page_title: Primary cell
hierarchical_section_title: Primary cell
caption_attribution_description: English: A side by side comparison of several batteries, with ruler and matchstick for scaling purposes. In order the batteries are: Sawyer Battery 4.5 V (3LR12) battery D (LR20) cell C (R14) cell AA (LR6) cell AAA (LR03) cell AAAA (LR8D425) cell A23 (8LR932) battery 9-Volt (6LR61) battery CR2032 battery LR44 battery Matchstick, silver cm ruler and a blue inch ruler used for scale. The grid in the background is 7mm square. Nederlands: Een vergelijking van verschillende batterijen naast elkaar, met een lucifer en een liniaal om de schaal aan te geven. Het rooster op de achtergrond heeft vierkanten van 7mm. De volgorde van de soort batterij is in de engelse vertaling te vinden bij de beschrijving en als aantekening op de afbeelding. Français&#160;: Une comparaison côte à côte de plusieurs piles, avec règles et quadrillage pour des motifs d'échelle Dans l'ordre les batteries sont: 3LR12 – ou pile 4,5&#160;V- LR20 R14 LR6 – ou parfois AA LR03 – ou parfois AAA LR8D425 – ou parfois AAAA 8LR932 – A23, 12&#160;V 6LR61 – ou pile 9&#160;V CR2032 LR44 Le quadrillage est espacé de sept millimètres, la première règle en centimètres, et la deuxième en pouces. Magyar: A különböző elemek méret szerinti összehasonlítása. A különféle típusú elemek balról jobbra haladva: 3LR12 – 4,5&#160;V-os elem, azaz zsebtelep LR20 – D, azaz góliátelem R14 – C, azaz bébitelep LR6 – AA, azaz ceruzaelem LR03 – AAA, azaz mikroelem LR8D425 – AAAA elem 8LR932 – A23, azaz 12&#160;V-os ceruzaelem 6LR61 – 9&#160;V-os elem CR2032 lítium gombelem LR44 gombelem A méretek szemléltetésést segíti a gyufaszál, a centiméter osztású vonalzó, a hűvelyk osztású vonalzó, valamint a 7&#160;mm osztású négyzetrács.
context_page_description: A primary cell is a battery that is designed to be used once and discarded, and not recharged with electricity and reused like a secondary cell. In general, the electrochemical reaction occurring in the cell is not reversible, rendering the cell unrechargeable. As a primary cell is used, chemical reactions in the battery use up the chemicals that generate the power; when they are gone, the battery stops producing electricity. In contrast, in a secondary cell, the reaction can be reversed by running a current into the cell with a battery charger to recharge it, regenerating the chemical reactants. Primary cells are made in a range of standard sizes to power small household appliances such as flashlights and portable radios.
  Primary batteries make up about 90% of the $50 billion battery market, but secondary batteries have been gaining market share. About 15 billion primary batteries are thrown away worldwide every year, virtually all ending up in landfills. Due to the toxic heavy metals and strong acids and alkalis they contain, batteries are hazardous waste. Most municipalities classify them as such and require separate disposal.
context_section_description: A primary cell is a battery (a galvanic cell) that is designed to be used once and discarded, and not recharged with electricity and reused like a secondary cell (rechargeable battery). In general, the electrochemical reaction occurring in the cell is not reversible, rendering the cell unrechargeable. As a primary cell is used, chemical reactions in the battery use up the chemicals that generate the power; when they are gone, the battery stops producing electricity. In contrast, in a secondary cell, the reaction can be reversed by running a current into the cell with a battery charger to recharge it, regenerating the chemical reactants. Primary cells are made in a range of standard sizes to power small household appliances such as flashlights and portable radios.
  Primary batteries make up about 90% of the $50 billion battery market, but secondary batteries have been gaining market share. About 15 billion primary batteries are thrown away worldwide every year, virtually all ending up in landfills. Due to the toxic heavy metals and strong acids and alkalis they contain, batteries are hazardous waste. Most municipalities classify them as such and require separate disposal. The energy needed to manufacture a battery is about 50 times greater than the energy it contains. Due to their high pollutant content compared to their small energy content, the primary battery is considered a wasteful, environmentally unfriendly technology. Due mainly to increasing sales of wireless devices and cordless tools which cannot be economically powered by primary batteries and come with integral rechargeable batteries, the secondary battery industry has high growth and has slowly been replacing the primary battery in high end products.
caption: A variety of standard sizes of primary cells. From left: 4.5V multicell battery, D, C, AA, AAA, AAAA, A23, 9V multicell battery, (top) LR44, (bottom) CR2032
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