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2. Energy density - Wikipedia

   en.wikipedia.org/wiki/Energy_density

   Energy density. In physics, energy density is the amount of energy stored in a given system or region of space per unit volume. It is sometimes confused with energy per unit mass which is properly called specific energy or gravimetric energy density . Often only the useful or extractable energy is measured, which is to say that inaccessible ...

3. Mercury battery - Wikipedia

   en.wikipedia.org/wiki/Mercury_battery

   Mercury battery. A mercury battery (also called mercuric oxide battery, mercury cell, button cell, or Ruben-Mallory [1]) is a non-rechargeable electrochemical battery, a primary cell. Mercury batteries use a reaction between mercuric oxide and zinc electrodes in an alkaline electrolyte. The voltage during discharge remains practically constant ...

4. AAAA battery - Wikipedia

   en.wikipedia.org/wiki/AAAA_battery

   The AAAA battery (usually read as quadruple-A) is 42.5 mm long and 8.3 mm in diameter. The alkaline cell weighs around 6.5 g and produces 1.5 V. This size battery is also classified as R8D425 ( IEC) [1] and 25 ( ANSI / NEDA ). The alkaline battery in this size is also known by Duracell type number MN2500 or MX2500 and Energizer type number E96 .

5. 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.

6. Zinc–carbon battery - Wikipedia

   en.wikipedia.org/wiki/Zinc–carbon_battery

   Zinc–carbon batteries of various sizes. A zinc–carbon battery (or carbon zinc battery in U.S. English) is a dry cell primary battery that provides direct electric current from the electrochemical reaction between zinc (Zn) and manganese dioxide (MnO 2) in the presence of an ammonium chloride (NH 4 Cl) electrolyte.

7. Battery leakage - Wikipedia

   en.wikipedia.org/wiki/Battery_leakage

   Battery leakage. A nickel–cadmium Varta barrel battery that has leaked onto the mainboard of a Korg Poly-61, causing massive corrosion to circuit board traces and legs of integrated circuits. Battery leakage is the escape of chemicals, such as electrolytes, within an electric battery due to generation of pathways to the outside environment ...