Difference between revisions of "Electric battery"
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(Created page with "{{Stub}} An '''electrical battery''' or simply '''battery''' is a device consisting of one or more electrochemical cells with external connections provided to power electrical...") |
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==Concept== | ==Concept== | ||
| − | When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of | + | When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of [[electron]]s that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. |
==References== | ==References== | ||
Latest revision as of 17:56, 16 August 2023
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An electrical battery or simply battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars.
Concept
When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy.
