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2. Alkaline battery - Wikipedia

   en.wikipedia.org/wiki/Alkaline_battery

   An alkaline battery (IEC code: L) is a type of primary battery where the electrolyte (most commonly potassium hydroxide) has a pH value above 7. Typically these batteries derive energy from the reaction between zinc metal and manganese dioxide. Compared with zinc–carbon batteries of the Leclanché cell or zinc chloride types, alkaline ...

3. AA battery - Wikipedia

   en.wikipedia.org/wiki/AA_battery

   A Li-ion 1.5V AA-size battery, sold by the Chinese company Kentli as "Kentli PH5" since 2014 and with similar batteries later available from other suppliers is a AA-sized battery housing containing a rechargeable 3.7 V Li-ion cell with an internal buck converter at the positive terminal to reduce the output voltage to 1.5 V. [18] The Kentli ...

4. Battery leakage - Wikipedia

   en.wikipedia.org/wiki/Battery_leakage

   Alkaline batteries largely replaced zinc–carbon batteries in regular use by 1990. [5] After an alkaline battery has been spent, or as it reaches the ends of its shelf life, the chemistry of its cells change, and hydrogen gas is generated as a byproduct. [3]

5. Zinc–air battery - Wikipedia

   en.wikipedia.org/wiki/Zinc–air_battery

   A zinc–air battery is a metal–air electrochemical cell powered by the oxidation of zinc with oxygen from the air. During discharge, a mass of zinc particles forms a porous anode, which is saturated with an electrolyte. Oxygen from the air reacts at the cathode and forms hydroxyl ions which migrate into the zinc paste and form zincate (Zn ...

6. Comparison of commercial battery types - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_commercial...

   Shelf life Anode Electro­lyte Cathode Cutoff Nominal 100% SOC by mass by volume ... Low self-discharge nickel–metal hydride battery: 500–1,500 [13] Lithium ...

7. Lithium metal battery - Wikipedia

   en.wikipedia.org/wiki/Lithium_metal_battery

   CR2032 lithium button cell battery Lithium 9 volt, AA, and AAA sizes. The top object is a battery of three lithium-manganese dioxide cells; the bottom two are lithium-iron disulfide cells and are compatible with 1.5-volt alkaline cells. Lithium metal batteries are primary batteries that have metallic lithium as an anode.