An electrical battery is a combination of one or more electrochemical cells, used to convert stored chemical energy into electrical energy. The modern battery was the invention of Alessandro Volta. Volta's Voltaic pile was a set of galvanized cells working in series to boost its output. Since then batteries have undergone multiple facelifts and technologic advances and can be in various products used everyday. The battery has become a common power source for many household and industrial applications.
Batteries may be used once and discarded, or recharged for years as in standby power applications. Miniature cells are used to power devices such as hearing aids and wristwatches; larger batteries provide standby power for telephone exchanges or computer data centers.
Batteries have 6 basic parts:
1. Positive and Negative Terminals: the outer contacts of the battery.
2. Positive and Negative Electrodes: an electrical conductor used to make contact with a nonmetallic part of a circuit.
3. Cathode and Anode: the positively or negatively charged chemicals within the battery.
4. Collector Pin: used to connect the negative electrode to the circuit.
5. Separator: used to keep the chemicals of the cathode and anode separate.
6. Batteries provide electricity to the circuit it's connected to. The electrons flow from the positively charged electrode to the negative electrode creating the current that we know as electricity. The current is measured in amps and a battery is measured by its amp hours, how long it can sustain that current.
Primary Cell or Disposable Battery
A primary cell is any kind of battery in which the electrochemical reaction is not reversible. A common example of a primary cell is the disposable battery. These batteries cannot be recharged due to the materials either or both the cathode or anode being consumed during power production.
*Note: Primary Cells have one set of electrodes, cathode for positive and anode for negative.*
These are your common non-rechargeable AA, D, C, and 9V batteries. They are cheaper than their rechargeable counterparts of the same size.
Secondary or Rechargeable Batteries
A rechargeable battery is a group of one or more secondary cells. Rechargeable batteries use electrochemical reactions that are electrically reversible and do not consume their materials to create power. They instead are a power storage system. Instead of the current being created by direct consumption of its materials, rechargeable batteries current comes from the flow of stored electrons. Once its store is exhausted its time to recharge. Each chemistry has its own recommended number of recharges.
Rechargeable batteries come in many different sizes and use different combinations of chemicals; Commonly used secondary cell chemistries are lead acid, nickel cadmium (NiCd), nickel metal hydride (NiMH), lithium ion (Li-ion), and lithium ion polymer (Li-ion polymer).
*Note: Secondary Cells have two sets of electrodes. The positive electrode is the cathode on discharge and the anode on charge, and vice versa for the negative electrode. *
Batteries may be used once and discarded, or recharged for years as in standby power applications. Miniature cells are used to power devices such as hearing aids and wristwatches; larger batteries provide standby power for telephone exchanges or computer data centers.
Batteries have 6 basic parts:
1. Positive and Negative Terminals: the outer contacts of the battery.
2. Positive and Negative Electrodes: an electrical conductor used to make contact with a nonmetallic part of a circuit.
3. Cathode and Anode: the positively or negatively charged chemicals within the battery.
4. Collector Pin: used to connect the negative electrode to the circuit.
5. Separator: used to keep the chemicals of the cathode and anode separate.
6. Batteries provide electricity to the circuit it's connected to. The electrons flow from the positively charged electrode to the negative electrode creating the current that we know as electricity. The current is measured in amps and a battery is measured by its amp hours, how long it can sustain that current.
Primary Cell or Disposable Battery
A primary cell is any kind of battery in which the electrochemical reaction is not reversible. A common example of a primary cell is the disposable battery. These batteries cannot be recharged due to the materials either or both the cathode or anode being consumed during power production.
*Note: Primary Cells have one set of electrodes, cathode for positive and anode for negative.*
These are your common non-rechargeable AA, D, C, and 9V batteries. They are cheaper than their rechargeable counterparts of the same size.
Secondary or Rechargeable Batteries
A rechargeable battery is a group of one or more secondary cells. Rechargeable batteries use electrochemical reactions that are electrically reversible and do not consume their materials to create power. They instead are a power storage system. Instead of the current being created by direct consumption of its materials, rechargeable batteries current comes from the flow of stored electrons. Once its store is exhausted its time to recharge. Each chemistry has its own recommended number of recharges.
Rechargeable batteries come in many different sizes and use different combinations of chemicals; Commonly used secondary cell chemistries are lead acid, nickel cadmium (NiCd), nickel metal hydride (NiMH), lithium ion (Li-ion), and lithium ion polymer (Li-ion polymer).
*Note: Secondary Cells have two sets of electrodes. The positive electrode is the cathode on discharge and the anode on charge, and vice versa for the negative electrode. *
-- written by Sarah Johnson in partnership with http://www.ExactBattery.com
Article Source: http://EzineArticles.com/?expert=Sarah_W_Johnson
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