What Is Electric battery?
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A battery is a device consisting of one or more electrochemical cells with external connections for powering electrical devices such as flashlights, mobile phones, and electric cars. 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-energydifference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells, however the usage has evolved to include devices composed of a single cell.
Various cells and batteries (top left to bottom right): two AA, one D, one handheld ham radiobattery, two 9-volt (PP3), two AAA, one C, one camcorder battery, one cordless phone battery
Primary (single-use or "disposable") batteries are used once and discarded, as the electrodematerials are irreversibly changed during discharge; a common example is the alkaline battery used for flashlights and a multitude of portable electronic devices. Secondary (rechargeable) batteries can be discharged and recharged multiple times using an applied electric current; the original composition of the electrodes can be restored by reverse current. Examples include the lead-acid batteries used in vehicles and lithium-ionbatteries used for portable electronics such as laptops and mobile phones.
Batteries come in many shapes and sizes, from miniature cells used to power hearing aids and wristwatches to small, thin cells used in smartphones, to large lead acid batteries or lithium-ion batteries in vehicles, and at the largest extreme, huge battery banks the size of rooms that provide standby or emergency power for telephone exchangesand computer data centers.
Batteries have much lower specific energy(energy per unit mass) than common fuelssuch as gasoline. In automobiles, this is somewhat offset by the higher efficiency of electric motors in converting chemical energy to mechanical work, compared to combustion engines.
What are the 2 types of battery?
Batteries are basically classified into 2 types:
Non-rechargeable batteries (primary batteries)
Rechargeable batteries (secondary batteries)
What is battery made of?
60% of the battery is made up of a combination of materials like zinc (anode), manganese (cathode) and potassium. These materials are all earth elements. This combination of material is 100% recovered and reused as a micro-nutrient in the production of fertilizer to grow corn.
Which type of battery is best?
The two main types of rechargeable batteries are nickel-metal hydride and lithium-ion. Pros: Because they're rechargeable, they generate less waste than single-use batteries. They offer better long-term value than single-usebatteries (the more you use them, the cheaper they get).
Which battery is primary battery?
There are two basic types of batteries:primary and secondary. Primary batteries are “single use” and cannot be recharged. Drycells and (most) alkaline batteries are examples of primary batteries. The second type is rechargeable and is called a secondarybattery.
What type of cell is a battery?
Batteries are galvanic cells, or a series ofcells, that produce an electric current. Whencells are combined into batteries, the potential of the battery is an integer multiple of the potential of a single cell. There are two basictypes of batteries: primary and secondary.
What type of battery is dry cell?
A battery contains electrochemical cells that can store chemical energy to be converted to electrical energy. A dry-cell battery stores energy in an immobilized electrolyte paste, which minimizes the need for water. Common examples of dry-cell batteries include zinc-carbon batteries and alkaline batteries.
Is Lithium Ion a dry cell battery?
Lithium ion batteries represent a type of dry cell battery well-suited for use in cell phones, due to its high energy density, or its power stored versus weight. This means a small compact, durable battery can deliver a large amount of power.
Can I use higher mAh battery?
Q: Can I use a higher rated mAh battery in my electronic device (i.e. 1800mAh vs. 2000mAh)? A: Yes, the mAh rating will give you longer run times between recharges. Thehigher rated mAh of a battery has no effect on electronic devices other than they allow longer term use.
Why can't you recharge a non rechargeable battery?
Only batteries that are specifically labeled “rechargeable” should be recharged. Any attempt to recharge a non-rechargeable battery could result in rupture or leakage.
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