高容量电池充电的简化

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PersonalDataAssistants(PDAs),digitalcameras,laptop

computersandcellphoneshaveenthusiasticallyembracedthe

Lithium-Ionbatteryastheirpowersourceofchoice.Whilethefew

selectdesignersofthesedeviceshadawidevarietyofbatteries

tochoosefrom(suchasalkaline,NiMHandNiCd),theLithium-

Ionbatterybecamethepreferredpowersource.Thispreference

wasduetotheLithium-Ion’shighenergydensitybyweightand

volume,itsrelativelylowself-dischargerateandno“memory”.ChargingSimplifiedforHighCapacityBatteriesByBonnieC.Baker,MicrochipTechnologyInc.ANALOGDESIGNNOTEADN008PersonalDataAssistants(PDAs),digitalcameras,laptopPanasonicLithium-Ionbatterywithatypicalcapacityofcomputersandcellphoneshaveenthusiasticallyembracedthe1550mAh,hasapreferredchargingrateof1.085A(or70%Lithium-Ionbatteryastheirpowersourceofchoice.Whilethefewofcapacity).Panasonicsuggeststhatthechargingprocessselectdesignersofthesedeviceshadawidevarietyofbatteriestakesapproximatelytwohoursat20°C.If,forsomereason,tochoosefrom(suchasalkaline,NiMH