquired several patents for this invention.
NiFe batteries were also used on mining operations because of its resistance to too much vibration.
About Jungner nickel cadmium battery invention
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