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  2. Leclanché cell - Wikipedia

    en.wikipedia.org/wiki/Leclanché_cell

    A 1919 illustration of a Leclanché cell. The Leclanché cell is a battery invented and patented by the French scientist Georges Leclanché in 1866. [1] [2] [3] The battery contained a conducting solution (electrolyte) of ammonium chloride, a cathode (positive terminal) of carbon, a depolarizer of manganese dioxide (oxidizer), and an anode (negative terminal) of zinc (reductant).

  3. John Frederic Daniell - Wikipedia

    en.wikipedia.org/wiki/John_Frederic_Daniell

    His name is best known for his invention of the Daniell cell, [2] an element of an electric battery much better than voltaic cells. He also invented the dew-point hygrometer known by his name, [3] and a register pyrometer; [4] and in 1830 he erected in the hall of the Royal Society a water-barometer, with which he carried out a large number of ...

  4. History of the battery - Wikipedia

    en.wikipedia.org/wiki/History_of_the_battery

    The development of the lead-acid battery and subsequent "secondary" or "chargeable" types allowed energy to be restored to the cell, extending the life of permanently assembled cells. The introduction of nickel and lithium based batteries in the latter half of the 20th century made the development of innumerable portable electronic devices ...

  5. Sakizō Yai - Wikipedia

    en.wikipedia.org/wiki/Sakizō_Yai

    Sakizō Yai was born on January 13, 1864, at the house of Yai, to a samurai family in the Nagaoka Domain (currently Nagaoka, Niigata Prefecture). [1] The Yai family was an upper-class samurai family which held a property of more than 300 koku for generations, but at the age of six Sakizō's father died and the house went bankrupt.

  6. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    Internally contains two 1.5 V cells hence the nickname 'Duplex'. Is sometimes erroneously marketed as a "B" cell battery due to the similar size. In Switzerland as of 2008, 2R10 batteries accounted for 0.003% of primary battery sales. [75] 4SR44: PX28A A544 K28A V34PX 476A L1325F 28L 4LR44 (alkaline) 6135-01-444-2637 [76] 6135-14-549-0239 [77]

  7. Wilhelm Hellesen - Wikipedia

    en.wikipedia.org/wiki/Wilhelm_Hellesen

    In 1887 he designed what is thought to be the first dry cell battery based on the Leclanché cell design. [1] The same year he founded the company W. Hellesen In 1889 he sold his first batteries to the Danish Telephone Company. The same year a young chemist Valdemar Ludvigsen (1861–1939) came to the factory helping by the further development ...

  8. Battery nomenclature - Wikipedia

    en.wikipedia.org/wiki/Battery_nomenclature

    The older "No. 1" through "No. 5" batteries were discontinued, each being 1 to 5 inches high respectively, although the similarly sized Burgess No. 1 (C cell) and No. 2 (D cell) were still produced under that name through the 1950s. Eventually, the No. 6 was phased out by the 1970s and slowly replaced with the 6-volt four-cell battery.

  9. Dry cell - Wikipedia

    en.wikipedia.org/wiki/Dry_cell

    Dry cell battery by Wilhelm Hellesen 1890. Many experimenters tried to immobilize the electrolyte of an electrochemical cell to make it more convenient to use. The Zamboni pile of 1812 is a high-voltage dry battery but capable of delivering only minute currents. Various experiments were made with cellulose, sawdust, spun glass, asbestos fibers ...