D ry Cell By Serena Lydia Block B Introduction Alkaline dry cellalkaline battery a type of dry cell dependent upon the reaction between zinc and manganese dioxide ZnMnO 2 The origination of its name ID: 162739
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Slide1
The Alkaline
Dry Cell
By Serena, Lydia
Block: BSlide2
Introduction
Alkaline dry cell(alkaline battery): a type of dry cell dependent upon the reaction between zinc and manganese dioxide (Zn/MnO2). The origination of its name:
the electrolyte(KOH) is alkaline
its non-fluid electrolyteSlide3
The half-reaction are:
Anode: Zn(s) + 2OH−(aq) → ZnO(s) + H2O(l) + 2e− Cathode: 2MnO2(s) + H2
O
(l)
+ 2e
−
→Mn2O3(s) + 2OH−(aq)Slide4
In the earth
80% of manufactured batteries in the US 46% of all primary battery sales in Japan68% of all battery sales in Switzerland60% of all battery sales in the UK 47% of all battery sales in the EU20% of all battery sales in ChinaSlide5
Product
Common batteryA rechargeable batteryDetector Slide6
Common used
toys (robots and cars ) remoteswall clocks other light duty household itemsradiosphoto-flash applicationswatcheshigh-drain applicationscameraInterphoneRazorAlarmCalculatorHearing aids …
The best choice for your gadget!!!Slide7
Advantages of an Alkaline Battery
Chemical CompositionElectrolyte: a basic KOH paste(alkaline electrolyte)Anode : zinc powder provides greater surface area Slide8
Advantages of an Alkaline Battery
CapacityThe use of an alkaline compound more energy.Produce 500-700 percent more powerSlide9
Advantages of an Alkaline Battery
Shelf LifeNo voltage drop Ability to store for a long period of time.10 times longer than common dry cell.Slide10
Advantages of an Alkaline Battery
Performance in Different Environments Ability to be used in different temperatures. Common dry cell: 0 to 160 degreesAlkaline Battery: as low as -20 degreesSlide11
Disadvantages of an Alkaline Battery
Cost More expensive than common dry cellSlide12
How to recognize the carbon-zinc battery and alkaline battery in your daily life?
Appearance (more beautiful and better design)Touch (notch on the bottom)Weight (alkaline battery 23g ; carbon-zinc battery 15g)Sign (AR; LR)Slide13
References
Life Cycle Impacts of Alkaline Batteries with a Focus on End-of-Life - EBPA-EUMonthly battery sales statistics - MoETI - March 2011 ^ INOBAT 2008 statistics. Battery Waste Management - 2006 DEFRAEPBA statistics – 2000http://www.powerstream.com/BatteryFAQ.htmlhttp://www.ehow.com/info_12070433_alkaline-dry-cell-vs-ordinary-dry-cell.htmlhttp://www.ehow.com/facts_7719453_alkaline-vs-regular-battery.html
http://www.ehow.com/info_8297163_difference-between-alkaline-nonalkaline-batteries.html
http://www.odec.ca/projects/2006/glaz6j2/battery_info.htm#diagram
http://www.wisegeek.com/what-is-a-dry-cell-battery.htm
http://dict.battery.com.cn/detail_177.html
http://en.wikipedia.org/wiki/Alkaline_battery?vm=rSlide14
Homework
P232 #55 Thank you for your listening!