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  2. Baghdad Battery - Wikipedia

    en.wikipedia.org/wiki/Baghdad_Battery

    The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu , Iraq in 1936, close to the ancient city of Ctesiphon , the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is ...

  3. 18650 battery - Wikipedia

    en.wikipedia.org/wiki/18650_battery

    An 18650 battery [1] or 1865 cell [2] is a cylindrical lithium-ion battery common in electronic devices. The batteries measure 18 mm (0.71 in) in diameter by 65 mm (2.56 in) in length, giving them the name 18650. [3] The battery comes in many nominal voltages depending on the specific chemistry used.

  4. Lithium-ion battery - Wikipedia

    en.wikipedia.org/wiki/Lithium-ion_battery

    A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.

  5. List of battery types - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_types

    A Duracell AA size alkaline cell, one of the many types of battery This list is a summary of notable electric battery types composed of one or more electrochemical cells . Three lists are provided in the table.

  6. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    700 (Li–ion rechargeable) 3 (lithium) 3.6 (Li-ion) Cylinder +: Nub cylinder end −: Flat opposite end: H: 34.5 mm Ø: 17 mm [134] A lithium primary battery, not interchangeable with zinc types. A rechargeable lithium-ion version is available in the same size and is interchangeable in some uses. According to consumer packaging, replaces (BR ...

  7. Rechargeable battery - Wikipedia

    en.wikipedia.org/wiki/Rechargeable_battery

    A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use.

  8. Fire destroys Copenhagen's Old Stock Exchange dating to 1600s ...

    www.aol.com/news/fire-rages-17th-century-old...

    A fire raged through one of Copenhagen’s oldest buildings Tuesday, destroying about half of the 17th-century Old Stock Exchange and collapsing its iconic dragon-tail spire, as passersby rushed ...

  9. Ion exchange - Wikipedia

    en.wikipedia.org/wiki/Ion_exchange

    Ion-exchange resin beads Ion-exchange column used for protein purification. Ion exchange is a reversible interchange of one species of ion present in an insoluble solid with another of like charge present in a solution surrounding the solid. Ion exchange is used in softening or demineralizing of water, purification of chemicals, and separation ...