Changes

==Origin==

==Origin==

Anglo-French ''baterie'', from ''batre'' to beat, from [[Latin]] ''battuere''

Anglo-French ''baterie'', from ''batre'' to beat, from [[Latin]] ''battuere''

*[http://en.wikipedia.org/wiki/16th_century 16th Century]

*[https://en.wikipedia.org/wiki/16th_century 16th Century]

==Definitions==

==Definitions==

*1a : the act of battering or beating

*1a : the act of battering or beating

:b : a usually impressive or imposing [[group]] : [[array]]

:b : a usually impressive or imposing [[group]] : [[array]]

==Description==

==Description==

An [[electric]] '''battery''' is a device consisting of one or more [http://en.wikipedia.org/wiki/Electrochemical_cell electrochemical cells] that convert stored [[chemical]] energy into [[electrical]] energy. Each battery consists of a [[negative]] electrode (anode) that holds charged [[ions]], a [[positive]] electrode (cathode) that holds discharged ions, an electrolyte that allows ions to move from anode to cathode during discharge (and return during recharge) and terminals that allow current to [[flow]] out of the battery to perform work.

An [[electric]] '''battery''' is a device consisting of one or more [https://en.wikipedia.org/wiki/Electrochemical_cell electrochemical cells] that convert stored [[chemical]] energy into [[electrical]] energy. Each battery consists of a [[negative]] electrode (anode) that holds charged [[ions]], a [[positive]] electrode (cathode) that holds discharged ions, an electrolyte that allows ions to move from anode to cathode during discharge (and return during recharge) and terminals that allow current to [[flow]] out of the battery to perform work.

Batteries are either [http://en.wikipedia.org/wiki/Primary_battery primary] (single-use or "disposable") that are used once and discarded or [http://en.wikipedia.org/wiki/Secondary_battery secondary] (rechargeable batteries) that are discharged and recharged multiple times.

Batteries are either [https://en.wikipedia.org/wiki/Primary_battery primary] (single-use or "disposable") that are used once and discarded or [https://en.wikipedia.org/wiki/Secondary_battery secondary] (rechargeable batteries) that are discharged and recharged multiple times.

Batteries are made from many [[materials]] including various metals, carbon, polymers and even [[air]]. The most common are lead-acid batteries used in vehicles and lithium ion batteries used for portable electronics. Batteries come in many shapes and sizes, from miniature cells used to power [http://en.wikipedia.org/wiki/Hearing_aid hearing aids] and wristwatches to battery banks the size of rooms that provide standby power for [http://en.wikipedia.org/wiki/Telephone_exchange telephone exchanges] and computer [http://en.wikipedia.org/wiki/Data_center data centers].

Batteries are made from many [[materials]] including various metals, carbon, polymers and even [[air]]. The most common are lead-acid batteries used in vehicles and lithium ion batteries used for portable electronics. Batteries come in many shapes and sizes, from miniature cells used to power [https://en.wikipedia.org/wiki/Hearing_aid hearing aids] and wristwatches to battery banks the size of rooms that provide standby power for [https://en.wikipedia.org/wiki/Telephone_exchange telephone exchanges] and computer [https://en.wikipedia.org/wiki/Data_center data centers].

Batteries have been a recent [[focus]] of [[research]] and development, because they are seen as essential in the [[transition]] from fossil fuels to alternative energy, both for transport and [[electricity]] production and for powering portable devices of all kinds.

Batteries have been a recent [[focus]] of [[research]] and development, because they are seen as essential in the [[transition]] from fossil fuels to alternative energy, both for transport and [[electricity]] production and for powering portable devices of all kinds.

Billions of batteries are used each year to power devices as diverse as automobiles to mobile phones. According to a 2005 estimate, the worldwide battery industry generates US$48billion in sales each year, with 6% annual growth.[http://en.wikipedia.org/wiki/Battery_(electricity)]

Billions of batteries are used each year to power devices as diverse as automobiles to mobile phones. According to a 2005 estimate, the worldwide battery industry generates US$48billion in sales each year, with 6% annual growth.[https://en.wikipedia.org/wiki/Battery_(electricity)]

[[Category: Chemistry]]

[[Category: Chemistry]]

[[Category: Physics]]

[[Category: Physics]]