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| #REDIRECT ] | |||
| {{ref improve|date=December 2014}} | |||
| A '''solar battery''' is a ] that integrates a ] with battery power storage. | |||
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| A second meaning of '''solar battery''' are rechargeable batteries which have been developed specifically for use in photovoltaic systems or are just used for. They are used especially in stand-alone systems for storage of energy produced by solar panels and batteries as a buffer when major consumer operation. <ref>, abgerufen am 14. November 2013.</ref> Often, the term is also commonly used for built-in solar power applications batteries, even if they are not specified for it. | |||
| == History == | |||
| The first solar battery was developed in 2014 by researchers at ]. The researchers used a ] using ] that stores the power that it uses ] to decompose and re-form ].<ref>{{cite journal|last1=Yu|first1=Mingzhe|last2=Ren|first2=Xiaodi|last3=Ma|first3=Lu|last4=Wu|first4=Yiying|title=Integrating a redox-coupled dye-sensitized photoelectrode into a lithium–oxygen battery for photoassisted charging|journal=Nature Communications|date=3 October 2014|volume=5|pages=5111|doi=10.1038/ncomms6111}}</ref> It used three electrodes rather than the typical four. It featured a lithium plate base, two layers of electrode separated by a thin sheet of porous carbon and a ] gauze mesh that played host to a dye-sensitive photoelectrode. Porous materials allowed the battery's ions to oxidize into lithium peroxide, which chemically decomposes into lithium ions and stored as lithium metal. The device used conventional liquid electrolyte consisting of part salt and part solvent (] mixed with ] ].<ref>{{Cite web|title = World's first "aqueous solar flow battery" outperforms traditional lithium-iodine batteries|url = http://www.gizmag.com/aqueous-solar-flow-battery-osu/38748|website = www.gizmag.com|accessdate = 2015-12-13|date = August 3, 2015|last = Lavars|first = Nick}}</ref> | |||
| In 2015 the same team announced modifications to their design such that compared with traditional lithium iodine batteries, energy savings reached 20 percent. The new design no longer needs air to pass through it in order to function. Water was the solvent and ] is the salt. The result is a water-based electrolyte and a prototype now classed as an aqueous ]. The device is topped with a solid ] in a single solid sheet. Over 25 charge/discharge cycles, the battery released around 3.3 volts. While typical batteries are charged with 3.6 volts and discharge at 3.3 volts, the solar flow battery only needed 2.9 volts to charge with the solar panel making up the difference, almost 20 percent. | |||
| Another team wired four ]<nowiki/>s in series to enhance the voltage and photo-charge lithium batteries with 7.8% efficiency. Perovskite solar cells have active materials with a crystalline structure identical to the mineral ]. Perovskite cells convert a broader spectrum of sunlight into electricity than conventional silicon-based cells.<ref>{{Cite web|title = Researchers efficiently charge a lithium-ion battery with solar cell|url = http://www.rdmag.com/news/2015/08/researchers-efficiently-charge-lithium-ion-battery-solar-cell|website = Research & Development|accessdate = 2015-12-13|date = August 28, 2015|last = Mayhood|first = Eric}}</ref> | |||
| ==See also== | |||
| *] | |||
| *] | |||
| ==References== | |||
| {{Reflist|30em}} | |||
| {{electronics-stub}} | |||
| ] | |||
| ] | |||
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