提高了电池的安全性，收费，和燃料计量便携式媒体应用

提高了电池的安全性，收费，和燃料计量便携式媒体应用
Texas Instruments Incorporated Power Management




Improving battery safety, charging, and fuel
gauging in portable media applications
By Jinrong Qian
Battery Management Applications Manager
Introduction active material. Rapid temperature increases can occur if a
Portable media players and smartphones have become battery is overcharged at high current or has an internal
very popular over the past five years. The portable media short. During overcharging of a Li-Ion battery, active
player is a handheld device that can record and play back metallic lithium is deposited onto the anode. This material
audio/video from a TV, DVD player, camera, o