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Rockbox mail archiveSubject: why protect the batteries-why i go for the recorder,and not the fm-recorderwhy protect the batteries-why i go for the recorder,and not the fm-recorder
From: Martin <martindavidsson_at_gmx.de>
Date: Wed, 4 Jun 2003 00:24:31 +0200 The development of Lithium-Ion (Li-Ion) based batteries retained the beneficial electrochemical properties of metallic lithium without exhibiting most of the safety drawbacks. However, care must still be taken to not overcharge a Li-Ion battery. Overcharging results in the formation of pure lithium metal, which can react and cause overheating, fire and even explosions in extreme cases. Most Li-Ion batteries have built in safety mechanisms such as pressure actuated electrical disconnect to prevent the most drastic consequences, but careful circuit design must still be done to ensure that the battery is not overcharged. At the very least, the battery will be damaged and have a shorter lifetime. Electrolyte Li+ e LixC Li+ e Li1-xMn2O4 Li+ Li1-xMn2O4 + xLi+ + xe Charge Discharge LiMn2O4 Positive Negative Overall LixC Charge Discharge C + xLi+ + xe LixC + Li1-xMn2O4 Charge Discharge LiMn2O4 + C Received on 2003-06-04 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |