Episode 1 of 1

Invention of Battery Technologies and Claimed 1899 Patent Filing

When
1898-1899
Where
Sweden
Part of
Event of 1899: Waldemar Jungner files the patent application for the first alkaline battery and

The legacy row claims Jungner filed a patent for an alkaline battery in 1899, receiving Swedish patent number 11132. The supplied passages support his 1898 battery inventions and the 1899 creation of the first Ni-Cd battery, but not the specific patent filing.

The legacy row identifies a 1899 patent filing for an alkaline battery, with Swedish patent number 11132, as the core development. However, the supplied passages do not confirm this filing date or patent number. One source states Jungner invented the nickel-iron, nickel-cadmium, and rechargeable alkaline silver-cadmium batteries in 1898. Another source states the first Ni-Cd battery was created in 1899. These two years are not reconciled by the evidence, and neither is asserted as the filing date.

Sources

  1. Waldemar Jungner Wikipedia, revision of 2026-02-20
  2. Nickel–cadmium battery Wikipedia, revision of 2026-09-17

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.